About GridStor
Company Overview
GridStor, a privately held company backed by Goldman Sachs Asset Management (source: gridstor.com)
HeadquartersPortland, OR, United States
Founded2022
SizeApproximately 50 employees (source: linkedin.com)
What They Do
GridStor specializes in utility-scale standalone battery energy storage systems, focusing on developing, acquiring, building, and operating grid-scale battery projects that store electricity and discharge it back to the grid during periods of high demand (source: gridstor.com). Their technology enhances grid reliability and flexibility, serving utilities, data centers, and large industrial customers in markets experiencing rising electricity demand (source: gridstor.com). As an independent power producer, GridStor emphasizes cost-effective, near-term power solutions and leverages its strong capital backing from Goldman Sachs Asset Management to execute projects efficiently (source: gridstor.com). The company’s leadership team includes executives focused on technology, commercial strategy, and finance, reflecting its commitment to growth and operational excellence (source: gridstor.com).
Projects & Track Record
GridStor’s flagship operating asset is the Hidden Lakes Reliability Project in Texas, completed in November 2025 and recognized as one of the state’s largest battery storage facilities (source: gridstor.com). This project also facilitated an $86 million direct transfer of investment tax credits in partnership with Foss & Company (source: gridstor.com). Additionally, GridStor has entered a battery storage swap agreement with Axpo, a leading international energy company headquartered in Switzerland, linked to the Hidden Lakes project (source: gridstor.com). In Texas, the Gunnar Reliability Project in Hidalgo County, a 150 MW facility, is expected to begin operations by the end of 2026 (source: gridstor.com). In Colorado, GridStor acquired the Birdseye project in Adams County, a 199 MW / 796 MWh battery energy storage facility, in May 2026, expanding its footprint in the western U.S. (source: gridstor.com). The company manages a portfolio spanning the western and central United States, with assets in operation, construction, and a pipeline exceeding 3 GW in later-stage development (source: linkedin.com).
Recent Developments
In 2025, GridStor completed the Hidden Lakes project in Texas and successfully sold $86 million in associated tax credits, marking a significant milestone in its commercial activities (source: gridstor.com). The company also strengthened its leadership team with key appointments in technology, commercial strategy, and finance roles during the same year (source: gridstor.com). In March 2026, GridStor secured a $120 million financing agreement with NORD/LB, Siemens Financial Services, and others to support the Gunnar Reliability Project in Texas (source: gridstor.com). April 2026 saw the announcement of a battery storage swap agreement with Axpo for the Hidden Lakes project (source: gridstor.com). In May 2026, the company expanded its portfolio by acquiring the Birdseye project in Colorado (source: gridstor.com). By September 2026, GridStor closed a $220 million debt financing deal with ING Capital, KeyBank, and Zions Capital Markets to complete a 100 MW battery storage facility in Arizona (source: gridstor.com).
Working There
GridStor offers roles primarily in commercial, development, finance, technology, and power-marketing functions, reflecting its focus on advancing battery storage projects across key U.S. power markets (source: linkedin.com). Recent job postings highlight positions such as Director of Business Development and Director of Origination, emphasizing work on behind-the-meter and on-site energy storage, customer partnerships, and long-term energy storage agreements (source: linkedin.com). The company culture is described as fast-paced, execution-driven, and collaborative, with a rapidly growing team supported by Goldman Sachs Asset Management backing (source: linkedin.com). GridStor operates regional offices in Denver and Los Angeles in addition to its Portland headquarters, fostering cross-functional collaboration and shared learnings across its infrastructure business (source: gridstor.com).
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