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

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.

2 February 2027
London, UK
Returning in 2027 for its 14th edition, Solar & Storage Finance Europe will bring together the brightest minds representing funds, banks, developers, utilities, government and industry across Europe and the UK on a programme that is solutions-focused from top to tail. The event is designed to enable leaders at the forefront of solar and storage investment and deployment in Europe to scale, learn and land themselves industry defining partnerships.

Read Next

October 16, 2026
Concord New Energy (CNE) has closed US$400 million in financing for its US clean energy and digital infrastructure portfolio.
October 15, 2026
Australia's solar financial investment decisions (FIDs) have hit a record 3.5GW in 2026, with energy minister Chris Bowen saying renewable energy investment "has already broken the annual record".
October 15, 2026
New Zealand Prime Minister Christopher Luxon has opened a 168MWdc solar PV plant that is now the largest on the country's South Island.
October 15, 2026
Aligned Climate Capital and Nexamp have secured finance for their respective community solar portfolios in the US.
October 15, 2026
The Australian Renewable Energy Agency (ARENA) has launched a third round of its Solar Sunshot programme, offering up to AU$250 million (US$175 million) to companies that manufacture or demonstrate equipment for building large-scale solar PV power plants in Australia.
October 14, 2026
The prices of European renewable energy power purchase agreements (PPAs) rose by 5.0% in September, according to figures from Pexapark.

Upcoming Events

Solar Media Events, Upcoming Webinars
October 21, 2026
2pm AEDT
Solar Media Events
November 3, 2026
Málaga, Spain
Solar Media Events
November 24, 2026
Warsaw, Poland
Solar Media Events
February 2, 2027
London, UK
Solar Media Events
April 20, 2027
Istanbul, Türkiye