Private company

Beacon Power

Logo: Own work, Non-free logo, via Wikipedia3

Beacon Power, LLC is an American limited liability company and wholly owned subsidiary of RGA Investments LLC. Founded in 1997 and headquartered in Tyngsboro, Massachusetts, it specializes in flywheel-based energy storage. Beacon designs and develops products aimed at utility frequency regulation for power grid operations.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

1997Founded1

Beacon Power, LLC is an American limited liability company and wholly owned subsidiary of RGA Investments LLC. Founded in 1997 and headquartered in Tyngsboro, Massachusetts, it specializes in flywheel-based energy storage. Beacon designs and develops products aimed at utility frequency regulation for power grid operations.2

The story

Beacon Power was founded in Woburn, Massachusetts in 1997 as a subsidiary of SatCon Technology Corporation, a maker of alternative energy management systems. The company went public in 2000. In June 2008, Beacon Power opened new headquarters in Tyngsboro, with financing from Massachusetts state agencies.

In 2009 Beacon received a loan guarantee from the United States Department of Energy (DOE) for $43 million to build a 20-megawatt flywheel power plant in Stephentown, New York. The DOE loan for $43 million was awarded in 2010, with the plant to be online by 2011. It also was awarded $24 million from the DOE for a second flywheel plant.

On 30 October 2011, the company filed for Chapter 11 bankruptcy protection under in the United States bankruptcy court in Delaware. As part of the bankruptcy court proceedings, Beacon Power agreed on November 18 to sell its Stephentown facility to repay the DOE loan.

As of 6 February 2012, Rockland Capital, a private equity firm, bought the plant and most of the company's other assets for $30.5 million. Rockland Capital stated it intended to rehire most of staff and to provide the capital to build a second 20MW plant in Pennsylvania.

On May 1, 2018, the investment arm of RGA Labs acquired the company. The physical assets, the 20 MW NY Facility named Stephentown Spindle and the 20 MW facility in Hazle Township, Pennsylvania were sold to Convergent Energy and Power in 2018.

From Wikipedia’s article on Beacon Power, shared under CC BY-SA 4.0.4

Timeline

  1. 1997Founded Founded1

Funding

Where the company's money came from, by calendar year: private offerings filed with the SEC, federal grants, loans, contracts and other assistance from USAspending.gov, and PPP loans from the SBA. Each bar links to the records below.

Money received by year$184.2K 2021–2021
Money received by yearMoney received by year, 2021–2021: $184.2K in all. PPP loans $184.2K.$0$50K$100K$150K$200K2021 · PPP loans: $184.2K2021
Figures by year
YearPPP loansTotal
2021$184.2K$184.2K

PPP loans

Paycheck Protection Program loans of $150,000 and up, approved April 2020 to July 2021, from the SBA5. Matched to this company by name and state.

  1. Feb 5, 2021$184.2K PPP loan (second draw) from JPMorgan Chase Bank, National Association5To BEACON POWER LLC, Tyngsboro MA; $186.0K forgiven Feb 2, 2022

Sources

The numbers on this page point here. Each one links to the record it came from.

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