Group items tagged

If you watch The Green Optimistic you already know that we covered air cars in previous posts, both MDI CAT's and the Angelo DiPietro air motor. The first time we wrote about these inventions was about 6 months ago. Now, MDI and Angelo DiPietro have contracts all over the world with auto makers to sell them the compressed air technology

Ireland's OpenHydro and Germany's RWE are spending millions to try to turn the power of waves into electricity With oil prices hitting almost daily record highs and global warming climbing up the public agenda, the need for alternative energy sources has never been more urgent. But while wind and solar have dominated the recent rush to invest in renewables, market watchers reckon it could now be marine energy's turn to shine. Ocean power-using the energy from waves or tidal flows to produce electricity-is quickly coming of age as a viable green resource that could help meet ambitious global targets to reduce greenhouse gases and dependency on fossil fuels. European and North American power companies such as Canada's Emera (EMA.TO) and Germany's RWE (RWEG.DE) are spending millions to fund wind and tidal projects. This investment has led to a new generation of more efficient technologies, with dozens of prototypes expected to be ready for commercial deployment within the next five years. "There's huge interest in both wave and tidal technology," says Thomas Boeckmann, clean tech analyst at market research firm StrategyEye in London. "It's gaining a lot of attention from energy companies, which will be able to offer financial backing and technical expertise to these startups."

The Policy Brief for a Global Green New Deal, developed by economists and the UN ahead of the G-20 meeting of world leaders in London in early April, highlights the benefits of investing a significant amount of the $3 trillion-worth of global stimulus packages in five areas. According to a news release issued by the UN Environment Programme (UNEP), these areas include raising the energy efficiency of old and new buildings, as well as renewable energies including wind, solar, geothermal and biomass.

Interesting angle about India's role. The article in science magazine that is referred to: https://science.sciencemag.org/content/367/6473/30. We already referred to this story before at https://groups.diigo.com/group/trends/content/world-risks-shortage-of-materials-for-evs-and-wind-turbines-without-agreements-for-green-supply-chains-experts-warn-17976959

Another one in a series of studies on this topic. This one predicts an 87,000% increase in the demand for battery materials which is not very helpful. Exponential extrapolation from a small basis over a long time horizon can basically come up with any growth figure. The logistic growth curve is a much better and proven model for technology transitions.

"Demand for cobalt, copper, lithium, cadmium, and rare earth elements needed for solar photovoltaics, batteries, electric vehicle motors, wind turbines, fuel cells, and nuclear reactors is set to explode in the coming years as countries around the world invest heavily in greening their economies".

Orginal source: https://science.sciencemag.org/content/367/6473/30 (though (also behind a paywall) and http://www.sussex.ac.uk/broadcast/read/50598. The latter mentions the 87000% figure referred to in the above comment.

'Green gentrification', the global equivalent for the terms 'energy poverty' and 'fair transition' in the EU. A genuine issue for broader society. The copper perspective: energy efficiency, cost-effectiveness, electrical safety.