Sustainable Energy Technologies (TSX VENTURE:STG), ("Sustainable Energy" or the
"Corporation") is forwarding news releases concerning the Sonnenbatterie product
line by PROSOL Invest Deutschland GmbH ("Prosol") that were released shortly
prior to the announced supply agreement between Prosol and Sustainable Energy.
(See Sustainable Energy Closes Multi-Megawatt Supply Contract with Market
Leading Solar Battery Integrator in Germany, May 16, 2013)

--  RWE Efficiency GmbH release dated April 26, 2013 and entitled "Solar
    Energy Storage: RWE Expands Product Line") can be found at: 
--  Kyocera release dated May 6, 2013 and entitled "Kyocera Markets Lithium
    Storage System from Prosol Invest") can be found at: 
--  Prosol release dated May 19, 2013 concerning the supply agreement with
    Sustainable Energy wherein it identified key competitive attributes of
    Sustainable Energy's "BiDirexT" inverter in the German solar storage
    market can be found at:

The referenced news releases are not Sustainable Energy's releases and are
provided only for informational purposes. The statements therein are not
Sustainable Energy's statements and may contain forward looking statements. The
reader is cautioned that actual results could differ materially from current
expectations and assumptions contained in such forward looking statements. 

About PROSOL Invest Deutschland GmbH 

Based near Kempten Germany, PROSOL Invest Deutschland GmbH is the German market
leader for intelligent lithium based storage systems and has many years of
experience with battery storage technologies and renewable energies. 

Sonnenbatterie is a highly intelligent lithium based solar storage system, which
is much more than just a battery. Sonnenbatterie includes various added values
such as smart home, smart meter and solar PV monitoring. Sonnenbatterie is
available in various system sizes to perfectly cover the demand of small family
to high end houses and small to medium-sized companies or farms. It is ideally
suited to retrofit existing PV systems as well as for new installations. On
average, the users of Sonnenbatterie consume more than 75% of their self
generated electricity. The technology is not only extensively tested, but has
also proven its functionality and reliability in the field since 2010.

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 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

The inverter's software configurable platform has been designed from the ground
up to be easily integrated into power management systems, with the industry's
only open industry standard communications software to support a highly cost
competitive OEM strategy and allowing rapid development of OEM partner product

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 value of future demand for energy storage inverters;
statements concerning the efficiency and cost advantages of our energy storage
inverters; statements concerning the Sonnenbatterie product and statements
concerning Prosol's market share expectations. 

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
Michael Carten
Chief Executive Officer
Michael. Carten

Investor Contact:
Alliance Advisors, LLC
Valter Pinto

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