Beacon Power Officers Adopt 10b5-1 Plan.

WILMINGTON, Mass. -- Beacon Power Corporation (NASDAQ: BCON) announced that F. William Capp, President and Chief Executive Officer, James M. Spiezio, Secretary and Chief Financial Officer, and Matthew Lazarewicz, Vice President and Chief Technical Officer, have each adopted a stock trading plan in accordance with Rule 10b5-1 under the Securities and Exchange Act of 1934, as well as the company's policies with respect to sales of shares held by insiders.

Rule 10b5-1, which the SEC adopted in October 2000, permits officers and directors of public companies to adopt predetermined plans for purchasing and selling securities. One of the SEC's goals in creating 10b5-1 was to provide more information to shareholders and other market participants regarding insider transactions. The plans may be entered into only when the director or officer is not in possession of material, non-public information. Once established, the director or officer does not retain or exercise any discretion over sales of stock under the plan and the pre-planned trades can be executed at later dates as set forth in the plan, without regard to any subsequent material non-public information that the director or officer may receive.

About Beacon Power

Beacon Power Corporation designs sustainable energy storage and power conversion solutions that would provide reliable electric power for the utility, renewable energy, and distributed generation markets. Beacon's Smart Energy Matrix is a design concept for a megawatt-level, utility-grade flywheel-based energy storage solution that would provide sustainable power quality services for frequency regulation, and support the demand for reliable, distributed electrical power. Beacon is a publicly traded company with its research, development and manufacturing facility in the U.S. For more information, visit www.beaconpower.com.

Safe Harbor Statements under the Private Securities Litigation Reform Act of 1995:

Material contained in this press release may include statements that are not historical facts and are considered "forward-looking" within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements reflect Beacon Power Corporation's current views about future events and financial performances. These forward-looking statements are identified by the use of terms and phrases such as "believe," "expect," "plan," "anticipate," and similar expressions identifying forward-looking statements. Investors should not rely on forward-looking statements because they are subject to a variety of risks, uncertainties, and other factors that could cause actual results to differ materially from Beacon Power Corporation's expectation. These factors include: a short operating history; a history of losses and anticipated continued losses from operations; a need to raise additional capital combined with a questionable ability to do so; conditions in target markets; no experience manufacturing any product on a commercial basis; limited commercial contracts for sales to date; the dependence of sales on the achievement of product development and commercialization milestones; the uncertainty of the political and economic climate of any foreign countries into which Beacon hopes to sell or in which it operates, including the uncertainty of enforcing contracts and the potential substantial fluctuation in currency exchange rates in those countries; significant technological challenges to successfully complete product development; dependence on third-party suppliers; intense competition from companies with greater financial resources; possible government regulation that would impede the ability to market products; possible product liability claims and the negative publicity which could result; any failure to protect intellectual property; the possible need in the future to hire and retain key executives, particularly in light of the substantial workforce reductions during 2001 and 2002; the recent volatility in the stock price of companies operating in the same sector. These factors are elaborated upon and other factors may be disclosed from time to time in Beacon Power Corporation's filings with the Securities and Exchange Commission. Beacon Power Corporation expressly does not undertake any duty to update forward-looking statements.