These numbers refer to peak solar panel output under standardized test conditions. The annual output of an installed solar panel depends on how sunny a region is, whether or not the panel tracks the sun, ambient temperature, how much soiling is present on the front glass, and other factors.
Utility scale PV solar farms in the US had an average capacity factor of 24.8% last year:
These solar farms totaled 64.219 gigawatts of peak capacity and generated 139,670 gigawatt-hours of energy, equivalent to running at peak output for 24.8% of the year.
The International Renewable Energy Agency also collates statistics about global electricity generation from renewable energy sources. These numbers take longer to publish than the capacity numbers, since they're more complicated to gather, but you can see the latest update here with numbers for 2021:
Utility scale PV solar farms in the US had an average capacity factor of 24.8% last year:
https://www.eia.gov/electricity/monthly/epm_table_grapher.ph...
These solar farms totaled 64.219 gigawatts of peak capacity and generated 139,670 gigawatt-hours of energy, equivalent to running at peak output for 24.8% of the year.
The International Renewable Energy Agency also collates statistics about global electricity generation from renewable energy sources. These numbers take longer to publish than the capacity numbers, since they're more complicated to gather, but you can see the latest update here with numbers for 2021:
"Renewable energy highlights, 3 July 2023"
https://mc-cd8320d4-36a1-40ac-83cc-3389-cdn-endpoint.azureed...
In 2021, global solar electricity output increased by almost 23%, growing by 191 terawatt hours.
The full 440 page IRENA report with stats on both peak capacity and actual production through 2021 is available here:
https://www.irena.org/Publications/2023/Jul/Renewable-energy...