Hidden Lakes Reliability Project is GridStor's first completed project in Texas and among the state's largest

GridStor, a developer and operator of utility-scale battery energy storage systems, dedicated its Hidden Lakes Reliability Project facility on November 4 with public officials and regional business leaders. Now in operation, the 220 MW / 440 MWh battery energy storage facility can provide power equivalent to serving 140,000 average Texas households during the hours of highest electric demand.

"The Hidden Lakes Reliability Project is helping meet Texas' historic economic expansion and fast-growing demand for electricity from cities, data centers, and other large industrial customers," said Chris Taylor, CEO of GridStor. "Our battery storage facility will help stabilize the power grid and contribute daily to meeting the hours of greatest demand, which keeps overall costs to customers lower. Texas needs ‘speed to power,' and we are proud to meet the call with a near-term solution that supports the region's growth."

Following opening remarks, Congressman Randy Weber of Texas' 14^th Congressional District, Chairman Thomas J. Gleeson of the Public Utility Commission of Texas, and Rep. Terri Leo-Wilson of the Texas House of Representatives 23^rd District joined with Taylor to cut the ribbon on the completed facility.

The Hidden Lakes Reliability project will contribute tens of millions of dollars to the county in estimated sales and use tax revenue, including property taxes benefiting Galveston County and Dickinson Independent School District. The facility will increase the resilience of the Texas electric grid, helping ensure reliable power supply during disturbances and hours of peak customer demand via participation in the Electric Reliability Council of Texas (ERCOT) electricity market. Approximately 100 full-time skilled tradespeople and apprentices were employed during construction.

GridStor's Hidden Lakes facility is its first operating facility in Texas. Backed by Goldman Sachs Asset Management, GridStor manages a project pipeline of over 3 GW of battery storage projects in later-stage development or under construction across the western and central U.S. The company is focused on executing and delivering projects that provide cost-effective, near-term solutions to utilities, data centers, and other large industrial customers in regions with rapidly growing energy demand.

About GridStor

GridStor strengthens America's power system reliability by building and operating battery projects, storing electricity to deliver when and where it's most needed. GridStor develops, acquires, and operates utility-scale, standalone battery storage projects primarily across North America. Visit us at www.gridstor.com and on LinkedIn.

About Goldman Sachs Asset Management

Goldman Sachs (NYSE:GS) is one of the leading investors in alternatives globally, with over $500 billion in assets and more than 30 years of experience. The business invests in the full spectrum of alternatives including private equity, growth equity, private credit, real estate, infrastructure, sustainability, and hedge funds. Clients access these solutions through direct strategies, customized partnerships, and open-architecture programs.

The business is driven by a focus on partnership and shared success with its clients, seeking to deliver long-term investment performance drawing on its global network and deep expertise across industries and markets.

The alternative investments platform is part of Goldman Sachs Asset Management, which delivers investment and advisory services across public and private markets for the world's leading institutions, financial advisors and individuals. Goldman Sachs has approximately $3.3 trillion in assets under supervision globally as of June 30, 2025.

Established in 2006, Infrastructure at Goldman Sachs Alternatives has consistently navigated the evolving infrastructure asset class, having invested approximately $13 billion in infrastructure assets across market cycles since its inception. The business partners with experienced operators and management teams across multiple sectors, including digital infrastructure, energy transition, transportation and logistics and essential services.

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Media Contact

Alaina Gjertsen

Alaina.Gjertsen@gridstor.com

GridStor Celebrates Completion of Texas' Newest Battery Storage Facility