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A comment on Giant batteries and cheap solar power are shoving fossil fuels off the grid. Parent comment

Re:Giant batteries and cheap solar power are shoving fossil ... by nimish on Friday July 12, 2019 @05:05PM (#20424503)
Because the powerwall allows you to "buy" power at the opportunity cost of $0.02/kWh vs paying up to $0.32/kWh ? If you end up generating a lot of excess solar using a lot of grid power at peak times, it could pay for itself.

But of course, you need to do the calculation for your situation.

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Re:Giant batteries and cheap solar power are shoving fossil ... by boringg on Friday July 12, 2019 @07:31PM (#20425457)
I don't think powerwall has that functionality. At least original powerwalls only provided backup power. From a C&I perspective this is one of the sources of revenue for batteries - however there are many different ways for electricity charges to be passed on to customers. It isn't only kWh.
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Re:Giant batteries and cheap solar power are shoving fossil ... by benj111 on Saturday July 13, 2019 @03:14AM (#20426928)
"I don't think powerwall has that functionality"

From wikipedia

"When originally announced in 2015, two models of Powerwall were planned: 10 kWh capacity for backup applications and 7 kWh capacity for daily cycle applications"

https://en.m.wikipedia.org/wiki/Tesla_Powerwall

I take it the daily cycle applications include that functionality.

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