I am in the process of installing PV on the ground (south facing). I want to align the PV well with the sun to make the best use of the spring / summer / autumn time.
I am looking for a reasonable calculator (preferably open source) that will help me calculate the optimal panel tilt for ~ (52N, 21E).
Can anyone recommend something worth attention?
Thanks in advance for any constructive feedback.
When I tried to tell it where I lived. I gave it the first 3 characters of my postcode, it showed the map putting me the opposite side of the city to where I live, when I clicked on my true location as instructed, it told me my address wasn’t in the US. Which is true, it isn’t.
The other website mentioned earlier worked fine for me, and appeared to be credible.
The blue rectangle on the map indicates the NREL National Solar Radiation Database (NSRDB) grid cell for your location. If you want to use data for a different NSRDB grid cell, double-click the map to move the rectangle. Dragging the rectangle will not move it.
If your location is outside the NSRDB area, the map shows pins for the nearest alternate data sites instead of a rectangle: Click a pin to choose the site you want to use.