| 摘要 |
A method for analysing performance of a solar photovoltaic installation has the 5 steps of: a) receiving from the solar photovoltaic installation, data indicating measured value of power generated during at least one period of a test day and storing that data in a solar photovoltaic installation performance database against identification information for the solar photovoltaic installation; 10 b) determining an expected output of the solar photovoltaic installation for the at least one period of the test day using a first method; c) comparing the first expected output of the solar photovoltaic installation with the measured value of power generated for the at least one period of the test day; d) if the expected output of the solar photovoltaic installation determined by the 15 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, determining an expected output of the solar photovoltaic installation for the at least one period of the test day using at least one further method; e) if the expected output of the solar photovoltaic installation determined by the at 20 least one further 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 difference, issuing an under performance warning for the solar photovoltaic installation. 40 N rlznr ttsia Analysis NRetrieve D erom ecn, hr 56 104Find 'ed an v"Akue of 1 Deda:~t i~elastN: ~Comparative Startislie) p ftrecd nt the N day pezd: zN S~ystm Nffmorec z Assessmeot z Faltf Diagnosis Figure 10 |
