Stem Inc. (STEM) is a publicly traded Grid Software & VPPs company founded in 2009 and based in San Francisco, USA.
| Date | Stage | Amount | Valuation | Lead investors |
|---|---|---|---|---|
| Apr 28, 2021 | IPO | $608M | $1.4B | — |

California advances multiple distributed energy bills including community solar, balcony solar, and virtual power plant legislation through key fiscal committees.

Virtual power plants scaled via home batteries and smart thermostats are easing grid strain from AI data center demand and climate extremes.

Europe's electrochemical storage capacity reaches 102.7 GW in 2025, surpassing nuclear generation for the first time.

AI data center workloads are driving demand for battery storage to manage variable power consumption, with 170 GW of global potential identified.
An AI-driven energy storage management software platform that optimizes charge and discharge of distributed battery assets in real time to maximize revenue from energy markets and minimize demand charges for commercial and industrial customers. Athena includes asset performance management, energy storage procurement, monitoring and optimization, market optimization, and solar monitoring modules. The platform manages over 2 GWh of storage assets globally and serves utility, C&I, and project developer customers.
A solar monitoring and performance management SaaS product that tracks production, alerts on anomalies, and generates automated compliance reporting for solar portfolios. Targeted at asset owners, EPCs, and independent power producers managing large distributed solar fleets. Integrated with Athena for combined solar-plus-storage optimization, enabling operators to manage mixed renewable-plus-storage assets from a single platform.
1 patent on file, but none with both an extractable figure and an abstract on Google Patents yet.
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