Transmission Generator Interconnections
BC Hydro offers interconnection service to connect your power generator to our transmission network (over 35 kV). We’ll assist you in determining the most appropriate interconnection process, depending on your site location and proposed power output of the generator.For interconnections under 35 kV, please visit the Distribution Generator Interconnections page.
BC Hydro's transmission Standard Generator Interconnection Procedures (SGIP) are governed by our Open Access Transmission Tariff (OATT).
How long will your request take?
Requests for interconnection are handled on a first-come, first-served basis. Each interconnection request is reviewed for technical compatibility to ensure the proposed generator is able to be connected and to assess the impact of the proposed generator on BC Hydro's systems and facilities.
Connection process overview
Here’s a brief overview of the transmission generator interconnection process. Specific details on the steps are available in the Open Access Transmission Tariff (OATT) [PDF, 60.5 MB] (Attachment M-1, SGIP.)
1. Interconnection Request
To initiate a transmission generator Interconnection Request (IR), a customer must submit a $15,000 application deposit (plus applicable taxes) and two completed versions of the Transmission Generator Interconnection Request Form [MS Excel, 102 KB].
The two completed versions of the form will be:
- A PDF (signed and stamped by the project’s engineer of record)
- An MS Excel version of the same file.
Note: Applications can be submitted by email. All cheques must be mailed to the Transmission Generator Interconnections team. You can find the address at the bottom of this page.
BC Hydro will assign a date to the Interconnection Request upon receipt of the $15,000 application deposit (plus applicable taxes). If the submission is complete, the project enters the generator interconnections queue.
About the Generator Interconnection Queue
The Generator Interconnection Queue is a mechanism that ensures that valid Interconnection Requests are processed in the order they are received. The queue functions generally like a "line-up" in that requests submitted earlier will proceed through the interconnection process before those submitted later. An applicant that is in a higher position in the queue will have the impact of their study included in the base case of those lower in the queue.
2. Feasibility Study (optional)
This optional study will consist of a power flow and a short circuit analysis and provide a list of facilities and a non-binding good faith estimate of cost responsibility and an estimated time to construct. BC Hydro will use reasonable effort to complete this study within 45 calendar days.
- Signed Feasibility Study Agreement
- $15,000 study deposit (plus applicable taxes)
- Feasibility Study Data Form [MS Excel, 708 KB]
Please note that all study costs will be reconciled upon completion and billing will be based upon actual costs.
3. System Impact Study
This study will evaluate the impact of the proposed interconnection on the reliability of the transmission system. This study will consider the Base Case as well as all generating facilities and identified network upgrades that may have an impact on the request.
The System Impact Study will consist of a short circuit analysis, a stability analysis and a power flow analysis. It will provide a list of facilities that are required to support this request and a non-binding good faith estimate of cost responsibility by the interconnection customer and an estimate of construction time.
- Signed Combined Study Agreement
- $75,000 study deposit (plus applicable taxes)
- System Impact Study Data Form [MS Excel, 764 KB]
4. Facilities Study
The study will provide a cost estimate of the equipment, engineering, procurement and construction work needed to connect the customer to the transmission system. It will also identify:
- The electrical switching configuration of the connection equipment
- The nature and estimated cost of upgrades to the interconnection facilities and network upgrades necessary to accomplish the interconnection
- An estimate of the time required to complete the construction and installation of such facilities.
- Written notification that you would like to proceed with a Facilities Study
- $150,000 study deposit (plus applicable taxes)
- All additional technical data requested by BC Hydro
5. Standard Generator Interconnection Agreement
This agreement outlines the terms and conditions of the interconnection. Following the signing of an agreement, BC Hydro will initiate construction and commissioning of the identified Network Upgrades. Once online and operating commercially, BC Hydro continues to provide support to independent power projects (IPPs).
- Site Control Criteria [PDF, 321 KB]
- 60 KV to 500 kV Technical Interconnection Requirements (TIR) for Power Generators [PDF, 619 KB]
(Updated: June 2, 2014)
Merchant Transmission Line Requirements
- Interconnection Requirements for Transmission Facilities [PDF, 134 KB]
Transmission Operating Orders
- SOO 1T-35 Commissioning Procedure for Generators, Station and Transmission Projects [PDF, 1.3 MB]
- SOO 5T-10 Ratings For All Transmission Circuits 60 kV Or Higher [PDF, 1.6 MB]
Open Access Transmission Tariff (OATT)
The Open Access Transmission Tariff (OATT) [PDF, 60.5 MB] Attachment M-1 and appendices contain the complete Standard Generator Interconnection Procedures and sample agreements.
- Standard Generator Interconnection Procedures (SGIP) including SGIA Attachment M-1
- Interconnection Feasibility Study Agreements Attachment M-1 – Appendix 2
- Combined Study Agreement Attachment M-1 – Appendix 3
- Optional Interconnection Study Agreement Attachment M-1 – Appendix 4
- Standard Generator Interconnection Agreement Attachment M-1 – Appendix 5
Revenue metering requirements
- Secondary Voltage Revenue Metering – 750 V and less (March 2015) [PDF, 1.4 MB]
- Manually Read Primary Service Voltage Revenue Metering – 4 kV to 35 kV (June 2004) [PDF, 623 KB]
- Complex Revenue Metering (March 2014) [PDF, 717 KB]
Advisory notice: Multiple occupancy metering requirements and resale of electricity
- The purpose of the advisory notice [PDF, 22 KB] is to draw the attention of developers and owners of multiple occupancy buildings, and their electrical consultants and contractors to the requirements of BC Hydro's Electric Tariff [PDF, 7.8 MB] in relation to the electricity supply and metering configurations applicable to these buildings.
How to reach us?
Please contact us as your first step in the process so that we may assist you in moving your project forward in the best possible way. All payments must be sent to this address.
Transmission Generator Interconnections
6911 Southpoint Drive
Burnaby, B.C. V3N 4X8