Simplify Battery Storage Deployment and Operations with Expert Support, Now Supported by PowerTrack Optimizer, Formerly Athena
From Design to Operations, Optimized for You
Stem’s Managed Services provide a comprehensive solution for customers looking to efficiently design, procure, commission, operate, and optimize energy storage and hybrid systems. By combining deep industry experience with seamless third-party integration, we help customers maximize the performance, reliability, and long-term value of their storage assets.
Operator in North America
Delivering end-to-end Energy Storage Solutions
Stem delivers complete, fully integrated energy storage solutions by combining expert system design, equipment procurement, hardware-software integration, project management, and post-commissioning operations. By managing projects end-to-end, we simplify complex deployments, reduce risk, and accelerate timelines so you capture value sooner. Asset owners gain a trusted partner who ensures reliable performance today, while building a strong foundation for long-term success.
Providing Revenue Insights That Drive Investment Decisions
Stem’s Revenue Modeling service transforms complex energy market dynamics into strategic advantages that maximize your BESS project’s financial performance throughout its lifecycle. Using insights gained from operating over 800 sites globally, our team provides comprehensive market intelligence and strategic advisory services. By forecasting revenue across multiple value streams and stress-testing assumptions to deliver financial clarity, we help developers and investors make informed decisions from early-stage development through long-term operations, enabling them to build economically viable projects.
Powering Seamless Project Commissioning
Stem provides end-to-end project deployment services that eliminate multi-vendor complexity and get you to commercial operation faster. As your single delivery owner, we manage everything from interconnection to commissioning, reducing field costs, minimizing schedule risk, and ensuring your project is ready to perform from day one.
Stem’s Remote Operating Center (ROC) services deliver 24/7 monitoring, real-time diagnostics, and proactive maintenance coordination to ensure safe, reliable, and cost-efficient energy storage operations. With over a decade of experience managing systems across all major OEMs, our experts reduce operational risk, streamline field service, protect warranties, and optimize performance, helping asset owners maximize uptime and long-term system value.
Maximizing Returns Through Expert Energy Optimization
Stem maximizes the value of battery storage by managing daily operations and participation across wholesale markets, utility programs, demand response, tariffs and coincident peak value streams. Forecasting, enrollment, real-time dispatch, financial tracking, and settlement are all seamlessly coordinated to ensure efficient performance. By combining storage operations management with expertise and more than a decade of experience, Stem helps assets deliver multiple value streams with reliable performance and measurable returns.
“Our ability to maximize energy production and provide a return on investment starts with understanding what’s happening across all of our sites… PowerTrack serves as our eyes and ears throughout our portfolio to provide us with that clarity.”
Ben Hunter
Vice President, Madison Energy Investments
Daniel Senneff
Co-Founder & Managing Partner, Regis Energy Partners
David Arfin
CEO, NineDot Energy





Comprised of intelligent software tools that power Stem’s Managed Services, purpose-built to optimize clean energy assets. By integrating forecasting, dispatch, and financial optimization, PowerTrack Optimizer streamlines operations and ensures systems deliver reliable performance and lasting value.