Fewer New Zealanders switched off their lights for Earth Hour last night than last year.
National power grid operator Transpower reported power consumption was down 2 percent for the World Wide Fund for Nature-sponsored climate change awareness event, compared to the 3.5 percent savings recorded last year.
Those on the West Coast apparently signalled the greatest awareness and saved the most, saving 13 percent.
Canterbury saved 8 percent, Wellington used 4 percent less and Auckland 1 percent.
Otago-Southland, Otago-Southland Northland, Bay of Plenty and Taranaki registered no difference.
The hour, which took place between 8.30pm and 9.30pm last night, was the fourth of the annual awareness days to take place.
Kiwi landmarks including Auckland's Sky Tower, Wellington's Beehive, Paeroa's L&P bottle and Te Puke's giant Kiwifruit all turned off their lights, along with other places of note including the Pyramids, Big Ben, the Eiffel Tower, San Francisco's Golden Gate Bridge, the Sydney Harbour Bridge and the Acropolis.
The government of Tuvalu turned off power for the whole of the low-lying country.
NZPA