OPEL International Inc.

OPEL International Inc.

June 16, 2008 11:35 ET

OPEL International Brings Solar Power to Medicine Hat, Alberta

SHELTON, CONNECTICUT and TORONTO, ONTARIO--(Marketwire - June 16, 2008) - OPEL International (TSX VENTURE:OPL) ("OPEL" or "the Company"), a leading global developer and supplier of concentrating photovoltaic panels (CPVs), today announced that it has signed an agreement for a new solar installation in the City of Medicine Hat, Alberta.

The 5 kW system will use Opel's state-of-the-art Mark I high concentration photovoltaic panels, combined with the OPEL-FEiNA dual axis trackers, and the SUNERGY CPV Inverter supplied by Sustainable Energy Technologies (TSX VENTURE:STG). Funding for the installation has been secured from the city of Medicine Hat. Procurement for the installation is set to begin immediately, enabling operational testing during the important summer season.

"With the highest solar radiation in Canada, Medicine Hat is an ideal location for a concentrated PV installation, " said Robert Malton, Business Development Manager for Opel International. " We applaud the Province of Alberta and the City of Medicine Hat for their leadership and commitment to renewable energy and the development of the solar industry. This trial will lay the framework for future policies and deployments of solar."

The City of Medicine Hat, which owns and operates its own electrical utility, is exploring a variety of renewable energy technologies to expand its power generation portfolio.

"This high concentration photovoltaic installation will help us understand the viability of adopting this technology on a larger scale in the future," said Russell Smith, manager of the city's environmental management division. "Opel and Sustainable Energy have approached the project with unique technologies that bring tangible benefits to system level performance and economics."

About OPEL International

With operations headquartered in Shelton, CT and Toronto ON, OPEL designs, manufactures and markets innovative, state-of-the-art solar technology products designed to convert solar energy into electricity - at the least possible cost and greatest efficiency.

The Company's products are based on technology developed in cooperation with the University of Connecticut (Storrs, CT) and the Canadian National Research Centre (Ottawa, ON). A leader in gallium arsenide and solar photovoltaic technology, the Company has been awarded 23 patents and has 23 more patents pending. OPEL's common shares trade on the TSX Venture Exchange under the symbol "OPL". For more information about OPEL, please visit the Company's website at www.opelinc.com.

About Sustainable Energy Technologies

Based in Calgary, Alberta, Sustainable Energy Technologies (www.sustainableenergy.com) designs, manufactures and distributes power inverters for distributed alternative energy applications, including solar PV systems, small wind power systems and energy storage systems, such as batteries and stationary fuel cells.

Sustainable's SUNERGY™ solar inverter is an "extra low voltage" platform which offers several distinct advantages over high voltage inverters for grid connected solar PV systems, especially for thin film rooftop solar PV systems and for building integrated PV applications.


Michel Lafrance, Secretary

Investors are cautioned that except for statements of historical facts, certain statements contained in this news release may include forward-looking information with respect to the Company. Such forward-looking statements or information are based on current expectations, estimates and projections formulated using assumptions currently believed to be reasonable and involving a number of risks and uncertainties which could cause actual results to differ materially from those anticipated. The Company does not undertake any obligation to update publicly or revise any forward-looking statements or information, whether as a result of new information, future events or otherwise, unless so required by applicable securities laws.

The TSXV has not reviewed and does not accept responsibility for the adequacy or accuracy of this release.

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