Mark Posted January 28, 2018 Share Posted January 28, 2018 I have a small temperature experiment starting today... I managed to source some iButtons (temperature only) to measure the temperature at 2 different points on my PV array. Buttons are now installed and I'll give them a few weeks to collect data. Some initial specs: Zinc corrugated roof/Aluminium adjustable frame (tilt = 45deg) 15 min reading intervals Button 1: Bottom - Located inside of the panel frame but NOT on the glass backing (about 150mm from roof) Button 2: Centre - Located inside of the panel frame but NOT on the glass backing (about 400mm from roof) Button 3: Top - Located inside of the panel frame but NOT on the glass backing (about 700mm from roof) The array is 6 x 310w panels long so the buttons are placed in middle of the array. (Panel size = 1800mmx900mm) I should be able to plot the 3x sets of PV readings on a spreadsheet with hopefully weather data as well (maybe only temperature ) ibiza, ___ and Chris Hobson 3 Quote Link to comment Share on other sites More sharing options...
Chris Hobson Posted January 28, 2018 Share Posted January 28, 2018 Mark man that is going to provide useful data. Mark 1 Quote Link to comment Share on other sites More sharing options...
SilverNodashi Posted January 28, 2018 Share Posted January 28, 2018 I have a similar setup running for some time already, but used some DB1820 sensors connected to a Raspberry Pi. On average, the temperature below my panels are 10 degrees cooler than in direct sun light. Quote Link to comment Share on other sites More sharing options...
Czauto Posted January 29, 2018 Share Posted January 29, 2018 I'll definitely follow this one. Something I wanted to do for a very long time.....Many thanks. Quote Link to comment Share on other sites More sharing options...
Mark Posted January 29, 2018 Author Share Posted January 29, 2018 12 hours ago, SilverNodashi said: I have a similar setup running for some time already, but used some DB1820 sensors connected to a Raspberry Pi. On average, the temperature below my panels are 10 degrees cooler than in direct sun light. Nice! Quote Link to comment Share on other sites More sharing options...
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