Stem Expands its European Operations as Demand Surges for Solar, Storage and Hybrid Energy Solutions

Stem, Inc. (NYSE: STEM), a global leader reimagining technology to support the energy transition, today announced the expansion of its Berlin operations with a move to centralized and collaborative facilities. The new office underscores Stem’s commitment to advancing utility-scale solar, storage and hybrid solar-plus-storage projects across the EMEA region.

The enhanced 400-square-meter space nearly doubles workspace capacity, bringing Stem’s engineering, sales, and customer success teams closer to project developers and utility partners. The centrally located Berlin hub positions the team to address Europe’s most pressing technical challenges including hybrid solar-plus-storage integration, merchant market risk management, and optimization in negative pricing environments.

“This expansion underscores Stem’s commitment to embed engineering and customer expertise directly in Europe,” said Arun Narayanan, Chief Executive Officer of Stem. “Our partners are facing increasingly complex projects that demand proven execution, risk mitigation, and platform reliability. By expanding in Berlin, we’re strengthening local capabilities to deliver faster commissioning and the post-sales support that has become essential for successful solar and storage projects across the region and are well positioned for further growth across our regional teams.”

The Berlin hub is designed as Stem’s European competence center, centralizing teams with regional expertise focused on solving the most pressing challenges facing large-scale renewable projects today. By expanding technical depth and customer support in Berlin, Stem combines global expertise with local execution and service to help customers succeed in increasingly complex EMEA markets. Stem’s PowerTrack™ platform is already delivering results across multiple markets in Europe, demonstrating its ability to adapt to different regulatory and technical environments.

The expansion comes as Energy Management Systems have evolved into core infrastructure for project monetization and revenue assurance. Stem's newly launched PowerTrack Energy Management System (EMS), designed for solar, energy storage and hybrid solar-plus-storage control, requires the kind of local technical depth and rapid response capabilities that the expanded Berlin operations are already providing for customers in the region.

Stem’s strength in both technical execution and local market adaptation of renewable energy assets has proven to be a key deciding factor for European asset owners standardizing on a solution to ensure the seamless operation and optimal performance of energy portfolios. PowerTrack solutions are now deployed across multiple European markets, enabling asset owners to standardize operations, enhance grid compliance, and improve financial performance. Through optimizing multi-GW solar portfolios, deploying PowerTrack EMS for hybrid storage control, or delivering PowerTrack SCADA for critical grid operations, Stem’s engineering and software expertise – anchored in Berlin – supports reliable, data-driven clean energy operations at scale.

“Berlin’s central location, access to industry-leading experts, and connectivity to both established and emerging markets make it the ideal base for our EMEA operations,” said Matt Tappin, President of Software Products. “By expanding our presence here, we can deliver faster project commissioning, deeper customer support, and more effective collaboration with EPCs and O&M providers throughout the region. I am excited by the prospect of future growth with on the ground teams in adjacent territories.”

Stem’s European operations has commissioned more than 15 GW of solar projects. Globally, the company has deployed nearly 2 GWh of battery storage capacity across 55 countries, giving the Berlin team access to proven in-house expertise as large-scale storage projects gain traction across EMEA. For more information, visit stem.com.

About Stem

Stem (NYSE: STEM), is a global leader reimagining technology to support the energy transition. Turning complexity into clarity, and potential into performance.

Helping asset owners, operators and stakeholders benefit from the full value of their energy portfolio by enabling the intelligent development, deployment, and operation of clean energy assets. Stem’s integrated software suite, PowerTrack, is the industry-standard and best-in-class for asset monitoring, supported by professional and managed services, under one roof. Meant to tackle challenges as seamlessly as possible, Stem shows the information needed clearly and accurately and helps harness raw data to inform actionable insight. With global projects managed in 55 countries, customers have relied on Stem for nearly 20 years to maximize the value of their clean energy projects.

Driven by human and artificial intelligence – Stem is unlocking energy intelligence. Learn more at stem.com.

Forward-Looking Statements

This press release, as well as other statements we make, contains “forward-looking statements” within the meaning of the federal securities laws, which include any statements that are not historical facts. Such statements often contain words such as “expect,” “may,” “can,” “believe,” “predict,” “plan,” “potential,” “projected,” “projections,” “forecast,” “estimate,” “intend,” “anticipate,” “ambition,” “goal,” “target,” “think,” “should,” “could,” “would,” “will,” “hope,” “see,” “likely,” and other similar words. Forward-looking statements address matters that are, to varying degrees, uncertain, such as statements about our expansion in Berlin, the newly integrated PowerTrack suite and their expected benefit to customers, our business strategies and those of our customers; our ability to retain or upgrade current customers, and our ability to further penetrate existing markets or expand into new markets. Such forward-looking statements are subject to risks, uncertainties, and other factors that could cause actual results or outcomes to differ materially from those expressed or implied by such forward-looking statements, including but not limited to our inability to execute on, and achieve the expected benefits from our expansion in Berlin and the newly integrated PowerTrack suite, as well as our operational and strategic initiatives; including from our cost reduction, workforce reduction and restructuring efforts; our inability to successfully execute on our strategy; the effects of the One Big Beautiful Bill on our business and that of our customers; disruptions in sales, production, service or other business activities; general macroeconomic and business conditions in key regions of the world, including inflationary pressures, general economic slowdown or a recession, high interest rates, changes in monetary policy, changes in trade policies, including tariffs or other trade restrictions or the threat of such actions, and instability in financial institutions; the direct and indirect effects of widespread health emergencies on our workforce, operations, financial results and cash flows; geopolitical instability, such as the armed conflicts between Russia and Ukraine and in the Gaza Strip and nearby areas; the results of operations and financial condition of our customers; pricing pressures; severe weather and seasonal factors; our inability to continue to grow and manage our growth effectively; our inability to attract and retain qualified employees and key personnel; our inability to comply with, and the effect on our business of, evolving legal standards and regulations, including those concerning data protection, consumer privacy, sustainability, and evolving labor standards; risks relating to the development and performance of our software-enabled services; our inability to retain or upgrade current customers, further penetrate existing markets or expand into new markets; the risk that our business, financial condition and results of operations may be adversely affected by other political, economic, business and competitive factors; and other risks and uncertainties discussed in this release and in our most recent Forms 10-K, 10-Q and 8-K led with or furnished to the SEC. If one or more of these or other risks or uncertainties materialize (or the consequences of any such development changes), or should our underlying assumptions prove incorrect, our actual results or outcomes, or the timing of these results or outcomes, may vary materially from those reflected in our forward-looking statements. Forward-looking statements and other statements in this release regarding our environmental, social, and other sustainability plans and goals are not an indication that these statements are necessarily material to the Company, investors, or other stakeholders, or required to be disclosed in our filings under U.S. securities laws or any other laws or requirements applicable to the Company. In addition, historical, current, and forward-looking environmental, social, and sustainability-related statements may be based on standards for measuring progress that are still developing, internal controls and processes that continue to evolve, and assumptions that are subject to change in the future. Forward-looking statements in this press release are made as of the date of this release, and the Company disclaims any intention or obligation to update publicly or revise such forward-looking statements, whether as a result of new information, future events, or otherwise, except as required by law.

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