Tagged: electricity

Could electric car batteries feed power back into the grid? - Climate: Explained

Guest Author Aug 05, 2020

Climate Explained is a collaboration between The Conversation, Stuff and the New Zealand Science Media Centre to answer your questions about climate change. If you have a question you’d like an expert to answer, please send it to climate.change@stuff.co.nz Why can’t I use the battery from my electric car to export solar power to the grid when … Read More

New Zealand wants to build a 100% renewable electricity grid, but massive infrastructure is not the best option - Guest Work

Guest Author Jul 31, 2020

Janet Stephenson, University of Otago A proposed multibillion-dollar project to build a pumped hydro storage plant could make New Zealand’s electricity grid 100% renewable, but expensive new infrastructure may not be the best way to achieve this. New Zealand’s electricity generation is already around 80% renewable, with just over half of that provided by hydro power. The … Read More

Power play: despite the tough talk, the closure of Tiwai Point is far from a done deal - Guest Work

Guest Author Jul 15, 2020

Geoff Bertram, Te Herenga Waka — Victoria University of Wellington Another year, another round of hostage-taking by the owners of the Tiwai Point aluminium smelter. As always, Rio Tinto has made the first move, threatening to close New Zealand Aluminium Smelters (NZAS) in Southland unless some ransom is paid. A thousand jobs would be lost, with a further 1,600 … Read More

Could the world stop using fossils fuels today? - Climate: Explained

Guest Author Jun 03, 2020

Climate Explained is a collaboration between The Conversation, Stuff and the New Zealand Science Media Centre to answer your questions about climate change. If you have a question you’d like an expert to answer, please send it to climate.change@stuff.co.nz If we stopped oil, gas and coal extraction immediately – what would happen? What would we need to … Read More

Twenty thousand leagues under the sea - Physics Stop

Marcus Wilson Oct 31, 2019

I’ve been reading Jules Verne’s novel Twenty thousand leagues under the sea, considered as one of the very earliest science fiction stories. In brief, Monsieur Aronnax and a couple of sidekicks are taken prisoner by Captain Nemo and his mysterious crew and treated to an underwater voyage around the world on the truly expansive submarine, Nautilus. They get to visit … Read More

Green electricity: Is it for real? - Planetary Ecology

Robert McLachlan May 26, 2019

Stop flying, cut out red meat, switch to an electric car or, better yet, a bike.  Newspapers and websites are full of stories of people who have made the switch to a low-emission lifestyle. The stories are inspiring, to me anyway, and they are definitely newsworthy. But, at least judging from the online comments (‘Not gonna happen!’), they can be … Read More

Green sky thinking - Ariadne

Robert Hickson Apr 09, 2018

We are starting to see more scenarios about getting to a “decarbonised” future. One where greenhouse gas emissions are no longer a problem. Many scenarios are forgettable. The good ones have the power to create the change. Shell has added a new futures scenario, called Sky, to its New Lens scenario set. I think … Read More

Nikola Tesla: The extraordinary life of a modern Prometheus - Guest Work

Guest Author Jan 08, 2018

Richard Gunderman, Indiana University.  This article was originally published on The Conversation. Read the original article. Match the following figures – Albert Einstein, Thomas Edison, Guglielmo Marconi, Alfred Nobel and Nikola Tesla – with these biographical facts: Spoke eight languages Produced the first motor that ran on AC current Developed the underlying technology for wireless communication … Read More