senk007 Posted August 4, 2020 Share Posted August 4, 2020 Hello,I have a complete weather station from Davis and it also includes Solar Radiation Sensor (pyranometer).(Vantage Pro2 Plus with 24-Hr Fan Aspirated Radiation Shield)And I want to measure PR (Performance Ratio) daily/weekly/Monthly.I am confused with installation of a pyranometer .How should I install Pyranometer, shall I install straight horizontal (on a pole along with rain collector) or should I install at the same angle as Solar panels (on the solar structure as PoA mounting)I guess, if I install a horizontal flat, then it would measure GHI, in that case, I need to convert GHI to PoA, which I do not know how to convert.For PR calculation, which one is better method?Horizontal or at same angle of solar panel?I saw many solar installations and they almost always install at Panel angle. Like photo shown below.But many of them are also recommending installing at horizontal and then convert it to PoA using a long and lengthy calculation.Please suggest and help.ThanksSenk Link to comment Share on other sites More sharing options...
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