Thursday, June 28, 2012

Lets compare Thorium and Natural Gas as alternative energy source.



Thorium as alternative energy source
  • Carbon-free operation
  • Inherently far safer than conventional light water reactors
  • Abundant fuel (thorium)
  • Chemically stable
  • Currently being developed in China and by US companies like Flibe
  • Very small amount of low-level radioactive waste. Should be much easier to manage.
  • Concentrated energy source, requiring far less land than solar
  • Runs round the clock, good base-load and load-following source
  • Less suitable for weapons proliferation that conventional nuclear
  • Relatively low cost and scalable
  • Could potentially be used in a distributed manner
  • Technology is currently at the demonstration phase
  • Requires less cooling water than conventional reactors
Natural Gas as alternative energy source
  • Non-renewable fuel, supply cannot be replaced for millennia
  • Emits carbon dioxide when burned
  • Contains 80-95% methane, a potent greenhouse gas (GHG)
  • Explosive, potentially dangerous
  • Concentrated sources require long distance transmission and transportation
  • Energy penalties at every stage of production and distribution
  • Requires extensive pipelines to transport over land
  • Stored and distributed under high pressure
  • Requires turbine-generators to produce electricity
  • Liquefied form (LNG) used to transport over water, in tanker ships is potentially very dangerous
  • Energy use competes with use for chemicals and fertilizers
  • Additionally, there are significant environmental risks associated with “fracking”
  • Water pollution due to runoff of fracking chemicals
  • Companies are not required to disclose the composition of fracking chemicals (another example of lobbying in action).
  • Water can also bring up adsorbed underground toxins including arsenic
  • GHG footprint of shale gas greater than coal over 100 year time frame
  • Fracking has been linked to earthquakes
  • Casing leaks lead to gas in the water—blazing faucets
  • Fracking requires a large amount of water


    YOU DECIDE....

No comments:

Post a Comment

Related Posts Plugin for WordPress, Blogger...