Plus Power

Plus Power

Develops and deploys utility-scale battery storage

About Plus Power

Simplify's Rating
Why Plus Power is rated
B-
Rated B on Competitive Edge
Rated B on Growth Potential
Rated C on Differentiation

Industries

Hardware

Industrial & Manufacturing

Energy

Company Size

201-500

Company Stage

Debt Financing

Total Funding

$233M

Headquarters

San Francisco, California

Founded

2018

Overview

Plus Power builds and operates large-scale battery energy storage systems that improve grid reliability and efficiency. Its standalone storage projects store excess electricity and release it when needed to support utilities, grid operators, and renewable developers. The company’s products provide services such as fast frequency response, virtual inertia, and blackstart, and it earns revenue from selling storage capacity and ancillary services in wholesale energy markets. Compared with competitors, Plus Power emphasizes US-focused siting optimization to maximize long-term value and environmental stewardship, backed by a broad portfolio (over 7,000 MW) across 20 states and participation in nearly all major RTO markets. Its goal is to enable reliable, flexible grid operation and renewable energy integration through scalable, utility-grade storage solutions.

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Simplify's Take

What believers are saying

  • TVA's April 2026 20-year deal for 200 MW Crawfish Creek enters Southeast with 6,200 MW expansion.
  • Morgan Stanley's $160M tax equity funds Cranberry Point and Cross Town, operational May and Q4 2025.
  • PNM awards 20-year contract for 150 MW Corazon project, supporting New Mexico's 2045 zero-carbon goals.

What critics are saying

  • Tesla's January 2026 20% Megapack cuts erode ISO-NE auction margins for Cranberry Point and Cross Town.
  • FERC Order 2026 June fees strand 40% of 11 GW pipeline, including $50M+ Crawfish Creek costs.
  • NREL 2025 study shows 25% faster degradation in AZ/TX assets, slashing 340 MW value by 2029.

What makes Plus Power unique

  • Plus Power owns and operates 11 GW battery storage pipeline across 20+ U.S. states since 2018.
  • In-house expertise spans greenfield development, permitting, and power market analysis in multiple RTOs.
  • Nine operating facilities total 1,650 MW/4,150 MWh, delivering grid services during Texas 2023 peaks.

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Funding

Total Funding

$233M

Above

Industry Average

Funded Over

2 Rounds

Debt funding comparison data is currently unavailable. We're working to provide this information soon!
Debt Funding Comparison
Coming Soon

Benefits

Unlimited Paid Time Off

Flexible Work Hours

Remote Work Options

Home Office Stipend

Parental Leave

Growth & Insights and Company News

Headcount

6 month growth

0%

1 year growth

0%

2 year growth

22%
PR Newswire
Feb 11th, 2026
Maine's first utility-scale battery storage system goes live with 175MW capacity

Plus Power has launched Maine's first utility-scale battery energy storage system in Gorham, now the largest of its kind on the ISO New England grid. The Cross Town facility has a capacity of 175 MW and 350 MWh, storing excess energy during low-demand periods for use during peak times. The project supports Maine's target to deploy 400 MW of battery storage by 2030 and helps integrate renewable energy towards the state's goal of 100% renewable electricity sales by 2040. Located on five acres adjacent to Central Maine Power's Moshers substation, the facility eases transmission congestion and enables wind power distribution from Northern Maine to southern markets. Cross Town features 156 Sungrow PowerTitan units and was built in partnership with Maine-based Cianbro Corporation. It is Plus Power's second New England project, following the 150 MW Cranberry Point facility in Massachusetts.

Energy-Storage.News
Nov 7th, 2025
Plus Power secures US$160 million for New England BESS projects

Plus Power secures US$160 million for New England BESS projects. Developer-operator Plus Power has secured US$160 million in tax equity investments from Morgan Stanley for two battery energy storage system (BESS) projects in Massachusetts and Maine, US. US$95 million is being invested in Cranberry Point Energy Storage in Massachusetts, and US$65 million is being invested in Cross Town Energy Storage in Maine. The Cranberry Point facility, with a capacity of 150MW/300MWh and located in Carver, Massachusetts, came online in May 2025. The Cross Town facility in Gorham, Maine, has a capacity of 175MW/350MWh, and Plus Power claims it will be the largest battery in the region when it starts commercial operations in late Q4 2025. In 2024, Plus Power closed financing for the Cranberry Point facility with First Citizens Bank, Nord LB, Investec Bank, and Siemens Financial Services. In the same year, the company closed the debt financing for Cross Town with Nord LB, Investec, and Siemens Financial Services. Across both projects, Plus Power has secured more than US$290 million in debt financing, which includes construction-to-term loans, tax equity bridge financing, and letter of credit facilities. According to a 2023 petition from Plus Power to the government of Carver, Massachusetts, the Cranberry Point project utilises 82 Tesla Megapack 2XL energy storage solutions. The project was also among the first BESS facilities to secure a Capacity Supply Obligation with the Independent System Operator of New England (ISO-NE), in 2021. Plus Power noted that Cranberry Point and Cross Town will contribute to balancing intermittent resources, enhance grid reliability, and help meet demand in ISO-NE. As of April 2025, ISO-NE reported that energy storage accounted for 45% of the projects in its interconnection request queue. The independent system operator also reported that, even with significant investments in modernising the transmission system to facilitate the free flow of low-cost power, further upgrades to transmission and distribution systems will be necessary to handle large quantities of diverse renewable energy resources. ISO-NE further stated that it does not have authority over siting processes or permits. Due to local opposition and other factors, transmission projects in New England often experience lengthy delays before they are realised.

TechZone Print Media
Nov 7th, 2025
Plus Power Secures $160 Million Funding for U.S. Battery Energy Storage Projects

Plus Power secures $160 million funding for U.S. Battery energy storage projects. Plus Power has secured $160 million in tax equity investments from Morgan Stanley for two standalone battery energy storage system (BESS) projects in New England. The financing includes $95 million for the 150 MW/300 MWh Cranberry Point energy storage facility in Carver, Massachusetts, and $65 million for the 175 MW/350 MWh Cross Town energy storage facility in Gorham, Maine. The Cranberry Point project began commercial operations in May 2025, while the Cross Town project is expected to commence operations late in the fourth quarter of 2025. The Cranberry Point and Cross Town BESS projects will deliver capacity and energy services to the Independent System Operator of New England (ISO-NE). These facilities are intended to support grid reliability, balance intermittent renewable resources, and address growing power demand in the region amid conventional power plant retirements and expanding data centre operations. In 2024, Plus Power closed debt financing for the Cranberry Point project with First Citizens Bank, Nord LB, Investec Bank, and Siemens Financial Services. In the same year, debt financing for the Cross Town project was arranged with Nord LB, Investec Bank, and Siemens Financial Services. Across both projects, the company has raised over $290 million in debt financing, which includes construction-to-term loans, tax equity bridge, and letter of credit facilities.

PR Newswire
Nov 25th, 2024
Plus Power Battery Storage Project Wins Public Service Company Of New Mexico Award

The 150 MW / 600 MWh project will support grid reliability and economic development in New Mexico, while moving New Mexico toward its clean energy goalsWin represents Plus Power's 6th announced market and 3rd large tolling agreementTHE WOODLANDS, Texas, Nov. 25, 2024 /PRNewswire/ -- 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

ROI-NJ
Aug 20th, 2024
Qe Solar Provides Maintenance Services For Plus Power’S Kapolei Energy Storage Project

QE Solar recently announced it is successfully providing maintenance services for the Kapolei Energy Storage project, which is developed and owned by Plus Power.The KES facility, located on Oahu, Hawaii, is the most advanced grid-scale battery energy storage system, or “BESS,” in the world, helping transition the state’s electric power from coal and oil to solar and wind.Springfield-based QE Solar serves the KES project out of its North American Electric Reliability Corp.-compliant remote operations center located in Springfield and maintains on-the-ground personnel on the island of Oahu to support high project availability.“As the leading third-party operator of BESS projects and one of the largest (operation & maintenance) providers in the United States, supporting both utility scale and (commercial & industrial) projects, we are extremely excited to be serving this critically important grid infrastructure project.” Ken Heissler, CEO of QE Solar, said. “The KES project provides among the highest level of battery-to-grid capacity percentage in the world, and we are very proud that Plus Power entrusted our utility operations team and NERC-compliant remote operations center for maintenance services on this groundbreaking project.”“We have consistently demonstrated our team’s diverse operating capabilities and in-depth knowledge when it comes to operating BESS and hybrid (photovoltaic) and BESS projects. We are extremely proud of our team for their continued commitment to excellence and integrating years of experience in BESS and PV to address the unique opportunities and challenges with successfully operating these next generation energy projects,” Ryan McCauley, vice president, business development, of QE Solar, said

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