Sustainable Commissions Final Assembly to Deliver 2012 Demand

TORONTO, ONTARIO--(Marketwire - Sept. 28, 2011) - Sustainable Energy Technologies Ltd. (TSX VENTURE:STG) ("Sustainable Energy") is pleased to announce, in order to satisfy increasing North American demand, full scale inverter production at their Melitron contract facility in Guelph, Ontario. The company will continue to execute on its business plan for targeted cost reductions and increased inverter shipments into the Canadian and United States markets.

Our joint partnership with Melitron and SRI allows Sustainable the ability to lever the simplicity of their final assembly process and quickly expand production capacity with very little capital investment.

"By tapping in to our key supply chain partners manufacturing expertise we have constructed a very agile, adaptable value chain" said Sustainable Energy CEO Michael Carten "reduced lead time and reliability will be critical to success and our model delivers both".

"We are pleased that Sustainable Energy Technologies has selected our Guelph facility to manufacture their solar inverter products for the North American market. The clean energy market has been a key focus for Melitron and the launch of inverter production for Sustainable Energy Technologies represents an important milestone for our company" Ted Turner, President of Melitron.

About Melitron Corporation

Founded in 1995 Melitron Corporation (www.melitron.com) is a full service contract manufacturer specializing in precision metal fabrication employing 120 people in Guelph Ontario. It designs and manufactures precision metal components, enclosures and assemblies primarily for Original Equipment Manufacturers (OEMs) competing in technology markets. Melitron has also established a strategic partnership with SRI North America, a Long Island, New York based contract manufacturer, specializing in electronics and electro-mechanical devices.

About Sustainable Energy:

Sustainable Energy (www.SustainableEnergy.com) is Canada's solar inverter company. The Company's patented inverter technologies are a breakthrough in power inverter design and capabilities for all forms of distributed generation and smart grid applications. The PARALEX inverter is the industry's only grid-interactive solar inverter which enables a "parallel" solar PV system architecture in higher power ratings at a cost and serviceability factor that is comparable to conventional inverters in the market. The benefits of parallel solar are: (i) 5% - 25% higher total system power output; (ii) a better fill factor enabling better coverage of available space; (iii) a simplified system design and installation; and (iv) the safety of extra low operating voltages which ensures the safety of building maintenance personnel, first responders, and tradesmen who may accidentally come into contact with system wiring. Sustainable Energy's technologies are the subject of multiple patents issued by and pending with the Canadian and US Patent Offices.

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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; and statements concerning demand for products; statements concerning Melitron, 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. Readers are also directed to the Risk Factors section of the Company's current Annual Information Form which may be found on its website or at www.sedar.com 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.