writes:
On Tue, 30 Mar 2021 20:16:13 GMT, (Scott Lurndal)
wrote:

There are still coal fired plants around DC. Just how clean is that
electricity?

That's not particularly difficult to find out. See the paragraph
that starts with "In June 2007".

https://en.wikipedia.org/wiki/Capitol_Power_Plant


There are also 4 coal fired plants in Maryland and 2 in Alexandria Va
that feed into that grid.
The 2 in Alexandria are WWII vintage plants that environmentalists
have been trying to close since I lived there.

Are you unable to google? The Potomoc River Generating station
in Alexandria was shuttered in 2012.