KR101938796B1 - Rental-building energy management system based on reservation information and method thereof - Google Patents

Abstract

The present invention relates to an energy management system for a rental building used in a rental business providing a place for a certain period of time and receiving a rent, And a usage forecasting unit for estimating a usage amount of predicted power required during the rental period by using the received reservation information receiving unit and the building reservation information.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an energy management system,

The present invention relates to an energy management system and method for a rental building, and more particularly, to an energy management system and method for a rental building capable of efficiently managing energy of a rental building using building reservation information.

As the industry is highly developed, the consumption of energy is also rapidly increasing. For example, energy used for lighting reaches 20% of electric energy consumption, and electric energy consumption is increasing every year as various electric appliances become popular. This increase in energy consumption has a great impact on households and businesses as well as the national economy. As a result, efforts are being made to improve energy efficiency and encourage energy conservation at the national level.

As an example of efficient energy management measures, techniques for predicting future usage using building temperature, outdoor temperature, past power usage, humidity, and weather information are being studied. Such conventional techniques are disclosed in Korean Patent Laid-open Nos. 10-2009-0116848 and 10-2011-0073155.

It is an object of the present invention to provide an energy management system and method for a leased building capable of efficient energy management.

In order to accomplish the above object, the present invention provides an energy management system for a rental building used in a rental business providing a place for a certain period of time and receiving rent,

A reservation information receiving unit for receiving building reservation information including a lease date, a lease period, a type and number of used electric power devices from the user terminal, and a usage forecasting unit for estimating a usage amount forecasted in the rental period using the building reservation information The present invention provides an energy management system of a rental building including a building,

The bidding unit may further include a bidding unit for transmitting bidding information including a forecasted power usage amount calculated by the usage predicting unit and a lease date for which the predicted power usage amount is requested to an external power trading market server.

The system further includes a power device database that stores the types of the plurality of power devices and the amount of power consumption per each power device.

On the other hand, the usage predicting unit may search the database of the same type of power device as the used power device, and calculate the predicted power usage amount using the power usage amount per hour of the used power device.

Also, the building reservation information further includes expected usage time information of each of the used power devices. The usage prediction unit multiplies the number of each of the used power devices, the power usage amount per hour of the corresponding used power device, and the expected usage time, Can be calculated.

In addition, the building reservation information may further include whether or not the electric vehicle is parked, and the usage amount estimating unit may calculate the estimated electric power consumption by adding a certain electric power consumption amount when the building reservation information includes 'electric car parking' .

And an energy management unit charging and discharging the battery of the electric vehicle connected to the electric power system of the rental building.

Also, the energy management unit selectively charges and discharges the battery of the parked electric vehicle by using the schedule of the electric vehicle, and may charge the battery for a predetermined time immediately before the traveling time of the electric vehicle.

In addition, it may further include a compensation unit that provides a certain incentive to the user who inputs the type and number of electric power devices used, whether the electric vehicle is parked, and the operation schedule of the electric vehicle.

According to another aspect of the present invention, there is provided an energy management system for a rental building, which is used in a rental business providing a place for a certain period of time and receiving a rental fee, the energy management system comprising: an energy management unit for receiving a driving schedule, Wherein the energy management unit charges or discharges the battery while the electric vehicle is parked using the driving schedule and supplies the electric power discharged from the battery to a load connected to the power system of the rental building Provides an energy management system for a leased building that features.

Here, it is preferable that the energy management unit charges the battery for a predetermined time immediately before the traveling time of the electric vehicle.

According to another aspect of the present invention, there is provided an energy management method for a rental building, which is used in a rental business providing a place for a certain period of time and receiving rent, A reservation information reception step of receiving building reservation information including additional information including the type of the used power device to be used and the number of each used power device; Estimating a power usage amount for calculating a predicted power usage amount, and acquiring an amount of power to be obtained in a power trading market through bidding.

The present invention has an advantage that efficient energy management of a rental building can be performed using building reservation information.

1 is a schematic view showing an energy management system of a rental building, a power trading market server, and a user terminal.
FIG. 2 is a diagram schematically showing a configuration of an energy management system of a rental building according to an embodiment of the present invention.
FIG. 3 and FIG. 4 are diagrams illustrating a flow of an energy management method of a rental building according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

First, the term 'rental building' as used in the present invention means a building used for a rental business that provides a place for a certain period of time and receives rent. Here, the place may include a lodging facility, an exhibition hall, a meeting room, and the like. The leased buildings include buildings used for rental of hotels, motels, residence, condo, and pension. Also, the rental building includes an exhibition hall, a conference room, a stadium, and the like.

1 is a schematic diagram showing an energy management system (hereinafter referred to as an energy management system) of a rental building, a power trading market server, and a user terminal.

The energy management system 10 is preferably installed inside the rental building 1, but is not limited thereto. That is, the energy management system 10 may be provided at a separate location outside the rental building 1. [

The user terminal 20 receives building reservation information from a user. The building reservation information includes a type of rental place that the user wants to use, a rental date and time, and a rental period. The building reservation information will be described later in detail.

The user terminal 20 is connected to the energy management system 10 through a wired or wireless network. The user terminal 20 may be a personal computer, a portable mobile communication terminal, a PDA, a notebook computer, or the like. The user inputs building reservation information through the user terminal 20, and the entered building reservation information is transmitted to the energy management system 10 through a wired or wireless network. For example, the user can access the web page through which the building reservation information can be input through the user terminal 20, and the building reservation information inputted through the web page is transmitted to the energy management system 10.

Meanwhile, the power trading market server 40 and the energy management system 10 are connected through a wired or wireless network. The power trading market server 40 receives bidding information from a plurality of bidders and provides the received bidding information to the bidders. Where the bidder may be a power seller who sells the power or a power consumer who purchases the power. If the bidder is a power consumer, a reverse auction system can be applied. That is, the bidder transmits bidding information to the power trading market server 40 including the amount of purchased power to be purchased, the date and time when the purchased power is required, and the like. The transmitted bidding information is transmitted to a plurality of registered power sellers, and the plurality of power sellers receiving the bid information transmits the bid price to the power trading market server 40. The bid price is again transmitted to the power buyer, and the power buyer selects the best power seller, whereby a power trading contract can be established.

Referring to FIG. 2, an energy management system of a rental building according to an embodiment of the present invention will be described in detail.

The energy management system 10 according to an embodiment of the present invention may include a reservation information receiving unit 11 for receiving building reservation information from the user terminal 20. [ In addition, it may include a usage predicting unit 12 for estimating a predicted power usage amount using the building reservation information.

The reservation information receiving unit 11 receives the building reservation information from the user terminal 20. The user inputs the building reservation information through the user terminal 20, and the entered building reservation information is transmitted to the reservation information receiving unit 11 via the wired or wireless network. The user terminal 20 may be a portable communication terminal such as a personal computer, a notebook computer, a PDA, or a smart phone.

The building reservation information may include the lease date of the lease place to be used by the user, the lease period, the type of the used power device to be used in the lease period, the number of each used power device, and the like. At this time, the lease date and lease period correspond to the basic information, and the type of the used power device and the number of the used power devices correspond to additional information.

The lease date means the date when the user intends to rent the lease. Also, the lease period means a period for renting the lease place. If the above rental property is a hotel, if a user reserves a deluxe room from January 3, 2012 to January 5, 2012, the rental date will be January 3, 2012, and the rental period will be 3 days do.

One type of additional information is the type of power equipment that the user wants to use during the lease period. The used power device refers to all power devices that perform a certain function using electric power, and can be a notebook, a mobile phone, a printer, and the like.

When the user intends to use two notebooks and three mobile phones during the rental period, the user inputs the notebook and mobile phone as the type of the used electric power device when entering the building reservation information through the user terminal, You can enter the number. When the leased building is an exhibition hall or a conference hall, the user can further input a beam projector or the like with the used power device.

In addition, the building reservation information may be used as additional information to input an expected use time of each used power device. That is, the user can input an expected use time that is expected to be used for each powered device during the rental period. For example, while the user inputs the building reservation information, while inputting the beam projector as the power-using device, the user can input 5 hours as the use time of the beam projector.

The usage predicting unit 12 calculates the predicted power usage amount required in the rental period by using the building reservation information.

The usage predicting unit 12 may calculate the predicted power usage amount by adding the basic power usage amount commonly used during the lease period and the additional power usage amount used by the power usage apparatus inputted by the additional information.

When the renting place is the meeting place and the rental period is two days, the lighting in the rental place and the use of the heating / cooling equipment are essential, so the total number of lighting, the number of heating and cooling equipment, The basic power consumption is calculated by using the power consumption per unit time of the heating / cooling equipment. Alternatively, the basic power consumption can be calculated by using the daily or hourly average power consumption of the rental place for a certain period of time using the daily or hourly power consumption information of the rental place. That is, it is possible to calculate the average power consumption per day or hour of the rental place for a predetermined period (month or year) by measuring the daily power consumption of the rental place or the hourly use, and to calculate the basic power consumption using the average power consumption .

The additional power consumption can be calculated by using the average power consumption corresponding to the type of the used power device, the number of the used power devices, and the expected use time of the used power device.

Here, the energy management system according to an embodiment of the present invention preferably includes a power device database 14 for storing a plurality of types of power devices and an average power consumption per each power device.

The power device database 14 stores a plurality of types of power devices and average power usage information of each power device. For example, the power device database 14 stores a plurality of types of power devices such as a television, a notebook, a beam projector, and a printer. The average power consumption per hour of the television, the average power consumption per hour of the notebook, Power consumption, and average power consumption per hour of the printer.

The usage predicting unit 12 searches the power device database 14 for a power device of the same type as the used power device. Also, the average power consumption per hour of the used power device is retrieved. Then, the usage predicting unit 12 calculates an additional power consumption by multiplying the average power consumption per hour of the corresponding used power device by the expected use time of the corresponding used power device and the number of the corresponding used power devices included in the building reservation information can do. The average power usage per hour may be an average of power usage per one or more representative machines of the user equipment.

On the other hand, if the user does not input the expected use time in the building reservation information, the usage predicting unit 12 may calculate the additional power usage amount assuming a time corresponding to a certain ratio of the lease period as the expected use time.

In addition, the building reservation information may further include whether or not the electric vehicle is parked.

Whether the electric car is parked means whether or not to park the electric car. The user can input whether or not the electric vehicle is parked through the user terminal. If you park an electric car, you can enter the 'electric car parking' information. In addition, the building reservation information may further include at least one of the type of the electric vehicle, the battery capacity of the electric vehicle, the expected number of times of driving the electric vehicle, and the expected driving time of the electric vehicle. The user can input at least one of the type of the electric vehicle, the battery capacity of the electric vehicle, and the expected driving time of the electric vehicle through the user terminal.

If the building reservation information includes 'electric car parking' information, the usage predicting unit 12 may calculate a predicted electric power consumption by adding a certain electric power consumption. The predetermined power consumption may be an average power required for charging the electric vehicle. For example, if the user inputs only the electric car parking status, the average electric energy required for charging can be calculated based on the type of the most used electric vehicle. When the user inputs the type of the electric vehicle or the battery capacity of the electric vehicle, the average electric energy required for charging can be calculated based on the amount of electric power required for one charge using the battery information or the battery capacity of the electric vehicle . In addition, when the estimated running time of the electric vehicle is input, the average electric energy required can be calculated based on the number of times of charging required for the expected running time.

Meanwhile, the energy management system of the rental building according to an embodiment of the present invention may include bidding information including a lease date, which is estimated by the usage predicting unit 12, To the server (40).

The energy management system according to the embodiment of the present invention can reserve the predicted power usage amount required for the rental date in advance by bidding the predicted power usage amount through the bidding unit 13 in the power trading market. With the development of smart grid, it is possible to develop with various renewable energy, and with the emergence of small and medium-sized power generation companies, it is expected that the monopolistic power sales structure by specific power suppliers will change into multi-level power sales structure. In such a multi-level power sales structure, the bidding method enables the consumer to purchase electric power from a plurality of electric power sellers, and it is possible for the consumer to directly select the electric power seller. In a bidding system that encourages competition among power sellers, consumers can purchase electricity at low cost. Also, if the estimated power usage required for the lease date is bidded before the lease date, the power can be supplied at a lower cost than purchasing the power directly at the lease date. If the actual power usage on the lease date exceeds the predicted power usage, the excess power may be purchased and used in the general power market. Here, the general electricity market refers to the electricity market where electric power sellers (for example, Korea Electric Power Corporation) sell electricity.

The bidding process by the bidding unit 13 proceeds to a reverse auction system. The bidding unit 13 transmits to the power trading market server 40 bidding information including a bidding power consumption amount, which is a bidding power amount, and a rental date, which is desired to receive bidding power amount. The power trading market server 40 transmits the bid information to a plurality of power sellers. The power seller who desires to bid among the power sellers that have received the bid information transmits the application information including the power unit price or the sales amount to the power trading market server 40. The application information is transmitted again to the bidding unit, and the bidding unit selects the best power seller among the power sellers that transmitted the application information, transmits the selected best seller to the power trading market server 40, A transaction contract is established. Here, the process of selecting the best power seller can be performed by combining the power unit price, the power sales history, the reliability, and the like.

Meanwhile, the bidding unit 13 can directly purchase the predicted power usage amount in the power trading market. That is, the bidding unit 13 can connect to the power trading market server 40 to search for a power seller desiring to supply power at the lease date, and select the best power seller among the retrieved power sellers to establish a power trading contract.

In this way, there is an advantage that the electric power can be purchased at a lower cost by securing the predicted electric power consumption through the bidding unit 13 in advance.

Meanwhile, the energy management system of the rental building according to an embodiment of the present invention may further include an energy management unit 15 that manages the charging or discharging schedule of the battery of the electric vehicle connected to the power system of the rental building. The energy management unit 15 charges or discharges the battery according to the charging or discharging schedule. The energy management unit 15 may use the battery of the electric vehicle parked in the rental building as an energy storage device which is one of the distributed power sources. That is, the energy management unit 15 charges the battery of the electric vehicle when the electric vehicle is parked, the battery of the electric vehicle when the electric charge is low, and discharges the charged battery when the electric charge is expensive, .

The power system of the leased building means an infrastructure for supplying power to a leased building such as an electric distribution board, a distribution board, and a power line installed in a rental building.

The energy management unit 15 creates a charging and discharging schedule of the electric vehicle using the electric vehicle's operating schedule and charges or discharges the battery of the electric vehicle according to the created schedule. That is, the energy management unit 15 selectively charges and discharges the battery of the parked electric vehicle by using the schedule of the electric vehicle.

The driving schedule means a driving schedule and a parking schedule of the electric vehicle. That is, the operation schedule includes the expected use time and the expected parking time of the electric vehicle. The driving schedule may be input through the user terminal 20. [ At this time, the user terminal 20 means a user terminal receiving the building reservation information. That is, the user can input the travel schedule when entering the building reservation information. The operation schedule input from the user terminal 20 may be transmitted to the reservation information receiving unit 11 of the energy management system 10 but may not necessarily be transmitted to the energy management unit 15. [

Alternatively, the driving schedule may be input via the second user terminal 30. [ Preferably, the second user terminal 30 is installed in a rental building. That is, the user can input the driving schedule through the second user terminal 30 while using the rental place. For example, if the user leases the hotel, the second user terminal 30 may be provided in the hotel lobby or in each stall room. The user can input the driving schedule of the electric vehicle through the second user terminal 30 provided in the lobby or the guest room. At this time, the operation schedule inputted through the second user terminal 30 can be transmitted to the energy management unit 15. [ That is, in this case, the energy management unit 15 receives the driving schedule including the driving schedule and the parking schedule of the electric vehicle from the second user terminal 30.

When the electric vehicle is charged or discharged while the electric vehicle is parked, the energy management unit 15 can supply the electric power discharged from the battery to the load connected to the power system of the rental building.

The energy management unit 15 discharges the battery of the electric vehicle and supplies the discharged electric power to the load connected to the power system of the rental building if the current electric power charge is high. In addition, if the electric power charge is low, the battery of the electric vehicle is charged. After that, when the power charge is high, the battery is discharged again and supplied to the load of the rental building.

The energy management unit 15 charges the battery of the electric vehicle for a predetermined time immediately before the traveling time of the electric vehicle. At this time, the predetermined time means a minimum time for the battery of the electric vehicle to be fully charged or to be charged above a predetermined reference level. The predetermined criteria may be a minimum standard for smooth running of the electric vehicle, and may be, for example, 70% to 80%. For example, if the current time is 04:30, the time required to fully charge the battery is 1 hour, and the driving time is 09:30, the energy management unit charges the battery from 08:30. Therefore, when the user wants to use the electric vehicle at the driving time, the electric vehicle can run smoothly.

The energy management system 10 of the rental building according to an embodiment of the present invention may further include a compensation unit 16. [

The compensation unit 16 provides a certain incentive to the user who has input the additional information of the building reservation information, the user who entered the electric vehicle parking information, and the user who entered the operation schedule of the electric vehicle. The incentive may be a discount on rent.

The compensating unit 16 incentively provides the difference between the electric power usage fee when the predicted electric power consumption is secured in advance and the electric power usage charge when the electric power consumption is secured on the day of the rental on the basis of the additional information inputted by the user . Alternatively, the energy management unit 15 can provide all or a part of the gain generated by using the battery of the electric vehicle as a distributed power source as an incentive.

3 and 4, an energy management method for a rental building according to an embodiment of the present invention will be described below.

The energy management method for a leased building according to an embodiment of the present invention includes a step of receiving a reservation information from a user terminal (S110), a step of estimating a usage amount of the predicted power using the building reservation information (S120). In addition, the method may further include a step of acquiring a power amount (S 130) in which the predicted power usage amount is obtained in a power trading market through bidding. In addition, it may further include a compensation step (S160) for providing a certain incentive to the user.

In the reservation information receiving step S110, the building reservation information is received from the user terminal 20. (S10) The user terminal 20 is connected to the energy management system 10 via a wired or wireless network. The user terminal 20 may be a personal computer, a portable mobile communication terminal, a PDA, a notebook computer, or the like. The user inputs the building reservation information through the user terminal 20 and the inputted building reservation information is transmitted to the reservation information receiving unit 11 of the energy management system 10. [ The building reservation information includes basic information including a lease date and a lease period of a lease place to be used by the user, additional information including the type of the used power device to be used in the lease period, and the number of each used power device. The additional information may include an expected use time of each used power device. Further, the additional information may include whether or not the electric vehicle is parked.

(S20) The usage forecasting unit 12 of the energy management system 10 estimates the amount of usage of the buildings in the building reservation (step S20) Information is used to estimate the predicted power usage.

The usage predicting unit 12 may calculate the predicted power usage amount by adding the basic power usage amount commonly used during the lease period and the additional power usage amount used by the power usage apparatus inputted by the additional information.

The additional power consumption can be calculated using the average power consumption corresponding to the type of the used power device, the number of the used power devices, and the expected use time of the used power device.

The usage predicting unit 12 calculates a usage amount of each of the power devices in the power device database 14 that stores the types of the power devices and average power consumption per hour of each power device, Search for power usage. The additional power consumption can be calculated by multiplying the average power consumption per hour of the used power device by the expected use time of the corresponding used power device and the number of the used power devices included in the building reservation information. On the other hand, if the user does not input the expected use time in the building reservation information, the usage predicting unit 12 may calculate the additional power usage amount assuming a time corresponding to a certain ratio of the lease period as the expected use time.

If the building reservation information includes 'electric car parking' information, the usage predicting unit 12 may calculate a predicted electric power consumption by adding a certain electric power consumption.

In the step of acquiring the amount of power (S130), the predicted power usage amount is obtained in a power trading market through bidding. In the power amount acquisition step (S130), the predicted power usage amount is acquired in a power trading market through a general auction system or a reverse auction system.

Here, a general auction system means an auction system in which a power buyer selects an electric power seller by viewing information bidded by the electric power seller.

In addition, the reverse auction system is a system in which a power buyer posts bid information including a purchased power amount and a purchase date and time that requires a purchased power amount, and a plurality of power sellers present application information including price information including a power unit price to a power buyer And the power buyer means an auction system for selecting at least one power seller among a plurality of power sellers.

If the predicted power usage amount is acquired in the power trading market through the reverse auction system, the bid information may be transmitted to the power trading market server (S30), and the power trading market server may receive the request information of the power seller. )

In the compensation step S160, the user who inputs the additional information of the building reservation information, the user who inputs the electric vehicle parking information, and the user who inputs the operation schedule of the electric vehicle are provided with a certain incentive. (S60) Discount.

Meanwhile, the energy management method of a rental building according to an embodiment of the present invention may include a reception schedule receiving step (S140) of receiving an operation schedule of an electric vehicle from a user terminal. In addition, it may further include an energy management step (S150) by charging or discharging the electric vehicle battery using the electric vehicle's operating schedule.

In the operation schedule receiving step S150, the operation schedule including the driving schedule and the parking schedule of the electric vehicle is received from the user terminal. (S40) The operation schedule can be inputted through the second user terminal 30, The operation schedule inputted through the second user terminal 30 is transmitted to the energy management unit 15 of the energy management system 10. [ The second user terminal 30 may be installed in a rental building. Meanwhile, the operation schedule can be inputted through the user terminal 20 which inputs the building reservation information. That is, the user can input the schedule information of the electric vehicle while inputting the building reservation information, and the inputted schedule information can be transmitted to the reservation information receiver 11 or the energy manager 15.

In the energy management step S160, the electric vehicle battery is charged or discharged using the electric vehicle's operation schedule. (S50) In the energy management step S160, the battery is discharged and connected to the power system of the rental building And supplies power to the load.

More specifically, the energy management unit 15 discharges the battery of the electric vehicle and supplies the discharged electric power to the load connected to the power system of the rental building, if the current electric power charge is high. In addition, if the electric power charge is low, the battery of the electric vehicle is charged. After that, when the power charge is high, the battery is discharged again and supplied to the load of the rental building.

The energy management unit 15 charges the battery of the electric vehicle for a predetermined time immediately before the traveling time of the electric vehicle. At this time, the predetermined time means a minimum time for the battery of the electric vehicle to be fully charged or to be charged above a predetermined reference level.

Meanwhile, the energy management system of the rental building according to another embodiment of the present invention may be constituted by the energy management unit 15.

That is, the energy management system of the rental building according to another embodiment of the present invention includes an energy management unit 15 that receives a driving schedule including a driving schedule and a parking schedule of an electric vehicle from a user terminal, 15 may charge or discharge the battery while the electric vehicle is parked using the travel schedule and supply the electric power discharged from the battery to a load connected to the power system of the rental building.

According to another aspect of the present invention, there is provided a method of managing energy in a rental building, the method comprising: receiving a driving schedule of an electric vehicle from a user terminal; receiving a driving schedule (S140) Or performing an energy management step (S150) by discharging.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments of the present invention are not intended to limit the scope of the present invention but to limit the scope of the present invention. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents thereof should be construed as being included in the scope of the present invention.

10 Energy management system
11 reservation information receiver
12 Usage Prediction Unit
13 Bidding Department
14 Electric Power Equipment Database
15 Energy Management Department
16 compensation section
20 user terminal
30 second user terminal
40 Power trading market server

Claims (12)

In an energy management system of a rental building used for a rental business that provides a place for a certain period of time and receives rent,
A reservation information receiving unit that receives building reservation information including a lease date, a lease period, a type and a number of used power devices from a user terminal, a usage information estimation unit that estimates a usage amount used in the rental period using the building reservation information, part; And
The estimated power usage amount calculated by the usage predicting unit and the lease date for which the predicted power usage amount is requested is transmitted to an external power trading market server to reserve the predicted power usage amount required for the lease date in advance The energy management system of the rental building including the bidding unit of the rental building. delete The method according to claim 1,
Further comprising a power device database for storing the types of the plurality of power devices and the power consumption per hour of each power device. The method of claim 3,
Wherein the usage predicting unit searches the database for a power device of the same type as the used power device and calculates a predicted power usage amount based on the power usage amount per hour of the used power device. 5. The method of claim 4,
The building reservation information further includes expected use time information of each of the used power devices,
Wherein the usage predicting unit calculates a predicted power usage amount by multiplying the number of each of the power usage devices, the power usage amount per hour of the power usage device, and the expected usage time. The method according to claim 1,
The building reservation information further includes whether or not the electric vehicle is parked,
Wherein the usage predicting unit calculates a power consumption of the rental building by adding a predetermined power consumption to the predicted power consumption when the building reservation information includes 'electric car parking' information. The method according to claim 1,
Further comprising an energy management unit for charging and discharging the battery of the electric vehicle connected to the electric power system of the rental building. 8. The method of claim 7,
Wherein the energy management unit selectively charges and discharges the battery of the parked electric vehicle by using the schedule of the electric vehicle and charges the battery for a predetermined time immediately before the traveling time of the electric vehicle. . The method according to claim 1,
Further comprising a compensation unit for providing a certain incentive to the user who inputs the type and number of the electric power equipment used, the electric car parking status, and the electric vehicle operation schedule. In an energy management system of a rental building used for a rental business that provides a place for a certain period of time and receives rent,
And an energy management unit for receiving a driving schedule including a driving schedule and a parking schedule of the electric vehicle from the user terminal,
Wherein the energy management unit charges or discharges the battery while the electric vehicle is parked using the driving schedule and supplies the electric power discharged from the battery to a load connected to the power system of the rental building,
Wherein the energy management unit receives the discharged electricity from the electric vehicle in a time period in which the electric bills are expensive and supplies electricity to the electric vehicle in a time period in which the electric bills are inexpensive to charge the electric vehicle. Energy management system. 11. The method of claim 10,
Wherein the energy management unit charges the battery for a predetermined time immediately before the traveling time of the electric vehicle. A method of managing energy in a rental building performed in an energy management system of a rental building including a reservation information receiving unit, a usage predicting unit, and a bidding unit, the rental building providing a place for a predetermined period and receiving rent,
The reservation information receiving unit receives from the user terminal the basic information including the lease date of the rental place, the lease period, the building reservation information including the additional information including the type of the used power device to be used in the lease period, Receiving a reservation information;
A power consumption predicting step of receiving the building reservation information from the reservation information receiving unit and calculating a predicted power consumption to be used in the lease date and the lease period; And
And transmitting the bidding information to the external power trading market server, wherein the bidding information includes the calculated estimated power usage amount and the lease date for which the predicted power usage amount is requested.

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