zanydroid
Solar Wizard
(removed, non helpful to thread)
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You use the generator for load reduction like a UPS system can be used?I've done the numbers a lot lately for both arbitrage (in Northern California) and battery backup.
I'm never going to hit 6000 cycles for power outage proof before hitting calendar aging on the battery. Unless shit hits the fan. But the convenience vs generator maintenance would be nice. I may need the generator for 72 hours a year over 10 years.
My generator was $900, that's compared to like $2500 for a 5kWh server rack + cheapest AIO + Balance of system (not possible for non-UL9540 to replace a grid tie system in California, so you can't make the argument that I can consolidate the AIO with my existing inverter). Gas per power outage is $10 - 2 gallons, for the quality of life I've had lately. A 3% discount rate / opportunity cost on $1600 already pays for most of the gas.
(removed, non helpful to thread)You use the generator for load reduction like a UPS system can be used?
I have 100% net metering based on time of use rates, with a tax of -$0.02/kWh for non-bypassable charges, so the possible payoff from load reduction via battery is not that good.
You don't say.Of course I don't use the generator for load reduction, that is a big loser.
Also load reduction with UPS with improperly listed hardware not approved for parallel operation with POCO adds its own risks.
Either from pissing off the POCO or adding extra stress on the loads that I have attached from transferring it on/off grid.
It's pointless to discuss this with you as you seem to be stuck on only one scenario.Properly listed hardware is >$0.70/kWh. Maybe like $1kWh. I don't know the exact $ b/c I want good ROI and that is not it, so as soon as I count up to $0.70/kWh up front it's a nope
Are you doing ok today? My apologies if I was off base.It's pointless to discuss this with you as you seem to be stuck on only one scenario.
With natural gas, I calculate my generator at about $.25 per kilowatt hour.With gasoline at $3/gal, my generator costs roughly $0.50 per kWh.
My expected cost over the expected lifespan of 6,000 cycles on my LFP bank is $0.023/Kwh
How is a generator cheaper long term?
How did you manage to do that? Do you live in one of those tiny homes?Nowadays, I can build a PV system for not much more money than a new and reliable Honda generator for the same load. Harbor Freight messes up the math on that, but still…
The solar UPS model can be used for load reduction daily.The generator scenario was for the random power outages. What is your LFP cost per kWh if you only use 30 cycles every couple of years? ($137/kWh)
Bought these cheap. 2 panels per rack.$122,400.00? Do they throw in a house with every purchase?
I am right now in the process of building a ground mount to use with 4 -200w panels. The price is under $75 for materials. Course I have no permits, building department, planning commissions, and any other folderow to have to put up with.