3 ms·
As you are a numbers guy, I’m sure you can whip up such a spreadsheet in half an hour. It isn’t that hard. NREL has a calculator you can use to estimate annual
by ip26 6y ago
As you are a numbers guy, I’m sure you can whip up such a spreadsheet in half an hour. It isn’t that hard. NREL has a calculator you can use to estimate annual production, and it’s up to you to figure out what your utility’s rules on net metering are. South is the best aspect, West is next best, but this can be affected by local climate (e.g. frequent afternoon clouds). I think NREL factors climate.
If the net metering rules are favorable, skip the battery, forget entirely about your own consumption patterns, and just install as much as you can. The job is almost half fixed costs, so a bigger array pays back much faster.
- jay_kyburz 6y agoThe hard part in out house is estimating how much power we'll use in the middle of the day, and after we return to the office after covid. The feed-in tariffs here in my state are effectively nothing. I'd like to wait for battery prices to come down so I can go completely off grid. (though this may not happen with cars gobbling up all the batteries for a long time to come) I think as electricity gets cheaper and cheaper, connection costs will get more and more expensive, so being able to disconnect will be a significant saving. Right now we are working to remove all gas appliances here at home so we can disconnect from the Gas entirely.
- bluGill 6y agoIf you have lived there for a few years you can look at your bills from years past and be close enough. You will never be more than close enough anyway