Comments on: The man behind Sankey diagrams @ LLNL

By: Colm O'Gairbhith

Colm O'Gairbhith — Mon, 18 Apr 2011 15:44:47 +0000

Rejected energy comes mainly from electricity generation and transportation.

For electricity generation, the most modern gas-fired generating stations are at best ~50% efficient with the rest wasted. There are also losses of 5~10% in transmission of electricity.

For transport, the internal combustion engine has an efficiency of ~25%, the rest is considered waste.

By: dork

dork — Tue, 14 Dec 2010 20:25:29 +0000

Rejected energy refers to energy that is wasted due to inefficiencies in the system. i.e due to heat, transmission losses etc etc

By: MySchizoBuddy

MySchizoBuddy — Thu, 09 Dec 2010 14:10:27 +0000

Can you clarify what “rejected energy” means. why is it rejected?

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