[Editor’s note: Part 1 of this case study addressed the false claim that wind has any appreciable impact on reducing coal-fired generation. This part focuses on the little known considerations relating to the effect on nuclear plants that must be cycled to balance wind, which counters claims that wind power improves general health.]

“Excessive baseload generation largely due to a contractual requirement to buy all available wind output might make it look like wind is supplying an increasing fraction of the energy supply (in TWh), while the nuclear supply appears to be decreasing. But in reality, the reduction in Bruce B unit output to permit this fallacy cannot be justified economically, nor is it a wise and conservative operation of a nuclear station.”

The following eight charts extracted from the Sygration website, which allows plotting of the Ontario IESO electrical generating unit performance, demonstrate that not only are wind turbines ineffective to replace coal, in actual fact, they do considerable harm to the stability of the electrical supply, and increase the risk of upset and accident at a nuclear generating station.…