Sustainable Energy to Issue 50,000, $10, 8% Convertible First Preferred Shares to Increase Working Capital Reserves

CALGARY, ALBERTA - April 2, 2013 – Sustainable Energy Technologies Ltd (TSX VENTURE:STG) ("Sustainable Energy" or the "Company") announced today that it will issue 50,000 Units consisting of One (1) $10, 8% 5 year Convertible First Preferred Share, Series 15 ("Preferred Shares") and 12, 1-year common share purchase warrants ("Warrants") to a private investor. 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 thereof to acquire one common share at a price of $0.12 per share.

Sustainable Energy Confirms Closing of $500,000 Investment by Doughty Hanson Technology Ventures

CALGARY, ALBERTA - March 25, 2013 – Sustainable Energy Technologies Ltd (TSX VENTURE:STG) ("Sustainable Energy" or the "Company") confirms that it has completed the previously announced (News Release: March 15, 2013) private placement of Convertible Debentures and Common Share Purchase Warrants to Doughty Hanson Technology Ventures ("DHTV") for gross proceeds of $500,000.

Sustainable Energy Announces $500,000 Investment from Doughty Hanson to Accelerate Production of Energy Storage Inverters

CALGARY, ALBERTA - March 15, 2013 – Sustainable Energy Technologies Ltd (TSX VENTURE:STG) ("Sustainable Energy" or the "Company") is pleased to announce that Doughty Hanson Technology Ventures ("DHTV") will invest $500,000 to enable the Company to accelerate production of its energy storage inverters for German solar battery systems. The inverters will be delivered under a previously announced multi-year deal with a leading European developer of solar battery systems (News Release dated February 19, 2013).

Sustainable Energy Releases Q1 Results and Provides Update

CALGARY, ALBERTA - March 04, 2013 – Sustainable Energy Technologies Ltd (TSX VENTURE:STG) ("Sustainable Energy" or the "Company") announced that it has filed its Consolidated Financial Statements for the Three Months ending December 31 2012 ("Q1") along with Management's Discussion and Analysis thereof. The Consolidated Financial Statements and the Management Discussion and Analysis thereof are available on SEDAR at www.sedar.com and on the Company's website at www.sustainableenergy.com.

Sustainable Energy's Energy Storage Inverter Selected by Leading European Energy Management System Supplier

CALGARY, ALBERTA - Feb. 19, 2013 – Sustainable Energy Technologies Ltd (TSX VENTURE:STG) ("Sustainable Energy" or the "Company"), a manufacturer of intelligent power electronics for distributed generation and storage systems, announced today that it has agreed on the essential elements of an exclusive, multi-year deal to supply its energy storage inverters to a leading supplier of
energy management systems for European markets. The agreement is subject to negotiation of final licensing and supply contracts over the next 30 days, and satisfactory integration of the inverter into the energy management system over the next 60 days.