Countries where solar's share grew fastest in 10 years

This ranking measures momentum rather than size: how many percentage points solar's share of electricity has gained over the last decade. A country going from 1% to 16% solar ranks above one going from 10% to 20%.

The leaders combine strong sun with falling module prices and either auctions, net-metering or simply very expensive diesel or gas power to displace.

Ranking rule. Countries and territories that generate less than 1 TWh of electricity a year (mostly small islands) are left out, because one diesel generator or one solar farm can swing their shares by tens of points. Values older than 2020 are also excluded. The change is measured in percentage points (pp) between the latest year and ten years earlier.