WilderHill Clean Energy Index ETF to Begin Trading on Amex March 3, 2005

WilderHill Clean Energy Index ETF to Begin Trading on Amex March
3, 2005 


SAN DIEGO, Calif., March 1  /PRNewswire-FirstCall/ -- This Thursday,
PowerShares Capital Management LLC, will introduce a new exchange traded fund
(ETF) based on the WilderHill Clean Energy Index, the first index comprised of
companies focused on developing renewable sources of energy, clean energy
technologies and environmentally-friendly technologies within the energy
sector.  The "PowerShares WilderHill Clean Energy Portfolio" (AMEX:PBW) will
begin trading on the American Stock Exchange March 3, 2005 and will replicate
the WilderHill Clean Energy Index.

The WilderHill Clean Energy Index was developed by Dr. Robert Wilder as a
benchmark for the clean and renewable energy sector.  According to industry
research, the total clean energy market for wind, solar and fuel cells will
grow to $92 billion in 2013, roughly seven times its present size.  Lower costs
from advances in technology are helping fuel the growth in alternative energy
investment.  According to the U.S. Department of Energy, the cost of wind and
solar technology has declined by 80% over the past two decades.  As the prices
of crude oil and other petroleum products remain near historic highs,
investment in the development and use of alternative sources of energy becomes
more attractive and cost effective.  Thirteen states now require utilities to
obtain a portion of their electricity from renewable sources.

Nonpolluting alternative energy sources including wind, solar, hydroelectric,
bio-fuel, geothermal, hybrid automotive and fuel cells have become
multi-billion dollar markets in recent years.  The WilderHill Clean Energy
Index uses modified equal dollar weighting and is composed of companies that
are working in six clean energy areas:

   (1)  Power Delivery and Conservation (companies working on technologies
        that match power loads to outputs, conversion of DC to AC, etc.);

   (2)  Cleaner Utilities (companies focused on cleaner methods of making
        electric power including wind, solar, bio-fuel, geothermal and
        hydroelectric);

   (3)  Energy Conversion (companies developing devices to convert fuels
        such as bio-fuels to electric power);

   (4)  Cleaner Fuels (companies involved in researching the production of
        hydrogen as a power source for such things as personal electronic
        devices and automobiles);

   (5)  Energy Storage (companies creating products that store energy);

   (6)  Renewable Energy Harvesting (producers of renewable energy and
        manufacturers of products that are used to capture and convert
        renewable energy such as solar, wind, and bio-fuels.)

   The following 37 companies comprise the WilderHill Clean Energy Index.

   WilderHill Clean Energy Index Components as of: 02/25/05

   Company Name                             Symbol        % Weighting

   Distributed Energy Sys                   DESC          4.53 %
   Evergreen Solar                          ESLR          4.35 %
   Plug Power                               PLUG          3.74 %
   Medis Technologies                       MDTL          3.52 %
   FuelCell Energy                          FCEL          3.37 %
   Maxwell Technologies                     MXWL          3.35 %
   Energy Conv Devices                      ENER          3.30 %
   Itron Inc                                ITRI          3.24 %
   Power Integrations                       POWI          3.21 %
   Zoltek Co                                ZOLT          3.19 %
   Scottish Power Ads                       SPI           3.17 %
   Amer Power Conversion                    APCC          3.03 %
   Kyocera Corp Adr                         KYO           3.01 %
   Kemet Corp                               KEM           2.98 %
   International Rectifier Corporation      IRF           2.92 %
   Capstone Turbine                         CPST          2.84 %
   Hydrogenics Corp                         HYGS          2.80 %
   Intermagnetics Genl                      IMGC          2.80 %
   Ultralife Batteries                      ULBI          2.74 %
   Ballard Power Systems                    BLDP          2.69 %
   Quantum Fuel Sys Tech                    QTWW          2.64 %
   Active Power                             ACPW          2.58 %
   Emcore Corp                              EMKR          2.54 %
   IMPCO Technologies                       IMCO          2.51 %
   Mechanical Technology                    MKTY          2.39 %
   C&D Technologies                         CHP           2.38 %
   Echelon Corp                             ELON          2.35 %
   Magnetek Inc                             MAG           2.20 %
   Amer Superconductor                      AMSC          2.01 %
   IDACORP Inc                              IDA           1.92 %
   Central VT Pub Svc                       CV            1.90 %
   Power-One                                PWER          1.86 %
   Calpine Corp                             CPN           1.77 %
   Air Products & Chem                      APD           1.65 %
   Praxair Inc                              PX            1.57 %
   BOC Group Ads                            BOX           1.56 %
   MGP Ingredients                          MGPI          1.38 %



For additional information and further details about the WilderHill Clean
Energy Index, please visit http://www.wildershares.com/, or contact CTA Public
Relations at 303-665-4200.

   Contact:  Bevo Beaven, Vice President
             Bill Conboy, Senior Account Executive
             CTA Public Relations
             303-665-4200
             ; 

DATASOURCE: WilderShares LLC



CONTACT:  Bevo Beaven, Vice President, , or Bill Conboy,

Senior Account Executive, , both of CTA Public Relations,

[phone], for WilderShares LLC 



Web site:  http://www.wildershares.com/ 

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