The Zier Solar + Storage project is paired with a 40MW/80MWh battery energy storage system (BESS) and has already been used by the Electric Reliability Council of Texas (ERCOT) transmission network, which covers most of Texas, to ease up grid supply strain during increased demand.

This article requires Premium SubscriptionBasic (FREE) Subscription

Unlock unlimited access for 12 whole months of distinctive global analysis

Photovoltaics International is now included.

Regular insight and analysis of the industry’s biggest developments
In-depth interviews with the industry’s leading figures
Unlimited digital access to the PV Tech Power journal catalogue
Unlimited digital access to the Photovoltaics International journal catalogue
Access to more than 1,000 technical papers
Discounts on Solar Media’s portfolio of events, in-person and virtual

View all benefits & pricing

Or continue reading this article for free

Financing for the project was supplied by German commercial bank Norddeutsche Landesbank Girozentrale, among others, in 2022, when Cypress Creek secured US$216 million in financing for the project.

The IPP has been developing renewable projects in Texas since 2014 and has 1GW of operational capacity. The company, was acquired by private equity firm EQT Partners in 2021, has a pipeline of 6GW between 24 projects in construction or development, including a 100MWh standalone BESS project near Houston that is expected to reach commercial operation next month.

Judd Messer, Texas vice president of the Advanced Power Alliance, said: “Solar energy is ensuring sufficient capacity during day-time peak, setting records nearly every month, and quick-responding energy storage delivers a substantial reliability benefit when demand soars or when dispatchable energy unexpectedly falls offline.”

According to a recent report from Lawrence Berkeley National Laboratory, Texas was the US state with the most solar PV capacity in its interconnection queue as of the end of 2023.

UPCOMING EVENT

PV ModuleTech USA 2025

17 June 2025

Napa, USA

PV Tech has been running PV ModuleTech Conferences since 2017. PV ModuleTech USA, on 17-18 June 2025, will be our fourth PV ModulelTech conference dedicated to the U.S. utility scale solar sector. The event will gather the key stakeholders from solar developers, solar asset owners and investors, PV manufacturing, policy-making and and all interested downstream channels and third-party entities. The goal is simple: to map out the PV module supply channels to the U.S. out to 2026 and beyond.

UPCOMING EVENT

PV CellTech USA 2025

7 October 2025

San Francisco Bay Area, USA

PV Tech has been running an annual PV CellTech Conference since 2016. PV CellTech USA, on 7-8 October 2025 is our third PV CellTech conference dedicated to the U.S. manufacturing sector. The events in 2023 and 2024 were a sell out success and 2025 will once again gather the key stakeholders from PV manufacturing, equipment/materials, policy-making and strategy, capital equipment investment and all interested downstream channels and third-party entities. The goal is simple: to map out PV manufacturing in the U.S. out to 2030 and beyond.

UPCOMING EVENT

Solar & Storage Finance USA 2025

21 October 2025

New York, USA

Returning for its 12th edition, Solar and Storage Finance USA Summit remains the annual event where decision-makers at the forefront of solar and storage projects across the United States and capital converge. Featuring the most active solar and storage transactors, join us for a packed two-days of deal-making, learning and networking.