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Re:California grid set record of 97% renewable power on April 3 by danans on Wednesday April 20, 2022 @06:02PM (#31103641)
It depends on a whole lot of factors. In a sunny place like CA with good solar incentive programs, assuming good southern to southwestern exposure, they are cash positive after about 6 years [1]. In Wisconsin, 11 years [2]. In Washington State, 15 years [3]

1. https://www.energysage.com/solar-panels/ca/#:~:text=For%20Ca....

2. https://www.energysage.com/solar-panels/wi/#:~:text=In%20Wis....

3. https://www.energysage.com/solar-panels/wa/#:~:text=In%20Was....

Re:California grid set record of 97% renewable power on April 3 by sib on Wednesday April 20, 2022 @06:53PM (#31104099)
Yeah, so far, with the rooftop system we put in about 1.5 years ago (Los Angeles), we are tracking to ~5.5 year payback period, so this feels right.
Re:California grid set record of 97% renewable power on April 3 by pie42000 on Wednesday April 20, 2022 @09:10PM (#31105021)
Guaranteed 15%+ ROI. Really makes you wonder why more people aren't investing in solar
Re:California grid set record of 97% renewable power on April 3 by brianwawok on Wednesday April 20, 2022 @10:09PM (#31105352)
At what state? It’s more like 15-20 year break even by me; and I can’t sell power back to the grid.
Re:California grid set record of 97% renewable power on April 3 by nightski on Wednesday April 20, 2022 @09:20PM (#31105077)
Wow is electricity really that expensive in CA? Our total expenditure on electricity over 20 years is around 20k.

But in CA that site says that their net 20 year savings using solar is 44k-60k. That's insane. Their savings alone is 3 times the cost of our entire electric bill...

Re:California grid set record of 97% renewable power on April 3 by danans on Thursday April 21, 2022 @12:16AM (#31105993)
> Wow is electricity really that expensive in CA? Our total expenditure on electricity over 20 years is around 20k.

Electricity in CA currently averages around 28c/kWh. Your total expenditure depends on a lot of things, including the size of your home and your loads. The average CA home probably spends around $2000/year on electricity, but that varies a lot based on location and lifestyle.

> But in CA that site says that their net 20 year savings using solar is 44k-60k. That's insane. Their savings alone is 3 times the cost of our entire electric bill...

That figure probably assumes increasing electricity prices over the 20 years, which by and large has held true due to both inflation and increasing wildfire liability.

Re:California grid set record of 97% renewable power on April 3 by nightski on Thursday April 21, 2022 @08:59AM (#31108767)
That explains it then, looking at our past few bills it comes out to ~$0.13/kWh. So yeah, we are less than half the average price in CA. Crazy. That would really change the dynamics of how profitable solar is. I've been wanting to get solar myself.

In reality our rate is Basic - $23.15 + All kWh @ $.089. So it would be even cheaper if we used more on a per kWh basis.