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Our Technical Interconnection Requirements document contains a set of design requirements for distributed generation development within our distribution system in Ontario.

Distributed Generation Technical Interconnection Requirements Interconnections at Voltages 50kV and Below Rev 3, was released on April 15, 2013.

TIR Updates

Jan 14, 2016: Revisions to Section 2.3.12. See Bulletin 1 and Bulletin 2 for details.

Learn more about Distribution-connected Generators and the Feed-in Tariff (FIT) program.

Distributed Generation TIR for microFIT PDF

Important information about your generation connection and transformer sizing:

Please review the Technical Interconnection Requirements (TIR) – Micro Generation & Small Generation, 3-phase, less than 30 kW and Generation Transformer Guide. You may incur additional costs for your connection according to your existing transformer size and the amount of generation you propose to install. For more information, please refer to the TIR or contact us.

Contact Us

For more information please contact our Distributed Connections Group at: 

Or call us at:


(choose option 2 from the IVR)