Sustainable Energy To Deliver up to 240 MW of SUNERGY Solar Power Inverters for Ontario Market

Sustainable Energy To Deliver up to 240 MW of SUNERGY Solar Power Inverters for Ontario Market Made-in-Ontario Inverters for Rooftop and Ground Mount Systems on Display at CanSIA Solar Showcase

Sustainable Energy To Deliver up to 240 MW of SUNERGY Solar Power Inverters for Ontario Market


Made-in-Ontario Inverters for Rooftop and Ground Mount Systems on Display at CanSIA Solar Showcase

Toronto, Ontario - December 3, 2009 - Sustainable Energy Technologies Ltd. (TSXV: STG), ("Sustainable Energy") today announced that it has begun taking orders for its SUNERGYTM line of inverters, to be manufactured in the Province of Ontario.

Highlights

SUNERGY products meet Ontario "domestic content" requirements for solar PV systems;

Q1, 2010 base load capacity of 40MW will expand to 240 MW to meet North American demand;

SUNERGY inverters represent the only outdoor-rated product for Canada's extreme climate, enabling lower cost ground mount solar PV systems and safer, lower cost rooftop PV systems;

Sustainable Energy to host workshop on commercial rooftop solar economics in the Ontario market on December 9 in Toronto.

Sustainable Energy will manufacture the second generation version of its patented SUNERGY inverter in the Province of Ontario. Sustainable Energy's commitment to Ontario reflects the Province's emerging leadership of the North American solar PV market resulting from the recently enacted Feed-In Tariffs ("FIT") and the Province's commitment to build a sustainable Canadian solar technology and manufacturing infrastructure.

Sustainable Energy will be demonstrating its made-in-Ontario inverters at the CanSIA Solar Showcase, taking place at the Westin Harbour Castle December 7-8 in Toronto, Ontario. On December 9, Sustainable Energy will be hosting a workshop to review commercial rooftop solar economics in the Ontario market.

Workshop details and registration information can be found at http://www.cansia.ca/corporateworkshops.
"Sustainable Energy's inverters incorporate patented technologies that are Canada's most significant contribution yet to expanding the use of solar power around the world," said Robert Bucher, President and CEO of Sustainable Energy. "For the first time, the superior performance, intrinsic safety, and design flexibility of parallel system architecture is available at a competitive price. With high conversion efficiencies, the SUNERGY technology is what the industry needs to lower costs and propel solar power into the mainstream."

In rooftop applications, the extra low operating voltage of the SUNERGY platform enables a parallel system architecture that is inherently safe and that can be installed and maintained without the need for PV specialists, significantly reducing the installed system cost and increasing investor yields.

In ground based applications, SUNERGY inverters offer higher system yields, less downtime and easier installation and maintenance than large, central inverters. Multiple smaller inverters like SUNERGY are increasingly displacing central inverters in ground based applications to improve system performance.

The SUNERGY inverter has also been specifically designed with Canadian outdoor installations in mind. It is the only inverter that will deliver full power all day with ambient temperatures ranging from minus 400C to plus 600C, eliminating the need for enclosures or indoor mounting.

Sustainable Energy will be exhibiting at booths 401, 403, 500 and 502 at CanSIA. Executive Chairman and Co-Founder, Michael Carten will participate in "The CEO's Panel" at CanSIA on Tuesday, December 8 from 9:00 a.m. to 10:30 a.m.

About Sustainable Energy: Sustainable Energy (www.sustainableenergy.com) designs, manufactures and distributes power inverters for grid-connected solar PV systems. Advanced power inverters are a critical enabler of all modern solar PV power systems converting the direct current ("DC") power output of the solar PV modules into the high quality alternating current ("AC") power required by the power grid. Advanced power inverters also optimize the performance of the solar PV modules and maintain the integrity and safety of the interconnection with the power grid.
In rooftop applications, the extra low operating voltage of the SUNERGY platform enables a system architecture that is inherently safe and that can be installed and maintained by most building trades without the need for PV specialists, significantly reducing the installed system cost and increasing investor yields.

In ground-based applications, multiple SUNERGY inverters offer higher system yield, less downtime and easier installation and maintenance, than larger "central" inverters. For these reasons, multiple smaller inverters like SUNERGY are increasingly displacing central inverters in European ground based applications - where system performance rather than name plate capacity is the driver.

Sustainable Energy's technologies are the subject of multiple patents issued by and pending with the US Patent and Canadian Patent Offices.

Forward Looking Information

The reader is advised that some of the information herein may constitute forward-looking statements within the meaning assigned by National Instruments 51-102 and other relevant securities legislation. In particular, we include: statements concerning the impact of our technology on solar PV system performance; statements concerning the risks associated with high system operating voltages and statements concerning the potential for sales in the markets we have entered. Forward-looking information is not a guarantee of future performance and involves a number of risks and uncertainties. Many factors could cause the Company's actual results, performance or achievements, or future events or developments, to differ materially from those expressed or implied by the forward-looking information. Readers are cautioned not to place undue reliance on forward-looking information, which speaks only as of the date hereof. The Company does not undertake any obligation to release publicly any revisions to forward- looking information contained herein to reflect events or circumstances that occur after the date hereof or to reflect the occurrence of unanticipated events, except as may be required under applicable securities laws.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

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