Stem Inc grows revenue 39% in Q2, reduces EBITDA loss

August 7, 2023
LinkedIn
Twitter
Reddit
Facebook
Email

Energy storage system and services firm Stem Inc grew revenues to US$93 million in the second quarter of 2023, and reduced its EBITDA loss by 15% to US$8.5 milllion.

The California-based company grew revenues 39% year-on-year while nearly doubling (+88%) its contracted backlog to US$1.36 billion worth of revenues, after bookings of US$236.4 million (+5%).

Stem Inc increased its GAAP gross margin and non-GAAP gross margin by a single percentage point each to 13% an 18% respectively (year-on-year), while narrowing its EBITDA loss from US$11.5 million in Q2 2022 to US$8.5 million in the most recent.

Stem Inc deploys battery energy storage system (BESS) projects while also managing renewable energy plants with its AI-powered Athena software. It is mainly known for behind-the-meter (BTM) commercial and industrial (C&I) projects but has expanded into front-of-the-meter (FTM) too.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

Assets under management (AUM) for the software platform grew to 3.8GWh of energy storage and 26GW of solar, up 9% and 2% respectively quarter-on-quarter, though the solar GW number is down 20% year-on-year (from 32.1GW).

The company said it will post positive EBITDA during 2023. For the full year, it reaffirmed its guidance of revenues of US$550-650 million, an adjusted EBITDA loss of US$5-35 million and bookings of US$1.4-1.6 billion.

Highlights included a 313MWh BESS order from energy solutions provider Ameresco, which Ameresco announced a month ago but didn’t reveal the technology provider. On the services side, Stem won a contract to optimise Hungary’s largest solar power plant, a 304MW system in Mezőcsát, covered by our sister site PV Tech.

The company is one of several energy storage firms to have listed through special purpose acquisition company (SPAC) transactions in the last few years, securing an NYSE listing in April 2021. Others to have done the same include zinc battery manufacturer Eos, iron flow battery company ESS Inc and Energy Vault, the company which is known for gravity energy storage but has since expanded to other technologies.

24 March 2026
Dallas, Texas
The Energy Storage Summit USA is the only place where you are guaranteed to meet all the most important investors, developers, IPPs, RTOs and ISOs, policymakers, utilities, energy buyers, service providers, consultancies and technology providers in one room, to ensure that your deals get done as efficiently as possible. Book your ticket today to join us in 2026!

Read Next

January 30, 2026
US battery energy storage system (BESS) developer-operator Jupiter Power has closed a US$500 million senior secured green revolving loan and letter of credit facility to support the advancement of its project pipeline across the US.
January 30, 2026
Redwood Energy announced the final closing of its Series E financing round, bringing the total raise to US$425 million.
Premium
January 29, 2026
“We see energy storage as an opportunity for (data centres) to reduce their impact on the grid”, said Patrick Hughes, Senior VP of Operations and Strategy at NEMA.
January 29, 2026
Long-duration energy storage (LDES) developer-operator Hydrostor has announced a strategic technology and equity agreement with energy infrastructure equipment manufacturer Baker Hughes.
January 28, 2026
US sodium-ion (Na-ion) battery technology company Unigrid has begun international shipments of its proprietary sodium cobalt oxide (NCO) cathode cells at commercial volume.