Sustainable Energy Closes Multi-Megawatt Supply Contract with Market Leading Solar Battery Integrator in Germany

Calgary, Alberta – May 16, 2013 Sustainable Energy Technologies Ltd (TSX-V: STG) (“Sustainable Energy” or the “Company”) announced today that it has closed on a previously announced multi-megawatt agreement (See News Release: February 19, 2013) with Prosol Invest Deutschland GmbH (“Prosol”) to supply inverters for Prosol’s Sonnenbatterie (www.sonnenbatterie.de) residential and commercial solar energy management system.

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

CALGARY, ALBERTA - April 24, 2013 – 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.

Sustainable Energy Market Update: Germany Launches Incentive Program for Solar Energy Storage Systems

CALGARY, ALBERTA - April 24, 2013 – Sustainable Energy Technologies Ltd (TSX VENTURE:STG) ("Sustainable Energy" or the "Company"), a manufacturer of intelligent power electronics for decentralized generation and storage systems is pleased to confirm that the German Government will implement the expected incentive program for residential solar energy storage systems, beginning
May 1, 2013. (See News Release: February 19, 2013: Sustainable Energy's Energy Storage Inverter Selected by Leading European Energy Management System Supplier)

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.