The embodiments comprise a solar cell array formed by arranging plural solar cell strings each having solar cell modules connected in series; a solar-cell-related information holding unit for holding solar-cell-related information on any of solar cell modules, solar cell strings, and solar cell array; and an information transmitting unit for transmitting the solar-cell-related information acquired from solar-cell-related information holding unit to an outside. The solar-cell-related information holding unit includes an identification information holding part for holding identification information for identifying any of solar cell modules, solar cell strings, and solar cell array; a solar cell information holding part for holding information on any of solar cell modules, solar cell strings, and solar cell array; and a position information holding part for holding position information for identifying a position of any of solar cell modules, solar cell strings, and solar cell array.

Photovoltaic power generation system

PROBLEM TO BE SOLVED: To provide a solar energy generation diagnostic system which conducts more reliable failure diagnosisSOLUTION: Power generation information, solar insolation information, and temperature information are obtained (S100), and these pieces of information are recorded (S110) A predicted power generation amount is calculated by using an actual insolation amount obtained based on the insolation information and a panel temperature obtained based on the temperature information (S120 to S140) Further, the actual power generation amount is calculated based on the power generation information (S150) When the error between the actual power generation amount and the predicted power generation amount becomes a certain value or more, the diagnostic system displays the diagnosis of the system failure of the solar energy generation system (S160:YES, S170) Furthermore, the diagnostic system adjusts a design coefficient, which is obtained by quantifying power generation loss factors, by using a loss coefficient obtained by SV method, the rating capacity of PCS 20, and the deterioration correction coefficient which is preset according to a type of the solar cell (S130)

Solar energy generation diagnostic system

PROBLEM TO BE SOLVED: To quickly obtain information as required for raising the will to introduce a photovoltaic power generation device at a low cost by a user who installed the photovoltaic power generation device. SOLUTION: When the user sells electricity to a power company if a generated power amount exceeds power consumption amount, and the user buys electricity from the power company if it becomes lower. A photovoltaic power generation control server 400 prepares cost information which gives advantages to the user who installs the photovoltaic power generation device 100, stores it in a homepage information database 408, and displays it to the user. Besides, power generation information and power consumption information are prepared as homepage information to be displayed to the user so that the user can increase the generated power to further reduce electric power rate to be paid or the user can reduce the power consumption by a load 150. The display destination of the homepage information is a user terminal 750 to be connected with a network 300. Thus, the user can quickly obtain the homepage information through the user terminal 750 regardless of time and place from a place where the user is even when the user is not in his/her house. COPYRIGHT: (C)2003,JPO

Server, system and method for photovoltaic power generation control, and machine readable recording medium for recording program for realizing the method

PROBLEM TO BE SOLVED: To provide a failure diagnosis system or the like, capable of detecting a failure location of a solar cell string without requiring for information on a solar cell string with no failure location. SOLUTION: In a failure diagnosis system, a failure location of a solar cell string comprising a plurality of solar cell modules connected in series is estimated to be diagnosed. The failure diagnosis system includes: a signal generator applying an input signal on a positive electrode or a negative electrode of the solar cell string; a waveform observation device observing an output signal relative to the input signal; and a diagnosis device estimating a failure location based on each output signal. The diagnosis device includes: a storage means storing a string length which is a distance from the positive electrode to the negative electrode; a reflected wave evaluation means evaluating each output signal, and determining each reflected wave arrival time, which is a period from the application of the input signal to the observation of the output signal, to allow the storage means to store the time; and an operation means estimating the failure location based on each reflected wave arrival time, in addition to information on the string length. COPYRIGHT: (C)2011,JPO&INPIT

Failure diagnosis system, failure diagnosis device, failure diagnosis method, program, and recording medium

PROBLEM TO BE SOLVED: To provide advice information to a user who has installed a solar energy generation device. SOLUTION: The method of controlling the solar energy generation comprises the steps of: receiving generated energy and an amount of used electricity form the solar energy generation device connected to a network; calculating an electric power energy purchased according to time zone (S160); calculating an electric power energy sold according to time zone (S162); reading out a charge table for purchased and sold electric power (S164); calculating an electricity rate for purchased and sold electric power according to an agreement kind (S166); extracting the agreement kind that a disbursement amount to utility company which deducts a received amount for sold electric power from a disbursement amount for purchased electric power is reduced most (S168); and generating the advice information to the user, based on the extracted agreement kind and the calculated disbursement amount to the utility company.

Solar energy generation control system, solar energy generation control server used therein, solar energy generation device, solar energy generation control method and machine readable record medium recorded with program to achieve the same method

PURPOSE: To obtain a diagnostic system for solar cell in which a solar power generation system can be diagnosed and recovered from failure instantly while reducing the amount of maintenance work at the time of maintenance/inspection on the maintenance company side and lowering of power generation due to a shade can be grasped on the user side along with the failure of unit solar cell part (module, cell) and a countermeasure can be taken immediately. CONSTITUTION: The diagnostic system for solar cell comprises solar cell arrays 8 in a solar power generation system, a pilot module M-1 different from the solar cell array 8, and a diagnostic section 37 for producing an output characteristic curve model of the solar cell array 8 from the output characteristic curve of the pilot module M-1 and comparing the output characteristic curve model with the output characteristic curve of the solar cell array 8 to diagnose abnormality of the solar array 8.

Harikage Inai

Papers

Diagnostic system for solar cell