, Progress Energy Carolinas
customers, seeking relief from the heat and humidity, set a record for
electricity usage Tuesday, and with temperatures at or above 100 degrees
today, another peak-demand record is possible.
Meanwhile, Progress Energy recommends the following tips to help save
electricity and dollars this season:
* Set your thermostat on the highest comfortable setting. But remember that fans cool people, not
rooms, so turn them off in unoccupied rooms.

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com/cgi-bin/prnh/20020923/CHM008LOGO-c )
Between 4 and 5 p. Tuesday, Progress Energy's 1.

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Don't block registers and return vents with furniture or
drapes.

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at
ASME Electric Power Conference, Chicago, Ill.

WHEN: Wednesday, April 6, 2005

WHO: John Speranza, Proton Energy Systems, Inc.
* When possible, use your microwave or countertop appliances for cooking
instead of the oven or stove.9 million customers in North Carolina,
South Carolina and Florida.

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Proton Energy Systems, Inc.

Energy Saving Tips
Just a few small changes in your household routines can add up over the
year to big savings on your utility bills. Progress Energy also includes nonregulated
operations covering competitive generation, energy marketing, natural gas
exploration and fuel extraction.

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C.
* Close blinds , drapes and shades during the hottest part of the day.

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(Logo: http://www.
* Use ceiling fans and portable fans to keep air moving.
In existing homes, wall insulation may be too expensive to install, so
concentrate on attic and floor insulation.

Progress Energy's Web site is a valuable resource to help customers save
money on monthly energy bills. Learn what the
biggest household energy wasters are and how to easily fix them.

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com under News and
Events

BACKGROUND: Historically, onsite hydrogen generation systems have been
deployed at remote, hard to reach locations around the globe. In recent years
however, onsite hydrogen generation systems have been adopted by an increasing
number of power plants as an alternative method for cooling electric power
generating equipment., a subsidiary of Distributed Energy Systems
Corp. Dirty filters can increase operating costs
by 20 percent. The following interactive energy saving tools
can help you find ways to save energy in your home
(http://www.

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For more information visit http://www .

Progress Energy Customers Set All-Time Peak for Usage; New Record Possible Today

That
figure surpassed the previous record of 12,004 MWh set the morning of Jan.

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Paper at ASME 2005 Electric Power Conference in Chicago

WALLINGFORD, Conn.

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com. The company's holdings include two
electric utilities serving more than 2.

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WHERE: Proton Energy System Website: http://www.
* Because humid air holds more heat, take lukewarm showers and baths and
run the bathroom exhaust fan to reduce humidity in your home. Progress Energy has tips on how to
reduce your energy costs on your home, yard and appliances. Benefits are listed below:

Energy analysis graphs
* Compare your electric usage this year and last year to the average
temperature by month
* Compare your past 12 months' electric usage to the high, low and average
temperature for the same period
* Compare the average temperatures per month for the last 24 months

Energy analysis details
View the last 24 months of your electric usage, including:
* Date the bill was mailed
* Number of days in billing cycle
* kWh (kilowatt-hour) usage per month
* Daily kWh usage
* Average, low and high temperature for the month
* Click on a month and get daily temperature information for the month

Progress Energy (NYSE: PGN), headquartered in Raleigh, N.

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, designs, develops, and manufactures Proton Exchange Membrane, or PEM,
electrochemical products that it employs in hydrogen generating devices and in
regenerative fuel cell systems that function as power generating and energy
storage devices.m.
Cooling systems work best when they maintain a steady temperature,
instead of making large adjustments .progress-energy.

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protonenergy.4 million customers in
the Carolinas used an estimated 12,232 megawatt -hours (MWh) of electricity, as
cooling systems worked overtime to battle triple-digit temperatures . Do not turn your
cooling system off unless you'll be gone for an extended period of time.

Progress Energy recommends R-
30 insulation for ceilings, R-19 for floors and R-16 for outside walls.com/custservice/carres/saving/index.

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(Nasdaq: DESC), and Cetrom Inc.
You may also log in to "Online Account Access" via the Web site, and view
energy analysis details and graphs for further information on your specific
home.com.

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Proton Energy's HOGEN(R) hydrogen generators produce
hydrogen from electricity and water in a clean and efficient process using its
proprietary PEM technology.newscom.
* Make sure your home is properly insulated.

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The previous summer peak -demand record was 11,977 MWh set in July
2002.asp):

Home Energy Check
This tool is designed to help you identify the best ways to save energy in
your home and find the resources to make the savings happen. For more information about Progress Energy,
visit the company's Web site at http://www.

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On-Site Continuous Hydrogen Generators Producing Solid Results Cost Savings for Power Plants

protonenergy.
When the method of continuous hydrogen replenishment is coupled with the
implementation of onsite hydrogen generation, advantages may include increase
generator efficiency , lower fuel usage and emissions, reduced maintenance and
hydrogen costs, and increased safety.
* Change your filters monthly. Using a fan will
make the room feel about 3 to 4 degrees cooler, and fans only use about
as much energy as a light bulb., is a Fortune
250 diversified energy company with more than 24,000 megawatts of generation
capacity and $9 billion in annual revenues .

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WHAT: Summary of "The Positive Effects of Utilizing Continuous Hydrogen
Replenishment in Electric Power Generators" presented jointly by
Proton Energy Systems , Inc.
While Wednesday's forecast calls for more of the same, Progress Energy
does not anticipate problems meeting the heightened customer demand.progress-energy.C.

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and
Lawrence Dusold, Cetrom, Inc. RALEIGH, N. This
keeps the sun's rays from heating your house .

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About Proton Energy Systems, Inc. 24
this year.