The Price Elasticity of Supply for energy generated from nuclear power plants is likely to be quite low, likely below 1 – PES is calculated by %change in quantity supplied / %change in price, indicating that a %increase in price would result in a less than proportional increase in quantity supplied. One of the factors influencing PES is time taken to fill demand – according to the extract, building a new power plant at Hinkley Point has taken 10 years, suggesting that an increase in price cannot necessarily be met by a quick increase in quantity supplied.