3 ms·
How many months / years would it take for this to generate $200 worth of electricity at some normal price for electricity in the US?
by izzydata 9y ago
How many months / years would it take for this to generate $200 worth of electricity at some normal price for electricity in the US?
- ars 9y agoIt generates about 1kw per day. Worth say $0.15. So about 4 years, if you never have clouds. In the real world I'd probably double that to 8 years.
- izzydata 9y agoOh.. so I guess it wouldn't be worth it unless you are away from the grid.
- ars 9y agoKeep in mind part of the cost is the battery, and you would not need that if you are grid connected. On the other hand the inverter would be more expensive, since you can't just use any old cheap inverter, but you need one that is true sine wave (cheap ones are filtered square wave), and able to phase and voltage match to the grid.
- sushid 9y agoPeople said this on the previous DIY solar thread, but I wasn't sure where to exactly look for one. Could you link me to one that is a true sine wave? And how would I verify that this works for my electricity provider (PG&E in San Francisco)?
- ars 9y agoSorry, I don't have any product suggestions. Google for "Grid-tie inverter". And don't forget true sine wave is not enough, it must also voltage, and even more important, phase, match. You don't need anything specific to any particular electricity provider.