EnergyInnovation / eps-us

Energy Policy Simulator - United States
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Add graph of industrial use of intermediate energy carriers (within facility walls) #288

Open jrissman opened 8 months ago

jrissman commented 8 months ago

The EPS currently reports the fuels, electricity, and heat (steam) purchased and consumed by each industry. However, some industries transform some of those fuels into a different, intermediate energy carrier before consuming that energy carrier. The examples I'm aware of are:

On 10/27/23, Al Armendariz asked if we could get the EPS to report the quantity of RFG consumed at refineries. If we want to add this feature, I think it makes sense to generalize it to cover more intermediate energy carriers than RFG. I'd divide them into five categories:

  1. Unusual fossil-derived chemicals and mixtures: includes RFG, BFG, and gases separated from natural gas processing
  2. Biogenic byproducts: from pulp & paper, wood & wood products
  3. Hydrogen
  4. Electricity
  5. Heat/steam

I think it's clear we would not want to include 5 (heat/steam) on an intermediate energy carriers graph, as most industrial energy use goes into making heat. It would dominate the graph and is not what people are interested in tracking when they talk about intermediate energy carriers like refinery fuel gas.

There's a better argument for including the other four items on an intermediate industrial energy carriers graph. We could include all of them or only some of them. At the least, I'd say that refinery fuel gas, blast furnace gas, and gases separated by natural gas processing plants would be the top priority.

We would likely need a new "industrial intermediate energy carriers" graph, because including these intermediate energy carriers on the same graph as purchased energy inputs could create double-counting (and even if not, could be confusing).