Implementing the Fit-for-55 package would increase the cost of energy (and related equipment) relative to the baseline, with regressive effects in the absence of redistribution.
Pairing the output from the JRC-GEM-E3 model, which takes inputs on the transition of key sectors from PRIMES, with detailed microdata from the European Household Budget Survey (HBS) evidences these regressive effects. It also shows a progressive effect can be achieved by a lump sum transfer using (a fraction of) the additional revenue from the package’s expanded carbon pricing, especially when this is targeted to households at risk of poverty.