While a change to renewables may, in theory, help save world ecosystems, it will also tend to make the electric grid increasingly unstable. To prevent grid failure, electrical systems will need to pay substantial subsidies to fossil fuel and nuclear electricity providers that can offer backup generation when intermittent generation is not available. Modelers have tended to overlook these difficulties. As a result, the models they provide offer an unrealistically favorable view of the benefit (energy payback) of wind and solar.
Oil Price 3rd Aug 2019 read more »