Question

In, 2017 the United State generated about 1,270,000 gigawatt-hours from natural gas and about 804,000 GWH from nuclear power stations for electrical power. Convert the electrical energy from GWh to Twh to 4 significant figures for both natural gas and nuclear power.

Answer 1

$\text{Solution :}\\ 1 \ GWH = 10^9 \ W \\ 1 \ W = 10^ {-12} \ T w h\\ \ \ \\ \text{Given :}\\ \text{Power of natural gas : }\\ P = 1270000\ GWh \\ P = 1270000 \times (10^9 \ W ) \\ P = 1270000 \times 10^9 (\times 10^ {-12} \ Twh ) \\ P = 1270.0000 \ Twh\\ \ \\ \text{Similarly for nuclear power :} \\ P = 804000\ GWh \\ P = 804000 \times (10^9 \ W ) \\ P = 804000 \times 10^9 (\times 10^ {-12} \ Twh ) \\ P = 804.0000 \ Twh\\$