Sonoma Clean Power is partnering with a provider of smart batteries to offer large commercial and industrial businesses the chance to save as much as 50 percent on their monthly energy bills.
The partnership with Millbrae-based Stem, announced Tuesday, will allow as many as 150 large business in Sonoma and Mendocino counties to install software-controlled batteries that provide power during peak demand times when electricity is most costly, account executive Nate Kinsey said.
Sonoma Clean Power, a public electricity provider serving about 220,000 customers in Sonoma and Mendocino counties, hopes at least 60 of those large companies will use the battery packs, which recharge at low-demand energy times.
The power company will conduct outreach to these businesses — considered “super users” of energy — to help them understand the potential savings. The process could take up to 13 months from initial contact to installation, Kinsey said.
Businesses pay a monthly service fee for the batteries, which are installed and owned by Stem and connected to the PG&E grid, said Sonoma Clean Power Program Manager Nelson Lomeli. Each customer can expect annual savings between $20,000 and $70,000, he said.
Stem guarantees those savings will be more than the cost of the unspecified monthly service fee, which it described as proprietary.
“This is really exciting — it’s another tool in the toolbox,” said Polly Shaw, Stem’s vice president of regulatory affairs and communications.