Latest investment costs for heat pumps

[toniseibold]

Addressing https://github.com/PyPSA/pypsa-ariadne/issues/72 Kudos to @lisazeyen

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Heat pump investment costs

Current assumptions

• investmet costs for Single-Family House and Altbau
• typical size 10 kW_th per heat pump
• air-sourced (Luft-Wasser) 3319 Eur-2024/kW, ground-sourced (Sole-Wasser) 5340 Eur-2024/kW

These investment costs are in Eur-2024 and should be discounted to Eur-2020 -> assume inflation rate 0.5% (2020), 3.1% (2021), 7.9% (2022) und 6.5% (2023) an -> ~0.84*investment_cost_2024

source

• also contains Multi-Family-House assumptions (22 kW_th per unit)
• air sourced 3029 Eur-2024/kW, ground sourced ~4252 Eur-2024/kW

BDEW-Heizkostenvergleich Altbau 2021 (Original source for Ariadne)

• assume old house with old gas boiler installed, heat pump + Durchlauferhitzer for warm water
• air sourced heat pump: SFH (p.17 EFH_08) 2107 Eur-2021/kW, MFH (p.23 FH_08) 2074 Eur/kW
• ground sourced (Sole-Wasser-WP): SFH (p.18 EFH_14) 3832 Eur-2021/kW, MFH (p.23 FH_10) 3051 Eur/kW

I assume it is Eur-2021 but it is no where stated Similar values for houses with existing oil boilers Includes costs of heating area/low-intensity measures of around 5000 euros per heat pump, costs include VAT

Check heat pump installers thermondo, enpal

current costs around 2000-3000 Eur-2024/kW for air sourced and 1200-4500 Eur-2024/kW for ground-sourced heat pumps depending on the insulation of the building

DEA update (not integrated in technology-data)

• existing SFH, 7 kW heat pump, air sourced ~1564 Eur-2020/kW, ground sourced 2072 Eur-2020/kW
• existing Apartment, 320 kW heat pump, air sourced 688 Eur-2020/kW, ground sourced 641 Eur-2020/kW
• Since about 50% of the costs are for installation and there is learning on that as well, I excpect the German costs to be higher. This is also the reason why investment cost decrease so strongly with apartment blocks (160-320 kW heat pumps)

Conclusion

take BDEW costs from original source, heat pump + Durchlauferhitzer + small necessary changes to heating system, mean value of SFH and MFH, discount back to Eur-2020 and reduce VAT (19%) since this is not included in DEA cost assumptions so it would be

• air sourced heat pump (2107+2074)/2*0.81=1693 Eur-2021/kW
• ground sourced heat pump (3832+3051)/2*0.81=2788 Eur-2021/kW "

[lisazeyen]

@toniseibold be aware that the investment costs are in Eur-2021 and have to be discounted to Eur-2020.

air sourced heat pump (2107+2074)/2*0.81=1693 Eur-2021/kW

ground sourced heat pump (3832+3051)/2*0.81=2788 Eur-2021/kW

Source for the data is only https://www.bdew.de/media/documents/BDEW-HKV_Altbau.pdf

[toniseibold]

Fixed by dividing all costs by (1 + 0.005)

[toniseibold]

Also correcting NEP21 costs by the same division