INDUSTRY NEWS

April 21, 2026

CISION PR Newswire | TVA and Plus Power’s Crawfish Creek Energy Storage Sign on 200 MW Battery Project to Strengthen Power Affordability and American Energy Dominance

Plus Power and the Tennessee Valley Authority (TVA) announced on Tuesday a 20-year Energy Storage Agreement to add 200 megawatt / 800 megawatt-hour utility-scale battery energy storage to the Tennessee Valley. TVA, the largest public energy provider in the United States, selected the project through a Request for Proposal issued in early 2025 to supply new capacity resources needed across the region. The standalone system, developed by Plus Power’s Crawfish Creek Energy Storage project in Jackson County, Alabama, was chosen to help TVA meet its system needs and strengthen U.S. energy security.

February 11, 2026

Maine Public | New England’s largest battery storage opens in Gorham

New England’s largest standalone energy storage facility in Gorham is on and already improving reliability and stabilizing prices across the region, according to owner Plus Power. The Cross Town site in the town’s industrial park includes more than 150 battery units capable of storing up to 350 megawatt hours of energy, Christina Hoffman, the company’s senior director of planning said at a ribbon cutting Wednesday.

November 5, 2025

CISION PR Newswire | Plus Power Secures $160 Million in Tax Equity Investments for its Landmark ISO-NE Battery Storage Projects

Today, Plus Power™ announced tax equity investments from Morgan Stanley for the largest standalone battery energy storage projects in New England: a $95 million investment in Cranberry Point Energy Storage in Massachusetts, and a $65 million investment in Cross Town Energy Storage in Maine. The 150 MW / 300 MWh Cranberry Point facility, located in Carver, Massachusetts, came online in May 2025. At 175 MW / 350 MWh, the Cross Town facility in Gorham, Maine will be the largest battery in the region when it begins commercial operations in late Q4 2025.

September 10, 2025

CISION PR Newswire | Largest Utility-Scale Battery Energy Storage System in Massachusetts Now Online

Plus Power announced it is now operating its Cranberry Point Energy Storage facility in Carver, Massachusetts, the largest utility-scale standalone battery energy storage system on New England’s grid. The facility is a significant milestone in the buildout supporting New England’s energy infrastructure and grid reliability. At 150 MW / 300 MWh, Cranberry Point is helping the Commonwealth reach roughly a third of its goal to deploy 1,000 MWh of battery energy storage by 2025.

November 25, 2024

CISION PR Newswire | Plus Power Battery Storage Project Wins Public Service Company of New Mexico Award

Today, Plus Power announced that its 150 MW / 600 MWh Corazon Energy Storage project was awarded a 20-year contract by Public Service Company of New Mexico (PNM), subject to regulatory approvals, in response to the utility’s 2026-2028 Generation Resources Request for Proposals. The RFP was issued in 2022 and sought projects that will help serve growing energy demand in New Mexico as it transitions to zero-carbon energy by 2045. PNM filed with the New Mexico Public Regulation Commission for approval of the project on Nov. 22, 2024.

June 25, 2024

Arizona Republic | SRP deploys state’s largest battery system to handle peak energy demand spikes

Salt River Project is deploying two new industrial-scale battery storage systems, including the state’s largest so far, to absorb excess energy when it’s not needed for release at later periods when demand spikes. The 250 MW Sierra Estrella facility, on nine acres in Avondale, became the largest standalone battery system in Arizona when it went online earlier this month, SRP said. It will store enough energy to power more than 56,000 residences for four hours. The 90 MG Superstition Energy facility in Gilbert will store enough power for 20,000 homes for four hours.

June 13, 2024

CISION PR Newswire | First Major Standalone Battery Storage Project in ISO-NE Closes Financing

Today, Plus Power™ announced the close of construction and term financing for the first major utility-scale standalone battery storage system in construction on the New England grid, among other notable firsts for standalone storage in the region. The Cranberry Point facility, located in Carver, Massachusetts, will help stabilize the electric grid during the region’s increasing number of extreme weather events while helping to suppress volatile wholesale prices for ratepayers.

January 29, 2024

Civil Beat | A Huge Battery Has Replaced Hawaii’s Last Coal Plant

How do you maintain a reliable grid while switching from familiar fossil plants to a portfolio of small and large renewables that run off the vagaries of the weather? Now Hawaii has an answer: It’s a gigantic battery, unlike the gigantic batteries that have been built before.

January 27, 2024

USA Today | This state is quickly becoming America's clean energy paradise. Here's how it's happening.

Hawaii pledged to be “Coal free by ’23,” and state law mandates 100% clean energy in just 21 years. Attaining that goal came closer last month when Plus Power’s Kapolei Energy Storage, an enormous 185-megawatt battery near Honolulu, hummed into full operation.

January 15, 2024

Honolulu Star Advertiser | Editorial: Minimize outages, stay course on ‘green’ energy

Part of the challenge with conversion to intermittent sources of power, such as solar and wind power, is in storing that electricity so it can be used when the sun and wind energy ebbs. Hawaiian Electric’s Jim Kelly pointed to the Kapolei Energy Storage facility that just went online, one with 185 megawatts of total power capacity and capable of providing 565 megawatt-hours of electricity. This is a battery bank on 8 acres that will be a critical asset in managing Oahu’s energy demands.

January 11, 2024

CISION PR Newswire|  World's most advanced battery energy storage system comes online, speeding Hawaii's transition to 100% renewable energy

Plus Power announced it has begun operating its Kapolei Energy Storage facility on Oahu, Hawaii, the most advanced grid-scale battery energy storage system in the world, helping transition the state's electric power from coal and oil to solar and wind. "This is a landmark milestone in the transition to clean energy," said Brandon Keefe, Plus Power's Executive Chairman. "It's the first time a battery has been used by a major utility to balance the grid: providing fast frequency response, synthetic inertia, and black start. This project is a postcard from the future — batteries will soon be providing these services, at scale, on the mainland."

January 10, 2024

Canary Media | A huge battery has replaced Hawaii’s last coal plant

Plus Power’s Kapolei battery is officially online. The pioneering project is a leading example of how to shift crucial grid functions from fossil-fueled plants to clean energy. The plant’s 185 megawatts of instantaneous discharge capacity match what the old coal plant could inject into the grid, though the batteries react far more quickly, with a 250-millisecond response time. Instead of generating power, they absorb it from the grid, ideally when it’s flush with renewable generation, and deliver that cheap, clean power back in the evening hours when it’s desperately needed.

January 9, 2024

Hawaiʻi Public Radio | Hawaiʻi's largest energy storage project now online in Kapolei

The utility-scale battery farm kicked off commercial operations shortly before the holidays. It has a storage capacity of 565 megawatt-hours of electricity, making it the largest storage project in the state. The project's developer, San Fransisco-based Plus Power, believes it is the first time a battery has been used by a major utility to balance the grid.

September 12, 2023

The Texas Tribune | As brutal heat tests Texas’ power grid, batteries play a small but growing role in keeping the lights on

Battery supporters credit the technology for helping during tight times when every megawatt counts to keep the power on for Texas’ growing population. This summer, batteries have mostly sold their power to meet high demand around 7 p.m. or 8 p.m. when solar production winds down as the sun sets but temperatures are still high. Energy consultant and battery advocate Doug Lewin calls that the “white knuckle part of the evening” for ERCOT, when batteries’ relatively small contribution to the grid can still be “determinative” to meeting what has been record-high demand during Texas’ second-hottest summer ever.

September 15, 2022

Hawaiʻi Public Radio | Here's how intermittent vs. firm renewable energy sources factor into Hawaiʻi's power grid

The Conversation's Savannah Harriman-Pote on the role of firm renewable generation in the future of our grid. “On Oʻahu, Kapolei Energy Storage by Plus Power is still under construction, but it will be the largest storage facility in the state when completed, according to Polly Shaw, director of policy and communications for Plus Power… Battery storage is an important piece of the energy puzzle because it adds stability to variable energy sources, like wind and solar. Traditionally, those resources only provided energy when the wind was blowing or the sun was out.”

September 13, 2022

Honolulu Star Advertiser | Energy storage for Oahu taking shape in Kapolei

Andrew Gomes covers the construction of Plus Power’s Kapolei Energy Storage facility: “The project by San Francisco-­based Plus Power will be the largest stand-alone energy storage system in the state and will allow utility company Hawaiian Electric to accept more intermittent power generation from renewable sources, including rooftop solar, that replace fossil fuel power plants over the long term.”

September 12, 2022

KHON2 News | Kapolei energy storage facility set to modernize power grid

The KES facility will be the first of its kind in the state, and it will pave the way for the rest of the nation to transition into renewable energy. 

October 25, 2021

Canary Media  I  Hawaii has a one-year deadline to ditch coal.  Can it keep the lights on?

Watch a 6-minute video in this story from Julian Spector at Canary Media on how the Kapolei Energy Storage project in Oahu serves as a linchpin to integrate higher amounts of customer-sited renewables—and more utility-scale renewables. Project Lead Scott Schalich agrees: KES will be a “postcard from the future for the mainland on decarbonizing the grid.”

August 18, 2021

Canary Media | Hawaii building huge new battery, bidding farewell to coal 

Julian Spector describes the unique grid-forming and blackstart services of Plus Power’s planned 185 MW/ 565 MWh KES facility on Oahu, Hawaii, beyond its main role of absorbing abundant, low-cost renewable energy and shifting it to when energy is needed most.  “Put simply, KES is a test case for how to switch from fossil fuels to clean energy without relying on gas power in a pinch.”

August 17, 2021

Canary Media | Newsletter: Hawaii vs. fossil fuels

Julian Spector on Hawaii as a postcard from the future for clean energy and the first part of a Canary Media story on Plus Power’s KES battery storage facility serving the whole Oahu island grid.

August 12, 2021

Hawaii News Now (Print) | Groundbreaking begins in Kapolei for state’s largest stand-alone battery system

Crews broke ground in west Oahu on Wednesday on what will be the state’s largest stand-alone battery system.

August 12, 2021

Pacific Business News | Plus Power breaks ground on Kapolei Energy Storage project

The 185-megawatt project will be the largest stand-alone battery in the state and is now considered a key bridge to Oahu's transition off of the 180-megawatt AES coal plant, which is scheduled for retirement in September 2022 — a milestone toward the state's march to 100% green-generated power.

August 11, 2021

Hawaii News Now (Extended TV news clip) | Groundbreaking begins in Kapolei for state’s largest stand-alone battery system

Video coverage of the August 11, 2021 KES Ground Blessing as aired on Hawaii's KGMB and KHNL TV stations.

February 11, 2021

Green Tech Media | Plus Power Breaks Open New England Market for Massive Batteries

San Francisco-based developer Plus Power won two bids in the latest capacity auction held by the New England ISO, which operates the transmission grid and competitive power markets in six northeastern states. That means that these two battery plants offered a compelling enough price to edge out some fossil fuel plants for delivering power on demand.

November 30, 2020

go Kapolei Magazine | The Battery of our Future

As Yoshimura said in July’s virtual town hall, “KES will end the use coal in Hawai’i, make the Hawaiian Electric grid more reliable, and allow the deployment of more renewable energy. It really is a ‘win-win-win’”.

September 18, 2020

Utility Dive | Hawaiian Electric asks regulators to approve nearly 2 GWh storage, 300 MW solar contracts

Plus Power is developing the standalone Kapolei Energy Storage (KES) project on Oahu. "With a commercial operation date of June 2022, the 185 MW KES project will help facilitate the retirement of the last coal plant in Hawaii," Allyson Sand, a developer with Plus Power, said in an email. The island's 180 MW coal plant, owned by AES, is set to retire in September 2022.

MAY 26, 2020

Green Tech Media | Plus Power Enters Battery Big Leagues With Winning Project for Hawaiian Electric

“Developer Plus Power’s 185-megawatt battery will shift solar energy and deliver grid services to allow Oahu’s last coal plant to retire.”