Solar has crossed a bigger economic threshold than cheap electricity: it can now require less upfront capital than coal or gas for the same annual output.

According to a new Ember analysis, solar needed up to five times as much upfront investment a decade ago. Since 2010, IRENA says installed solar PV costs have fallen 87% and battery storage costs 93%.

In high-irradiance regions, firm solar-plus-battery power is now estimated at $54–82/MWh, versus $70–85 for new coal in China and more than $100 for new gas globally.

For the AI ​​revolution to continue, massive investments and expansion in solar energy are essential. Currently, aside from nuclear energy (which is taking a long time to develop) and the potential future of fusion energy, there are few better energy sources.