JP2005322114A - Trade support system for photovoltaic power generating system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a trade support system for used photovoltaic power generating systems that allows users to easily trade used photovoltaic power generating systems without difficulty. <P>SOLUTION: A person B who desires to buy a used photovoltaic power generating system registers in a server 4 of the trade support system 1 the installation requirements for a location where a used photovoltaic power generating system is to be installed. The trade support system 1 assesses the performance of used photovoltaic power generating systems registered under the requirements and presents to the person B the used photovoltaic power generating system 20 whose performance is as good as the person B wishes, among the used photovoltaic power generating systems that prospective sellers A or the like desire to sell. In this way the person B can easily obtain product information about the used photovoltaic power generating system 20 whose performance is properly assessed based on the requirements about where it is to be installed, and use this information to decide whether to purchase the system. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a system for supporting the buying and selling of a photovoltaic power generation system. More specifically, the present invention relates to a system that supports buying and selling between a person who wants to sell a solar cell system and a person who wants to purchase a solar cell system in a virtual store provided on a network including the Internet.

  In recent years, the demand for clean energy such as fuel cells has increased along with an increase in awareness of issues that must be considered on a global scale, such as responses to global warming and suppression of carbon dioxide emissions. Among them, solar energy is attracting attention as a next-generation energy because it has few resource constraints and environmental burdens, and measures to promote the spread of solar power generation systems are being promoted nationwide. However, it is difficult to say that the penetration rate of photovoltaic power generation systems is high. One of the reasons is that the photovoltaic power generation system is an expensive product. Even if there is a user who wants to install a solar power generation system, it is difficult to purchase because of the high price.

  Buying and selling of used products is done for all kinds of products such as used cars, clothing and books. Further, such mediation of buying and selling is frequently performed not only in an actual store but also on a network such as the Internet. As an example, there is online sales of used cars displayed on a terminal as an example of a screen in FIG. Due to the abundance of second-hand products handled and the attractiveness of being able to do it anywhere with communication equipment, the second-hand sales market using the network is rapidly expanding.

  Despite this situation, second-hand sales of solar power generation systems are not carried out. The reason is considered to be the peculiarity of the photovoltaic power generation system. First of all, it cannot be evaluated by the user as to the performance and commercial value of the solar power generation system because it is not as general as a car or clothing. Along with the above problem, it can be mentioned that the performance of the photovoltaic power generation system such as the amount of power generation varies greatly depending on the individual installation conditions such as the location and direction of use and the inclination angle of the system. And there is a troublesome exchange with the installation company in the removal and installation of the photovoltaic power generation system after the transaction between the seller and the buyer.

  There has been proposed a system and a method that can mediate buying and selling of used machine tools with transparency in a virtual store provided on a network including the Internet (Patent Document 1). According to this system and method, when a potential seller or buyer who wishes to sell or purchase a used machine tool through system mediation seeks information from a communication terminal that can connect to the Internet, the system is subject to mediation. A database in which used machine tool information related to machining accuracy and the like is stored is searched, and the requested information is returned to the communication terminal. The provided information includes the latest market price, which was previously unclear, and the detailed current status of the used machine tool, thereby ensuring the transparency of the brokerage business. In addition, the system proposes to provide a simple assessment function that enables the applicant for sale to know the approximate market price.

  In addition, regarding photovoltaic power generation simulation calculation, characteristic values (Isc, Ico, Vop, Voc, α, β, Rs, K) in the standard state of solar cells (solar intensity 1 kw / m 2, solar cell temperature 25 ° C.) are conventionally used. Since a general method for drawing IV and PV curves at the specified solar radiation intensity and solar cell temperature has not been established, a method for accurately calculating general-purpose monthly solar power generation is well established. There is a problem of not doing. In order to solve these problems, as a general method for creating the specified solar radiation intensity and the IV at the solar cell temperature from the IV curve in the reference state, (1) basic characteristic values of 25 ° C., b ° C. and c ° C. (IL, Co, Rsh, Rs) is obtained, each basic characteristic value at the specified temperature is obtained by curve interpolation, each value is obtained by Newton's method using these values, and an IV curve is created. (2) The IV curve is created by converting each point of the IV curve in the reference state by a practical IV curve conversion formula. It has been proposed to use these two methods to calculate the power generation amount as a core part of the solar power generation amount simulation calculation program (Patent Document 2).

JP 2002-245283 A (paragraphs [0013] to [0016], FIGS. 1 to 2) JP 2002-270877 A (paragraphs [0016] to [0021], FIGS. 1 to 5)

  While there are users who wish to purchase in this way, there are also users who want to sell the solar power generation system for reasons such as moving or renovating their homes. Therefore, if there is a system that matches the needs of both, existing solar power generation systems can be used effectively, and further, the solar power generation system market will be activated. Therefore, the point of constructing a sales support system that makes it possible to match the desired product by matching the sold product that the seller wants to sell with the product information and installation conditions that the buyer wants to purchase. There is a problem to be solved.

  The object of the present invention has been made in consideration of the above-mentioned problems, and the object of the present invention is to buy and sell a solar power generation system that allows a user to easily buy and sell a solar power generation system without feeling troublesome. To provide a support system.

  In order to solve the above problems, a solar power generation system buying and selling support system according to the present invention includes a server connected to a communication network and a database buying and selling support system connected to the server. The sale product information storage means for storing the sale product information regarding the photovoltaic power generation system to be sold obtained from the seller who wishes to sell via the network, and the product information storage means which is obtained from the purchase applicant via the network. Purchase information storage means for storing purchase desired product information and installation conditions relating to the solar power generation system to be purchased in the database, simulation means for simulating the performance of the solar power generation system to be sold based on the installation conditions, and the simulation The result of the means is the purchase rare A determination unit for determining whether or not the product information conforms; and when the conformity determination unit determines that the product is suitable, the sold product information of the photovoltaic power generation system to be sold is sent to the purchase applicant via the network. For sale product information notifying means for notifying.

  According to this solar power generation system buying and selling support system, sold product information relating to the solar power generation system to be sold obtained from the seller who wishes to sell is stored in the database by the sold product information storage means. When the purchase product information and installation conditions regarding the photovoltaic power generation system to be purchased, which are obtained from the purchase applicant via the network, are stored in the database by the purchase information storage means, the simulation means provided in the buying and selling support system may Based on the installation conditions of the solar power generation system, the performance of the solar power generation system to be sold is simulated. The conformity determination means provided in the trading support system determines whether or not the result of the simulation means conforms to the desired product information for purchase. When the conformity determination means determines that the product is suitable, the sale product information notification means notifies the purchase applicant via the network of the sale product information of the solar power generation system that the applicant for sale wants to sell. Thus, it is possible to know a photovoltaic power generation system that satisfies the installation conditions and the like, and it becomes possible to specifically examine the purchase of the photovoltaic power generation system.

  In this solar power generation system trading support system, the installation conditions are the shape, size, orientation, location area, type, and installation style of the roof, wall, window, and ground on which the solar power generation system is placed, and the simulation means Simulates at least the power generation amount of the solar power generation system based on the sold product information of the solar power generation system desired to be sold and the installation conditions. The installation conditions for the solar power generation system include the shape and size of the roof on which the solar power generation system is placed, the direction of the roof, the location area, the roof mounting type, the installation style, and the like. When the solar power generation system to be sold is placed under such installation conditions, the power generation amount of the solar power generation system is predicted by the simulation means. Such a prediction result is collated with the purchase requester's product information of the purchase applicant, and it is determined whether or not the purchase determination condition is satisfied by the match determination means.

  In the used solar power generation system buying and selling support system according to the present invention, as described above, the purchase applicant registers the installation conditions of the place where the used solar power generation system is installed, and is registered under that condition. Evaluate the performance of the solar power generation system, and notify the purchase applicant of what matches the performance desired by the purchaser. As a result, those who wish to purchase a used solar power generation system can easily obtain the product information of the used solar power generation system that has been properly evaluated based on the conditions regarding the installation location via the network, and use it for purchase decisions. can do.

  Hereinafter, an embodiment of a trading support system for a used solar power generation system according to the present invention will be described with reference to the accompanying drawings. FIG. 1 is a block diagram showing the whole buying and selling support system for a used solar power generation system according to the present invention. As shown in FIG. 1, a used solar power generation system buying and selling support system (hereinafter abbreviated as “buying and buying support system”) 1 is connected to the Internet 2. A potential seller or buyer who wishes to sell or purchase a used solar power generation system (hereinafter referred to as “used power generation system”) 20 by the trading support system 1 is a personal computer that can be connected to the Internet 2. If there is a general terminal (in the example shown, a personal computer) 3 such as a mobile phone, a special device other than that is not necessary. Therefore, anyone who has a connection environment to the Internet 2 can be a potential seller or buyer. Of course, the trading support system 1 according to the present invention can also ask the user for prior registration for reasons such as customer management and security.

  The buying and selling support system 1 includes a server 4 having a database in which information about a used power generation system that is an object of mediation is stored. The connection environment from the trading support system 1 to the Internet 2 is a normal one well known to those skilled in the art, such as a telephone line, a route control device, and a LAN, and no particularly new technology is used. The outline of the trading support system 1 is as follows. When a sale event occurs in a used power generation system 20 such as a solar battery panel used by user A, user A who has become a seller wishes to sell, model, performance, and year of manufacture by operating terminal 3a. The product information such as the sale price, the desired sale price, etc. are input as input data and registered in the buying and selling support system 1 through the Internet 2. The sale information is stored in the database 5 in the server 4 of the sale support system 1 by the sale product information storage means 6. The purchase applicant B registers the product information, installation conditions, and the like of the desired used power generation system in the trading support system 1 through the Internet 2 by operating the terminal 3b. The purchase information is also stored in the database 5 by the purchase information storage means 7. The simulation means 8 provided in the sales support system 1 also obtains sales data of sold products and installation conditions of purchase applicants, and performs simulation on the predicted power generation amount and the like. The conformity determination means 9 provided in the trading support system 1 determines whether or not the simulation result by the simulation means 8 conforms to the product information desired to be purchased. When it is determined by the conformity determination means 9 that the product is determined to be compatible, the sold product information notification means 10 notifies the purchase requester B via the network 2 of the sold product information of the photovoltaic power generation system 20 that is desired to be sold.

  By publishing the sales support system 1 of the present invention on the Internet 2, the number of sellers or buyers who use the sales support system 1 increases, and the possibility of matching between both increases dramatically. The seller accesses the sales support system 1 and registers information on the used power generation system 20 desired to be sold. This mechanism is similar to the mechanism for applying for an auction site that is often seen on the Internet 2 at present. At the time of registration, the seller inputs information such as the conversion efficiency and the type of amorphous silicon. Also, instead of inputting such detailed information, the manufacturer name and the years of use of the used power generation system 20 to be sold are input, and the product information of the used power generation system to be sold is extracted from the product data stored in advance. Good.

  In the present embodiment, the system name on the web of the trading support system of the present invention is assumed to be “solar reuse shop”. FIG. 2 is a diagram showing an example of a display screen of the buyer's terminal 3 in the buying and selling support system shown in FIG. It is assumed that the used power generation system is a solar cell power generation system that uses solar cells arranged on a roof. In the stage where a person who wants to purchase a used power generation system inputs the shape of the roof of the house where the used power generation system is installed, among the installation conditions as data of the used power generation system to be purchased, by means of input (keyboard, mouse, etc.) It is a screen. For example, there are a flat roof, a single roof, a gable, a square, a dormitory, and a main building, and the buyer selects from these options the one closest to the shape of the roof to be installed. When “OK” is selected after the selection, the screen shown in FIG. 3 is displayed.

  FIG. 3 is a diagram showing an example of a screen for inputting dimensions of the shape of the roof selected on the screen of FIG. Here, a case where a gable roof is selected is shown, and the width of the gable roof is input as “10 m”, the vertical width as “8.5 m”, and the height as “3 m”. In this embodiment, the numerical value is set to a unit of 0.5 m, and the input is a pull-down method. However, the present invention is not necessarily limited to this, and the minimum unit of input may be made finer, and the numerical value is directly input. It is good also as a system. When the dimensions are entered and “OK” is selected, the next screen shown in FIG. 4 is displayed.

  FIG. 4 is a diagram illustrating an example of a screen for selecting the direction of the roof on which the used power generation system is installed and the location area of the building to be installed. In this example, the figure of the gable roof selected above is shown in the circle with "Eastern, West, North and South" from the top, and this figure of the roof is matched to the direction of the roof to be installed. Can be rotated. In addition to such an input method, a method of directly inputting “East, West, North and South” or a method of selecting “East, West, North and South” from a pull-down menu may be used. As for the location area, a map of Japan is shown, and the buyer selects the prefecture where the building where the used power generation system is installed is located on the map. The location area is not limited to this input method. For example, a more detailed location area such as a municipal level may be selected instead of a prefecture level. In this way, when the roof direction and the location area are selected, “OK” is selected, and the next screen shown in FIG. 5 is displayed.

  FIG. 5 is a diagram showing an example of a screen for inputting a roof mounting type and installation style of a used power generation system to be purchased. Here, the roof mounting type of the solar cell system is “Japanese tile roof mounting type”, “Slate roof mounting type”, “Sheet metal / corrugated roof mounting type”, “Roof integrated type”, “Land roof stationary type” However, the present invention is not limited to these, and any other solar cell system may be added to the options. The buyer checks from these options what is appropriate for the roof to be installed. In addition, for example, in the case of the gable roof of the present embodiment, the installation style means whether to install on one or two sides of the inclined surface of the roof, and the buyer can select any desired style. To check. Of course, in the case of a roof other than a gable, options corresponding to each roof are displayed. When the roof mounting type and installation style of the used power generation system to be purchased are selected in this way, “OK” is selected, and the next screen shown in FIG. 6 is displayed.

  FIG. 6 is a diagram showing an example of a screen for setting the priority order of conditions for selecting a solar cell system and further setting for each selection condition. For prioritization of selection conditions, “power generation”, “price”, “year of manufacture”, “conversion efficiency”, and “type” are listed here, and buyers give priority by pull-down menus under each item. Set the ranking. In this case, “power generation” and “price” are given top priority, followed by “year of manufacture”, “conversion efficiency”, and “type”. Furthermore, on this screen, “minimum power generation amount”, “upper limit price”, “subsequent production year”, “minimum conversion efficiency”, and “type” can be set. In this example, “minimum power generation” is set to “2 kW”, “upper limit price” is set to “1 million yen”, “manufacturing year” is set to “after 2000”, and “minimum power generation” is set. “Conversion efficiency” and “Type” are not specified. After setting the priority of the selection condition and each selection condition, select “OK” and proceed to the next screen shown in FIG.

  FIG. 7 is a diagram illustrating an example of a condition confirmation screen that has been set so far. In the present embodiment, as the conditions set up to now, “roof shape / size”, “roof orientation”, “location area”, “roofing type”, “installation style”, and “priority” are displayed. ing. At this time, if there is an error in the setting item or if it is desired to correct it, selecting the corrected item switches to the selection screen for the selected item and resets the condition. If there are no correction items on this confirmation screen, “OK” is selected.

  With the confirmed input data, a conformity evaluation search with previously stored information about the used power generation system is performed. Based on each set condition, a search is made with a used solar power generation system registered by the seller, which is stored in the database. First, the performance of the used power generation system registered in the database is simulated under the installation conditions input by the buyer. In this embodiment, the predicted power generation amount is obtained under the setting conditions of “roof shape / size”, “roof direction”, “location area”, “roofing type”, and “installation style”. . The performance thus obtained by the simulation is compared with “2 kw or more” which is the selection condition set in advance. Based on this comparison result, a used power generation system that satisfies other selection conditions including “2 kw or more” is displayed on the screen shown in FIG.

  FIG. 8 is a diagram illustrating an example of a screen that displays a product that is searched based on a buyer's selection condition and that meets the selection condition. Product information such as the type of solar cell, year of manufacture, and power generation efficiency is displayed for each used solar power generation system. If there are many hits, select “Selection”. For example, the number of hits can be narrowed down by setting selection conditions for “maximum efficiency” and “type” that are not currently specified. If the selection condition is changed, “reselection” may be designated. In the item column of each used power generation system, there is “details”, and if this is selected, more detailed information about the used solar power generation system is displayed as shown in FIG. In addition, there is a “stock check check” box in the item column of each used power generation system. If this box is checked and “OK” is selected, the inventory can be confirmed and the process can proceed to provisional reservation and estimation.

  FIG. 9 is a detailed information display screen of a used power generation system for which “details” has been selected in the previous screen of FIG. 8. Here, what kind of performance the reuse solar cell system selected and displayed under the conditions input by the purchase applicant is displayed as a prediction. In this example, the effective value prediction of the power generation amount is displayed numerically in association with the installation area, the house direction, the roof angle, and the like. Moreover, the external appearance photograph of a solar cell system, the number of installation, and a power conditioner are displayed. In addition, the total amount from purchase to installation including transportation and relocation costs is displayed.

  FIG. 10 shows an outline of a system flow used in the used photovoltaic power generation trading support system according to the present invention. In the used solar power generation buying and selling support system 1, the processor 11 located at the core of the server stores the request data for selling the used power generation system of the user A who is the seller who wants to sell the communication network by operating the personal computer of the terminal 3a by the user A. Sent through. Further, the sunshine data of the area where the user A lives and the solar cell data sold to the user A are also sent to the processor 11. On the other hand, the purchase request data of B who is a purchase applicant and the solar cell installation conditions are also transmitted to the processor 11 through the communication network by operating the personal computer of the terminal 3b. Further, the sunshine data of the area where A resides is sent to the processor 11. The processor 11 executes programs PA, PB, PC,... For displaying screens as shown in FIGS. 2 to 9 in response to the personal computer operation by the sales applicant or the purchase applicant, and stores these information in the database 5. (See FIG. 1).

In the above-described embodiment, a roof-mounted solar cell has been described as a used solar power generation system that is a target for buying and selling on a network according to the present invention, but it is installed on a wall, a window, or the ground. It is clear that it may be a model. In each model, the shape, size, orientation, location area, type, and installation style are registered and used as installation conditions.

  About the used solar power generation system with which the transaction contract was established with the sales support system by this invention, a lease, rental, and loan may be sufficient as the transaction form after contract completion besides sale. In addition, if a used power generation system that matches the desired conditions is not found, the buyer registers his / her contact address such as mail address and telephone number, and as soon as a product that meets the desired conditions is registered in this system, A system for notifying buyers can be incorporated. Furthermore, it is possible to present a trade-in price, a disposal price, or the like calculated by a trader of a used solar power generation system based on sold product information registered by the applicant for sale.

  In the above embodiment, the present invention has been described as an intermediary for buying and selling used solar power generation systems on the network, but the selling side has taken over a store that sells products including new products or used solar power generation systems. It can also be used as a vendor that has received a sale request. In the case of selling a product including a new product, it is possible to compare prices between a second-hand purchase and a new purchase.

It is a figure which shows the outline | summary of the used photovoltaic power generation buying and selling support system by this invention. It is a figure which shows an example of the display screen of the buyer's terminal in the used photovoltaic power generation buying and selling support system shown in FIG. It is a figure which shows the screen of the step of inputting the magnitude | size of the roof of the house which mounts a photovoltaic power generation system among input data. It is a figure which shows the screen of the step of inputting the position and direction of the house which mounts a photovoltaic power generation system among input data. It is a figure which shows the screen of the step of inputting the roof mounting type and installation style of a photovoltaic power generation system among input data. It is a figure which shows an example of the screen set about the setting of the priority of the condition which selects a solar cell system among input data, and also about each selection condition. It is a figure which shows an example of the confirmation screen of input data. It is the screen on which the reuse solar cell system selected by the search of FIG. 7 was displayed as a list. It is a figure which shows an example of the screen which displays the goods searched based on the buyer's selection conditions and suitable for the selection conditions. It is a figure which shows the outline | summary of the system flow used for the used photovoltaic power generation buying and selling support system by this invention. It is a reference figure showing an example of a used car net sales screen.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Used solar power generation buying and selling support system 2 Internet 3 (3a, 3b, 3c ...) Terminal 4 Server 5 Database 6 Sold product information storage means 7 Purchase information storage means 8 Simulation means 9 Conformity judgment means 10 Sold product information notification means 11 Processor 20 Used solar power generation system A User (applicant for sale)
B Purchase applicant

Claims (2)

A solar power generation system buying and selling support system comprising a server connected to a communication network and a database connected to the server,
Sale product information storage means for storing the sale product information regarding the photovoltaic power generation system to be sold obtained from the seller who wishes to sell in the database, and the sun to be purchased obtained from the purchase applicant via the network Purchase information storage means for storing desired product information and installation conditions regarding the photovoltaic system in the database, simulation means for simulating the performance of the photovoltaic system to be sold based on the installation conditions, and results of the simulation means The suitability judging means for judging whether or not it matches the desired product information to be purchased, and the sale product information of the solar power generation system to be sold when it is judged to be fit by the suitability judging means via the network Notification of sold product information to notify the applicant Trading support system of solar power generation system that includes a stage.   The installation conditions are the shape, size, orientation, location area, type, and installation style of the roof, wall, window, and ground on which the solar power generation system is placed, and the simulation means is the solar power generation system that is desired to be sold The trading support system for a solar power generation system according to claim 1, wherein at least a power generation amount of the solar power generation system is simulated based on the sold product information and the installation conditions.

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