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Politics : Rat's Nest - Chronicles of Collapse
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To: Wharf Rat who wrote (2694)10/17/2005 1:07:10 PM
From: Wharf Rat  Read Replies (1) of 24225
 
E R O E I ...what does it mean?

(Long series of articles, not all finished yet)

No, it is not something that those dwarfs with the funny caps sing.

It means: Energy Returned On Energy Invested

OK, what does THAT mean?

Here is an easy explanation. First, let's break this concept down into smaller chunks:

ENERGY INVESTED is this -

In order to ACQUIRE energy, it TAKES ENERGY.
In order to TRANSPORT a form of energy, TAKES ENERGY.
In order to STORE energy, TAKES ENERGY.
In order to USE energy, also TAKES ENERGY.

ENERGY RETURNED is this -

After you have taken into account all the energy used above...how MUCH ENERGY do you have left? OR How much energy does it actually COST in order to USE a particular form of energy?
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