Hawaiian island’s solar-plus-storage project locks in 22-year PPA at 17 Cents per kWh

Facebook
Twitter
LinkedIn
Reddit
Email
Rooftop solar elsewhere in Hawaii. Image: SolarCity.

Hawaii has been a prolific installer of both rooftop solar and latterly batteries for energy storage and one of the US state’s smaller islands looks set to get its first ever grid-scale solar-plus-storage system.

The state Public Utilities’ Commission (PUC) approved a power purchase agreement (PPA) deal for the project on the island of Molokai, which is just under 40 miles by 10 miles across and hosts around 3,200 electric utility customers, at the beginning of this month.

This article requires Premium SubscriptionBasic (FREE) Subscription

Unlock unlimited access for 12 whole months of distinctive global analysis

Photovoltaics International is now included.

  • Regular insight and analysis of the industry’s biggest developments
  • In-depth interviews with the industry’s leading figures
  • Unlimited digital access to the PV Tech Power journal catalogue
  • Unlimited digital access to the Photovoltaics International journal catalogue
  • Access to more than 1,000 technical papers
  • Discounts on Solar Media’s portfolio of events, in-person and virtual

Or continue reading this article for free

It will combine 4.88MW of solar PV with a 3MW / 15MWh battery energy storage system and is expected to be completed by the end of next year. The facility will have to be able to dispatch 2.64MW from the solar-plus-storage system which could be used to mitigate evening peaks in electricity demand.

To read the full version of this story, visit Energy-Storage.news.

21 May 2025
London, UK
The Renewables Procurement & Revenues Summit serves as the European platform for connecting renewable energy suppliers to the future of energy demand. This includes bringing together a community of European off-takers, renewable generators, utilities, asset owners, and financiers. The challenges ahead are complex, but through collaboration, innovation, and a shared vision, we can navigate uncertainties and forge a sustainable energy future. Let us harness our collective knowledge to advance the renewable energy agenda.

Read Next

April 16, 2025
Europe completed power purchase agreements (PPAs) for 1.6GW of renewable energy capacity in March, according to Pexapark.
April 11, 2025
A 10-year solar-based PPA will play an integral role in a new agreement that will see BOC Australia replace 45% of its power with renewables.
April 7, 2025
The PPA will enable the construction of a 238MW PV plant in Peru and increase Zelestra’s Peruvian contracted portfolio to more than 530MW.
March 27, 2025
Vesper sets a date to commission its Hornet Solar project, and Lightsource bp and Innergex commission projects in Louisana and Hawaii.
March 27, 2025
Qair has inked PPAs with Tunisian state utility Société Tunisienne de l’Electricité et du Gaz (STEG) for 298MW of solar PV.
March 25, 2025
Europe saw a 4% month-on-month decline in number of power purchase agreements (PPAs) signed in February 2025, according to Pexapark.

Subscribe to Newsletter

Upcoming Events

Media Partners, Solar Media Events
April 23, 2025
Fortaleza, Brazil
Solar Media Events
April 29, 2025
Dallas, Texas
Media Partners, Solar Media Events
May 7, 2025
Munich, Germany
Solar Media Events
May 21, 2025
London, UK
Solar Media Events
June 17, 2025
Napa, USA