Output after deduction of pumped volumes for storage represented 10 7TWh in the first quarter 2015 and 10 4TWh in the first quarter 2016 . 4 PRESS RELEASE 10 May 2016 United Kingdom. Temperatures during the period were above normal and 0 8 °C higher than in the first quarter 2015, which led to a 3.8TWh decrease in the volume of electricity sold to end customers.
