US Navy plans to build 44MW solar-plus-storage project in Kauai

LinkedIn
Twitter
Reddit
Facebook
Email

Kauai, Hawaii. Flickr user: tdlucas
The US Navy plans to develop a utility-scale solar farm and energy storage system on the 863.6 hectare Pacific Missile Range Facility on the island of Kauai, Hawaii, according to a draft environmental assessment.

The solar PV system would generate 44MW of clean energy into the Kauai Island Utility cooperative’s grid for use by the public and the military. It will be constructed over two phases of 21MW and 23MW respectively, expecting to break ground in December. Details about the energy storage part of the project were not detailed in the assessment.

However, it did say that the batteries would be used to store solar power generated during the day for use at night and further reduce the need for the island’s expensive diesel generators and provide stable generation. Together, the solar and storage would provide electricity in the event of a power outage, as well as help reach the Navy’s renewable energy goals.

This project is reportedly one of three solar-plus-storage offerings to be built under an understanding between the Navy and the California Energy Commission, pursuant to a MoU signed in October.

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 islands of Hawaii have an ambitious 100% renewable energy by 2045 plan, with other recently announced projects including a 52MWh utility-scale energy storage system by Tesla-SolarCity and a 20MW, five-hour duration battery energy storage system paired with 28MW of solar by AES, both on Kauai.

Read Next

July 1, 2026
Independent power producer (IPP) Grenergy has signed a 1TWh night-time power purchase agreement (PPA) for its 3.5GWh Elena BESS project in Chile.
June 29, 2026
Two recent microgrid projects highlight the expanding role of flow batteries, with Quino Energy deploying organic flow batteries in the Maldives and the Paskenta Band of Nomlaki Indians integrating zinc hybrid cathode storage in Northern California.
June 26, 2026
IPP Enlight Renewable Energy has announced that its US subsidiary Clēnera Holdings has entered into a debt financing framework agreement for the CO Bar Complex in Arizona, US.
June 25, 2026
US residential solar and energy storage installer Sunrun, energy management platform Renew Home, and Tesla have announced an agreement to deliver more than 16GW of flexible energy capacity to US hyperscalers and utilities.
June 23, 2026
Renewables developer rPlus Energies has announced start of commercial operations for the 400MW/1,600MWh Green River Energy Centre in Emery County, Utah, US.