Final report to: Ontario Power Authority (OPA) Independent Electricity System Operator (IESO) Canadian Wind Energy Association (CanWEA) for Ontario wind integration study : Ontario wind integration study

To accomplish this goal, the study focuses on the following key areas: • Assessment of wind resource • Determination of impact of wind resource variability on bulk power system operation for identified scenarios • Determination of the capacity value of the wind • Assessment of sudden weather changes on wind power production The balance of this report consists of four main chapters that address the [...] Chapter 3 details the development of the wind production data, Chapter 4 analyzes of the wind capacity value, Chapter 5 assesses of the statistical variability of wind, load and combined load and wind, and discusses the impact of load and wind variability on the Ontario bulk power system operations (without considering transmission constraints). [...] Much of the analysis presented in this report is aimed at quantitatively evaluating the impact of significant wind variability in each of the time frames on the performance of the Ontario bulk power system. [...] To account for the air density, the wind speed was scaled by the cube root of the ratio of the site air density to the nominal (sea-level) air density at which the power curve was specified. [...] Furthermore, the blocks of deviations were chosen at random from the thousands previously identified, the only restriction being that the average capacity factor for the block chosen be similar to that of the site in the period chosen.