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For a data centre, a chemicals plant or a battery factory, power is the bill that decides the business case. These are the prices medium-sized industrial users pay, taxes that cannot be recovered included.
Eurostat, consumption band 500–1,999 MWh a year, second half of the latest year. The median country pays 0.160 €/kWh.
A 3.4× gap. A firm in Ireland pays 0.255 €/kWh, one in Finland 0.075 €/kWh. For a site using 1 GWh a year that is a difference of about €180,400.
Large users negotiate their own contracts and many countries refund part of the levies to energy-intensive industry, so a real quote can sit well below these figures. Outside Europe comparable official prices are not yet collected; those countries count as the median in the climate score.
Source: Eurostat nrg_pc_205 (business electricity prices). Nestlyzer scores each measure 0–100 between the 5th and 95th percentile of the countries it covers. How the method works.