NEWS
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 | New England’s Largest Utility-Scale Battery Energy Storage System 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 24, 2024
SRP | Two New Batteries on SRP’s Grid will Advance Reliable and Sustainable Power for SRP Customers
Salt River Project (SRP) and Plus Power today celebrated two new grid-charged battery storage systems, Sierra Estrella Energy Storage and Superstition Energy Storage. Together, these facilities will add 340 megawatts (MW) / 1,360 megawatt-hours (MWh) of additional battery storage capacity to SRP’s system – enough to power 76,000 residential homes for a four-hour period. The batteries will absorb excess energy when customer demand is lower and store it for use during times of peak demand.
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.
May 1, 2024
CISION PR Newswire | Plus Power Secures Additional $82 Million of Tax Equity for Battery Storage Projects
Plus Power™ announced the closing of an $82 million tax equity investment from Morgan Stanley for the 90 MW / 360 MWh Superstition Energy Storage facility in Gilbert, Arizona. Plus Power, which leads the sector for developing, owning, and operating standalone energy storage, has raised a total of approximately $2 billion for five total facilities in Arizona and Texas since October 2023. These investments will enable Plus Power to bring the facilities online by summer 2024, helping stabilize electric grids in the Southwest during extreme weather while integrating more renewable energy.
February 15, 2024
CISION PR Newswire | Plus Power Secures Nearly $100 Million Tax Equity Financing for Merchant Battery Storage Project in ERCOT
Plus Power announced the completion of approximately $98 million in tax equity investment for its 200 MW / 400 MWh Ebony Energy Storage facility in Comal County, Texas. The investment from Greenprint Capital Management, a market leader in structured, renewable energy tax credit partnerships, will help the project stabilize ERCOT’s power system during dynamic summer demand and cold winter storms while helping to integrate more renewable energy into the grid
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 requires 100% clean energy in just 21 years. Attaining that goal came closer last month when an enormous 185-megawatt battery near Honolulu hummed into full operation.
January 07, 2024
The Maine Monitor | Maine’s first giant battery project set for construction in Gorham
Construction is set to begin this spring in Gorham on one of New England’s largest battery storage projects, a preview of similar ventures that are seen as a missing link for optimizing the region’s growing fleet of solar and wind power plants.
August 3, 2023
The National Law Review | Massachusetts DPU Approves Zoning Bylaw Exemptions for Two Energy Storage Projects
The National Law Review on the Massachusetts Department of Public Utilities approval for Plus Power’s Cranberry Point Energy Storage in Carver, MA. “Per the Order, the Department also found that the projects are necessary and will provide public benefits, and that the alternative sites evaluated, or no-build alternatives, are inferior to the proposed locations and plans. The Department also evaluated public health and safety issues related to potential fire risks at the proposed project sites, details about battery operating technology, water and wetlands impacts and issues pertaining to land use.”
July 14, 2023
EnergyCapitalHTX | Energy storage startup moves into larger Houston-area space, plans to grow team
Houston media reports on Plus Power’s establishment of our headquarters in The Woodlands, Texas. “One of Plus Power’s storage facilities is the 100-megawatt Gambit project, which opened two years ago in Angleton. The nearly eight-acre facility supports power supplies for the Electric Reliability Council of Texas (ERCOT), which runs the power grid for 90 percent of Texas.”
April 13, 2023
AZ Central | “SRP starts work on Arizona's largest standalone battery project in this metro Phoenix city”
SRP and Houston-based Plus Power, joined by officials from Avondale, held a ceremonial ground breaking at the previously announced battery facility Wednesday. The new Sierra Estrella energy storage facility will hold electricity produced during low-use periods and release it when demand is higher, helping to power more than 56,000 average-sized homes for a four-hour period.
April 13, 2023
American Public Power Association | “Construction Nears on New Salt River Project Large-Scale Battery Storage Facility”
Officials from Arizona public power utility Salt River Project, Plus Power and the City of Avondale, Ariz., on April 12 gathered for a ceremonial groundbreaking to kick off construction mobilization at a new large-scale battery facility.
January 25, 2023
S&P Global | “Supercharged: U.S. Energy Storage Reaches for Deeper Impact”
The U.S. energy storage industry has a powerful set of new tools in 2023 to help decarbonize the nation’s power grid. Plus Power COO Julie Blunden joined Garret Hering’s Supercharged virtual webinar to discuss the opportunities and the considerable challenges ahead for battery storage. “It will be a while before we have fully domestic batteries for energy storage—but that may not be the requirement.”
October 27, 2022
Phoenix Business Journal | “SRP signs deal for two more battery storage stations to handle peak power demand”
Salt River Project said Thursday that it will add two new battery storage systems that will go online in 2024 with a combined output of 340 megawatts, giving the Arizona utility company more options during times of heavy power demand. SRP said it signed contracts with Houston-based Plus Power for the two projects, which will be built in Avondale and Gilbert.
July 19, 2022
Maine Public Radio | “Big batteries are quickly becoming part of Maine's electric grid”
Murray Carpenter interviews State Representative Mo Terry on Maine’s electrified future: “The storage facilities that we have right now are on the smaller size, 10-15 megawatts per facility, where the one that’s coming to Gorham is hopefully going to be up to about 150 megawatts of storage,” she says. That proposed facility, Plus Power’s Cross Town Project, would be about 17 times the size of the Tesla system near East Millinocket. That's about enough to power 150,000 Maine homes for two hours.
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 6, 2021
Forbes I “Plus Power: Charging Into New Storage Markets”
Peter Kelly-Detwiler on Plus Power’s data-driven strategies to deploy utility-scale stand alone energy storage across the U.S.
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.