EXPANDING ENERGY

Global  renewable electricity supplies are growing faster than expected,  possibly expanding by 50% within a few years, powered by a resurgence in solar energy. Its cost is expected to decline by a further 15% to 35% by 2024. But panels will cover only 6% of the world’s available rooftops so we need to ramp it up even more.

https://www.theguardian.com/environment/2019/oct/21/renewable-energy-to-expand-by-50-in-next-five-years-report