Kees van der LeunJan 11, 2023
Finland’s wind power capacity increased by 75% last year, leaping from 3.2 to 5.7 GW. Share of total electricity expected to grow from 10% last year to 28% by 2025!
https://www.euractiv.com/section/politics/news/finlands-wind-power-capacity-increased-by-75-last-year/
Finland’s wind power capacity increased by 75% last year

An increase of 75% in wind power capacity in 2022 has resulted in foreign investments in the country rising, a

EURACTIV
Show threadMartin Vermeer FCDJan 11, 2023
@Sustainable2050 Several huge (2-4 GW nominal) offshore projects are in environmental impact assessment right now. Map from the Finnish Wind Power Association.
https://tuulivoimayhdistys.fi/en/wind-power-in-finland/map
Map - Suomen Tuulivoimayhdistys

Suomen Tuulivoimayhdistys
Show threadHenri HornJan 11, 2023
@martinvermeer @Sustainable2050 #Windpower is indeed growing quickly in Finland, with no subsidies. Fingrid expects 20GW total installed wind capacity by 2030, but i wonder if we have enough demand?

Tonight power price drops to almost zero, 0,01ct/kWh at 03:00am as wind output exceeds 4GW. And this despite the heating season and the new 1.6GW OL3 nuclear reactor isn't even running.
Show threadKees van der LeunJan 11, 2023
@henrihorn @martinvermeer The idea is to produce hydrogen, ammonia, and methanol with it as well.
Show threadHenri HornJan 11, 2023

@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

Vantaa seasonal heat storage

The world's largest seasonal heat storage facility is being built in Vantaa, Finland, using an alliance model. In the alliance, YIT, AFRY and Vantaa Energy will jointly design and build a unique, modern and sustainable heat storage facility.

Show threadMartin Vermeer FCDJan 11, 2023
@henrihorn @Sustainable2050 Heat storage has rather poor efficiency numbers, but at least it's simple and cheap to implement, when the alternative is curtailment. Underground hydrogen storage seems the way to go. For the seasonal cycle, there is the right mix of wind and PV.
Show threadHenri Horn

@martinvermeer @Sustainable2050 Thermal storage can be quite efficient when charging with heat pumps and using large units with relatively lower losses. Cheap auxiliary resistors could absorb the highest peaks of wind output to avoid negative prices and curtailment, like you said.

Before the energy crisis, district heat retail price in 🇫🇮 was often higher than Nordpool power price. So industrial power consumers like (tax-exempted) data centers could make profit just by selling waste heat...

Jan 12, 2023 at 5:27amWeb