Germany and Denmark have the highest installed wind and solar capacity and the highest priced electricity, at least 3X the countries with the lowest installed wind and solar capacity. As more capacity is added, additional investment in storage and transmission will add additional costs and instead of a straight line price will rise non linearly. These high prices are already causing pain but are sustainable because electricity only provides a fraction of total energy in rich countries. In a future where the bulk of energy will come from electricity the overall cost to consumers will increase significantly and will not be sustainable even in the richest countries and definitely not in the bulk of the developing world where most of the growth in energy is concentrated.
By Edmund Kelly