| Annual national electricity generation, total and hydrogeneration, 1974-2013 | Environmental Reporting | Ministry for the Environment | Creative Commons Attribution 3.0 New Zealand | Table | Table | 6752 | 23 | ||
| Asset value of water resources used for hydroelectric generation, 2007–15 | Environmental Reporting | Ministry for the Environment | Creative Commons Attribution 3.0 New Zealand | Table | Table | 6431 | 9 |