Changing hydrogen central production cost for wind and solar technologies

[ysimsek10]

Hi, I want to change hydrogen central production cost for wind and solar technologies. When I check “Hydrgogen.xml” file I see 2 costs as follows: For electrolyzer cost (non-energy cost), I think I can change from ‘H2A_electrolyzer_NEcost_CF.csv’ files however the second part of the cost, which is wind turbines in this example, I could not find which csv file/s are related to this cost. Also, I assume this is not non-energy cost although it is written non-energy input?

Thanks for your help! Best.

[Youyi77]

I think that one is in A25.globaltech_cost?

[pkyle]

The "wind turbines" portion of the capital cost is inherited from the electric power sector where there are explicit assumptions about capital costs, fixed charge rates, fixed O&M costs, base capacity factors (i.e., the capacity factor of the least-cost turbines installed in the region), and supply curves, in each region and time period. Wind for hydrogen electrolysis and for the general electricity market share the same set of assumptions and resource bases in each region and time period. There isn't any built-in capability for users to assign the costs of wind or solar electrolysis independently, because these assumptions should always be consistent with the corresponding assumptions for producing electricity in general.

[Youyi77]

Hi @pkyle, a quick follow-up on this. So does it make sense to change the wind/solar electricity inputs (either efficiency or costs) to simulate an aggressive development of wind/solar electricity, thus stimulating the relevant H2 central production?

I noticed there are solar_adv.xml and wind_adv.xml which already fulfill the goal. (Seems that they are mainly used for SSP simulations)

Also wondering in the default configuration file, why the electricity line is commented but not activated?

Thank you!

[Youyi77]

Just realized: electricity_water contains the info for electricity.

[pkyle]

Yeah that's right, the electricity.xml file contains a representation of the power sector that doesn't take water inputs or have cooling system types disaggregated. It hasn't been tested in years so I don't advise trying to run with that. I think if you want to switch to using the "advanced" assumptions in solar_adv.xml and wind_adv.xml for the hydrogen production sector you'd need to switch out the data tables in the hydrogen code file zenergy_L225.hydrogen.R which only pulls in the reference assumptions in L223.GlobalIntTechCapital_elec with the ones used to build those advanced XML files.

             "L223.GlobalIntTechCapital_sol_adv",
             "L223.GlobalIntTechCapital_wind_adv",

[Youyi77]

Thanks, @pkyle Got it!! Appreciate the advice!