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Ontario’s Independent Electricity System Operator (IESO) earlier this week released its 2021 Annual Acquisition Report (the Report) providing details on  the province’s future reliability needs and how to address them. The Report sets out an approach to address these needs over three planning horizons: operations planning, near-term planning, and long-term planning. The Report is anticipated to lead to demand reductions and increased procurement of lower-carbon power. This bulletin outlines key highlights of the Report:   Understanding Ontario’s Reliability Needs Demand side uncertainties. Energy consumption is predicted to increase 1 percent each year until 2040. This prediction may be affected by the pace of economic recovery from the COVID-19 pandemic, demographic changes, changes in government policy, future energy management initiatives, and increasing electrification. Energy management. The Report indicates that the Industrial Conservation Initiative program is forecasted to reduce demand by 1300 MW with an additional 2.8 TWh and 450 MW of energy and demand savings from the 2021-2024 Conservation and Demand Management (CDM) Framework. Planned Actions to Ensure Resource Adequacy Flow East Towards Toronto (FETT). With the upcoming planned nuclear retirements and recommissioning, the supply capacity east of the FETT is expected to decline considerably and additional supply will be required as early as 2023. As a result, IESO is recommending upgrading the transmission line between North Oakville and Pearson Airport by 2026, reducing capacity needs by 2000 MW. To meet the increased demand, IESO is negotiating a transitional contract for the Lennox Generating Station which ends in April 2029. The Lennox Generating Station provides large-scale and flexible supply from a dual gas and oil generation facility. West of London. Electricity demand in Windsor-Essex and Chatham-Kent is expected to grow from 500 to 2300 MW by 2035. As a result, IESO is recommending development of new transmission infrastructure from Lambton to Chatham and Chatham to Lakeshore, which will require addressing…