If anyone still has any doubts on the future of electricity generation, have a look at this report from IRENA. This clearly shows how in the next 10 years the costs of renewable energy are set to decrease even further, by as much as 59% in the case of solar PV. This is due to economies of scale and continuing technological improvements. It is quite clear that renewable energy has a very bright future.
According to a new report from the International Renewable Energy Agency (IRENA), The Power to Change: Solar and Wind Cost Reduction Potential to 2025, with the right regulatory and policy frameworks governing the development of wind and solar technologies, future cost reductions could increase by 26% to 59% by 2025, and beyond. Specifically, the report predicts that the average electricity costs could decrease by 59% for solar PV, concentrated solar by 43%, (depending on which technology is used), 35% for offshore wind, and 26% for onshore wind compared to levels found in 2015.