Chart of the week

Clean energy

Chart: US to overwhelmingly build clean power in 2026

A federal agency says solar, battery, and wind additions will vastly outpace new gas facilities in what’s set to be a record year for power plant construction.

By Julian Spector . 27 February 2026
Batteries

Chart: Grid battery installations soared to a new high in 2025

The U.S. energy-storage sector has grown rapidly over the last few years as solar has expanded, costs have declined, and electricity demand has soared.

By Dan McCarthy . 20 February 2026
Clean energy

Chart: The energy transition attracted record investment in 2025

Investors around the world spent $2.3 trillion on renewables, batteries, power grids, EVs, and more. Meanwhile, investment in fossil fuel supply dropped.

By Ysabelle Kempe . 13 February 2026
Batteries

Chart: Surprise — batteries got cheaper again last year

The steady downward march of lithium-ion battery prices is one of the key stories of the energy transition. The trend continued last year.

By Dan McCarthy . 6 February 2026
Clean energy manufacturing

Chart: Trump cratered the clean-energy manufacturing boom

In 2025, companies spent less on U.S. factories for solar panels, EVs, and more. A bonus chart shows why this trend may continue in the year to come.

By Dan McCarthy . 23 January 2026
Solar

Chart: Solar is finally bigger than coal in Texas

Sure, coal had a comeback in 2025. But the year also marked the first time Texas got more power from solar than from the increasingly expensive fossil fuel.

By Dan McCarthy . 16 January 2026
Clean energy

Chart: How the US electricity mix changed last year

Solar and coal were up, and gas, surprisingly, was down. Here are the numbers behind a wild year for the U.S. power sector.

By Dan McCarthy . 9 January 2026
Clean energy

Clean energy is still winning. These 10 charts prove it.

Solar and wind are beating new power demand, steelmaking is slowly getting off coal, and more clean energy victories are clear in these charts.

By Kathryn Krawczyk . 26 December 2025
Clean energy

Chart: Clean energy remains dominant in the US — despite Trump

Trump spent much of 2025 boosting fossil fuels and blocking renewables, but 92% of new power additions through November were solar, wind, or batteries.

By Dan McCarthy . 19 December 2025
Geothermal

Chart: Geothermal energy is attracting more and more investment

There’s a wave of renewed interest in the energy source, which could help the world keep pace with rising electricity demand and decarbonization targets.

By Dan McCarthy . 12 December 2025