Indiana Commission Approves Interconnection Rules for Distributed Generation

December 10, 2005

The Indiana Utility Regulatory Commission adopted new rules on November 22 for the state's investor-owned utilities to interconnect distributed generation to the electric power grid. The rules are similar to those of New Jersey for connecting customer-owned generation, and take effect December 22, 2005.

The commission requires Indiana's utilities to provide three levels of service depending on system size:

  • Systems rated at 10 kilowatts (kW) and smaller interconnect free of charge when they comply with minimum safety standards.
  • Systems rated at 2 megawatts (MW) and smaller must comply with the same safety standards, and the utility may charge a standard fee for the connection plus any required equipment modifications.
  • Systems larger than 2 MW require a formal review by utility engineers, which is paid for by the customer, plus charges for equipment modifications, etc.

As part of the ruling, the URC also modified interconnections rules for interconnecting combined heat and power systems and net metering. For more information about the ruling, see the Interstate Renewable Energy Council's December 9 article in Connecting to the Grid.