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Results tagged with solar-panels
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user 4945
For questions about photovoltaic panels or photovoltaic-based solar power systems.
8
votes
Heat large pool with electric via solar panels?
You have a pretty big pool by residential standards but I still am surprised it is costing you that much... almost $2k per month!
Assuming a price of $.90 / therm (average in the NY area, according …
- 14.2k
8
votes
Accepted
What's a reasonable expectation for efficiency in modern solar panels?
If you're in the northern hemisphere, the lower angle of the sun in the winter is probably contributing to your low numbers. (When the sun is low in the sky it passes through more atmosphere to reach …
- 14.2k
0
votes
Accepted
Solar charge controller wiring
Some charge controllers have ways of programming the "LOAD" terminal, e.g. to only provide voltage at night (i.e. when there is no voltage on the solar panel). If you have voltage across the controlle …
- 14.2k
1
vote
Can I put a PV panel on my roof and run wires into a room to a power resistor to generate heat?
The short answer is that electricity is not a particularly cost-effective way of generating heat, and solar panels are not a particularly cost-effective way of generating electricity, so this is not r …
- 14.2k