FlexGen to build largest energy storage system in Texas co-located with solar

June 21, 2018
Facebook
Twitter
LinkedIn
Reddit
Email

Texas IPP Vistra Energy has contracted energy storage integrator FlexGen to install a 10MW / 42MWh energy storage system (ESS) at the 180MW Upton 2 Solar Power Plant in Texas.   

The lithium-ion storage system, which uses FlexGen’s Hybrid OS software, will be completed in late 2018. It will be the largest storage project in Texas and the seventh largest in the US.

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

“Vistra is leading our country’s transformation toward a reliable, low cost, sustainable energy mix and we’re thrilled to be supporting its storage strategy,” said Josh Prueher, FlexGen CEO. “The power grid of the future will see energy storage integrated on site with solar, wind, and gas generation, and the Upton solar plus storage project is a trailblazing example.”

FlexGen is backed by Altira Group, General Electric (GE) and Caterpillar. Its storage system will be used to store solar power generated during the day and deliver it to customers during evening hours when demand is greatest, improving grid reliability.

Read Next

January 16, 2026
Global tech giant Amazon has been approved as the buyer of the 1.2GW Sunstone solar project in Oregon, one of the largest solar PV projects in the US.
January 16, 2026
US C&I solar developer Altus Power has acquired four solar projects with a total capacity of 105MW from IPP Cordelio Power. 
January 16, 2026
The Patent Trial and Appeal Board (PTAB) of the US Patent and Trademark Office (USPTO) has partially ruled against solar manufacturer Maxeon in several claims against Canadian Solar.
January 16, 2026
Independent power producer (IPP) Origis Energy has signed a 303MW power purchase agreement with tech giant Meta for the Greyhound A Solar PV project in Texas.
January 15, 2026
Enphase has begun US shipments of its new IQ9N-3P three-phase gallium nitride-based microinverter aimed at commercial rooftops.
January 15, 2026
Independent power producer (IPP) Origis Energy has completed the second phase of a 300MW solar PV project in Florida, US.

Upcoming Events

Solar Media Events
February 3, 2026
London, UK
Solar Media Events
March 24, 2026
Dallas, Texas
Solar Media Events
April 15, 2026
Milan, Italy
Solar Media Events
June 16, 2026
Napa, USA
Solar Media Events
November 3, 2026
Málaga, Spain