I was just talking about the largest li-ion battery in the world a few weeks ago. And already this record is to be broken by an even larger one, in California.
For the past few months, Tesla and CEO Elon Musk have been teasing a giant battery project that would dwarf even the company’s 129 MWh Powerpack project in Australia.[Read more here]
Today, we learn that Tesla is working with PG&E on a massive battery system with a capacity of “up to 1.1 GWh” in California.
Pacific Gas and Electric Company (PG&E), one of the largest electric energy companies in the United States covering nearly 16 million people in Northern and Central California, submitted 4 new energy storage projects to the California Public Utilities Commission (CPUC) for approval today.
Three are third-party owned projects to be connected to PG&E’s grid, but the fourth one is “a proposed utility-owned 182.5 MW lithium-ion battery energy storage system (BESS) located within PG&E’s Moss Landing substation.”
Tesla would be providing the battery packs for the giant project, which would be able to output 182.5 MW of power for 4 hours, which represents 730 MWh of energy capacity or over 3,000 Tesla Powerpack 2s.
PG&E also has the option to increase the capacity to 6 hours for a total of 1.1 GWh.
Earlier this month, Tesla CTO JB Straubel announced that the company has deployed over 1 GWh of energy storage – a capacity that he says is “undeniably making an impact.”
If this new project is approved and deployed to its full potential, it would represent more energy capacity in a single project than what Tesla Energy deployed since its inception 3 years ago.
Elon Musk recently said that Tesla battery sales each year would be equal to the sum total of all previous years--at least for the next few years. Apparently battery sales are profitable. That's pretty good news for the company--and for global warming. 182.5 MW (the output of the 730 MWh of storage per hour over 4 hours) is equivalent to 0.7% of California's total electricity generated. However it is equivalent to about 5% of PG&E's renewables generation output. And that's just this battery--the utility has others, and this was just one of the four proposed energy storage options to the regulator.