Solar power generation plummets

How has solar power changed over time?

Both are measured on logarithmic scales, and the trend follows a straight line. That means the fall in cost has been exponential. Costs have fallen by around 20% every time the global cumulative capacity doubles. Over four decades, solar power has transformed from one of the most expensive electricity sources to the cheapest in many countries.

Will solar power and wind power grow in 2027?

We expect the combined share of generation from solar power and wind power to rise from about 18% in 2025 to about 21% in 2027. In our STEO forecast, utility-scale solar is the fastest-growing source of electricity generation in the United States, increasing from 290 BkWh in 2025 to 424 BkWh by 2027.

How many GW of solar generating capacity will come online in 2026?

Almost 70 gigawatts (GW) of new solar generating capacity projects are scheduled to come online in 2026 and 2027, which represents a 49% increase in U.S. solar operating capacity compared with the end of 2025. Much of the utility-scale solar generation capacity additions will come online in Texas.

Why is solar power a problem?

More communities are relying on solar power as a source of renewable energy, but increasing demand and climate change threaten its reliability. Solar power droughts can be driven by weather extremes such as clouds, rain, and extreme heat, as well as light-blocking pollution and periods of extremely high demand.