@gimulnautti @janhaverkamp Plenty of market-based, renewable and reliable technologies already exist in Finland to ensure renewable heat supply through winter. Industrial and municipal CHP incl W2E, biogas/biomass boilers & sustainable local feedstocks, hydro, semi-deep boreholes & regenerative geoenergy etc. Near zero energy buildings reduce demand.

Several heat storage facilities are and will be built, incl. world's largest #SeasonalStorage site in Vantaa.
https://www.yit.fi/en/in-focus/10-questions-and-answers-regarding-the-vantaa-seasonal-heat-storage

@Sustainable2050 @martinvermeer There are indeed hydrogen projects underway but can they scale up quickly enough? Adding 2 or 3 GW of wind each year is quite a pace, and capacity factors are also improving.
I assume part will go to heating, but we also need new heat storage capacity in district heating networks to absorb that wind energy when available, and cover few days of dunkelflaute.

One #SeasonalStorage is being built in Vantaa, but it takes 5 years..
https://www.yit.fi/en/in-focus/10-questions-and-answers-regarding-the-vantaa-seasonal-heat-storage

#Helsinki energy utility Helen invests100M€ (incl. 14M€ govt. grant) in new #heatPump to produce 90MWth #DistrictHeat and 60MWth #DistrictCooling.
Heat source is wastewater, that has already delivered heat to the #KatriVala heat pump station, but with heat remaining.

Heat pump should be operational in late 2025 and deliver 460 GWh/a heat.

Too bad #SeasonalStorage is not included in this project, that could add value when power price volatility increases.

https://www.helen.fi/uutiset/2022/tyo-ja-elinkeinoministerio-on-myontanyt-investointitukea-helenin-uudelle-eiranrannan-lampopumppulaitokselle

#Helsinki energy utility Helen invests100M€ (incl. 14M€ govt. grant) in new #heatPump to produce 90MWth #DistrictHeat and 60MWth #DistrictCooling.
Heat source is wastewater, that has already delivered heat to the #KatriVala heat pump station, but with latent heat remaining.

Heat pump should be operational in late 2025 and deliver 460 GWh/a heat.

Too bad #SeasonalStorage is not included in this project, that could add value when power price volatility increases.

https://www.helen.fi/uutiset/2022/tyo-ja-elinkeinoministerio-on-myontanyt-investointitukea-helenin-uudelle-eiranrannan-lampopumppulaitokselle

The fokus should now be on quick solutions that work, like #energyEfficiency, #insulation and #heatRecovery in existing building stock, and automation for #DemandSideManagement. Thermal #SeasonalStorage and bidirectional low-temperature #DistrictHeating should also be expedited. #Biogas has plenty potential still unused. #SolarEnergy both PV and thermal, will provide cheap energy March-October.