Stem is Transforming the Grid
As the first public pure play smart energy storage company, Stem delivers and operates battery storage solutions that maximize renewable energy generation and help build a cleaner, more resilient grid. Our customers include Fortune 500 companies, project developers, utilities and independent power producers. Stem’s market-leading Athena software helps lower energy costs and solve renewable intermittency across the world’s largest network of distributed energy storage systems.
Stem trades as “STEM” on the New York Stock Exchange.
Best-in-class Software
Athena is the most utilized, validated, and successful DER optimization software in the world. Trained on tens of millions of system runtime hours across 40-plus utility territories, Athena enables 10-30% energy bill savings for businesses and 10-30% increases in unlevered IRRs for asset owners and IPPs.
Unparalleled Experience
Stem is a global pioneer in energy storage. Founded in 2009, our footprint now spans internationally with more than 75 permitting jurisdictions. Through the Stem Partner Network, we support hundreds of channel partners in deploying both front of meter and behind the meter solar plus storage and standalone storage systems.
Exceptional Service
Above all, Stem is committed to customer success. This shows in everything we do, from launching the Stem Partner Network and Stem University to publishing thought leadership to support the clean energy transition. It’s also reflected in our structure, with expert Stem teams dedicated to designing, onboarding, and supporting successful systems.
Offering a Leading Training Program for Energy Storage
Stem University is a curriculum developed by Stem to help project developers, solar EPCs, IPPs, asset owners, and other industry partners learn how to sell, model, and deploy energy storage projects. Stem partners get exclusive access to the training materials and supporting resources.
Stem by the
Numbers
~1.4 GWh
Across 950 sites operating
or contracted
or contracted
75+
Permitting jurisdictions
across 260+ cities
across 260+ cities
40+
Utility partners
83,000+
Grid services site dispatches
385+
Customers
Our Mission
Stem builds and operates the largest digitally connected energy storage network for our customers. Our world-class AI platform optimizes the value of our customers’ energy assets and facilitates their participation in energy markets, yielding economic and resilience benefits while accelerating renewable adoption.
Our Values
Diversity
Attract and retain diverse talent
Inclusion
Everybody welcome, always
Integrity
In everything we do
One Team
Success through collaboration
Innovation
Deliver the most compelling solutions
Customer-centricity
Enable customer value
Execution
Exceed commitments
Memberships
