Powin Energy was a Portland, Oregon-based grid-scale battery energy storage system (BESS) integrator and software company that rose rapidly during the U.S. storage boom before filing for Chapter 7 bankruptcy and dissolving in 2024. At its peak, Powin had contracted a backlog of approximately 6 gigawatts of storage projects and had deployed over 3 gigawatts across the United States, Canada, Japan, and other international markets — making it one of the largest independent BESS integrators in the world.
Founded in 2012, Powin differentiated itself from competitors by developing proprietary battery management software — its Centipede battery operating system — rather than relying solely on third-party BMS platforms. This gave Powin greater control over system performance, safety, and warranty management, and was the basis for its pitch that it could deliver superior long-term performance compared to integrators using off-the-shelf software on commodity hardware.
Powin operated as a BESS integrator: it sourced lithium-ion battery cells and modules from manufacturers (primarily LG Energy Solution and other Korean and Chinese suppliers), integrated them into its own standardized stackable container format, deployed them at project sites, and provided long-term service and performance guarantees under multi-year contracts. This model is capital-light in the sense that Powin did not manufacture cells, but it exposed the company to significant supply chain and warranty risk.
The Centipede BOS (battery operating system) was the software layer managing cell-level monitoring, thermal management, state-of-charge balancing, and grid dispatch across Powin's deployed systems. Powin retained ongoing software licensing and service revenue from operating assets — a recurring revenue model intended to create value beyond the one-time project sale.
Powin's growth accelerated dramatically in 2020–2022, driven by the surge in utility-scale storage procurement as solar-plus-storage became cost-competitive across major U.S. markets. The company raised significant capital — including investment from Brookfield Asset Management — and expanded its backlog aggressively, signing contracts with major utilities and independent power producers. By 2022–2023 it was among the top BESS integrators in the U.S. by contracted backlog.
The company's collapse stemmed from a confluence of problems that proved fatal in combination. Supply chain disruptions — particularly around battery module availability and costs — caused project delays and cost overruns that eroded margins on fixed-price contracts. Warranty and performance issues on deployed systems created unexpected liabilities. The rapid scaling of the business outpaced its operational capacity to execute projects and manage a geographically dispersed installed base.
Powin also faced a structural vulnerability common to BESS integrators: thin margins on hardware, long-duration performance obligations, and exposure to battery degradation that was difficult to model accurately given the relative immaturity of large-scale lithium-ion storage at the time of contracting. When performance shortfalls and cost overruns materialized simultaneously across multiple projects, the company's cash position deteriorated rapidly, ultimately triggering the bankruptcy filing.
Powin's failure was one of the most significant collapses in the U.S. energy storage industry and sent shockwaves through the BESS market. Utilities and IPPs that had contracted Powin-supplied systems faced uncertainty about warranty coverage, software support, and long-term system performance for gigawatts of deployed and under-construction assets. The bankruptcy proceedings involved complex questions about the disposition of the Centipede software platform, ongoing service obligations, and project contracts mid-construction.
The collapse prompted a broader reassessment across the storage industry of counterparty risk in BESS procurement. Developers and offtakers began scrutinizing integrator balance sheets more carefully, imposing stronger parent guarantees and performance bonds, and in some cases shifting toward the larger integrated suppliers — Fluence, Tesla Energy, BYD — whose financial backing provided greater security. Powin's story became a cautionary tale about the risks of rapid scaling in capital-intensive infrastructure on thin margins with long-tailed warranty obligations.
This profile was compiled from publicly available information including:
Powin Energy press releases and corporate communications (archived).
U.S. Bankruptcy Court filings related to Powin Energy's Chapter 7 proceedings.
Industry reporting from Wood Mackenzie, BloombergNEF, and Energy Storage News on Powin's growth and collapse.
This profile is for informational purposes only and does not constitute investment advice, a recommendation, or a solicitation to buy or sell any security.