AI energy storage pioneer Stem Inc to go publicly-listed

LinkedIn
Twitter
Reddit
Facebook
Email
Stem Inc said its software platform Athena has proven successful in markets including the US, Canada and Japan. Image: Stem Inc.

Stem Inc is set to be publicly-listed and expand its global reach through a deal worth as much as US$608 million, agreed with special purpose acquisition company Star Peak Energy Transition Corp.

The US-headquartered provider of battery energy storage systems driven by artificial intelligence (AI) which optimises their ability to capture market opportunities said this morning that a definitive agreement for a business combination has been reached with Star Peak.

This article requires Premium SubscriptionBasic (FREE) Subscription

Enjoy 12 months of exclusive analysis

  • Regular insight and analysis of the industry’s biggest developments
  • In-depth interviews with the industry’s leading figures
  • Annual digital subscription to the PV Tech Power journal
  • Discounts on Solar Media’s portfolio of events, in-person and virtual

Or continue reading this article for free

Star Peak is already publicly traded and the combined business will list on the New York Stock Exchange under the ticker ‘STEM’ once the transaction is closed. Stem Inc CEO John Carrington will lead it.

Stem Inc has largely played in the commercial and industrial (C&I) segment of the energy storage market, creating connected virtual power plants (VPPs) through batteries at office buildings and industrial sites, although it has also diversified into areas including utility solar-plus-storage.

From using stored renewable energy to reduce peak demand and lower energy costs for C&I customers and using their systems to provide grid services, Stem Inc has been one of the primary movers in the energy storage-as-a-service market. More recently the company has been working on projects with stakeholders including utilities, developers, EPCs, independent power producers (IPPs) as well as businesses, commissioning more than 600MWh of storage capacity since 2014. Earlier this year, the company won out in a Request for Proposal (RfP) to manage 345MWh of energy storage in California utility SCE’s service area.

The company’s intelligence energy services software platform, called Athena, has already been deployed and “proven” in Canada and Japan as well as in Stem’s US homeland, CEO Carrington said in a press release. Athena runs or operates around 1GWh of storage across more than 900 systems. According to Carrington, the merger and funds the transaction gives the company access to will be used to “enable expansion into several additional global markets”.

“This transaction is transformative for us and we expect it to significantly accelerate our growth.

“Our systems deliver value to our customers by lowering energy costs, enhancing renewable returns, and meeting ESG and sustainability goals, while increasing grid reliability,” Carrington said, adding that the combined company’s balance sheet will “empower Stem to expand its technological leadership and geographic reach”.

The combined company has been valued at a US$1.35 billion pro forma equity value, while the transaction is expected to provide US$608 million in gross proceeds to the company. Existing and new investors include investment management companies BlackRock, Electron Capital Partners and Van Eck Associates Corporation, asset management firm Adage Capital Management and investment advisor Senator Investment Group.

Stem Inc and Star Peak Boards of Directors have unanimously approved the deal, which remains subject to approval from stockholders and other closing conditions including regulatory approvals. The deal is expected to close in Q1 2021, Stem Inc said.

The recognition of the value of software in the energy storage market was discussed at the recent Solar and Storage Finance USA event hosted by our publisher Solar Media. The acquisition of Advanced Microgrid Solutions (AMS), another energy storage company largely focused on software, by technology provider Fluence, took place earlier this year. AMS sold off its C&I and behind-the-meter VPP business to Stem Inc shortly before that acquisition.

Read Next

June 11, 2025
The New South Wales government has stacked the incentives available for a solar and home battery energy storage system (BESS) should it connect to a virtual power plant (VPP).
June 10, 2025
Australia’s Victoria government has fast-tracked a 400MWh battery energy storage system (BESS) and 500MW solar-plus-storage project via its Development Facilitation Program (DFP).
June 6, 2025
Wisconsin’s first large-scale battery energy storage system (BESS) project, the 110MW Paris Solar-Battery Park, has come online.
June 6, 2025
Envision Energy has inked a strategic partnership with SUN Terra to collaborate on energy storage in Southeast Asia, India and Australia.
June 5, 2025
Asset manager MEAG has acquired a 92.5MW/231MWh BESS in Germany, fully merchant-financed, which optimiser Entrix will trade in the electricity market.

Most Popular

Email Newsletter