Full-Time
Posted on 10/31/2025
Energy storage systems with optimization software
No salary listed
Remote in USA
Hybrid
FlexGen provides integrated energy storage solutions by designing and deploying battery energy storage systems (BESS) and pairing them with HybridOS, a proprietary software platform that manages and optimizes these assets. The product combines hardware and software to enable automated energy dispatch from batteries, solar/wind, and conventional generators to meet grid demands. It can manage a single site or an entire fleet of storage assets and delivers real-time data and performance analytics. Unlike competitors that may focus on either hardware or software alone, FlexGen offers a tightly integrated, software-first solution that coordinates multiple energy sources and storage assets in one system. Its goal is to support the energy transition by stabilizing the power grid, integrating renewable energy, and ensuring reliable power supply for utilities, independent power producers, and large industrial customers, while optimizing asset performance and cost for its customers.
Company Size
201-500
Company Stage
Debt Financing
Total Funding
$357.5M
Headquarters
Durham, North Carolina
Founded
2009
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Health Insurance
Paid Vacation
Paid Sick Leave
Paid Holidays
FlexGen Power Systems has acquired Clean Energy Services (CES), a provider of battery energy storage and utility-scale solar services. The deal strengthens FlexGen's battery storage leadership by adding CES's commissioning and lifecycle service capabilities to its existing software offerings. Founded in 2022, CES will operate as a FlexGen subsidiary whilst maintaining its existing customer base. CES brings over 125 field technicians and engineers, having commissioned more than 15GWh of battery storage systems and servicing over 1GW of solar and 4.5GWh of battery assets. The acquisition enables FlexGen to offer integrated solutions combining its HybridOS energy management software with CES's field service expertise. CES will continue operating its remote operations centre in Houston, whilst FlexGen maintains its Durham facility, together providing 24/7 monitoring across their combined portfolios.
FlexGen Power Systems has announced the latest version of its HybridOS energy management system, designed to maximise performance for battery storage and solar projects. The hardware-agnostic platform features a unified user interface providing real-time visibility across all assets from a single panel. Key updates include predictive diagnostics to identify hardware issues proactively, enhanced battery management system functionality to extend battery lifespan, and expanded power plant controller capabilities for unified solar and storage management. The system enables operators to increase grid service participation and convert curtailed energy into dispatchable power during peak demand. FlexGen serves over 200 energy storage systems totalling more than 25 GWh globally. The company provides battery energy storage solutions and software to utilities, developers and industrial clients.
FlexGen acquires Powin assets, growing energy storage footprint to 25 gwh in 10 countries.
August 15, 2025: Flexgen Power Systems said on August 6 it had been given court approval to acquire a substantial portion of the business of US-based BESS developer Powin.
A bankruptcy court in New Jersey last week approved a deal in which FlexGen Power Systems will purchase intellectual property and a "significant spare parts inventory" from former competitor Powin.