How many kilowatts of solar power are there

How much solar power does the UK have?

The UK has an installed solar capacity of more than 19 gigawatts (GW), as of August 2025, according to government data. If we measure that figure in 4.5kWp solar installations, it's the equivalent of 4.2 million systems. That’s a more than 18,000% increase since 2010, when the UK’s total solar capacity was just 0.0937GW.

What percentage of global electricity comes from solar?

4.5% of global electricity generation comes from solar, according to the International Energy Agency (IEA). This percentage has exploded since 2008, when solar panels first reached 0.1% of global electricity generation, and even since 2015, when solar first reached 1%.

How many gigawatts of solar power are there in China?

Only in that last year, installations increased by almost 40 percent. In 2024, cumulative solar PV capacity reached some 886 gigawatts in China alone. Investments in solar photovoltaic energy have grown during the last years and the technology stands out as the most heavily funded renewable energy source.

Which countries use the most solar energy?

597.6GW of the world’s current solar capacity – or 57% – is installed in Asia, mostly in China, Japan, and South Korea. The UK’s capacity makes up just 1.6% of the total solar capacity on Earth. To learn more, check out our rundown of the 13 countries that use the most solar energy. 12. What % of global electricity generation comes from solar?