News for hackers. Stuff that matters.

A comment on Solar Panels Reduced My Electric Bill by $2,677 in 2022. Parent comment

Re:Solar Panels Reduced My Electric Bill by $2,677 in 2022 by akira2501 on Wednesday January 04, 2023 @12:45AM (#34242442)
There are a few different forms and a few different rules surrounding it. I can probably assume what he means, but a more direct comparison would obviate any of these factors.

Right.. but that's not his total cost, that's his total savings. So, with those factors; which make sense for New England, he's got a 7kW system getting light for about 3 hours a day on average to net that 775kWh to earn the $233 savings in a month. Would that be right?

[ Parent | on HN ]
Re:Solar Panels Reduced My Electric Bill by $2,677 in 2022 by Kirby64 on Friday January 13, 2023 @11:25AM (#34370006)
If the system was totally efficient, then yes, but the 7kW nameplate number is peak efficiency... so most likely it's some averaged number (say, 4-5kW?) that is across a longer period of time.
[ Parent | on HN ]