Connecticut Bulk Transmission Permitting Process (CT)
The steps of the Connecticut bulk transmission permitting process are summarized in the chart below. Roll over each section for a summary of the regulations and permits it covers. Click a section to learn more about the required permits and regulations related to that topic.
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Bulk Transmission Development in Connecticut
The Connecticut electric grid is part of the North American Electric Reliability Corporation’s (NERC) Eastern Interconnection. In Connecticut, Northeast Power Coordinating Council is the regional entity, under NERC, charged with developing reliability standards and monitoring compliance for all owners, operators and users of the bulk electric system. Connecticut has one balancing authority: ISO New England (ISO-NE). ISO-NE oversees the operation of the bulk electric power system and transmission lines in Connecticut.
In Connecticut, there are investor-owned, independent, and municipal transmission providers, including:
- Eversource that provides transmission services across the state;
- United Illuminating Company that serves central Connecticut;
- Groton Utilities that serves the southeastern part of the state;
- Norwich Public Utilities which serves the city of Norwich in southeast Connecticut;
- South Norwalk Electric Works that provides transmission services in southwest Connecticut.