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All of the energy is still coming from the oxidation of carbon.If burning the carbon is 40% efficient, going to 100% efficient would be 2.5 times more energy.Your claim of 3 times more energy implies somehow being more efficient than 100%.
You are wasting 4 MWh to get 6 MWh already, which is 66% wasted energy.
If you can get 6.5 MWh out of the CO, why can't you get more than that out of the C?
The energy from the hydrogen came from splitting the hydrogen away from the water, so you can't count that.
This whole idea assumes that the renewable energy can't be used to reduce carbon burning.
We are decades away from that point.
There are less wasteful ways to store renewable energy,
and cheaper ways to get that energy to places where carbon is still being burned.
Putting the money into improving the grid makes more sense.
First, coal is 65-90% carbon.Second, I’m struggling to understand your numbers. From first principles:Regular carbon oxidationC+O2 = -393 kJ/molSyngas oxidationCO + O = -283 kJ/molH2 + O = -286 kJ/molEnergy to synthesize syngasH2O -> H2 + O = 286 kJ/molC + O = -110 kJ/mol (wasted, or recovered at low efficiency)Even assuming 100% efficiency for the H2O -> H2, syngas produces -283 kJ/mol vs -393 kJ/mol for carbon.While there is value in removing impurities and water in coal to get to higher combustion efficiencies, it is not obvious that turning coal into syngas is a good way to accomplish thisWhat am I missing?
C + H2O -> CO + H2 Delta H = +131 kJ/mol (endothermic)
It takes just over 3 MWh/ton to drive this reaction and just under 1 MWh to make the 1.5 tons of superheated steam consumed by the reaction. Wet coal (or wet MSW) is not a problem.
PG
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I have not run the numbers yet, but induction heating may be a way to reduce one of the largest CO2 sources, namely, making steel. I don't know how high it is, but a substantial fraction of the coke or coal that goes into blast furnaces is burned to provide process heat. You still need to reduce the iron oxide, but providing the heat from electric power would (I think) considerably decrease the CO2 per ton of steel produced. This is subject to careful examination by metallurgists. It will take them a bit of time to consider decoupling the source of process heat from the reduction process.
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If this issue is going to matter in elections, it needs to translate into something concrete.
Here is a credible 3-point plan that directly addresses farm economics, energy security, and resilience:
Co-locate:
Low-cost electricity (wind/solar in high-resource regions)
Hydrogen production (electrolysis, scaling over time)
Ammonia plants near major agricultural zones
Goal:
Reduce dependence on volatile natural gas markets and global supply chains by producing fertilizer closer to where it is used.
Political message:
“Make fertilizer in America, near American farms.”
Support deployment of:
Long-duration storage (including flow batteries and other chemistries)
Containerized systems at substations and rural co-ops
Why it matters:
Stabilizes power prices in rural regions
Enables reliable use of low-cost renewable energy
Protects farms from grid instability and price spikes
Political message:
“Lower power costs and keep the lights on in rural America.”
Current hydrogen initiatives exist—but lack focus.
Redirect incentives to:
Prioritize ammonia production for fertilizers, not just industrial or export uses
Support early projects that link hydrogen → ammonia → agriculture
Create long-term price stability mechanisms for fertilizer producers
Goal:
Turn hydrogen from a vague future industry into a direct tool for lowering farm input costs.
Political message:
“Use American energy to cut fertilizer prices.”
This is not about choosing between fossil fuels, renewables, or nuclear.
It’s about connecting energy policy to the cost structure of agriculture.
Right now, U.S. policy treats these as separate
issues.
That is why farmers feel ignored—and why this is politically volatile.
A candidate who says clearly:
“We will lower your fertilizer costs by producing it here, powered by American energy”
…is not making a climate argument.
They are making an economic argument farmers can immediately understand—and vote on.