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Please scroll down for lots of useful information. There are links to industry and environmental journals, relevant dates in the environmental and renewable energy calendar, current debates, a solar PV Feed-in Tariff calculator, green products websites, campaign groups and more. Some of this might be a bit outdated given time considerations and the fact that I don't get paid for doing this, but I do try and keep it as fresh and new as I can so it's still worth checking out.

Monday, 9 May 2011

Batteries that run on sea water

It's true! A team from Stanford University is attempting to develop batteries that run on sea water, or more specifically entropic energy which can be extracted from the difference in salinity between fresh water and sea water. The process uses ions of sodium and chlorine, of which there are more in sea water. They use fresh water to start off with. The fresh water is charged and then subsequently drained and replaced by sea water. The charge is held inside one of the two electrodes which is made of manganese dioxide (the other electrode being made of silver). There is no need for a membrane as in other new types of battery. I've written an article on this for AskTheExperts which you can find here:

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Energy & Environment Dates 2012