This year we have only been able to measure the electricity usage in Southwell Hall, where there was a 5.1% reduction in electricity use over the months of October, November and February.

If these figures are indicative of the impact of the campaign across all the halls, then we estimate that electricity usage has been reduced by 13.500kWhs, which is equivalent to 7 tonnes of CO2, half a million cups of tea or 82 flights from London to Manchester.

If you want to get involved in the campaign then sign up as an Eco-Power Ranger by joining the Imperial Eco-Power Rangers Facebook group and posting your name and the name of your hall on the wall of the group.

The latest number and % of students signed up as Eco-Power Rangers in the different halls is as follows: