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Francis Combe School is a secondary school attended by 718 students. It was built in the 1950s and has a system-built structure with a number of wings that are one, two and three storeys in height.

The school was approached by the School Standards and Curriculum Division of Hertfordshire County Council to apply for the School Energy grant. The school Standards and Curriculum Division identified a number of improvements and new energy saving opportunities that would be suitable for the school and reported on approximate costs and annual savings.


Energy saving measures installed include new boiler controls, thermostatic radiator valves, electronic room thermostats, replacement of electronic space heating and low energy lighting.

Anticipated savings per year are 177,856 kWh or 10.96 tonnes of carbon. This equates to £1,550 or 6.5% of the total fuel bill. The payback time is 4.8 years.

Project team

Francis Combe School

Hertfordshire County Council

Further information