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I agree pumped hydro is good, but there are only so many places you can site it. > Which is why hydrocarbons produce less CO2 per watt than coal. No. It has n
by paulyg 10y ago
I agree pumped hydro is good, but there are only so many places you can site it.
> Which is why hydrocarbons produce less CO2 per watt than coal.
No. It has nothing to do with water. Coal is a hydrocarbon as well. It has to do with the type of hydrocarbon chains.
- Retric 10y agoAnthracite coal is up to 85.7% carbon by weight the rest is not pure hydrogen but a mix of sulfur, oxygen, nitrogen, and hydrogen. (And yes, that Oxygen lowers the energy density while increasing CO2 release.) Natural gas is 25% hydrogen 75% carbon. Burning hydrogen produces water not CO2. So, while the specific bonds play a role the actual carbon vs. hydrogen content is a major issue.