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Types of Customer Owned Generation

Parallel Generation

Type 2 (Load Displacement Only)

Definition

The generator is interconnected using Sustained Closed Transition Switching. These systems can parallel indefinitely, and are primarily used for load displacement. This means using your generator to meet some of your energy needs which will reduce your energy bill, while at the same time still relying on Manitoba Hydro for the remainder of your electricity. Power produced by a type 2 generator is not allowed to flow into the utility.

Process

Type 3 (Load Displacement plus excess to grid)

Definition

The generator is interconnected using Sustained Closed Transition Switching. These systems can parallel indefinitely. In this case, excess power generated by the customer is allowed to flow into the utility grid. Power flow is limited by the size of the existing supply transformer and the breaker rating.

If a customer wishes to sell excess power to Manitoba Hydro, a bi-directional revenue meter must be installed by Manitoba Hydro. The customer is responsible for the cost of this meter which records energy flow in both directions.

Process

  • Facility must meet the technical requirements in Manitoba Hydro’s Distributed Resource Interconnection Guideline document, DRG2003.
  • Comply with interconnection study fees and interconnection and operating agreements associated with Manitoba Hydro’s Distributed Resource Interconnection Procedures.
  • Generator must sign a Power Purchase Agreement with Manitoba Hydro if planning on producing excess energy to flow back to the utility for a credit on hydro bill or export energy for sale. (This agreement will be supplied to customer by Manitoba Hydro at a later date.)
  • Generators generating 10 kW or less must sign the Registration form for 10 kW or less.

Note of caution: Manitoba Hydro’s experience shows that smaller power projects can be costly to set up and operate. Customers are encouraged to evaluate the amount of energy you expect to produce and the economics of the project to determine your overall cost of electricity.