Search Results

Presumably the 20A fuse is in the output line. Since the PWM converts the 24V (nominal - usually quite a bit higher in practice) 8A down to suitable charging voltage for a 12V (nominal - 12.5-14.5 or …

"Average hours" on "Average roof" have no particular bearing on a specific roof located in a specific place. Specific places have specific weather patterns, which do have local averages that can be …

Skip it, seriously. I don't know what your motivation for this is, but you need to learn just a wee tad more before you bite it off. If it's (sounds like not) a remote-off-grid solar powered compute …

First, you need to verify that the two things are related. A bad phone line can make a noise with no PV system. If the noise is only with the answering system, it could be a defective answering system …

It is possible, even likely, that you may get more times of 3.2KW output (and thus, greater total output for a month) on suboptimal days with 410W panels than you would with 330W panels, but it's diff …

I spent way too long thinking I was going off-grid and then didn't, as the system cost to do what I needed and the grid connection cost crossed paths when the power company had a slow-down in new conn …

Entirely apart from the high cost of electric resistance heat, (that is, regardless of heat source) a 1969 house is almost certainly going to benefit from insulation upgrades and the boring best bang- …

I can't imagine why it wouldn't be - I have "double that" and it's bog-standard (Class 320 [400A, since 400A times 80% for continuous is 320A, and that's how meters are rated] meter feeding 2 200A pan …

Utterly normal. If you want to avoid it you could attach a resistor in series for a minute before connecting directly. By the way, most UPSes are terrible .vs. a "real" inverter, IME - since you appea …

Pick the low-hanging fruit. For the vast majority of homes, improving insulation and airsealing (caulking cracks, foaming gaps, etc.) will make the largest impact on both operating cost and pollution …

In my limited understanding (I ended up not putting in an off-grid system but did a lot of research first) odds are excellent that they will see the effect (voltage spike, or drop, likely frequency bo …

Works (while the sun is shining), but is a very expensive option and not overly efficient. Solar PV panels of a remotely affordable price are about 10% efficient in terms of converting sunlight to e …

I was headed this way until about 2009. In the most modern and expensive setups you might have all the devices communicating and coordinating. In most, each one has its charging parameters that it's t …

Gosh - a buck a therm is "expensive gas rates" - if I could get it (I can't and never expect to) it's more like a buck and a half...year round. So, you're using 1 million to 1.3 million BTUs/day - if …

There's no magic here. Plenty of engineering, though. Yes, the inverter output needs to be greater than your peak load. Not only that, your battery bank size needs to be adequate that the peak load is …