Sussex's Summary Analysis of the IESO 2021 Annual Planning Outlook

written by

Energy Team

Earlier today the Independent Electricity System Operator (IESO) released the 2021 Annual Planning Outlook (APO). The report provides details and insights on Ontario’s electricity system needs resulting from detailed demand forecasting looking out over the next 20 years.

The 2021 APO is the third such report released by the IESO and is now projecting an increase in electricity demand at a rate not seen in almost two decades. The anticipated growth of demand has led to a larger than originally anticipated capacity need beginning in 2023 for both summer and winter peak consumption periods, increasing over the remainder of the reference period between 2023 and 2042. A need for energy emerges towards the beginning of the 2030s.

Read the full analysis here.

No items found.

November 10, 2026

Resource Security Is National Security: The Price of Critical Mineral Independence

For decades, commodity prices, project economics, and access to capital have driven the development of new mines. Governments have supported resource development, but the private sector has generally driven investment decisions.

November 5, 2026

2026 Federal Budget

This afternoon in the House of Commons, Finance Minister François-Philippe Champagne presented the 2026 Budget “Masters of our own Destiny”, built around a central proposition from the government: that Canada must become more resilient, more competitive, and more self-reliant in an era of heightened geopolitical uncertainty.

November 2, 2026

2026 U.S. Midterm Election Outlook

On Tuesday, November 3, Americans will head to the polls for midterm elections that could reshape Washington's political landscape and influence Canada-U.S. relations for the remainder of President Donald Trump's second term.

view all

RECENT POSTS

Resource Security Is National Security: The Price of Critical Mineral Independence

2026 Federal Budget

2026 U.S. Midterm Election Outlook