National Grid is based out of the UK and has subsidiaries throughout the U.S. Therefore NG covers more ground than Con Ed which is domestic energy provider.
National Grid owns Niagara Mohawk in New York State , which alone covers a larger area
Serves upstate NY which is larger area
COn ed located in tri state region whereas National Grid is in multiple states and countries
I hate ConEd!
It covers U.S. and Great Britain (England), but Con Ed covers only U.S.
It's true
