(with Examples) 1  An abstract noun is a word which names something that you cannot see, hear, touch, smell, or taste. It is the opposite of a concrete noun. 2  It is not always easy to spot an abstract noun, and it is common for grammarians to argue over whether the thing represented by a noun is perceivable or not.
Household electricity use: 6,000 kWh per household per year for 3 residents average per household. So the household use per capita is 2,000 kWh or about of per capita electricity from all applications. Household Natural Gas use: 400 therms per household x 30 give 12,000 kWh equivalent electricity.
In the USA, a rule of thumb is that the average house consumes electricity at the rate of 1 kW per hour (kWh). There are about 730 hours in each month, and the average price of a kWh of electricity is $0.10. So an average monthly bill would be around $73 for 730 kWh of electricity.