Doral Renewables breaks ground on Mammoth Solar project, US’ largest PV development

October 15, 2021
Facebook
Twitter
LinkedIn
Reddit
Email
Doral officials at the groundbreaking ceremony on 14 October 2021. Image: Doral Renewables/Eric Holcomb.

Doral Renewables has broken ground on the 1.65GWdc Mammoth Solar project in Indiana, set to be the US’ largest solar farm once complete.

Yesterday Doral hosted stakeholders, officials and local politicians at a groundbreaking ceremony to mark the start of construction on the project in Starke County, Indiana.

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

The first phase of the Mammoth Solar project, Mammoth Solar I, is to have a capacity of 480MWdc, and development is to be followed swiftly by a second phase with a slated generation capacity of 360MWdc.

AEP Energy, the energy supply division of utility giant American Electric Power, has been confirmed as the offtaker for both of the initial phases of the project.

Mammoth Solar II is expected to begin construction early next year.

Mammoth Solar I is coming forward using Nextracker tracker solutions and Risen bifacial solar modules.

Governor of Indiana Eric Holcomb confirmed his presence at the groundbreaking ceremony on Twitter, where he heralded Doral Renewables’ “significant” investment in the state for creating jobs for local residents and providing renewable power for the Midwest region.

“Today is more proof that Indiana will continue to play a key role in the global energy sector, with clean, renewable energy sources for generations of Hoosiers to come,” he said.

Read Next

February 26, 2026
A round-up of several project stories in the US that have been announced this week, including OCI Energy, Arava Power, Arevon Energy and MN8.
Premium
February 26, 2026
Europe’s somewhat delicate position in global solar means it is uniquely-positioned to take advantage of global supply chain uncertainties.
February 25, 2026
First Solar has announced net sales of US$1.7 billion for the fourth quarter of 2025, driving full-year sales of US$5.2 billion.
February 24, 2026
Atlas Renewable Energy has secured refinancing of US$3 billion for a solar and BESS portfolio in Latin America.
February 23, 2026
Polish IPP R.Power has raised US$50.7 million (€43 million) in finance to support the development of a 70.5MW solar PV portfolio in Poland.
Premium
February 19, 2026
Making investment decisions based on an entire renewable energy portfolio, rather than the merits of an individual project, is now the norm.

Upcoming Events

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
October 13, 2026
San Francisco Bay Area, USA
Solar Media Events
November 3, 2026
Málaga, Spain