3 ms·
Would be kinda interesting to see a histogram of the azimuths and/or tilt angles. In my native Netherlands I'd guess to see that peaking at ~south at say 15-30
by ragebol 6mo ago
Would be kinda interesting to see a histogram of the azimuths and/or tilt angles.
In my native Netherlands I'd guess to see that peaking at ~south at say 15-30 degrees, with some lower peaks at east/west combos.
Curious to see what it would be in this dataset.
- dhosek 6mo agoIt should be roughly correlated with latitude (the exceptions being panels on sloped roofs which will match the roof slope).
- ragebol 6mo agoTilt should correlate to latitude for panels with an azimuth due South. For panels with east/west azimuth, the tilt should correlate with where the sun is at 7-8AM and 17-18PM, at least in my area. ((I think you have your concept of azimuth and tilt mixed up; I know I have when I was originally typing a different parent comment)
- marklit 6mo agoI love that idea. I don't have time for anything elaborate today but I dropped two visualisations at the bottom of the post.
- Tade0 6mo agoThere's a helpful chart here, which happens to match your approximate latitude: https://ratedpower.com/blog/solar-panel-orientation/ https://ratedpower.com/blog/solar-panel-orientation/
- ragebol 6mo agoThnx! Seems to match my experience as well, I got a set of 12 south facing panels and a set of 12 split over east and west on my flat roof. The E/W start and end a bit before/after the south facing set.
- throw0101d 6mo ago> In my native Netherlands I'd guess to see that peaking at ~south at say 15-30 degrees, with some lower peaks at east/west combos. Folks are doing some interesting exploration of the pros and cons of different alignments, e.g.: > When roof area is limited, the question becomes: What layout lets you install the most space-efficient solar capacity within budget on the available area? In those scenarios, an east–west (E–W) layout can outperform a south-facing layout. The South layout may be “better positioned”, but the E-W allows the installation of more panels in the same area. * https://ases.org/east-west-vs-south-facing-solar-when-more-panels-beats-perfect-direction/ https://ases.org/east-west-vs-south-facing-solar-when-more-p... Basically examining 'quality versus quantity', depending on what your location and roof allows.
- ragebol 6mo agoYep, sounds all too familiar. I installed a east/west facing set myself on our flat roof. Looking at dynamic power prices of the preceding year, multiplied by expected power output. Even wrote a simple space optimizer for this one time. But messed up some measurements so had to change on the fly anyways. The old adagium still holds: measure once and curse twice.
- rootusrootus 6mo agoI thought the thing to do these days is put them flat and as close together as practical. You lose a few points of efficiency but double the number of panels you can fit in a given area. And panels are so cheap that this trade-off makes perfect sense.
- ragebol 6mo agoCan fit more if you tilt them a little bit. Also easier for maintenance/access, although they don't need much if at all beyond some cleaning.