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North Carolina Interconnection Standards

Date Last Updated8/13/2014
Policy TypeInterconnection Standard
Policy Administrator/Contact OfficeNorth Carolina Utilities Commission (NCUC)
Policy Initiation Date6/9/2008
Policy SummaryThe NCUC has adopted comprehensive interconnection standards for distributed generation, including CHP. The NCUC standards, which are similar to the Federal Energy Regulatory Commission's (FERC) Small Generation Interconnection Procedures, govern interconnection to the distribution systems of the state's investor-owned utilities. The NCUC standards, like the FERC standards, use a three-tiered approach to simplify the interconnection process:
  • Tier 1: applies to systems up to 10 kW through the Inverter Process of simplified interconnection.
  • Tier 2: applies to systems >10 kW and up to 2 MW through a "fast track process".
  • Tier 3: applies to systems with a capacity >2 MW through a study process.
The NCUC established a fee structure for interconnection applications: $100 for generators <20 kW; $250 for generators >20 kW but up to 100 kW; and $500 for generators >100 kW but up to 2 MW. The FERC fee structure applies to the interconnection of systems >2 MW. Non-residential generators are required to carry comprehensive general liability insurance with a $300,000 minimum. Utilities are authorized to require an external disconnect switch, but must reimburse owners of systems up to10 kW for the cost of the switch. The standards include a provision for mutual indemnification and a very basic process for dispute resolution.
CHP Eligibility RequirementsBoth fossil-fueled and renewably-fueled CHP systems are eligible for standardized interconnection.
Eligible Project Size (MW)All sizes are eligible for standardized procedures.
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