Solar Power Just Crossed a Threshold That Changes Everything

The International Energy Agency published a data point last month that received approximately the coverage it deserved, which is to say almost none. In Q1 2026, solar photovoltaic generation supplied 31.4% of global electricity production — the first time any single renewable source has crossed 30% of global supply in a calendar quarter.

<h2>The Data Centre Problem</h2>

AI training and inference are growing faster than renewable capacity additions. The gap is currently being filled by natural gas peaking plants in most North American grids, and by coal in several Asian markets where the largest GPU clusters are located.

<h2>What Big Tech Is Actually Doing</h2>

Behind the sustainability reports, the strategies vary considerably. Google has been purchasing what it calls “24/7 carbon-free energy.” Microsoft has signed long-term power purchase agreements that are genuinely additional. Amazon’s approach is more opaque — it publishes an annual renewable energy matching percentage that sounds impressive until you understand that annual matching allows you to consume coal power at 9pm and offset it with excess solar from a sunny afternoon last April.