Bloomberg National Energy Outlook sees 80% investment in clean energy to 2050.

Global power generation mix (Bloomberg NEO 2019)

The falling prices of renewable energy and batteries reshape the electricity system over the next 32 years. Solar grows the most, rising from 2% of the world’s generation to 22% in 2050. Batteries, peakers and dynamic demand help wind and solar energy reach more than 80% in some regions.

Bloomberg analysts see $13.3 trillion invested in new power generation up to 2050, of which 80% is zero carbon. They say "By 2050, coal-fired generation is down 51%, supplying just 12% of world electricity, from 27% today." Such that coal collapses everywhere except for Asia and that coal peaks globally in 2026.

Changes in some of the highest energy users are such that:
- In the U.S.coal and nuclear are pushed out due to the ageing of their plants. Utility-scale batteries for peaking purposes grow in significance from around 2035, supporting renewables penetration, which reaches 43% in 2050. In that year, emissions are 54% lower than today.
- In Europe, renewables make up 90% of the electricity mix by 2040, with wind and solar accounting for 80%.
- China continues to be the largest market for wind and solar and together they grow from 8% to 48% of total generation by 2050.
- India becomes the second-largest power system in the world by 2044, overtaking the U.S. It expands its zero carbon energy technologies to 67% by 2050.

Read more:
- Bloomberg New Energy Outlook 2019, June 2019.
- Solar, wind and batteries to deliver 50% of global power by 2050. RenewEconomy, June 19 2019.