Nova Scotia's IESO Plans to Take Over Electricity Grid Control from Nova Scotia Power in 2028
The Independent Energy System Operator (IESO) intends to assume control of Nova Scotia's electricity grid from Nova Scotia Power in spring 2028. The transition, estimated to cost $75 million in total capital expenses, involves building a new control room and nearly doubling the organization's workforce. Expert consultants project customer benefits exceeding $200 million over 15 years.
The Independent Energy System Operator (IESO) plans to take over control of Nova Scotia's electricity grid from Nova Scotia Power in the spring of 2028. The Houston government established the non-profit IESO in 2024 to separate power grid management from the for-profit utility.
The IESO has already assumed responsibility for long-term grid planning and aspects of new energy procurement, including controversial calls for large-scale gas-powered generators. Taking over the control room represents the first of three phases in the transition, with subsequent phases involving administrative functions potentially extending into the next decade.
To prepare for the handover, the IESO's plan for the next fiscal year includes creating a new control room and increasing its workforce from 55 to 91 employees. Many of the new staff specialized in control room operations are expected to be recruited directly from Nova Scotia Power. The IESO states it must build a new control room because transferring Nova Scotia Power's existing facility would not be the most affordable, effective, or timely approach.
General operating costs for the IESO are projected to be approximately $15 million next year, about 2 per cent higher than the current budget. The organization plans to spend roughly $41 million in capital costs specifically to enable the transfer of grid control, part of a total estimated transition cost of $75 million.
Expert consultants estimate that independent grid operation will provide customer benefits exceeding $200 million in today's dollars over the first 15 years. The IESO argues that independent grid management will enhance competition and affordability in Nova Scotia's electricity market.
The IESO has submitted an application to the Nova Scotia Energy Board for approval of its plans.