What's the source of your electricity?

The electricity that has your lights on and your computer charging comes from natural gas, coal, nuclear--or alternative sources if you care (if you notify your utility company that you want to purchase only solar or wind power, they're required by law to buy your allotment from alternative sources).

Some good news--the U.S. Energy Information Administration estimates that another 1%--an additional 35 billion kWh of electricity generation--came from solar roofs, otherwise known as "small-scale solar photovoltaic systems." Small stuff, but a start, compared to the about 4.12 trillion kWh of electricity were generated at utility-scale electricity generation facilities in the United States.

Here's where all the gigawatts in consumption-central (the USA) came from in 2019:

U.S. utility-scale electricity generation by source, amount, and share of total in 20191

Energy source	Billion kWh	Share of total
Total - all sources	4,118
Fossil fuels (total)	2,580	62.7%
Natural Gas	1,582	38.4%
Coal	966	23.5%
Petroleum (total)	19	0.5%
Petroleum liquids	12	0.3%
Petroelum coke	7	0.2%
Other gases	14	0.3%
Nuclear	809	19.7%
Renewables (total)	720	17.5%
Hydropower	274	6.6%
Wind	300	7.3%
Biomass (total)	58	1.4%
Wood	40	1.0%
Landfill gas	10	0.2%
Municipal solid waste (biogenic)	6	0.1%
Other biomass waste	2	0.1%
Solar	72	1.8%
Photovoltaic	69	1.7%
Solar thermal	3	0.1%
Geothermal	16	0.4%