Beacon Power Completes 1000 Continuous Hours Of Performance Testing on 6kWh Flywheel

Key Subsystems of New-generation Flywheel Energy Storage Systems

Pass Rigorous Initial Tests



Apr 23, 2001, 01:00 ET from Beacon Power Corporation

    WILMINGTON, Mass., April 23 /PRNewswire Interactive News Release/ --
 Beacon Power Corporation (Nasdaq:   BCON) a leading manufacturer of flywheel
 energy storage systems that provide highly reliable, high-quality
 uninterruptible electric power, today announced the successful completion of
 more than 1000 hours of continuous operation of key subsystems for its next-
 generation 6kWh Flywheel Energy Storage System.  Beacon also announced that
 its 6kWh prototypes will be tested during the second quarter of 2001 and Beta
 test units will be delivered to customers in the fourth quarter of 2001.
     Subsystems that completed these tests included such critical components as
 the flywheel's integrated vacuum system, magnetic bearing system, and
 composite rotor structure.  The new 6kWh system will use the same control
 electronics developed for Beacon's current 20C1000 2kWh flywheel product.
 Those electronics are currently undergoing testing by Underwriters Laboratory.
     "As we discussed in our March 27, 2001 conference call, the dramatic
 technological advancements we have made since our IPO have allowed us to
 bypass our intermediate-generation 4kWh product and move directly to a 6kWh
 system," said Beacon Power President and Chief Executive Officer William E.
 Stanton.  "These results are an important milestone for Beacon in serving our
 telecommunications market, and are further confirmation that we are making the
 correct decision to accelerate our product development timetable by nearly
 one-year."
     Continued Stanton, "The 6kWh flywheel is ideally sized from a power
 capacity standpoint for our telecommunications and cable customers.  It stores
 3 times the energy of our 2kWh product in the same footprint and uses only one
 set of power electronics, rather than three required to support three separate
 2kWh units.  This allows our customers to maximize the revenue generating
 potential of their remote communication sites.  And, given the high life-cycle
 cost for lead-acid batteries, which are replaced every three years on average,
 we expect this new 6kWh product to compete effectively in the market.
 Moreover, the inherent simplicity of our flywheels and their insensitivity to
 extreme temperatures make it possible to operate these units in hot or desert
 climates without active thermal control, a significant cost advantage over
 batteries and generator products."
     Commenting on a recently announced micro-turbine product with flywheel
 ride-through, Stanton said, "The premium power quality marketplace is large
 enough for a number of technologies.  However, we believe our flywheel energy
 storage systems offer compelling advantages for many communications
 applications.  Beacon's products are designed to require no scheduled
 maintenance for 20 years and are unaffected by swings in temperature and
 humidity.  They are silent in operation, avoid any permitting or safety issues
 associated with storing or replenishing fuel on site, and have no issues
 regarding their ability to start when called upon.  Our 6kWh product should
 also have a far shorter adoption cycle because of the more than two years of
 intensive testing and evaluation of our flywheel products by customers in the
 communications field."
 
     About Beacon Power Corporation
     Beacon Power Corporation designs, manufactures, and markets advanced
 flywheel technology products that provide reliable electric power required by
 the information economy.  Beacon Power Corporation is the only company to have
 developed a flywheel made from proprietary composite materials that can store
 and deliver the energy needed for long-duration backup of remote
 communications sites.  Beacon Power Corporation is initially targeting this $4
 billion communications segment of the $12 billion power quality and
 reliability market with products that offer significant advantages over
 environmentally hazardous lead-acid battery back-up power systems, including
 higher reliability, longer life, reduced maintenance, quicker recharging,
 remote monitoring and environmental friendliness.
     For more information, please contact Tom Nealon, Director of Investor
 Relations at Beacon Power Corporation, 978.694.9121; fax 978.694.9127; email
 ir@beaconpower.com; or write to 234 Ballardvale Street, Wilmington, MA 01887.
 Visit Beacon Power on the Internet at www.beaconpower.com
 
     Safe Harbor Statements under the Private Securities Litigation Reform Act
 of 1995:
     Material contained in this press release may include statements, which 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 expectations, and Beacon Power Corporation expressly does not
 undertake any duty to update forward-looking statements.  These factors
 include Beacon Power Corporation's short operating history, its history of
 losses and anticipated continued losses from operations, its limited
 experience manufacturing Flywheel Energy Storage Systems on a commercial basis
 including the fact that no commercial contracts have been executed to date,
 the dependence of Beacon Power Corporation's sales on the achievement of
 product development and commercialization milestones, significant
 technological challenges including the risk of successfully developing the
 2kWh and 6kWh Flywheel Energy Storage Systems as well as the commercial
 viability of each of these flywheel products, Beacon Power Corporation's
 dependence on third-party suppliers for key component parts, intense
 competition from companies with greater financial resources than Beacon Power
 Corporation, the risk that government regulation may impede Beacon Power
 Corporation's ability to market its products, possible product liability
 claims that may or may not result from safety failures of Beacon Power
 Corporation's flywheels and the negative publicity which could result, any
 failure to protect Beacon Power Corporation's intellectual property, any
 failure to hire and retain key executives, the lack of availability of
 additional financing, the recent volatility in the stock price of companies
 operating in the same sector as Beacon Power Corporation, control by Beacon
 Power Corporation's controlling shareholders and the limited ability of other
 investors to influence the outcome of matters requiring shareholder approval,
 and conditions in the communications industry that comprises Beacon Power
 Corporation's initial target market, but are not limited to, factors detailed
 from time to time in Beacon Power Corporation's filings with the Securities
 and Exchange Commission.
 
                     MAKE YOUR OPINION COUNT -  Click Here
                http://tbutton.prnewswire.com/prn/11690X44508851
 
 

SOURCE Beacon Power Corporation
    WILMINGTON, Mass., April 23 /PRNewswire Interactive News Release/ --
 Beacon Power Corporation (Nasdaq:   BCON) a leading manufacturer of flywheel
 energy storage systems that provide highly reliable, high-quality
 uninterruptible electric power, today announced the successful completion of
 more than 1000 hours of continuous operation of key subsystems for its next-
 generation 6kWh Flywheel Energy Storage System.  Beacon also announced that
 its 6kWh prototypes will be tested during the second quarter of 2001 and Beta
 test units will be delivered to customers in the fourth quarter of 2001.
     Subsystems that completed these tests included such critical components as
 the flywheel's integrated vacuum system, magnetic bearing system, and
 composite rotor structure.  The new 6kWh system will use the same control
 electronics developed for Beacon's current 20C1000 2kWh flywheel product.
 Those electronics are currently undergoing testing by Underwriters Laboratory.
     "As we discussed in our March 27, 2001 conference call, the dramatic
 technological advancements we have made since our IPO have allowed us to
 bypass our intermediate-generation 4kWh product and move directly to a 6kWh
 system," said Beacon Power President and Chief Executive Officer William E.
 Stanton.  "These results are an important milestone for Beacon in serving our
 telecommunications market, and are further confirmation that we are making the
 correct decision to accelerate our product development timetable by nearly
 one-year."
     Continued Stanton, "The 6kWh flywheel is ideally sized from a power
 capacity standpoint for our telecommunications and cable customers.  It stores
 3 times the energy of our 2kWh product in the same footprint and uses only one
 set of power electronics, rather than three required to support three separate
 2kWh units.  This allows our customers to maximize the revenue generating
 potential of their remote communication sites.  And, given the high life-cycle
 cost for lead-acid batteries, which are replaced every three years on average,
 we expect this new 6kWh product to compete effectively in the market.
 Moreover, the inherent simplicity of our flywheels and their insensitivity to
 extreme temperatures make it possible to operate these units in hot or desert
 climates without active thermal control, a significant cost advantage over
 batteries and generator products."
     Commenting on a recently announced micro-turbine product with flywheel
 ride-through, Stanton said, "The premium power quality marketplace is large
 enough for a number of technologies.  However, we believe our flywheel energy
 storage systems offer compelling advantages for many communications
 applications.  Beacon's products are designed to require no scheduled
 maintenance for 20 years and are unaffected by swings in temperature and
 humidity.  They are silent in operation, avoid any permitting or safety issues
 associated with storing or replenishing fuel on site, and have no issues
 regarding their ability to start when called upon.  Our 6kWh product should
 also have a far shorter adoption cycle because of the more than two years of
 intensive testing and evaluation of our flywheel products by customers in the
 communications field."
 
     About Beacon Power Corporation
     Beacon Power Corporation designs, manufactures, and markets advanced
 flywheel technology products that provide reliable electric power required by
 the information economy.  Beacon Power Corporation is the only company to have
 developed a flywheel made from proprietary composite materials that can store
 and deliver the energy needed for long-duration backup of remote
 communications sites.  Beacon Power Corporation is initially targeting this $4
 billion communications segment of the $12 billion power quality and
 reliability market with products that offer significant advantages over
 environmentally hazardous lead-acid battery back-up power systems, including
 higher reliability, longer life, reduced maintenance, quicker recharging,
 remote monitoring and environmental friendliness.
     For more information, please contact Tom Nealon, Director of Investor
 Relations at Beacon Power Corporation, 978.694.9121; fax 978.694.9127; email
 ir@beaconpower.com; or write to 234 Ballardvale Street, Wilmington, MA 01887.
 Visit Beacon Power on the Internet at www.beaconpower.com
 
     Safe Harbor Statements under the Private Securities Litigation Reform Act
 of 1995:
     Material contained in this press release may include statements, which 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 expectations, and Beacon Power Corporation expressly does not
 undertake any duty to update forward-looking statements.  These factors
 include Beacon Power Corporation's short operating history, its history of
 losses and anticipated continued losses from operations, its limited
 experience manufacturing Flywheel Energy Storage Systems on a commercial basis
 including the fact that no commercial contracts have been executed to date,
 the dependence of Beacon Power Corporation's sales on the achievement of
 product development and commercialization milestones, significant
 technological challenges including the risk of successfully developing the
 2kWh and 6kWh Flywheel Energy Storage Systems as well as the commercial
 viability of each of these flywheel products, Beacon Power Corporation's
 dependence on third-party suppliers for key component parts, intense
 competition from companies with greater financial resources than Beacon Power
 Corporation, the risk that government regulation may impede Beacon Power
 Corporation's ability to market its products, possible product liability
 claims that may or may not result from safety failures of Beacon Power
 Corporation's flywheels and the negative publicity which could result, any
 failure to protect Beacon Power Corporation's intellectual property, any
 failure to hire and retain key executives, the lack of availability of
 additional financing, the recent volatility in the stock price of companies
 operating in the same sector as Beacon Power Corporation, control by Beacon
 Power Corporation's controlling shareholders and the limited ability of other
 investors to influence the outcome of matters requiring shareholder approval,
 and conditions in the communications industry that comprises Beacon Power
 Corporation's initial target market, but are not limited to, factors detailed
 from time to time in Beacon Power Corporation's filings with the Securities
 and Exchange Commission.
 
                     MAKE YOUR OPINION COUNT -  Click Here
                http://tbutton.prnewswire.com/prn/11690X44508851
 
 SOURCE  Beacon Power Corporation