The pie charts below shows electricity generation by source in New Zealand and Germany in two different time period : 1980 and 2010. Perspectively, the sources of electric generation were divided into five segments : coal, petroleum, natural gas, nuclear and hydro, which were measured by units.
In the first time period, there were a total of 127 units in New Zeleand and 107 units in Germany. In New Zeleand, majority of electricity were generated from Coal by 56 units, followed by two same amount of units—natural gas and hydro, figuring 30 units to be exact and only 11 units of petroleum were used. On the other hand, society in Germany mostly used natural gas and coal by 28 units. Secondly, petroleum exceed over 20 units, 22 units to be precise, while 20 units of nuclear were used and lastly, only 7 units of hydro were used.
In the second time period, overall, there were a total of of 200 units in New Zeleand and 214 more in Germany. In New Zealand, while coal and hydro were the main source of electric generation by 150 units and 46 units, natural gas and petroleum were significantly decreased—2 units , to be exact. Going forward to Germany, 155 nuclear units were used, followed by petroleum, increased by 5 units. In addition It was unexpected that in 2010, natural gas goes downward in trend to 2 units while coal remains the same
