Joint Letter to the Northeast Power Coordinating Council on HVDC Bipole Contingencies

high-voltage power lines at sunset,high voltage electric transmission tower

ACORE, the American Clean Power Association, and RENEW Northeast wrote to request that the Northeast Power Coordinating Council reassess its current treatment of bipole high-voltage direct current (HVDC) systems as a single contingency and align with the both the North American Electric Reliability Corporation’s criteria and European practice to instead treat the loss of both poles as two separate contingencies when considering new, modern HVDC systems.