On Friday 27th March at 2.15pm when the bell announced the end of lunchtime, a group of students went around school and reminded everyone to switch off lights and other electric appliances.
We have been recording the kW consumption with an electricity monitor for a week before and after the event in one block of the college. The blue line is the average consumption during the week, around 3.88 kW.
The green line is the kW consumption during the Earth Hour, averaging 1.50kW.
We have calculated that it saves about $20.
We propose to organise Earth Hour once a month, on the last Friday of each month.
The next Earth Hour will be on the 29th May.