A headteacher was shocked to find out his school's energy bill is set to soar by a staggering £95,000.
Niall Smith, 51, said the electricity at Southborough High School, Surbiton, in Greater London cost £55,000 this academic year.
However, when the estimated bill from Opus Energy landed on his desk on June 27 it showed it would be an estimated £150,000 for the next school year.