The map above shows which US states used the most electrical energy for both light and power in 1921. Essentially the map is showing a combination of which states had the most people combined with commercial and industrial activities.
The map above gives a near real-time view on how much CO2 was emitted to produce the electricity consumed in select European countries. You can drill into data from each country to see where and how your electricity is being generated.
Furthermore the map takes into account electricity imports and exports. You can access all the data and current live map here.