“From 1 January to the end of April we’ve used around 50 per cent less thermal generation than the average between 2010 and 2016.”

Less thermal means more use of renewable generation – which is mainly hydro, but also includes wind generation.

“Not only is that better for the environment, it’s also better for the economy because renewable energy generally has much lower running costs than thermal generation.”

But Mr Hansen says whilst it’s good to see these trends, the ability of our renewable electricity generation to meet our needs can change quickly, depending on the weather.

“We need to ensure we have all of our bases covered when it comes down to having a reliable electricity supply.

“Renewable generation makes up a huge majority of our electricity (about 80 per cent) but as we’ve seen with the recent cold snap this past week we’re now drawing on alternative sources such as thermal to preserve our water levels ahead of winter.”

He says as the colder weather approaches it is a good time to look for electricity retailers offering attractive deals.

“The easiest way to do that is to go to whatsmynumber.org.nz(external link), put in your details and see how much you could save by switching supplier.”

Comparison of thermal output for 2017 with average for 2010-2016

Comparison of thermal output for 2017 with average for 20102016

Average use of generation sources 2010-2016

Average use of generation sources 20102016

For more information:

Amanda King
Communications Manager
Mob:+64 21 321 831
Email: amanda.king@ea.govt.nz