Patent ID: 9590559
Date: 2017-03-07
CPC Classifications: H01L,H02S,H04Q,Y02E

Claim:
1. A system for analysing performance of a solar photovoltaic installation comprising: a server remotely connected to the solar photovoltaic installation to receive data from the solar photovoltaic installation indicating a measured value of power generated during at least one period of a test day; a server remotely connected to the solar photovoltaic installation to receive data from the solar photovoltaic installation indicating a measured value of power generated during at least one period of a test day; data storage associated with the server to store the data indicating the measured value of power generated during at least one period of a test day in a solar photovoltaic installation performance database against identification information for the solar photovoltaic installation; an expected output determination performed by the server to determine an expected output of the solar photovoltaic installation for the at least one period of the test day using a first method; a comparison performed by the server to compare the first expected output of the solar photovoltaic installation with the measured value of power generated by solar photovoltaic installation for the at least one period of the test day; a first difference detection performed by the server to provide an out of range indication when the expected output of the solar photovoltaic installation determined by the server using the first method differs from the measured value of power generated by the solar photovoltaic installation for the at least one period of the test day by more than an acceptable tolerance; a further comparison performed by the server to compare the measured value of power generated by the solar photovoltaic installation for the at least one period of the test day with an expected output of the solar photovoltaic installation for the at least one period of the test day using at least one further method; a further difference detection performed by the server to provide an under performance warning for the solar photovoltaic installation when the expected output of the solar photovoltaic installation determined by the server using the at least one further method differs from the measured power generated by the solar photovoltaic installation for the at least one period of the test day by more than an acceptable difference.