0
votes
1answer
135 views

Home made powered foundation vents? Computer fans and solar power?

So I have a bit of a moisture issue in my crawl space. I've considered closing up the crawl space completely but I think that sounds like to much work and this idea below sounds more fun. I was going ...
1
vote
1answer
72 views

How can I calculate the number of solar panels required to power a specific load? [closed]

I recently purchased a home in Maricopa AZ. With that said, I'd like for it to be most efficient. It has a forced air system for heat and cooling. I don't know the size of the cooling unit. How does ...
1
vote
1answer
445 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 ...
10
votes
6answers
9k views

How should I go about installing a 12 volt DC residential circuit?

I have a couple deep cycle batteries that trickle charge from a solar panel, for emergency use. Right now the only way I get useful power from them is to use a 12VDC -> 120VAC inverter, e.g. the type ...
0
votes
1answer
85 views

Are solar panel films for windows ready for the end users?

I read about a new solar-panel technology, based on a photo-sensible film, which may be applied directly on to glass. This will definitely help in the versatility and in the ease of installation.. ...
3
votes
1answer
1k views

Does the specific gravity of a lead-acid battery indicate degradation?

Let say I have a battery that is a few years old. When it was new, the specific gravity was indicating 1.265 when full, and it lasted fairly long. If I do an equalization charge, for the same ...
2
votes
1answer
259 views

Fuse replacement in Xantrex solar charge controller

I have a Xantrex XW-MPPT60-150 solar charge controller. The moment came where I need to replace the fuse that protects the charger. The problem is that I need to replace it with Littlefuse KLKD 1 ...
3
votes
2answers
818 views

What are some tips for deep cycle battery maintenance for an offgrid solar system?

I have an off grid solar system, with an 240AH 24v deep cycle battery, and the system (and all of the components in it) is a year and a half old. i have several questions and i hope that some one ...