JP7161574B2

JP7161574B2 - Solar power system

Info

Publication number: JP7161574B2
Application number: JP2021080174A
Authority: JP
Inventors: 賢太木村
Original assignee: 株式会社デンカシンキ
Priority date: 2018-03-07
Filing date: 2021-05-11
Publication date: 2022-10-26
Anticipated expiration: 2038-03-07
Also published as: JP2019159350A; JP2021120888A; JP6884115B2

Description

本発明は、例えば一般住宅等に設置された太陽光パネルにより発電をする太陽光発電システムに関する。 The present invention relates to a photovoltaic power generation system that generates power using photovoltaic panels installed in, for example, ordinary houses.

近年、一般住宅への電力の販売は、従来の発電及び配電を行う電力会社だけでなく、電力小売業者も行うことができようになっている。この電力小売業者は、電力事業者として、電力会社から卸電力を購入し、その卸電力を需要家に販売する事業を行っている。また最近では太陽光発電システムの事業にも関わってきている。 In recent years, the sale of electricity to general households has become possible not only by conventional electric power companies that generate and distribute electricity, but also by electricity retailers. This electric power retailer, as an electric power company, purchases wholesale electric power from electric power companies and sells the wholesale electric power to consumers. Recently, it has also been involved in the business of solar power generation systems.

太陽光発電は、太陽電池を用いて太陽光を直接的に電力に変換する発電方式であり、二酸化炭素等の温室効果ガス排出量を削減し、地球環境の悪化を抑制するためには有用である。このため、再生可能エネルギーの固定価格買取制度を設けて太陽光発電の普及が図られているが、現在、日本国内における太陽光発電システムの普及率は７％程度でしかない。 Photovoltaic power generation is a power generation method that uses solar cells to directly convert sunlight into electricity. be. For this reason, a feed-in tariff system for renewable energy has been established to spread photovoltaic power generation, but at present, the penetration rate of photovoltaic power generation systems in Japan is only about 7%.

この普及率を伸ばすには、日当たりのよいスペースが多く残っている一般住宅の屋根にも太陽光パネルを設置して発電するのが望ましいが、従来においては、通常、一般住宅の所有者が太陽光発電設備を購入しなければならず、住宅の新築時に太陽光発電を導入したくても現実には予算の都合により導入を断念する場合や、既存の住宅等の屋根に太陽光パネルを設置したくても金銭的に余裕がないため導入を先送りする場合が少なくない。これが一般住宅での太陽光発電の普及率が伸びない原因の一つになっている。 In order to increase this penetration rate, it is desirable to install solar panels on the roofs of general houses that still have plenty of sunny spaces to generate electricity. If you have to purchase photovoltaic power generation equipment and want to introduce photovoltaic power generation when building a new house, but in reality you give up on introducing it due to budget constraints, or install photovoltaic panels on the roof of an existing house, etc. Even if they want to, there are many cases in which the introduction is postponed due to lack of financial resources. This is one of the reasons why the penetration rate of photovoltaic power generation in general houses has not increased.

そこで、一般住宅の所有者の太陽光発電設備購入による経済的負担を無くすために、従来においては、例えば下記特許文献１に開示されているように、電力会社が太陽光発電設備の設置場所を一般住宅の所有者より借り受け、その設置場所に太陽光発電設備を設置し、その一般住宅の所有者に太陽光発電設備を貸与し、その太陽光発電設備により発電される電力を配電し、前記太陽光発電設備の設置場所の賃借料と、その場所で消費される電力料金とを清算するようにした太陽光発電システムや、第三者に太陽光発電設備の設置へ出資してもらい、その太陽光発電設備への出資に対する配当と、その場所で消費される電力料金とを清算するようにした太陽光発電システムも提案されている。 Therefore, in order to eliminate the economic burden of purchasing solar power generation equipment for the owner of a general house, conventionally, as disclosed in Patent Document 1 below, for example, the power company decides the installation location of the solar power generation equipment. Rent from the owner of a general house, install solar power generation equipment at the installation site, lend the solar power generation equipment to the owner of the general house, distribute the power generated by the solar power generation equipment, A solar power generation system that settles the rental fee for the installation site of the solar power generation facility and the electricity cost consumed at that location, or a third party that invests in the installation of the solar power generation facility, A photovoltaic power generation system has also been proposed in which dividends for investments in photovoltaic power generation facilities are settled against power charges consumed there.

特開２００２－２８１６６８号公報Japanese Patent Application Laid-Open No. 2002-281668

ところが、太陽光発電設備の設置場所を一般住宅の所有者より借り受けて太陽光発電設備を設置し、その一般住宅の所有者に太陽光発電設備を貸与し、その太陽光発電設備により発電される電力を配電し、前記太陽光発電設備の設置場所の賃借料と、その場所で消費される電力料金とを清算するようにした場合、太陽光発電設備の設置場所を貸与する一般住宅の所有者は、将来にわたり、自前の太陽光発電設備を所有することができず、自前の太陽光発電設備で発電した電力を使用することにより電力料金の支払いを大幅に低減するということも望めない。そして太陽光発電設備の設置場所の利用についても契約に拘束される。 However, the installation site of the solar power generation equipment is rented from the owner of the general house, the solar power generation equipment is installed, and the solar power generation equipment is lent to the owner of the general house, and the solar power generation equipment is used to generate electricity. An owner of a general house who rents a place where a photovoltaic power generation facility is installed when power is distributed and the rent of the place where the photovoltaic power generation facility is installed and the electricity bills consumed at the place are settled. will not be able to own their own photovoltaic power generation facilities in the future, nor can they hope to significantly reduce the payment of electricity charges by using the power generated by their own photovoltaic power generation facilities. Also, the use of the site where the solar power generation equipment is installed is bound by the contract.

また、電力事業者が借りた設置場所に太陽光発電設備が設置されている限り、その太陽光発電設備による発電電力量を管理し、太陽光発電設備への出資者に対する配当金の支払いや、発電電力に対する電気料金の管理業務を続けなければならない。そのため、これらの管理業務により電力事業者が継続的に負担を強いられることになる。 In addition, as long as solar power generation equipment is installed at the installation site rented by the electric power company, we will manage the amount of power generated by the solar power generation equipment, pay dividends to the investors of the solar power generation equipment, We must continue to manage electricity tariffs for generated electricity. As a result, these management tasks place a constant burden on the electric power company.

本発明は、従来のこのような問題点に鑑みてなされたものである。本発明の主な目的は、一般住宅等を所有する需要家が、太陽光発電等の太陽光発電設備を、設備購入による経済負担を負うことなく自宅の屋根等に設置して利用することができ、かつ太陽光発電設備に関する電力事業者の管理業務の負担を軽減することができる太陽光発電システムを提供することにある。 The present invention has been made in view of such conventional problems. The main purpose of the present invention is to enable consumers who own general houses to install and use photovoltaic power generation equipment such as photovoltaic power generation equipment on the roof of their homes without bearing the economic burden of purchasing the equipment. To provide a photovoltaic power generation system capable of reducing the burden of management work on a power supplier regarding photovoltaic power generation equipment.

Means for solving the problem and effects of the invention

本発明の第１の側面に係る太陽光発電システムによれば、送電電力の配電線と需要家の所有する敷地に設けた分電盤とを接続する引込電路と、前記敷地内に設置した、太陽光エネルギーによる太陽光発電設備と、前記太陽光発電設備と前記分電盤とを接続する発電側電路と、前記引込電路を通じて前記分電盤に供給する引込電力の電力量である引込電力量、及び、前記引込電路を通じて前記配電線へ供給する、前記太陽光発電設備で発電された発電電力の余剰分の電力量である逆潮流電力量を計量することができる、前記引込電路に設けた引込口電力量計量手段とを備え、前記引込電力は電力小売業者が電力卸業者から購入して前記需要家に販売し、前記逆潮流電力は前記電力卸業者が前記太陽光発電設備の所有者から直接又は間接的に購入することとした太陽光発電システムであって、前記太陽光発電設備は投資家が所有権を有し、所定期間毎に、前記電力小売業者が前記需要家から前記発電電力の使用料金を徴収すると共に、前記太陽光発電設備の所有者に配当料金を支給することとし、所定期間毎の前記逆潮流電力の売電料金並びに前記配当料金からなる前記投資家の所定期間毎の収入の積算金額が目標額に達したとき、前記太陽光発電設備の所有権を前記投資家から前記需要家に移転することを前提として設定された前記目標額の設定値を記憶する目標額設定部と、前記発電側電路に設けた発電電力計量手段により所定期間毎に計量された前記発電電力量、及び前記引込口電力量計量手段により所定期間毎に計量された前記逆潮流電力量並びに所定期間毎に計量された前記引込電力量の各入力値を記憶する計量値入力部と、引込電力の単価、逆潮流電力の単価、発電電力の販売単価、発電電力の配当単価を夫々変更可能に設定することができ、かつ前記引込電力の単価、逆潮流電力の単価、発電電力の販売単価、発電電力の配当単価の各設定値を記憶する電力単価設定部と、前記計量値入力部に記憶した発電電力量と逆潮流電力量に基づき、前記発電電力の電力量のうち前記分電盤を通じた消費分を算出して記憶する発電電力の消費分算出部と、前記電力単価設定部に記憶した逆潮流電力の単価と、前記計量値入力部に記憶した逆潮流電力量とを乗算することにより逆潮流電力の売電料金を算出して記憶する売電料金算出部と、前記計量値入力部に記憶した前記引込電力量の記憶値と前記電力単価設定部に記憶した引込電力の単価とに基づき引込電気料金を算出して記憶する引込電気料金算出部と、前記発電電力の消費分算出部に記憶した、前記発電電力量のうちの分電盤を通じて消費された消費分と、前記電力単価設定部に記憶した発電電力の販売単価とを乗算することにより前記発電電力量の消費に対する発電電力消費料金を算出して記憶する発電電力消費料金算出部と、前記引込電力料金の記憶値に前記発電電力消費料金の記憶値を加算することで徴収料金を演算する徴収料金算出部と、前記電力単価設定部に記憶した発電電力の配当単価と、前記発電電力の消費分算出部に記憶した前記消費分とを乗算することにより配当金額を算出して記憶する配当金額算出部と、前回の計算日までの前記投資家の所定期間毎の収入を積算した収入積算金額を記憶する収入積算金額記憶部と、前記配当金額算出部の配当料金の記憶値と、前記売電料金算出部の売電料金の記憶値と、前記収入積算金額記憶部の収入積算金額の記憶値とに基づき、今回までの収入積算金額を算出して記憶する収入積算金額算出部と、前記収入積算金額算出部の収入積算金額の記憶値と、前記目標額設定部の目標額の記憶値と比較して、前記収入積算金額が目標額以上になったとき所有権移転可能と判定し、その判定結果を記憶する判定部と、前記収入積算金額算出部に記憶した今回までの収入積算金額、前記発電電力消費料金算出部が記憶している発電電力消費料金、前記引込電気料金算出部が記憶している引込電気料金、前記徴収料金算出部が記憶している徴収料金、前記配当金額算出部が記憶している配当金額を前記収入積算金額記憶部へ出力し、前記判定部が記憶している判定結果が所有権移転可能との結果であるとき、所有権移転可能との検出情報の出力を出力装置へ指令する出力制御部と、を備えるように構成することができる。 According to the photovoltaic power generation system according to the first aspect of the present invention, a lead-in circuit that connects a distribution line for transmitted power and a distribution board provided on a site owned by a consumer, and installed on the site, Photovoltaic power generation equipment using solar energy, a power generation side circuit that connects the photovoltaic power generation equipment and the distribution board, and the amount of incoming power that is the amount of incoming power supplied to the distribution board through the incoming circuit , and a reverse flow power amount that is a surplus power amount of the power generated by the solar power generation equipment, which is supplied to the distribution line through the lead-in line, can be measured. a service inlet power amount metering means, wherein the service power retailer purchases the service power from the power wholesaler and sells it to the consumer, and the reverse flow power is purchased by the power wholesaler as the owner of the solar power generation facility. The photovoltaic power generation system is purchased directly or indirectly from In addition to collecting the power usage fee, a dividend fee is paid to the owner of the solar power generation facility, and the investor's predetermined period consisting of the reverse flow power sales fee and the dividend fee for each predetermined period A target to store the set value of the target amount set on the premise that the ownership of the solar power generation facility will be transferred from the investor to the consumer when the integrated amount of income per unit reaches the target amount. Amount setting unit, the generated power amount measured for each predetermined period by the generated power measuring means provided in the power generation side electric circuit, and the reverse flow power amount measured for each predetermined period by the service inlet power amount measuring means and a measured value input unit for storing each input value of the amount of drawn electric power weighed for each predetermined period, and a unit price of drawn electric power, a unit price of reverse flow electric power, a unit selling price of generated electric power, and a unit price of distributed electric power. a power unit price setting unit that can be set to be possible and stores each set value of the unit price of incoming power, the unit price of reverse flow power, the unit price of generated power, and the unit price of dividend of generated power; and the measured value input unit. a generated power consumption calculation unit that calculates and stores a consumption amount through the distribution board of the generated power amount based on the generated power amount and the reverse flow power amount stored in the power unit price setting unit; a power selling charge calculation unit that calculates and stores a selling charge of the reverse flow power by multiplying the unit price of the reverse flow power stored in the measurement value input unit by the reverse flow power amount stored in the measured value input unit; The stored value of the amount of power drawn in stored in the value input unit and the stored value in the power unit price setting unit an electricity bill calculation unit that calculates and stores an electricity bill for electricity drawn in based on the unit price of electricity drawn in; a generated power consumption rate calculation unit that calculates and stores a generated power consumption rate for consumption of the generated power amount by multiplying the generated power consumption rate by the unit price of the generated power stored in the power unit price setting unit; a collected charge calculation unit that calculates a collection charge by adding the stored value of the generated power consumption charge to the stored charge value; a dividend unit price of the generated power stored in the power unit price setting unit; a dividend amount calculation unit that calculates and stores a dividend amount by multiplying the consumption amount stored in the calculation unit; An integrated revenue amount storage unit to be stored, a stored value of the dividend fee in the dividend amount calculation unit, a stored value of the electricity sales fee in the electricity sale fee calculation unit, and a stored value of the integrated income amount in the integrated income amount storage unit an integrated revenue amount calculation unit that calculates and stores the integrated revenue amount up to this time based on the above; a stored value of the integrated revenue amount in the integrated revenue amount calculation unit; and a stored value of the target amount in the target amount setting unit. a determination unit that determines that the ownership can be transferred when the integrated revenue amount is equal to or greater than the target amount, and stores the determination result; Generated power consumption charge stored by the generated power consumption charge calculation unit, incoming electricity charge stored by the incoming electricity charge calculation unit, collected charge stored by the collected charge calculation unit, and dividend amount calculation unit outputs the stored dividend amount to the accumulated income storage unit, and outputs detection information indicating that the ownership can be transferred when the determination result stored in the determination unit indicates that the ownership can be transferred. to the output device, and an output control unit for commanding the output device.

前記構成によれば、判定部は、目標額設定部に設定された目標値と収入積算金額算出部に記憶された投資家の収入の積算金額とを比較して、投資家の収入の積算金額が前記目標値以上になったとき所有権移転可能の検出情報を出力するので、投資家の収入の積算金額が太陽光発電設備を譲渡するために予め定めた目標額に到達したことを的確に検出することができる。それによって、適正な時期に太陽光発電設備の所有権を出資者から需要家に移転することができ、太陽光発電設備は需要家の所有となるので、太陽光発電設備により発電した電力は無料で需要家自身が消費し、売電電力が生じたときは、その対価を需要家自身が受けとることができるようになる。しかも電力小売業者は、太陽光発電設備の所有権が需要家に移転した後、その太陽光発電設備による発電電力の電力量を把握する必要がなくなり、従来のように引込口電力量計量手段により計量した消費電力の電力量と逆潮流電力の電力量に基づき電気料金を計算して需要家に請求すればよいので、電気料金管理業務に対する負担が軽減される。また発電電力量のうちの分電盤を通じて消費された消費分を算出するので、その消費分を計量する電力量計を設置する必要がなく発電システムを簡素化することができる。 According to the above configuration, the determination unit compares the target value set in the target amount setting unit and the integrated amount of income of the investor stored in the integrated income calculation unit, and determines the integrated amount of income of the investor. becomes equal to or greater than the target value, the detection information indicating that the ownership rights can be transferred is output. Therefore, it is possible to accurately confirm that the integrated amount of the income of the investor has reached the predetermined target amount for transferring the photovoltaic power generation facility. can be detected. As a result, the ownership of the solar power generation equipment can be transferred from the investor to the consumer at an appropriate time, and the solar power generation equipment will be owned by the consumer, so the electricity generated by the solar power generation equipment will be free. When the consumer itself consumes and sells electricity, the consumer can receive the price. Moreover, after the ownership of the photovoltaic power generation facility is transferred to the consumer, the electricity retailer no longer needs to know the amount of power generated by the photovoltaic power generation facility. Since the electricity bill can be calculated and billed to the consumer based on the measured amount of power consumption and the amount of reverse flow power, the burden on electricity rate management work can be reduced. In addition, since the amount of generated power consumed through the distribution board is calculated, there is no need to install a watt-hour meter for measuring the amount of power consumption, and the power generation system can be simplified.

また、前記構成によれば、発電電力の消費料金の出力が可能であるので、需要家に電気料金を請求したり徴収したりする際に便利である。 Moreover, according to the above configuration, it is possible to output the consumption charge for the generated power, which is convenient when charging or collecting the electricity charge from the consumer.

さらにまた、前記構成によれば、引込電気料金の出力が可能であるので、需要家に電気料金を請求したり徴収したりする際に便利である。 Furthermore, according to the above configuration, it is possible to output the incoming electricity bill, which is convenient when charging or collecting the electricity bill from the consumer.

さらにまた、前記構成によれば、電気料金の請求又は徴収の際に、需要家に請求すべき金額を算出するために、引込電気料金と発電電力消費料金とを足し算する作業が不要になるので便利である。 Furthermore, according to the above configuration, when billing or collecting electricity charges, there is no need to add the incoming electricity charge and the generated power consumption charge in order to calculate the amount to be billed to the consumer. Convenient.

前記構成によれば、逆流電力の単価、発電電力の配当単価の各設定値を多様に変えることができるので、例えば電力卸業者、投資家に対する多様な契約に柔軟に対処することができる。 According to the above configuration, it is possible to variously change the set values of the backflow power unit price and the generated power dividend unit price, so that it is possible to flexibly deal with various contracts with power wholesalers and investors, for example.

さらにまた、前記構成によれば、発電電力の販売単価の設定値を多様に変えることができるので、発電電力消費料金に関し、需要家に対する多様な契約に柔軟に対処することができる。 Furthermore, according to the above configuration, it is possible to variously change the set value of the unit selling price of generated power, so that it is possible to flexibly deal with various contracts with consumers regarding the generated power consumption rate.

さらにまた、前記構成によれば、引込電力の単価の設定値を多様に変えることができるので、例えば卸電力の単価の変動に応じて需要家に対する多様な契約に柔軟に対処することができる。 Furthermore, according to the above configuration, it is possible to variously change the set value of the unit price of incoming power, so that it is possible to flexibly deal with various contracts for consumers according to fluctuations in the unit price of wholesale power, for example.

本発明の第２の側面に係る太陽光発電システムによれば、前記売電料金算出部を、既に算出した売電料金の入力値を記憶する売電料金入力部に替える共に、既に算出した引込電気料金の入力値を記憶する引込電気料金入力部を備えるように構成することができる。 According to the photovoltaic power generation system according to the second aspect of the present invention, the power selling rate calculation unit is replaced with a power selling rate input unit that stores an input value of an already calculated power selling rate. It can be configured to include an incoming electricity bill input unit that stores the input value of the electricity bill.

本発明の第３の側面に係る発電システムの電気料金管理装置は、前記電力小売業者の代わりに前記電力卸業者が前記需要家に電力を販売するようにした発電システムの前記電力小売業者の代わりに、前記電力卸業者が前記需要家に電力を販売するようにした発電システムの電気料金管理装置としてもよい。 An electricity rate management device for a power generation system according to a third aspect of the present invention is a power wholesaler that sells power to the consumer instead of the power retailer, instead of the power retailer of the power generation system. Secondly, the electricity rate management device for a power generation system may be such that the electricity wholesaler sells electricity to the consumer.

本発明を適用した発電システムの一例を示すブロック図である。BRIEF DESCRIPTION OF THE DRAWINGS It is a block diagram which shows an example of the electric power generation system to which this invention is applied. 本発明の一実施例に係る発電システムの電気料金管理装置のハードウェアの概略説明図である。1 is a schematic explanatory diagram of hardware of an electricity rate management device of a power generation system according to an embodiment of the present invention; FIG. 本発明の一実施例に係る発電システムの電気料金管理装置機能的な構成を説明するためのブロック図である。1 is a block diagram for explaining the functional configuration of an electricity rate management device of a power generation system according to an embodiment of the present invention; FIG. 本発明の他の実施例を説明するためのブロック図である。FIG. 4 is a block diagram for explaining another embodiment of the present invention;

以下、本発明の実施の形態を図面に基づいて説明する。ただし、以下に示す実施の形態は、本発明の技術思想を具体化するための発電システムの電気料金管理装置を例示するものであって、本発明はそれらを以下のものに特定しない。また、本明細書は特許請求の範囲に示される部材を、実施の形態の部材に特定するものでは決してない。特に実施の形態に記載されている構成部品の寸法、材質、形状、その相対的配置等は特に特定的な記載がない限りは、本発明の範囲をそれのみに限定する趣旨ではなく、単なる説明例にすぎない。なお、各図面が示す部材の大きさや位置関係等は、説明を明確にするため誇張していることがある。さらに以下の説明において、同一の名称、符号については同一もしくは同質の部材を示しており、詳細説明を適宜省略する。さらに、本発明を構成する各要素は、複数の要素を同一の部材で構成して一の部材で複数の要素を兼用する態様としてもよいし、逆に一の部材の機能を複数の部材で分担して実現することもできる。
（発電システム） BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the embodiments shown below are examples of an electricity rate management device for a power generation system for embodying the technical idea of the present invention, and the present invention does not specify them as follows. In addition, this specification does not specify the members shown in the claims as the members of the embodiment. Unless otherwise specified, the dimensions, materials, shapes, relative arrangements, etc. of components described in the embodiments are not intended to limit the scope of the present invention, but are merely explanations. Just an example. Note that the sizes and positional relationships of members shown in each drawing may be exaggerated for clarity of explanation. Furthermore, in the following description, the same names and symbols indicate the same or homogeneous members, and detailed description thereof will be omitted as appropriate. Furthermore, each of the elements constituting the present invention may be configured with the same member so that a single member may serve as a plurality of elements, or conversely, the function of one member may be performed by a plurality of members. It can also be realized by sharing.
(power generation system)

図１に示すように、本発明の一実施例に係る発電システムの電気料金管理装置１を適用する発電システム２は、送電電力の配電線３と需要家の所有する敷地に設けた分電盤４とを接続する引込電路５と、分電盤４を設けた敷地内に設置した、太陽光エネルギーによる太陽光発電設備６と、この太陽光発電設備６と分電盤４とを接続する発電側電路７と、引込電路５に設けた、引込口電力量計量手段８とを備える。 As shown in FIG. 1, a power generation system 2 to which an electricity rate management device 1 for a power generation system according to an embodiment of the present invention is applied includes distribution lines 3 for transmitted power and a distribution board provided on a site owned by a customer. 4, a photovoltaic power generation facility 6 using solar energy installed in the site where the distribution board 4 is provided, and power generation connecting the photovoltaic power generation facility 6 and the distribution board 4 A side electric line 7 and a lead-in electric energy measuring means 8 provided in the lead-in electric line 5 are provided.

太陽光発電設備６は、この実施例では太陽光を利用して発電する太陽光発電パネル９を備えている。太陽光発電パネル９は、需要家の敷地にある建物の日当たりの良い屋根等に装着されており、太陽光を受けて直流電力を発生させる。発生した直流電力は接続箱１０を経てパワーコンディショナー１１へ供給され、パワーコンディショナー１１により商用の交流電力に変換される。そして、この交流電力は開閉器１２を経て太陽光発電設備６から発電電力として出力される。 The photovoltaic power generation facility 6 includes photovoltaic panels 9 that generate power using sunlight in this embodiment. The photovoltaic panel 9 is attached to a sunny roof of a building on the site of the customer, and receives sunlight to generate DC power. The generated DC power is supplied to the power conditioner 11 through the junction box 10 and converted into commercial AC power by the power conditioner 11 . Then, this AC power is output as generated power from the photovoltaic power generation equipment 6 via the switch 12 .

太陽光発電設備６から出力された発電電力は、発電側電路７を通じて分電盤４へ供給され、分電盤４から、需要家の敷地にある負荷に供給される。太陽光発電設備６による発電電力が分電盤４に接続された負荷の消費電力より小さいときは、配電線３からの送電電力が引込電路５を通じて分電盤４に供給され、発電電力の不足分を補う。逆に、分電盤４に接続された負荷が発電電力より小さいときは、その発電電力の余剰分が逆潮流電力となって引込電路５を通じて配電線３に供給される。 The generated power output from the photovoltaic power generation equipment 6 is supplied to the distribution board 4 through the electric line 7 on the power generation side, and is supplied from the distribution board 4 to the load on the site of the customer. When the power generated by the photovoltaic power generation equipment 6 is less than the power consumed by the load connected to the distribution board 4, the power transmitted from the distribution line 3 is supplied to the distribution board 4 through the incoming circuit 5, resulting in a shortage of generated power. make up for Conversely, when the load connected to the distribution board 4 is smaller than the generated power, the surplus of the generated power is supplied to the distribution line 3 through the lead-in line 5 as reverse flow power.

引込口電力量計量手段８は、双方向の計量機能を有する電力量計又は互いに逆向きに配置した一方向の計量機能を有する二つの電力量計からなり、引込電路５を通じて分電盤４へ供給する電力の電力量である引込電力量、及び発電システム２から配電線３へ逆流する逆潮流電力量を計量することができる。 The service entrance power amount metering means 8 consists of a power meter having a bidirectional metering function or two power meters having a unidirectional metering function arranged opposite to each other. A pull-in power amount, which is the amount of power to be supplied, and a reverse flow power amount that flows backward from the power generation system 2 to the distribution line 3 can be measured.

この発電システム２では、配電線３から供給される送電電力は、電力小売業者が電力卸業者から購入して需要家に販売し、逆潮流電力は、電力卸業者が太陽光発電設備６の所有者から直接又は間接的に購入する。なお本発明によれば、電力卸業者は、発電した電力を販売し、逆潮流電力を買い取る者であればよく、一般の電力会社のような組織体に限らない。また需要家から逆潮流電力を直接購入する電力卸業者と、卸電力を電力小売業者に直接販売する電力卸業者とが同一でない場合もあり得る。 In this power generation system 2, the power retailer purchases the transmitted power supplied from the distribution line 3 from the power wholesaler and sells it to consumers, and the power wholesaler owns the photovoltaic power generation equipment 6 for the reverse flow power. purchase directly or indirectly from a third party; According to the present invention, the power wholesaler is not limited to an organization such as a general electric power company as long as it sells the generated power and buys the reverse flow power. Moreover, there may be a case where the power wholesaler that directly purchases reverse flow power from the consumer and the power wholesaler that directly sells the wholesale power to the power retailer are not the same.

配電線３は多数の発電システム２と接続されている。電力卸業者は、需要家毎の引込電力の電力量及び逆潮流電力の電力量を把握し管理するために、この実施例では配電管理サーバ１３を有している。そして引込口電力量計量手段８により、所定期間毎に、例えば１か月毎に、その期間中の引込電力量並びに逆潮流電力の電力量を計量し、それらの計量値と物件番号とを含む需要家毎の配電データを配電管理サーバ１３に入力して記憶させている。また検針作業の省力化を図るために、引込口電力量計量手段８は、スマートメーターのような通信機能を有する電力量計で構成し、配電管理サーバ１３と通信回線１４で結んであり、引込電力量並びに逆潮流電力の各計量値を、通信回線１４を通じて配電管理サーバ１３に送信できるようになっている。 The distribution line 3 is connected to many power generation systems 2 . In this embodiment, the power wholesaler has a power distribution management server 13 in order to grasp and manage the amount of incoming power and the amount of reverse flow power for each consumer. Then, the service entrance power amount measuring means 8 measures the power amount of the incoming power and the power amount of the reverse power flow during each predetermined period, for example, every month, and includes the measured values and the property number. Power distribution data for each consumer is input to and stored in the power distribution management server 13 . In addition, in order to save labor in meter reading work, the entrance power metering means 8 is composed of a power meter having a communication function such as a smart meter, and is connected to the power distribution management server 13 via a communication line 14. Measured values of power consumption and reverse flow power can be transmitted to the power distribution management server 13 through the communication line 14 .

発電側電路７には、太陽光発電設備６により発電された電力の電力量である発電電力量を計量可能な発電電力計量手段１５が設けてある。発電電力計量手段１５は、この実施例では通信機能を有する電力量計からなり、発電管理サーバ１６と通信回線１７で結んである。発電管理サーバ１６は、太陽光発電設備の発電状況を管理する発電状況管理者が所有しており、発電状況管理者は、発電電力計量手段１５により、所定期間毎に、その期間中の発電電力量を計量し、その計量値と物件番号とを含む太陽光発電設備毎の発電データを発電管理サーバ１６に入力して記憶させている。 The power generation side electric line 7 is provided with a power generation measuring means 15 capable of measuring the amount of power generated by the photovoltaic power generation equipment 6 . The generated power measuring means 15 is composed of a power meter having a communication function in this embodiment, and is connected to the power generation management server 16 via a communication line 17 . The power generation management server 16 is owned by a power generation status manager who manages the power generation status of the photovoltaic power generation facility. The amount is measured, and the power generation data for each photovoltaic power generation facility, including the measured value and the property number, is input to and stored in the power generation management server 16 .

発電データ、配電データには、電力量の計量値や物件番号以外に計量日（検針日）等、管理に必要なデータが含まれている。また同一の発電システム２に関する配電データと発電データの各物件番号は、他の発電システムと混同しないように夫々同じものを付与している。 The power generation data and power distribution data include data necessary for management, such as the date of measurement (date of meter reading), in addition to the measured value of the amount of power and the property number. In addition, each property number of the power distribution data and the power generation data relating to the same power generation system 2 is assigned the same number so as not to be confused with another power generation system.

太陽光発電設備６は、投資家が所有権を有しており、電力小売業者は、所定期間毎に需要家から発電電力の使用料金及び配電線からの引込電力に基づく一般電気料金を徴収すると共に太陽光発電設備６の所有者である投資家に配当金額を支払う。この実施例の場合、電力小売業者が太陽光発電設備６についての需要家獲得、施工を行った後、発電状況管理者に売却しているので、投資家は発電状況管理者であり、太陽光発電設備６の所有者も発電状況管理者である。 Investors own ownership of the photovoltaic power generation equipment 6, and electricity retailers collect general electricity charges based on usage charges for generated power and incoming power from distribution lines from consumers at regular intervals. At the same time, the dividend amount is paid to the investor who is the owner of the photovoltaic power generation equipment 6 . In the case of this embodiment, the power retailer acquires customers for the photovoltaic power generation equipment 6, constructs it, and then sells it to the power generation status manager. The owner of the power generation equipment 6 is also the power generation status manager.

この発電システム２では、引込口電力量計量手段８、発電電力計量手段１５による計量日を毎月の何日というように決めてある。両者による計量日は同じでなくてもよい。電気料金管理装置１により電気料金の計算日は、両者による計量日の数日後の所定日に設定してある。更に、その計算日の数日後に需要家に電気料金を請求し、電力小売業者が需要家から電気料金を徴収した後、翌月に投資家へ報告し、数日後に売電料金が投資家に支払われる。 In this power generation system 2, the date of measurement by the inlet power amount measuring means 8 and the power generation measuring means 15 is determined as the day of each month. The date of weighing by both does not have to be the same. The calculation date of the electricity bill is set by the electricity bill management device 1 to a predetermined date several days after the date of measurement by both parties. Furthermore, the electricity bill is billed to the consumer several days after the calculation date, and after the electricity retailer collects the electricity bill from the consumer, it is reported to the investor in the following month, and a few days later the electricity sales fee is sent to the investor. be paid.

本発明が適用される発電システム２では、当該発電システム２を設置する前に、電力卸業者への逆潮流電力の販売料金である売電料金と配当金額とからなる投資家の全収入が目標額に達したとき、太陽光発電設備６を需要家に譲渡することを前提として、電力小売業者、需要家及び投資家間で契約が交わされる。なお本発明の電気料金管理装置は、電力小売業者の代わりに電力卸業者が需要家に電力を販売する発電システムにも適用することができる。
（電気料金管理装置） In the power generation system 2 to which the present invention is applied, before the power generation system 2 is installed, the target is the total income of the investor consisting of the electricity sales fee, which is the sales fee of the reverse flow electricity to the electricity wholesaler, and the dividend amount. When the amount is reached, a contract is made among the electricity retailer, the consumer and the investor on the premise that the photovoltaic power generation facility 6 will be transferred to the consumer. The electricity rate management device of the present invention can also be applied to a power generation system in which a power wholesaler sells power to consumers instead of a power retailer.
(Electricity rate management device)

図２に示すように、電気料金管理装置１は、中央演算処理装置１８と記憶装置１９と入力装置２０と出力装置２１とからなるコンピュータを用いて構成されている。コンピュータは通信制御装置２２を備えており、通信制御装置２２は、配電管理サーバ１３、発電管理サーバ１６との間で通信回線２３、２４を通じてデータを適時送受信することができるようになっている。記憶装置１９には、電気料金管理用のプログラムが記憶されており、そのプログラムと、記憶装置１９と中央演算処理装置１８とにより、コンピュータ２１内に電気料金管理装置１の処理機能を果たす各部が構成されている。 As shown in FIG. 2, the electricity rate management device 1 is configured using a computer comprising a central processing unit 18, a storage device 19, an input device 20, and an output device 21. FIG. The computer has a communication control device 22, and the communication control device 22 can timely transmit and receive data to and from the power distribution management server 13 and the power generation management server 16 through communication lines 23 and 24. FIG. The storage device 19 stores a program for electricity rate management, and the program, the storage device 19, and the central processing unit 18 allow each part that performs the processing function of the electricity rate management device 1 to be implemented in the computer 21. It is configured.

記憶装置１９には、例えばハードディスクのような、電源が落ちても記憶を保持することができる補助記憶装置２５が含まれており、この補助記憶装置２５は電力料金管理データを記憶する記憶部を有している。 The storage device 19 includes an auxiliary storage device 25, such as a hard disk, which can retain data even when the power is turned off. have.

電力料金管理データは、発電システム２毎に付与した物件番号、需要家名、投資家名、物件番号毎の引込口電力量計量手段８による計量日、その計量日毎の引込電力量並びに逆潮流電力量、発電電力計量手段１５による計量日、その計量日毎の発電電力量、所定期間毎の電気料金の計算日、その計算日毎の発電電力消費料金、投資家への配当金額、引込電気料金、売電料金、徴収料金、収入積算金額、譲渡可否の検出情報等を含んでいる。収入積算金額は、計量日毎の売電料金と配当金額との和を積算したものであり、太陽光発電設備６に関する投資家の収入を積算したものである。 The power rate management data includes the property number assigned to each power generation system 2, the name of the customer, the name of the investor, the date of measurement by the service entrance power amount measuring means 8 for each property number, the amount of power drawn in for each day of measurement, and the reverse flow power. amount, date of measurement by the generated power measuring means 15, amount of generated power for each measurement day, calculation date of the electricity charge for each predetermined period, generated power consumption charge for each calculation day, dividend amount to investors, incoming electricity charge, sales It includes information such as electricity charges, collection charges, accumulated income amounts, and transferability detection information. The integrated income amount is obtained by integrating the sum of the electricity sales fee and the dividend amount for each measurement day, and is obtained by integrating the income of the investor regarding the photovoltaic power generation equipment 6 .

補助記憶装置２５の電力料金管理データの記憶部には、この実施例では配電管理サーバからの配電データ、発電管理サーバからの発電データに基づき、引込電力量並びに逆潮流電力量、発電電力量等のデータが計量日毎に入力されるようになっている。なお、電力料金管理データの補助記憶装置２５への入力は、配電データや発電データを記憶した記憶媒体を介して入力装置２０の手動操作等により行うようにしてもよい。また補助記憶装置２５に記憶している電力料金管理データは、入力装置２０を操作することにより、出力装置２１から、表示画面における表示やプリンタからの印刷物として随時出力することができるようになっている。 In this embodiment, the electric power rate management data storage unit of the auxiliary storage device 25 stores pull-in electric power amount, reverse flow electric power amount, generated electric power amount, etc., based on the electric power distribution data from the electric power distribution management server and the electric power generation data from the electric power generation management server. data is entered for each weighing day. The power rate management data may be input to the auxiliary storage device 25 by manually operating the input device 20 via a storage medium storing the power distribution data and power generation data. By operating the input device 20, the power rate management data stored in the auxiliary storage device 25 can be output from the output device 21 at any time as display on a display screen or printed matter from a printer. there is

電力料金管理データのうちの計算日毎の発電電力消費料金、投資家への配当金額、引込電気料金、売電料金、徴収料金、収入積算金額、譲渡可否の検出情報等のデータについては、電気料金管理装置１の処理結果に基づき自動的に補助記憶装置２５の電力料金管理データの記憶部に書き込まれるようになっている。 Of the electricity rate management data, data such as generated power consumption rate for each calculation day, dividend amount to investors, lead-in electricity charge, electricity sales charge, collected charge, accumulated income amount, transferability detection information, etc. Based on the processing result of the management device 1, it is automatically written into the power rate management data storage section of the auxiliary storage device 25. FIG.

図３に示すように、電気料金管理装置１は、目標額設定部３１、電力単価設定部３２、計量値入力部３３、収入積算金額記憶部３４、発電電力の消費分算出部３５、発電電力消費料金算出部３６、配当金額算出部３７、売電料金算出部３７、引込電気料金算出部３８、徴収料金算出部４０、収入積算金額算出部４１、判定部４２及び出力制御部４３を備えている。 As shown in FIG. 3, the electricity rate management device 1 includes a target amount setting unit 31, an electricity unit price setting unit 32, a measured value input unit 33, an integrated revenue amount storage unit 34, a generated power consumption calculation unit 35, a generated power Consumption charge calculation unit 36, dividend amount calculation unit 37, electricity sales charge calculation unit 37, lead-in electricity charge calculation unit 38, collected charge calculation unit 40, integrated revenue amount calculation unit 41, determination unit 42, and output control unit 43 there is

目標額設定部３１は、投資家の全収入つまり収入積算金額の目標額を記憶する。この目標額は、売電料金と配当金額とからなる投資家の全収入が目標額に達したとき、太陽光発電設備６を需要家に譲渡することを前提に設定される。また、この目標額は、補助記憶装置２５に記憶されており、処理の開始により目標額設定部３１に入力されるようになっている。また入力装置２０を操作することにより目標額を変更することができるようになっている。 The target amount setting unit 31 stores the target amount of the investor's total income, that is, the integrated income amount. This target amount is set on the premise that the photovoltaic power generation equipment 6 will be transferred to the consumer when the investor's total income consisting of the electricity sales fee and the dividend amount reaches the target amount. Also, this target amount is stored in the auxiliary storage device 25, and is input to the target amount setting unit 31 when the process is started. Also, by operating the input device 20, the target amount can be changed.

電力単価設定部３２は、単位電力量あたりの電力量の単価を記憶する。この実施例では、単位逆潮流電力量当たりの販売料金である逆潮流電力の単価、単位引込電力量当たりの電気料金である引込電力の単価、単位発電電力量当たりの電気料金である発電電力の販売単価、単位発電電力量当たりの配当金額である発電電力の配当単価を個々の設定部３２ａ、３２ｂ、３２ｃ、３２ｄに記憶する。各単価は補助記憶装置２５に記憶されており、処理の開始により補助記憶装置２５から入力されるようになっている。また各単価は入力装置２０を操作することにより設定値を変更することができるようになっている。 The power unit price setting unit 32 stores the unit price of the power amount per unit power amount. In this embodiment, the unit price of reverse flow power, which is the sales charge per unit of reverse flow power, the unit price of drawn power, which is the electricity charge per unit of drawn power, and the generated power, which is the electricity charge per unit of generated power A sales unit price and a dividend unit price for generated power, which is a dividend amount per unit generated power amount, are stored in the individual setting units 32a, 32b, 32c, and 32d. Each unit price is stored in the auxiliary storage device 25, and is input from the auxiliary storage device 25 at the start of processing. Also, each unit price can be changed by operating the input device 20 .

計量値入力部３３は、発電電力量の入力部３３ａ、逆潮流電力の入力部３３ｂ、引込電力量の入力部３３ｃを有しており、発電電力計量手段１５による所定期間毎の発電電力量の計量値、引込口電力量計量手段８による所定期間毎の引込電力量並びに逆潮流電力量の各計量値を記憶する。これらの計量値は、この実施例では補助記憶装置２５の電気料金管理データのうちの物件番号が同一かつ計量日が最も新しいデータから呼び出されるようになっている。しかし計量値入力部３３へ計量値の入力は、必要に応じて、例えば記憶媒体に記録されたデータを介して入力装置２０を操作することで行うようにしてもよい。 The measured value input unit 33 has a generated power amount input unit 33a, a reverse flow power input unit 33b, and a pull-in power amount input unit 33c. Measured values, pull-in electric energy and reverse flow electric energy for each predetermined period by the lead-in electric energy measuring means 8 are stored. In this embodiment, these measured values are called from the electricity charge management data in the auxiliary storage device 25 starting with the data having the same property number and the latest measured date. However, the weighing value may be input to the weighing value input unit 33 by operating the input device 20 via data recorded in a storage medium, for example, as required.

収入積算金額記憶部３４は、補助記憶装置２５に設けてあり、引込電気料金算出部３８で算出された前回の収入積算金額を記憶する。前回の収入積算金額は、補助記憶装置２５に記憶されている電気料金管理データのうち、物件番号が同一かつ検量日が前回の検量日に一致するデータに含まれている収入積算金額である。 The integrated revenue amount storage unit 34 is provided in the auxiliary storage device 25 and stores the previous integrated revenue amount calculated by the electricity bill calculation unit 38 . The previous accumulated income amount is an accumulated income amount included in the data having the same property number and the same date as the previous measurement date among the electricity rate management data stored in the auxiliary storage device 25.例文帳に追加

発電電力の消費分算出部３５は、計量値入力部３３の発電電力量の記憶値と逆潮流電力量の記憶値とに基づき、発電電力の電力量うちの分電盤４を通じた消費分を算出して記憶する。この消費分は、発電電力量から逆潮流電力量を減算することにより算出される。 The generated power consumption calculation unit 35 calculates the amount of generated power consumed through the distribution board 4 based on the stored value of the generated power amount of the measurement value input unit 33 and the stored value of the reverse flow power amount. Calculate and store. This consumed amount is calculated by subtracting the reverse flow power amount from the generated power amount.

発電電力消費料金算出部３６は、発電電力の消費分算出部３５の消費分の記憶値に基づき発電電力消費料金を算出して記憶する。この発電電力消費料金は、発電電力の販売単価設定部３２ｃに記憶されている発電電力の販売単価と前記消費分とを乗算することにより算出される。 The generated power consumption charge calculation unit 36 calculates and stores the generated power consumption charge based on the stored value of the consumed amount of the generated power consumption calculation unit 35 . The generated power consumption rate is calculated by multiplying the generated power sales unit price stored in the generated power sales unit price setting unit 32c by the consumption amount.

配当金額算出部３７は、消費分算出部３５の消費分の記憶値に基づき配当金額を算出して記憶する。この配当金額は、電力単価設定部３２の設定部３２ｄに記憶されている発電電力の配当単価と前記消費分とを乗算することにより算出される。 The payout amount calculation unit 37 calculates and stores the payout amount based on the consumption value stored in the consumption amount calculation unit 35 . This payout amount is calculated by multiplying the payout unit price of generated power stored in the setting section 32d of the power unit price setting section 32 by the consumption amount.

引込電気料金算出部３８は、計量値入力部３３の入力部３３ｃの引込電力量の記憶値に基づき引込電気料金を算出して記憶する。この引込料金電気は、電力単価設定部３２の設定部３２ｂに記憶されている引込電力の単価と引込電力量とを乗算することにより算出される。 The service charge calculation unit 38 calculates and stores the service charge based on the stored value of the service charge of the input unit 33 c of the measured value input unit 33 . This charge for electricity is calculated by multiplying the unit price of electric power stored in the setting section 32b of the electric power unit price setting section 32 by the amount of electric power to be drawn.

売電料金算出部３９は、計量値入力部３３の入力部３３ｂの逆潮流電力量の記憶値に基づき売電料金を算出して記憶する。この売電料金は、電力単価設定部３２の設定部３２ａに記憶されている逆潮流電力の単価と逆潮流電力量とを乗算することにより算出される。 The power selling charge calculation unit 39 calculates and stores the power selling charge based on the stored value of the reverse power flow power amount of the input unit 33b of the measured value input unit 33 . This power selling charge is calculated by multiplying the unit price of reverse flow power stored in the setting unit 32 a of the power unit price setting unit 32 by the reverse flow power amount.

徴収料金算出部４０は、発電電力消費料金算出部３６の発電電力料金の記憶値と、引込電気料金算出部３８の引込電気料金の記憶値とに基づき、需要家から徴収すべき徴収料金を算出して記憶する。この徴収料金は、発電電力料金に引込電気料金を加算することにより算出される。 The collection charge calculation unit 40 calculates the collection charge to be collected from the consumer based on the stored value of the generated power charge of the generated power consumption charge calculation unit 36 and the stored value of the incoming electricity charge of the incoming electricity charge calculation unit 38. and memorize it. This collected fee is calculated by adding the incoming electricity fee to the generated electricity fee.

収入積算金額算出部４１は、売電料金算出部３９の逆潮流電力の売電料金の記憶値と、配当金額算出部３７の配当金額の記憶値と、収入積算金額記憶部３４の前回の収入積算金額の記憶値とに基づき、投資家の収入積算金額を算出して記憶する。収入積算金額は、配当金額と売電料金とを加算して所定期間毎の収入金額を算出し、この所定期間毎の収入金額を前回の収入積算金額に加算することにより算出される。 The integrated income amount calculation unit 41 stores the stored value of the electricity sales fee for the reverse flow power in the electricity sales fee calculation unit 39, the stored value of the dividend amount in the dividend amount calculation unit 37, and the previous income in the integrated income amount storage unit 34. Based on the stored value of the integrated amount of money, the integrated amount of income of the investor is calculated and stored. The integrated income amount is calculated by adding the dividend amount and the electricity sales charge to calculate the amount of income for each predetermined period, and adding the amount of income for each predetermined period to the previous integrated amount of income.

判定部４２は、目標額設定部３１に記憶された目標額と収入積算金額算出部４１の収入積算金額の記憶値とを比較して収入積算金額が目標額以上である場合には所有権移転可能との判断をして判断結果を記憶する。 The determination unit 42 compares the target amount stored in the target amount setting unit 31 with the stored value of the integrated revenue amount in the integrated revenue amount calculation unit 41, and if the integrated revenue amount is equal to or greater than the target amount, the ownership is transferred. It judges that it is possible and stores the judgment result.

出力制御部４３は、判定部４２の判断結果の記憶値に基づき、判断結果が所有権移転可能である場合には、出力装置２１に所有権移転可能との検出情報の出力を指令する。この検出情報は、この実施例の場合、出力装置２１のディスプレイ装置に、例えば「所有権移転可能」或いは「目標額達成」等の表示がされるようになっている。 Based on the stored value of the determination result of the determination unit 42, the output control unit 43 instructs the output device 21 to output detection information indicating that the ownership can be transferred when the determination result indicates that the ownership can be transferred. In the case of this embodiment, this detection information is displayed on the display device of the output device 21, for example, "ownership transfer possible" or "target amount achieved".

また出力制御部４３は、算出されて記憶されている発電電力消費料金、配当金額、引込電気料金、売電料金、徴収料金、収入積算金額、所有権移転可否の検出情報を補助記憶装置２５内の各々の記憶部に書き込むことができるようになっている。
（電気料金算出処理の動作） In addition, the output control unit 43 stores the calculated and stored generated power consumption fee, dividend amount, incoming electricity fee, electricity sales fee, collection fee, integrated income amount, and detection information on propriety transfer propriety in the auxiliary storage device 25. can be written to each storage unit.
(Operation of electricity bill calculation processing)

予め、入力装置２０を操作して電気料金管理装置１を起動し、最初に目標額設定部３１に収入積算金額の目標額を設定しておく。また電力単価設定部３２に各電力単価を設定しておく。その後は、必要なときに発電電力量、逆潮流電力量、引込電力量等の電力料金管理データを入力し、電気料金の算出処理をスタートさせると、補助記憶装置２５に記憶している電気料金管理データから所要のデータが選択され、そのデータが計量値入力部３３に記憶される。 In advance, the input device 20 is operated to start the electricity rate management device 1, and first, the target amount of the integrated income amount is set in the target amount setting section 31. - 特許庁Each power unit price is set in the power unit price setting unit 32 . After that, when necessary, input power rate management data such as power generation amount, reverse power flow power amount, lead-in power amount, etc., and start the power rate calculation process. Required data is selected from the management data, and the selected data is stored in the measured value input section 33 .

次に、発電電力の消費分算出部３５、配当金額算出部３７が、計量値入力部３３に記憶された発電電力量並びに逆潮流電力量に基づき配当料金を算出すると共に、売電料金算出部３９が作動して売電料金を算出し、その算出した配当料金と売電料金と、収入積算金額記憶部３４の記憶値とに基づき収入積算金額算出部４１が収入積算金額を算出する。それと同時に、引込電気料金算出部３８が、計量値入力部３３に記憶された引込電力量に基づき引込電気料金を算出すると共に、発電電力消費料金算出部３６が、計量値入力部３３に記憶された発電電力量並びに逆潮流電力量に基づき発電電力消費料金を算出し、その算出した引込電気料金と発電電力消費料金とに基づき徴収料金算出部４０は徴収料金を算出する。 Next, the generated power consumption calculation unit 35 and the dividend amount calculation unit 37 calculate the distribution fee based on the generated power amount and the reverse flow power amount stored in the measured value input unit 33, and the power sales fee calculation unit 39 operates to calculate the power selling charge, and based on the calculated distribution charge, power selling charge, and the stored value of the accumulated revenue amount storage section 34, the accumulated revenue calculating section 41 calculates the accumulated revenue amount. At the same time, the lead-in electricity charge calculator 38 calculates the lead-in electricity charge based on the amount of lead-in power stored in the measured value input unit 33, and the generated power consumption charge calculator 36 calculates the amount of electricity that is stored in the measured value input unit 33. The generated power consumption rate is calculated based on the generated power amount and the reverse flow power amount, and the collected charge calculation unit 40 calculates the collected charge based on the calculated lead-in electricity rate and generated power consumption rate.

次に、判定部４２は、目標額設定部３１に記憶されている目標額と、算出された収入積算金額とを比較して収入積算金額が目標額に達しているか否かを判断する。 Next, the determination unit 42 compares the target amount stored in the target amount setting unit 31 and the calculated integrated revenue amount to determine whether or not the integrated revenue amount has reached the target amount.

次に出力制御部４３は、判定部４２の判断結果に基づき、その判断結果が所有権移転可能である場合には、出力装置２１に所有権移転可能との検出情報の出力を指令し、出力装置２１が所有権移転可能の検出情報を出力する。 Next, the output control unit 43 instructs the output device 21 to output detection information indicating that the ownership can be transferred based on the determination result of the determination unit 42, and outputs the detection information indicating that the ownership can be transferred. The device 21 outputs detection information indicating that ownership can be transferred.

また出力制御部４３は、算出されて記憶されている発電電力消費料金、引込電気料金、徴収料金、売電料金、配当金額、収入積算金額、算出日を補助記憶装置２５へ出力し、補助記憶装置２５に記憶されている電気料金管理データのうちの物件番号が同一で計量日が最も新しいものを選定して、その選定された電気料金管理データ内の、出力された発電電力消費料金、引込電気料金、徴収料金、売電料金、配当金額、収入積算金額、算出日等に対応する補助記憶装置２５の記憶部に書き込み、これにより電気料金の算出処理を終了する。 In addition, the output control unit 43 outputs the calculated and stored generated power consumption fee, incoming electricity fee, collection fee, electricity sales fee, dividend amount, integrated income amount, and calculation date to the auxiliary storage device 25, and outputs the calculation date to the auxiliary storage device 25. Among the electricity rate management data stored in the device 25, the item having the same property number and the latest metering date is selected, and the output generated power consumption rate and the withdrawal rate are included in the selected electricity rate management data. Electricity charges, collected charges, power selling charges, dividend amounts, accumulated income amounts, calculation dates, etc. are written in the corresponding storage units of the auxiliary storage device 25, and the calculation processing of the electricity charges is thereby terminated.

電気料金管理装置１から所有権移転可能の検出情報が出力されると、電力小売業者は、需要家、投資家、電力卸業者に、太陽光発電設備６の所有権が投資家から需要家に移転したことを通知する。そして電力事業者は売電料金の支払い対象を需要家に変更する。
（電気料金管理装置の別の実施例） When the electricity rate management device 1 outputs the detection information indicating that the ownership can be transferred, the electricity retailer informs the consumer, the investor, and the electricity wholesaler of the ownership of the photovoltaic power generation facility 6 from the investor to the consumer. Notify that you have moved. Then, the electric power company changes the payment target of the electric power sales charge to the consumer.
(Another embodiment of electricity rate management device)

図４に示す電気料金管理装置は、電力事業者の配電管理サーバから送られてくる配電データに、所定期間毎の引込電力量に加えて引込電気料金、所定期間毎の逆潮流電力量に加えて売電料金が含まれている場合に適用されるものである。この電気料金管理装置は、図３に示す電気料金管理装置における引込電力の単価の設定部３２ｂ、引込電力量の入力部３３ｃ、及び引込電気料金算出部３８を取り除き、代わりに図４に示すように引込電気料金を入力して記憶する引込電気料金入力部４４を備えると共に、図３に示す電気料金管理装置における逆潮流電力の単価の設定部３２ａ、逆潮流電力量の入力部３３ｂ、及び売電料金算出部３９を取り除き、代わりに図４に示すように売電料金を入力して記憶する売電料金入力部４５を備えている。つまり、この電気料金管理装置は、計量した引込電力量を入力し、その引込電力量に基づき引込電気料金を算出する代わりに、既に算出した引込電気料金を入力し、その入力した引込電気料金と発電電力消費料金を徴収料金の算出に用い、また計量した逆潮流電力量を入力し、その逆潮流電力量に基づき売電電気料金を算出する代わりに、既に算出した売電電気料金を入力し、その入力した売電料金を収入積算金額の算出に用いる。 The electricity rate management device shown in FIG. 4 adds to the power distribution data sent from the power distribution management server of the electric power company, the incoming power amount in addition to the incoming power amount for each predetermined period, the incoming power rate, the reverse power flow amount This is applied when the electricity sales charge is included in the This electricity rate management device removes the unit price setting unit 32b of the power-in, the input unit 33c for the amount of power-in, and the power-in rate calculation unit 38 in the electricity rate management device shown in FIG. 3, a reverse flow power unit price setting unit 32a, a reverse flow power amount input unit 33b, and a sales The electric power charge calculation unit 39 is removed, and instead, as shown in FIG. 4, an electric power sales charge input unit 45 for inputting and storing the electric power sales charge is provided. That is, instead of inputting the measured lead-in power amount and calculating the lead-in power rate based on the lead-in power amount, the electricity rate management device inputs the already calculated lead-in power rate, Instead of using the generated power consumption rate to calculate the collection fee, inputting the measured reverse flow power amount, and calculating the power selling power rate based on the reverse power flow power amount, enter the already calculated power selling power rate. , the input electricity sales charge is used for calculating the integrated revenue amount.

本発明の発電システムの電気料金管理装置は、一般住宅等を所有する需要家が、太陽光発電等の太陽光発電設備を、設備購入による経済負担を負うことなく自宅の屋根等に設置して利用し、かつ太陽光発電設備に関する電力事業者の管理業務の負担を軽減する用途に適用できる。 The electricity rate management device for a power generation system of the present invention allows a consumer who owns a general house or the like to install a photovoltaic power generation facility such as a photovoltaic power generation facility on the roof of their home or the like without bearing the financial burden of purchasing the facility. It can be used for applications that reduce the burden of management work on power companies regarding photovoltaic power generation equipment.

１…電気力料金管理装置
２…発電システム
３…配電線
４…分電盤
５…引込電路
６…太陽光発電設備
７…発電側電路
８…引込口電力量計量手段
９…太陽光発電パネル
１０…接続箱
１１…パワーコンディショナー
１２…開閉器
１３…配電管理サーバ
１４…通信回線
１５…発電電力計量手段
１６…発電管理サーバ
１７…通信回線
１８…中央演算処理装置
１９…記憶装置
２０…入力装置
２１…出力装置
２２…通信制御装置
２３…通信回線
２４…通信回線
２５…補助記憶部
３１…目標額設定部
３２…電力単価設定部
３３…計量値入力部
３４…収入積算金額記憶部
３５…発電電力の消費分算出部
３６…発電電力消費料金算出部
３７…配当金額算出部
３８…引込電気料金算出部
３９…売電料金算出部
４０…徴収料金算出部
４１…収入積算金額算出部
４２…判定部
４３…出力制御部
４４…引込電気料金入力部
４５…売電料金入力部 DESCRIPTION OF SYMBOLS 1... Electric power rate management apparatus 2... Power generation system 3... Distribution line 4... Distribution board 5... Service line 6... Photovoltaic power generation equipment 7... Power generation side line 8... Service entrance electric amount measuring means 9... Photovoltaic power generation panel 10 ... connection box 11 ... power conditioner 12 ... switch 13 ... power distribution management server 14 ... communication line 15 ... generated power measuring means 16 ... power generation management server 17 ... communication line 18 ... central processing unit 19 ... storage device 20 ... input device 21 ... output device 22 ... communication control device 23 ... communication line 24 ... communication line 25 ... auxiliary storage section 31 ... target amount setting section 32 ... electric power unit price setting section 33 ... measured value input section 34 ... integrated income amount storage section 35 ... generated power Consumption calculation unit 36 Generated power consumption charge calculation unit 37 Dividend amount calculation unit 38 Lead-in electricity charge calculation unit 39 Electricity sales charge calculation unit 40 Collected charge calculation unit 41 Accumulated revenue calculation unit 42 Judgment unit 43 --- Output control unit 44 --- Electricity charge input unit 45 --- Power selling charge input unit

Claims

A lead-in circuit that connects the distribution line of transmitted power and a distribution board installed on the site owned by the customer;
A photovoltaic power generation facility using solar energy installed on the premises;
a power generation side electric circuit that connects the photovoltaic power generation equipment and the distribution board;
The incoming power amount, which is the amount of incoming power supplied to the distribution board through the incoming circuit, and the power generated by the photovoltaic power generation equipment are generated power, and the surplus of the generated power is reverse flow power. a service inlet power amount measuring means provided in the service line, capable of measuring the amount of reverse flow power that is the amount of the reverse flow power supplied to the distribution line through the service line,
The incoming power is purchased by a power retailer from a power wholesaler and sold to the consumer,
The reverse flow power is a photovoltaic power generation system that the power wholesaler purchases directly or indirectly from the owner of the photovoltaic power generation facility,
the solar power plant is owned by the investor;
Every predetermined period, the electricity retailer collects usage fees for the generated electricity from the consumers, and pays distribution fees to owners of the solar power generation equipment,
When the integrated amount of the income of the investor for each predetermined period, which is composed of the reverse flow power sales fee and the dividend fee for each predetermined period, reaches a target amount, the ownership of the solar power generation facility is transferred to the investor. a target amount setting unit that stores the set value of the target amount set on the premise that the customer will transfer from
The generated power amount, which is the power amount of the generated power measured for each predetermined period by the generated power measuring means provided in the power generation side circuit, and the reverse power flow measured for each predetermined period by the service inlet power amount measuring means a measured value input unit that stores each input value of the amount of power and the amount of drawn power that is measured for each predetermined period;
The unit price of the incoming power, the unit price of the reverse flow power, the sales unit price of the generated power, and the dividend unit price of the generated power can be set to be changeable, respectively, and the unit price of the incoming power and the unit price of the reverse flow power can be set. , a power unit price setting unit that stores each set value of the sales unit price of the generated power and the dividend unit price of the generated power;
a generated power consumption calculation unit that calculates and stores the amount of generated power consumed through the distribution board based on the amount of generated power and the amount of reverse power flow stored in the measured value input unit;
Calculation of power selling charge for calculating and storing a selling charge for reverse flow power by multiplying the unit price of reverse flow power stored in the power unit price setting unit and the amount of reverse flow power stored in the measured value input unit Department and
a lead-in electricity rate calculation unit that calculates and stores a lead-in electricity charge based on the lead-in power amount stored in the measured value input unit and the unit price of the lead-in power stored in the power unit price setting unit;
By multiplying the amount of generated power consumed through the distribution board out of the amount of generated power stored in the generated power consumption calculation unit and the unit sales price of generated power stored in the power unit price setting unit a generated power consumption rate calculation unit that calculates and stores a generated power consumption rate for consumption of the generated power amount;
a collected charge calculation unit that calculates a collected charge by adding the stored value of the generated power consumption charge to the stored value of the incoming electricity charge ;
a dividend amount calculation unit that calculates and stores a dividend amount by multiplying the generated power dividend unit price stored in the power unit price setting unit by the consumption amount stored in the generated power consumption amount calculation unit;
an integrated income amount storage unit that stores an integrated income amount obtained by accumulating the income of the investor for each predetermined period up to the previous calculation date;
Based on the stored value of the dividend fee in the dividend amount calculation unit, the stored value of the electricity sales fee in the electricity sale fee calculation unit, and the stored value of the integrated income amount in the integrated income amount storage unit, the accumulated income up to this time is calculated. an integrated income amount calculation unit that calculates and stores an amount;
Comparing the stored value of the integrated revenue amount of the integrated revenue amount calculating section with the stored value of the target amount of the target amount setting section, and determining that the ownership transfer is possible when the integrated revenue amount is equal to or greater than the target amount. , a determination unit that stores the determination result;
Integrated revenue amount up to this time stored in the integrated revenue amount calculation unit, generated power consumption fee stored in the generated power consumption fee calculation unit, incoming electricity fee stored in the incoming electricity fee calculation unit, and collection The collected fee stored by the fee calculation unit and the dividend amount stored by the dividend amount calculation unit are output to the integrated income amount storage unit, and the determination result stored by the determination unit indicates that the ownership can be transferred. an output control unit for commanding an output device to output detection information indicating that ownership can be transferred when the result of
A solar power generation system comprising:

A lead-in circuit that connects the distribution line of transmitted power and a distribution board installed on the site owned by the customer;
A photovoltaic power generation facility using solar energy installed on the premises;
a power generation side electric circuit that connects the photovoltaic power generation equipment and the distribution board;
The incoming power amount, which is the amount of incoming power supplied to the distribution board through the incoming circuit, and the power generated by the photovoltaic power generation equipment are generated power, and the surplus of the generated power is reverse flow power. a service inlet power amount measuring means provided in the service line, capable of measuring the amount of reverse flow power that is the amount of the reverse flow power supplied to the distribution line through the service line,
The incoming power is purchased by a power retailer from a power wholesaler and sold to the consumer,
The reverse flow power is a photovoltaic power generation system that the power wholesaler purchases directly or indirectly from the owner of the photovoltaic power generation facility,
the solar power plant is owned by the investor;
Every predetermined period, the electricity retailer collects usage fees for the generated electricity from the consumers, and pays distribution fees to owners of the solar power generation equipment,
When the integrated amount of the income of the investor for each predetermined period, which is composed of the reverse flow power sales fee and the dividend fee for each predetermined period, reaches a target amount, the ownership of the solar power generation facility is transferred to the investor. a target amount setting unit that stores the set value of the target amount set on the premise that the customer will transfer from
The generated power amount, which is the power amount of the generated power measured for each predetermined period by the generated power measuring means provided in the power generation side circuit, and the reverse power flow measured for each predetermined period by the service inlet power amount measuring means a measurement value input unit that stores each input value of electric energy;
an electric power unit price setting unit that can changeably set the sales unit price of the generated power and the dividend unit price of the generated power, and that stores each set value of the sales unit price of the generated power and the dividend unit price of the generated power; ,
a generated power consumption calculation unit that calculates and stores the amount of generated power consumed through the distribution board based on the amount of generated power and the amount of reverse power flow stored in the measured value input unit;
a power selling charge input unit for inputting and storing a selling charge for the reverse power flow calculated in advance based on the reverse power flow power amount measured by the service inlet power amount measuring means and the unit price of the reverse power flow power;
a lead-in electricity rate input unit for inputting and storing a lead-in electricity rate calculated in advance based on the lead-in power amount measured by the lead-in power amount measuring means and the unit price of the lead-in power ;
By multiplying the amount of generated power consumed through the distribution board out of the amount of generated power stored in the generated power consumption calculation unit and the unit sales price of generated power stored in the power unit price setting unit a generated power consumption rate calculation unit that calculates and stores a generated power consumption rate for consumption of the generated power amount;
a collected charge calculation unit that calculates a collected charge by adding the stored value of the generated power consumption charge to the stored value of the incoming electricity charge ;
a dividend amount calculation unit that calculates and stores a dividend amount by multiplying the generated power dividend unit price stored in the power unit price setting unit by the consumption amount stored in the generated power consumption amount calculation unit;
an integrated income amount storage unit that stores an integrated income amount obtained by accumulating the income of the investor for each predetermined period up to the previous calculation date;
Based on the stored value of the dividend fee in the dividend amount calculation unit, the stored value of the electricity sales fee in the electricity sale fee input unit, and the stored value of the integrated income amount in the integrated income amount storage unit, the accumulated income up to this time is calculated. an integrated income amount calculation unit that calculates and stores an amount;
Comparing the stored value of the integrated revenue amount of the integrated revenue amount calculating section with the stored value of the target amount of the target amount setting section, and determining that the ownership transfer is possible when the integrated revenue amount is equal to or greater than the target amount. , a determination unit that stores the determination result;
Integrated revenue amount up to this time stored in the integrated revenue amount calculation unit, generated power consumption fee stored in the generated power consumption fee calculation unit, incoming electricity fee stored in the incoming electricity fee input unit, and collection The collected fee stored by the fee calculation unit and the dividend amount stored by the dividend amount calculation unit are output to the integrated income amount storage unit, and the determination result stored by the determination unit indicates that the ownership can be transferred. an output control unit for commanding an output device to output detection information indicating that ownership can be transferred when the result of
A photovoltaic power generation system comprising:

In the solar power generation system according to claim 1 or claim 2,
A photovoltaic power generation system in which the power wholesaler sells power to the consumer instead of the power retailer.