Electronics > Power/Renewable Energy/EV's

ARES Advanced Rail Energy Storage. 86% Efficient?

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rx8pilot:
http://www.vox.com/2016/4/28/11524958/energy-storage-rail

I was reading this article on a project hoping to offer energy storage for unstable renewable sources. At first it seemed reasonable until I get to the part where they claim an 86% end-to-end efficiency which seems wildly over estimated. This is a complicated system and I don't have the skills or the time to do my own estimate so it is only a gut feeling. It seems like the solar roadway project.

Anyone care to comment?

ataradov:
https://www.eevblog.com/forum/chat/i-think-i-smell-something/msg931677/

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