Posted January 28, 20187 yr 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 )
January 28, 20187 yr 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.
January 29, 20187 yr I'll definitely follow this one. Something I wanted to do for a very long time.....Many thanks.
January 29, 20187 yr Author 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!
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