Questions tagged [solar-panels]

For questions about photovoltaic panels or photovoltaic-based solar power systems.

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4
votes
2answers
2k views

Half of my lights and oulets are not working after heavy winds?

We have solar panels and mains power. Last night was very windy; we heard quite a few bangs from outside and thought it might be the wires getting knocked together. Woke up this morning and we have ...
80
votes
14answers
9k views

Are solar panels cost-effective?

Environmental issues aside, I'd like to know whether solar panels are worth it from a monetary standpoint? How long before payoff occurs? Pros & Cons? Is technology moving too fast, e.g. should I ...
1
vote
1answer
129 views

How should I connect my solar panels to each controllers for optimal performance (series or parallel) without buying new charge controlllers?

I have 4 355w solar panels and 3 315 w solar panels. I have a 40 amp mppt and a 30 amp mppt charge controllers with 100v Max pv voltage. The distance solar panels to charge controllers is around 15 ...
20
votes
11answers
24k views

How do you protect solar panels from hail?

Saw another question on solar panels and it reminded me of one big thing that always made me hesitant to consider them. We get several hail storms each year and having an expensive glass covered(?) ...
2
votes
3answers
2k views

How can i set up a Solar Panel to charge a 12v DC car battery and power a Raspberry Pi?

I've pulled together a few spare parts that i've had laying about for ages now and I finally have a bit of time to try do something with them. I've got a solar panel which puts out ~22vDC @ ~2Amps ...
4
votes
4answers
2k views

Solar power backup for router

I want to use solar panels to create a power backup for a router(9V, 1A). I'm aware I'll require solar panels and batteries but am not sure how to choose suitable ones. Please help suggest me on ...
2
votes
2answers
143 views

Storing comsumable dry goods in your car in the summer? [closed]

I live in South Florida where the summer sun has no mercy. I drive a new van and I've taken steps to keep the inside cooler during the day. I live in the van for weeks at a time and need to store ...