Sustainable Energy Technologies Ltd.

Sustainable Energy Technologies Ltd.

June 27, 2008 16:58 ET

Sustainable Offers Early Exercise of Warrants

CALGARY, ALBERTA--(Marketwire - June 27, 2008) - Sustainable Energy Technologies Ltd. ("Sustainable Energy" or the "Company") (TSX VENTURE:STG) has offered holders of common share purchase warrants issued by the Company as part of a Unit Offering on May 16, 2007, and exercisable at $0.30 per share until November 16, 2008, the right to exercise their warrants at a price of $0.25 per share, and to receive in exchange, one Common Share of the Company and one replacement warrant, exercisable at a price of $0.35 per share until May 16, 2009.

The Company's offer is open for acceptance until July 18, 2008. Any warrants not exercised by July 18, 2008 will remain unaffected and will continue to be exercisable at a price of $0.30 per share until November 16, 2008.

The net proceeds will be used to accelerate Sustainable's entry into the North American market, which is occasioned by the previously announced (May 26, 2008) joint distribution agreement with Ingeteam SA, and for general corporate purposes.

As of the date hereof, there are 16,249,750 warrants issued and outstanding.

About Sustainable Energy: Based in Calgary Alberta, Sustainable ( Energy Technologies designs and manufactures and distributes power inverters for distributed alternative energy applications, including solar PV and small wind power systems and energy storage systems, such as batteries and stationary fuel cells. Sustainable's SUNERGYTM solar inverter is an "extra low voltage" platform which offers several very distinct advantages over conventional high voltage inverters for grid connected solar PV systems, especially for thin film rooftop solar PV systems and building integrated PV applications, and for concentrated solar technologies.

Certain statements contained in this press release may be considered as forward-looking. Such forward-looking statements are subject to risks and uncertainties that could cause actual results to differ materially from estimated or implied results.

The TSX Venture Exchange does not accept responsibility for the adequacy or accuracy of this release.

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