Sustainable Energy to Issue Additional 15,000 First Preferred Share Units

Sustainable Energy Technologies Ltd (TSX VENTURE:STG) ("Sustainable Energy" or
the "Company") announced today that it will increase the size of its previously
announced (News Release: April 17, 2013) issue of 50,000 First Preferred Share
Units up to a total of 65,000 Units. 


Each Unit consists of one (1) $10, 8% 5-year Convertible First Preferred Share,
Series 15 (Preferred Shares) and 12, 1-year common share purchase warrants
(Warrants). The Preferred Shares are convertible at the option of the holder
into common shares of the Company at a price of $0.12 per share. The Warrants
entitle the holder to acquire one common share at a price of $0.12 per share.
The Company intends to use the proceeds of this financing to increase working
capital reserves for operations.  


Closing of the issue is subject to approval by the TSX Venture Exchange.

About Sustainable Energy: 

Sustainable Energy (www.SustainableEnergy.com) 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 has designed a simple low cost platform that is software
configurable for a wide range of low voltage cellular generation and storage
technologies, including solar PV and all the emerging battery technologies. 


The Company's platform is based on breakthroughs in power conversion technology
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, it includes:
statements concerning the value of its products and technologies for distributed
generation and storage systems. 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. 


FOR FURTHER INFORMATION PLEASE CONTACT: 
Sustainable Energy Technologies Ltd.
Michael Carten
Chief Executive Officer
403.508.7177 #111
[e-mail]
www.SustainableEnergy.com