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Energy and global warming

image credit: Rafael Herzberg
Rafael Herzberg's picture
Consultant energy affairs Self employed

Rafael Herzberg- is an independent energy consultant, self-employed (since 2018) based in São Paulo, Brazil* Focus on C level, VPs and upper managers associated to energy related info, analysis...

  • Member since 2003
  • 2,213 items added with 1,291,718 views
  • Jul 17, 2021

Energy and global warming

Reducing emissions is a matter of humanity's survival.

But...the existing conversion processes of a large part of the uses we make of energy today are very inefficient. Two examples:

* Gasoline, ethanol and diesel vehicles which account for the Brazilian fleet, convert only 20% of the chemical energy contained in the fuel into motion.

* Thermal power plants ) that produce electricity have an efficiency of from 30% (open cycle) to 50% (combined cycle). and account for 30% of the country's power matrix.

It is high time to plan a new stage, focusing on hydroelectric generation associated with reservoirs, distributed (renewable) generation and electrical vehicles (80% efficiency)..

Matt Chester's picture
Matt Chester on Jul 19, 2021

The challenge is that these fossil fuels have long reigned supreme because of their high energy density-- it wasn't as important that they weren't the most efficient energy conversions because there was so much energy in each drop

Rafael Herzberg's picture
Thank Rafael for the Post!
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