Finland Power System 2050 – Estimated Investment Cost

A rough investment estimate for the proposed 2050 Finnish power system capacity structure can be calculated using typical European capital expenditure (CAPEX) values per installed megawatt. These values represent order-of-magnitude estimates, not project-specific budgets.

Assumed Unit Investment Costs (Typical EU 2025)

Technology Typical CAPEX (M€/MW)

Wind (onshore) ~1.3 

Nuclear ~7 

Solar PV ~0.7 

Battery storage ~0.5 

Hydropower ~4 

Long-duration storage ~1.5 

CHP / Biomass ~2.5 

DC backup gen. ~0.8 

Finland Power System 2050 – Investment Estimate

Technology Capacity (GW) CAPEX (M€/MW) GT (G€) 

Wind Power 28 1.3 36.4

Nuclear Power 9 7 63

DC backup gen. 8 0.8 6.4

Solar Power 6 0.7 4.2

Battery Storage 4 0.5 2

Hydropower 3 4 12

Long Duration Storage 3 1.5 4.5

CHP / Biomass 2.5 2.5 6.25

Total System Investment

~ 135 billion €

Important Considerations

This figure does not represent entirely new investment, because several components already exist in the Finnish energy system:

• Hydropower (~3 GW) is already largely built

• Existing nuclear capacity (~4.4 GW) is already in operation

• Part of the CHP capacity already exists

• Data center backup generation would be installed anyway

When these existing assets are considered, the additional new investment required could realistically be around:

70–100 billion € over the next 25 years

This corresponds to roughly:

3–4 billion € per year

which is consistent with the current pace of energy investments in Finland.

Strategic Insight

If approximately 8 GW of data center backup generation is integrated into the electricity market as flexible capacity, Finland could avoid building 10–15 billion € worth of dedicated peak power plants.

At the same time, this would create a large strategic reserve capacity for the power system, improving resilience and security of supply.

This concept reflects the emerging Finnish Industrial Energy Architecture, where energy production, storage, industrial consumption, and digital infrastructure operate as an integrated system.

Initiatives such as FinHighTech, together with engineering frameworks developed by KissPlan, aim to support the development of these coordinated energy solutions.