Spearmint Energy breaks ground on 300MWh ERCOT battery storage project

December 19, 2022
LinkedIn
Twitter
Reddit
Facebook
Email

Battery storage developer Spearmint Energy has started building a 150MW/300MWh unit in the ERCOT, Texas market, its first project.

The company announced the start of construction of the two-hour duration ‘Revolution’ energy storage project in West Texas last week (15 December). The new developer acquired the project, which will be next to a 279MW wind farm, in July.

Engineering, procurement and construction (EPC) specialist Mortensen is delivering the project through the construction of the battery storage facility, substation and transmission line for connection to the ERCOT (Electric Reliability Council of Texas) grid.

It will be one of the largest battery energy storage systems (BESS) in the US when it is commissioned in mid-2023, Spearmint claimed, and will help the Texas grid transition away from fossil fuels.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

CEO Andrew Waranch, who recently wrote a guest blog for Energy-Storage.news about why the Texas grid needs battery storage added:

“Revolution will provide critical grid resiliency and reliability services to enable the continued deployment of low-cost renewable energy in ERCOT at a time when our nation is grappling with challenges brought by a changing climate, rising oil and natural gas prices, increasing demand for electricity, and the impacts of supply chain constraints, inflation, and tariffs on the construction of new generation facilities.”

The vast majority of Texas’ renewable energy comes from wind farms, which is in contrast to sunnier states like California which mostly get theirs from solar PV. Wind is a more intermittent resource than solar PV and so batteries have a key role to play in smoothing out the peaks and troughs in generation.

As of July 2022, ERCOT had 1,639MW of BESS projects connected and synchronised to its grid. According to the grid operator’s own data, it has around another 1,800MW of BESS projects expected to enter commercial operation before the end of the year, bringing the total to around 3,400MW online.

Miami-headquartered Spearmint also recently hired four executives to its team, including new senior VP of project technology Chris Wright, formerly of utility Nextera Energy Resources; new senior VP of project execution Jeff Jackson, formerly of Mortensen; new VP of project finance Nicolas Cottely, formerly of solar and storage developer Origis Energy; and a new data scientist Allen Yu from energy trading and risk management firm XO Energy.

24 March 2026
Dallas, Texas
The Energy Storage Summit USA is the only place where you are guaranteed to meet all the most important investors, developers, IPPs, RTOs and ISOs, policymakers, utilities, energy buyers, service providers, consultancies and technology providers in one room, to ensure that your deals get done as efficiently as possible. Book your ticket today to join us in 2026!

Read Next

February 4, 2026
Three Chinese energy storage companies have recently successively filed or updated their listing applications with the Hong Kong Stock Exchange (HKEX), planning IPOs on the Hong Kong Main Board.
February 4, 2026
IPP Enlight Renewable Energy has reached development milestones for its total 1.21GW solar plus 4GWh energy storage CO Bar Complex in Arizona, US, and is now advancing the project toward operation.
February 3, 2026
Warren Buffett’s Berkshire Hathaway-owned BHE Renewables has successfully energised its 75MW/150MWh Glacier Battery System project in Montana, US.
Premium
February 3, 2026
Energy-Storage.news Premium hears from Tom Cornell, CEO and President of Prevalon Energy, about the company’s strategies for navigating upcoming changes in the energy storage industry over the next year.
February 3, 2026
Energy storage is expected to play a significant role in enabling the global data centre build-out, although the commercial and financing models developers will use are evolving, Energy-Storage.news has learned.