Something interesting to watch !

Link here:

http://phys.org/news/2014-12-low-grade-regenerates-ammonia-battery.html?utm_source=nwletter&utm_medium=email&utm_content=ctgr-item&utm_campaign=daily-nwletteror here

Big AL

That's cool. There is a large market for turning heat from things like ovens back into usable electricity, using this for geothermal could be a great possibility, scalable to the size necessary. Not sure how a battery like this packages but it sounds cool. I haven't seen any progress with peltier or cool chip type inventions, this could be promising.

Quite related:

"Urine Battery Turns Pee Into Power"

http://news.nationalgeographic.com/news/2005/08/0818_050818_urinebattery.html

BTW you can download the whole study of the ammonia battery here:

https://www.researchgate.net/publication/268452724_A_thermally_regenerative_ammonia-based_battery_for_efficient_harvesting_of_low-grade_thermal_energy_as_electrical_power