Your gas usage over the last year of 530,000 kWh is too high. Other schools of a similar floor area use 430,000 kWh.
Your electricity baseload over the last year of 8.5 kW is high. Other schools with a similar number of pupils have a baseload of 2.5 kW.
Your electricity usage over the last year was 200,000 kWh. This is too high. Other schools with a similar number of pupils use 67,000 kWh.