Clifton Terrace Model School - Wellington City - 4 kw
The first solar array at Clifton Terrace Model School was installed in March 2009 and consisted of 12 x 170 Watt photovoltaic panels giving a total capacity of slightly over 2 kilowatts.
In April 2014 the second solar array was installed. This consisted of 16 x 250 Watt panels giving a total capacity of 4 kilowatts, double the capacity of the 2009 array.
It is interesting to note the steady improvements in the technology over this time. Although each new panel has about 25% more area than the old ones, they can produce nearly 50% more power. This means less roof area is needed to generate the same amount of electricity.
Not only has technology improved but so have the economics! In the five years since the 2009 Clifton Terrace PV system was installed, the total costs per kilowatt installed have fallen by nearly two thirds !
The graphs for the older 2 kW array, and the main profile for Clifton Terrace Model School can be found here.
This graph below is from the amazing new technology starting to be used by Schoolgen which shows live solar generation from both the 2kW and 4kW solar arrays that Genesis energy has given to the school as well as how much electricity the school is using from the Grid. To see the other trial school in Wellington visit their Schoolgen profile page.