Pellet boilers for decentral use #255
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@millingermarkus great, thanks a lot! Are your PRs ready for review or are you planing to make further changes? |
You are welcome, they are ready for review! |
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Thanks a lot @millingermarkus for breaking all your changes into small PRs. Looks really good, I only have two remaining questions
| @@ -1521,6 +1521,22 @@ def add_heat(n, costs): | |||
| capital_cost=costs.at[key, 'efficiency'] * costs.at[key, 'fixed'], | |||
| lifetime=costs.at[key, 'lifetime'] | |||
| ) | |||
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| if options["biomass_boiler"] and name not in ["urban central"]: | |||
| #TODO: Add surcharge for pellets | |||
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is this TODO still open?
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Yes it is, but not so urgent in my mind. A surcharge improves cost accuracy but this tech plays a very minor role in my runs so far anyway. I'll add the pelletisation cost to technology data and refer to it here when I get there.
| bus2="co2 atmosphere", | ||
| carrier=name + " biomass boiler", | ||
| efficiency=costs.at['biomass boiler', 'efficiency'], | ||
| efficiency2=costs.at['solid biomass', 'CO2 intensity']-costs.at['solid biomass', 'CO2 intensity'], |
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the biomass boilers do not emit any CO2 are they? If not, one can remove the connection to bus2 and efficiency2 when adding them
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Well, no net emissions as long as biomass is assumed to be carbon neutral. So yes this connection is technically not necessary (but maybe good to keep for consistency with other biomass techs?). I think both are ok, you decide!
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Alright, I am going to remove it for now to be consistent with how we implement the biomass CHPs for example
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one more question @millingermarkus the costs and efficiencies for the biomass boilers should they be solid biomass boiler steam in the technology-data or did I missed something when pulling your changes into the main code?
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No, that tech was missing in the main technology data, I made a pull request now: PyPSA/technology-data#61
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