Quote:
Originally Posted by lapka
I somehow don't really understand it.
You have a generator, even two. Right? Which kind? Is it something where you burn oil and electricity is produced? This generator outputs more that you need? Right? How do you know if you don't know how much you need? And on top you have a solar panel? Right?
What for do you need a battery if you can any time switch the generator on?
Battery makes only sense if you have kind of not so predictable power generator like solar or wind. And I have to+1 to this thought "try to use whatever you have on electricity as direct as possible and not through the battery".
And do your numbers. It simplifies the decision process significantly.
Well, first off I hope I haven't given the impression I've got all this figured out. I definitely don't.
Having a battery means I don't have to run the generator all the time, any time I need lights or whatever. Turning on a generator to run lights at night would be overkill. And noisy. And would burn more gas. And since it does generate more power than I need, I can run a generator, use the energy, while also charging a battery for later use. Typically I use battery power at night.
This guy is fuel efficient and not particularly loud. But there are some things it wont really run, like power tools that require more juice, a dehumidifier once in a while on nasty summer days, or even a printer. But it will run the television, a fan, lights, computers, and charge the battery, at the same time.
The second generator is a slightly smaller version of
this. Noisy, inefficient and overkill for most things I need. Basically a backup.
I don't use the battery when the generator is on. But there are plenty of times (nighttime) when running the generator isn't ideal.
As for solar, the two panels I have are very small and don't really get the job done. Fixing that would be its own separate beast.
What has happened, is that I didn't really understand the ideal way to use the battery, and for the last couple of years would run it down after a partial charge. The advice here is helping me figure out how to ideally utilize it.
I'm certainly open to suggestions, but at this point the equipment I describe here is what I've got. The battery setup was pricey, and if I can utilize it better with a new battery in the box, then I can't see a reason to swap the system since there is so much invested already.
You're right about running the numbers, but the amount of energy I need from the battery is really fairly small. Mostly we're talking lighting at night. So far it seems like the solution is running the generator a bit more, and then using the battery when it is fully charged, but only using the top 50%, and then switchingh back to the generator. That could mean running the generator for a day or so, then switching to battery for a day or so.
I appreciate all the ideas and questions. While what I'm doing works for me, the battery crapping out just means I need to make some changes to extend the life of the next one. That's my thinking, anyway.