The cost of producing electricity from renewable sources such as solar and wind has dropped significantly over the past five years, narrowing the gap with power generated from fossil fuels and nuclear reactors, according to the International Energy Agency . “The costs of renewable technologies — in particular solar photovoltaic — have declined significantly over the past five years,” the Paris-based IEA said in a report called Projected Costs of Generating Electricity. “These technologies are no longer cost outliers.” The median cost of producing so-called baseload power that is available all the time from natural gas, coal and atomic plants was about $100 a megawatt-hour for 2015 compared with about $200 for solar, which dropped from $500 in 2010. Those costs take into account investment, fuel, maintenance and dismantling of the installations over their lifetimes and vary widely between countries and plants. For instance, commercial rooftop solar installations generate […]