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What does10 KW of storage or less mean on PGE Interconnect form?

sorka

Well-Known Member
Feb 28, 2015
7,618
5,645
Merced, CA
Screen Shot 2020-11-12 at 11.17.20 AM.png


Does this mean it only applies to storage of 10 kWh or less or storage that can only output a maximum of 10 KW continuously? Or does it not even apply since it says "facilities"? I have 39.5 kWh of storage that can max out at 21 KW (briefly) and wonder if I got the wrong document to sign?
 

gpez

Member
Apr 25, 2019
610
486
USA
View attachment 607730

Does this mean it only applies to storage of 10 kWh or less or storage that can only output a maximum of 10 KW continuously? Or does it not even apply since it says "facilities"? I have 39.5 kWh of storage that can max out at 21 KW (briefly) and wonder if I got the wrong document to sign?

If it is supposed to be 10 kWh of storage, which I suspect is likely the case, that does not inspire confidence in your utility provider that they can't even get their units right... :)
 
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wwhitney

Member
Nov 2, 2017
748
905
Berkeley, CA
Does this mean it only applies to storage of 10 kWh or less or storage that can only output a maximum of 10 KW continuously? Or does it not even apply since it says "facilities"? I have 39.5 kWh of storage that can max out at 21 KW (briefly) and wonder if I got the wrong document to sign?
It means 10 kW of continuous output power. Since you have 3 Powerwalls, that's 15 kW of continuous output power, so that is the wrong interconnection agreement.

The power company cares about output power because in theory you could dump that much power into their grid, so it potentially affects their transformer sizing.

Cheers, Wayne
 
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gpez

Member
Apr 25, 2019
610
486
USA
It means 10 kW of continuous output power. Since you have 3 Powerwalls, that's 15 kW of continuous output power, so that is the wrong interconnection agreement.

The power company cares about output power because in theory you could dump that much power into their grid, so it potentially affects their transformer sizing.

Cheers, Wayne

That makes way more sense.
 

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