PG&E Brings Online 2 MWh Tesla Powerpack Substation

FEB 25 2017 BY MARK KANE 11

Earlier this month, the Pacific Gas and Electric Co. launched its Tesla energy storage system at substation in Browns Valley (Yuba County), in California.

The one used by PG&E is smaller unit relatively speaking – 2 MWh of energy and 0.5 MW of power (for up to four hours), consisting of 22 Powerpacks.


The goal of this particular installation is to charge batteries at off peak hours and then return that electricity during peak demand times.

Another joint project between Tesla and PG&E utilizes decentralized Powerwalls for energy storage:

“PG&E and Tesla, for example, are also collaborating on a pilot project that uses Powerwall batteries in homes and businesses in the Bay Area. The amount of energy those scattered batteries can store will be equal to the amount stored at the Browns Valley substation, Della Penna said. PG&E will be able to study how both setups — one centralized, the other diffuse — affect the grid.

“They’re each with their own challenges and opportunities,” he said. “We’ve structured it so we’ll have a lot of really good learning here.””

source: SFGATE

Categories: ESS, Tesla

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11 Comments on "PG&E Brings Online 2 MWh Tesla Powerpack Substation"

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the use of powerwall systems that sit behind the meter to feed power into the grid sounds like what they are doing in vermont. this is a great idea because it can help to improve the economics of residential behind-the-meter energy storage.

Interesting article, but why no love for the SDG&E installation of 120MWh (4hrs @ 30MW), built by AES?

I saw the AES presser about two weeks ago and have been patiently awaiting news of the world’s largest battery storage system just down the road from where most of your staff and contributors live and work.

Is it because the cell modules don’t come from Nevada?

Yeah, I guess they covered this because of the Tesla connection. Otherwise it doesn’t really relate to EVs at all.

Instead of being passive-aggressive, why not just send them the tip two weeks ago?

*rolls eyes*

Hey, I resent that. I’m actively aggressive.

Eduardo Pelegri-Llopart

What’s the best way to send tips to the InsideEVs staff?

There is a contact/email on the about page

Eduardo Pelegri-Llopart

Thanks, Jay!

Eduardo Pelegri-Llopart

Personally, I’d love to see more reporting on Solar and other Distributed Energy Resources, including Behind-the-Meter, In Front of the Meter batteries and micro-grids.

Although I know this is not the core of InsideEVs…

They should study a 3rd case, that has both local and regional storage in a community of all solar homes with powerwalls, combined with a substation that can store peak power in a PowerWall. One day many utilities will have this situation: some days, too many houses will pour too much residential solar into the grid at noon, so they should learn how to buffer and store it now.

M3 reserved - IONIC or Bolt too?

There’s a fair amount of crossover of Solar with EVs as it simply makes economical sense.

If there were a forum format to InsideEVs, it would make sense to have a place for PV discussions — especially ones like this and more substantial Vehicle to Home (V2H) discussions since we all have a built in powerwall that sits in the garage waiting for the evening to charge when we could be using it during the peak evening hours of use that a powerwall does.

We already have the ‘duckbill’ phenom with the amount of PV on the grid and SDGE/PGE need to smooth out the lines and that’s what these powerpacks accomplish on a larger scale.

We are routinely getting OHMHour alerts between 6-8pm because of this very reason.

I would love to see the car industry push V2H, but it’s not in their best interests since they could simply sell Powerwalls (hence Elon not the true Ecoguy, but merely an engineer with a very good businessmind in disruptive technology).