Sustainable Energy Technologies Ltd.
TSX VENTURE : STG

Sustainable Energy Technologies Ltd.

May 11, 2011 08:30 ET

Rumble Energy Selects SUNERGY Inverters to Power Ontario PV Projects

Rumble's commitment to SUNERGY signals increasing penetration of Ontario market

TORONTO, ONTARIO--(Marketwire - May 11, 2011) - Sustainable Energy Technologies Ltd. (TSX VENTURE:STG) ("Sustainable Energy") Canada's solar inverter manufacturer and Rumble Energy Inc. ("Rumble Energy"), a leading Ontario system integrator, are pleased to announce that Rumble Energy has selected SUNERGY for its first two FIT installations located in Ontario with a total power output of 110kW.

Rumble Energy's projects will readily show the versatility, durability and increased system yield of SUNERGY inverters in all types of applications.

Project Size: 30 kW AC – 33.12 kW DC (10% oversized)
Project Name: Greater Sudbury Utilities 30 kW Dual Axis Test Array
Current Status: Completed
Inverter: 6x SUNERGY 5.0 kW 208V
Modules: 48x Conergy 230W, x48 CSI 230W, x48 Trina 230W
Racking: 6x Deger 5000HD
Program: FIT @ $44.2 cents.

Project Size: 80 kW AC - 101.52 kW DC (27% oversized)
Project Name: Undisclosed
Current Status: In Construction
Inverter: 16x SUNERGY 5.0 kW 240V
Modules: 432x REC 235W
Racking: Kinetic Angled Rooftop Racking
Program: FIT @ $71.3 cents.

"SUNERGY inverters were chosen for these projects based on their cost benefits over other optimization technologies, due to their cold weather rating, high yield parallel advantages and reduced balanced of system costs," said Kelly Rumble President & CEO of Rumble Energy.

"Over the past few years Rumble Energy has built a strong presence in the renewable energy market in Ontario. Today, they are one of the better recognized names in the industry," said Michael Carten CEO of Sustainable Energy. "These projects are a strong endorsement for the SUNERGY inverter, and the market penetration that our sales team is achieving."

About Rumble Energy: Rumble Energy (www.Rumble-Energy.com), located in Mississauga, Ontario, offers complete renewable energy systems. Specializing in developing client based commercial solar generation facilities. They are pioneering experts in all the aspects of commercial solar; from conception, feasibility, installation, to commissioning and will handle all the responsibilities of the project to benefit their clients and produce an efficient, profitable solar generation facility.

Rumble Energy is a leading renewable energy developer in Canada. With proven expertise in designing, building, and managing commercial solar photovoltaic power projects in Ontario. Their customers become leaders in green energy production by use of our innovative technologies and approaches.

With successful solar projects in operation, Rumble Energy is on the cutting edge of green technologies. We are constantly looking for newer and better technologies to increase the efficiency and effectiveness of their products and to serve their customers better.

About Sustainable Energy: Sustainable Energy (www.sustainableenergy.com) is Canada's solar inverter company. Sustainable Energy's patented inverter technologies represent a breakthrough in power inverter design and capabilities for all forms of distributed generation and smart grid applications.

The industry's only grid-interactive low-voltage solar inverter with high power ratings and high conversion efficiencies enables a "parallel" solar PV system architecture at cost that is a fraction of other parallel solar solutions 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) no more complex string calculations simplifies system design and installation; and (iv) extra low operating voltages eliminating the risk of serious injury or death from electrocution for installers or first responders.

Sustainable Energy's technologies are the subject of multiple patents issued by and pending with the Canadian US and International 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, it includes: statements concerning the impact of our technology on solar PV system performance; statements concerning the performance of solar trackers; statements concerning forecast production of SUNERGY inverters; and statements concerning the potential for growth in the solar industry. While management believes these statements to be accurate they are dependent on a wide range of factors beyond management's control and should not be viewed as a guarantee of the specific outcome. Forward-looking information is not a guarantee of future performance and involves a number of risks and uncertainties.

Many factors could cause the Companies' 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 Companies do 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.

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