Terra-Gen and Mortenson to build ‘world’s largest’ solar-plus-storage project

December 15, 2020
Facebook
Twitter
LinkedIn
Reddit
Email
Image: Sunpower.

Renewable energy developer Terra-Gen has partnered with construction firm Mortenson to build what they claim is the world’s largest standalone solar-plus-storage project to date.

Called the Edwards & Sanborn energy project, it consists of 1,118MW of solar and 2,165MWh of energy storage in Kern County, which has become California’s unofficial large-scale solar capital due to the number of projects being built there.

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

Terra-Gen’s project will supply energy for “all hours of demand”, according to Brian Gorda, the company’s vice president of engineering.

The developer said it will break ground on the project in early 2021, and expects it to come online by the end of 2022. It will utilise more than 2.5 million solar and more than 110,000 lithium-ion battery modules, according to Terra-Gen.

“Terra-Gen is excited to push the industry to new heights and build a plant that provides energy for all hours of demand,” Gorda said.

The project has already received interest from corporate customers. Supplier LevelTen Energy has facilitated a deal between Terra-Gen and Starbucks that will see the coffee chain purchase 24MW of solar power and 5.5MW of battery storage from the new Kern County facility. Starbucks said in a separate announcement the deal will supply renewable energy for 550 branches in California.

Starbucks has previously called on LevelTen to bolster its use of renewables. The matchmaking service helped to develop a 146MW renewable portfolio through a string of power purchase agreements (PPS) in June 2019, which is set to power over 3,000 stores through solar and wind plants in Texas, North Carolina and the US Southwest Power Pool next year.

Trent Mostaert, Mortenson’s vice president and general manager of solar, said the Edwards & Sanborn project will “redefine the impact these systems will have on our clean energy future”.

Read Next

May 7, 2026
American Steel and Aluminum (ASA, which produces US-made solar foundations, has opened a new facility in Syracuse, New York.
May 7, 2026
Neoen has brought its 440MWp Culcairn Solar Farm online in NSW, marking the completion of the company's second-largest solar asset globally.
May 7, 2026
Nova Energy & Meridian Energy have marked the installation of the first modules at the 400MW Te Rahui Solar Farm in Rangitāiki in New Zealand.
May 6, 2026
A report has found measurable improvements in the performance of technologies used for recycling crystalline silicon and thin-film PV modules.
May 6, 2026
Solar PV and wind are now the cheapest power sources globally, with hybrid systems increasingly delivering 24/7 electricity at fossil-competitive costs, according to an IRENA report.
May 6, 2026
Scatec has established an equity partnership with the National Bank of Egypt for its Obelisk 1.1GW solar and 100MW/200MWh BESS project.

Upcoming Events

Solar Media Events
May 20, 2026
Porto, Portugal
Upcoming Webinars
May 27, 2026
9am BST / 10am CEST
Media Partners, Solar Media Events
June 3, 2026
National Exhibition and Convention Center (Shanghai)
Solar Media Events
June 16, 2026
Napa, USA
Media Partners, Solar Media Events
August 25, 2026
São Paulo, Brazil