Sustainable Energy Technologies (TSX VENTURE:STG), ("Sustainable Energy" or the
"Company") is pleased to announce that Prosol Invest Deutschland GmbH ("Prosol
Invest") will standardize its market leading Sonnenbatterie product line for
global markets around Sustainable Energy's Bidirex smart grid energy storage
inverter platform. (See  

Prosol has increased its initial order for Bidirex inverters and has accelerated
inverter deliveries. 

The Sonnenbatterie line of solar based residential and commercial management
systems will be introduced to the North American market for the first time at
the Inter-solar North America Exhibit at Moscone Center in San Francisco,
California, from July 9 - 11. Sustainable Energy personnel will be on hand at
the Sonnenbatterie booth (Booth #8245) to provide technical background and
support on the features and functionality of the Bidirex inverter that is
powering Sonnenbatterie products. 

"We are pleased with these developments and proud to be able to play a role in
contributing to the Sonnenbatterie success everywhere. Prosol Invest's decision
to standardize on the Bidirex energy storage inverter validates our core design
philosophy to deliver a globally certified platform that is software
configurable for multiple market applications," said Justin Holland, COO of
Sustainable Energy. "The result is lower cost, higher reliability, and the
ability to quickly develop and deploy integrated product solutions in response
to changing market conditions."  

About Bidirex 

The Bidirex inverter is a high efficiency, bi-directional, grid-interactive
inverter, specifically designed to connect distributed low voltage generation
and storage systems to smart grids and micro-grids. The Bidirex inverter
combines the highly flexible "AC coupled" design, which enables complete
flexibility to retrofit or build out system incrementally, with the highest
round trip electrical conversion efficiencies in the power industry. Bidirex
moves seamlessly from grid-interactive to grid-independent operating modes and
is easily integrated with most advanced battery technologies. 

About PROSOL Invest 

Based near Kempten Germany, PROSOL Invest Deutschland GmbH ("Prosol Invest") is
the German market leader for intelligent lithium based storage systems.
Sonnenbatterie is a highly intelligent lithium based solar energy storage
system, which includes multiple added values, such as smart home, smart meter
and solar PV monitoring. Sonnenbatterie is available in a full range of system
sizes to cover the demand of small families to high end homes as well as small
to medium-sized businesses or farms. Sonnenbatterie's "AC coupled" design makes
it ideal to retrofit existing PV systems as well as for new installations. On
average, the users of Sonnenbatterie in Germany consume more than 75% of their
self generated electricity. 

About Sustainable Energy 

Sustainable Energy ( designs and manufactures advanced
power electronics for distributed smart grid and micro-grid applications.
Advanced power electronics are a critical interface between all distributed
generation and storage systems devices, ensuring the delivery of high quality
alternating current (AC) to the power grid as well as providing utility control
over the interconnection and power quality.  

Sustainable Energy's bi-directional low voltage energy storage inverter branded
BiDirex directly connects low voltage batteries to the grid with the power
industry's highest round trip (battery charging and discharging) efficiencies.
The inverter meets tough utility smart grid standards such as Germany's VDE 4105
which is becoming a global standard and enables full utility control over the
battery dispatch and power quality functions. 

Sustainable Energy's platform is based on patented breakthroughs in power
inverter design that enable its platform to convert high current/low voltage DC
into high quality AC with conversion efficiencies that are materially higher
than anything in the market with an inherently lower cost structure.  

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 features of our Bidirex inverter and statements
concerning the features of the Sonnenbatterie energy management system. 

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
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

Sustainable Energy Technologies Ltd.
Michael Carten
Chief Executive Officer

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