In a 2019 report, The Coal Cost Crossover: Economic Viability of Existing Coal Compared to New Local Wind and Solar Resources by Vibrant Clean Energy and Energy Innovation, they analyzed the period over which existing coal becomes increasingly more expensive than cleaner alternatives. They found that local wind and solar could replace nearly 74 percent of the US coal fleet and produce immediate savings to electricity customers. They expect this statistic will grow to 86 percent by 2025. For Wisconsin’s electricity generation, they show that local renewables cost less than each coal-fired plant, in some cases 25 percent less.
This 2019 report from analyzes the “coal cost crossover”, a period over which existing coal becomes increasingly more expensive than cleaner alternatives. The researchers investigate the replacement of coal plants with local clean energy sources to produce cost savings for electricity. They find that local wind and solar could replace nearly 74 percent of the US coal fleet and produce immediate savings to electricity customers. They expect this statistic will grow to 86 percent by 2025. For Wisconsin’s electricity generation, they find local renewables cost less than each coal-fired plant, in some cases 25 percent less.