World Power Monitor Blog
Notes and analysis on electricity data: what the numbers on this site show, how grids and power markets behave, and what changed in the figures. 4 articles, newest first. The RSS feed carries every post.
Articles
Newest first- The grids that cleaned up fastest, 2015 to 2025 Portugal cut the carbon intensity of its electricity by 69 per cent in ten years, the largest fall of any sizeable power system in Ember's annual data.
- Solar passed coal on installed capacity in 2025 Ember's annual data for 2025 shows 2,391 GW of solar installed worldwide against 2,242 GW of coal, but coal still generated four times as much.
- US household electricity prices in 2025, state by state EIA data for 2025 shows households in Hawaii paid 40.6 cents per kWh and households in North Dakota paid 11.8, a gap of nearly three and a half times.
- Where the world's electricity came from in 2025 Ember's annual data for 2025 puts coal at 33.1 per cent of world generation, with wind and solar together at 17.3 per cent, up from 4.5 per cent in 2015.