Fit for 55 · Glossary

Fit for 55 is the European Union's legislative package for implementing a binding climate target: by 2030, the EU's net greenhouse gas emissions are to be at least 55 percent below the 1990 level. At the same time, the package is meant to put the EU on the path to climate neutrality by 2050. The European Commission presented the package on 14 July 2021. Fit for 55 is not a single law. It consists of many regulations, directives and reforms covering power generation, industry, transport, buildings, fuels, land use, product standards and infrastructure.

The number 55 stands for the percentage emission reduction. It covers all greenhouse gases, not just CO₂ from power plants. This also includes methane, nitrous oxide and fluorinated gases, which are converted into CO₂ equivalents. "Net" means that sinks such as forests and soils are counted, that is, emissions that are removed from the atmosphere again. The legal basis is the European Climate Law. It lays down climate neutrality by 2050 and the interim target for 2030. Since March 2026, it also contains a binding target for 2040: minus 90 percent net compared with 1990. However, this 2040 target is no longer part of Fit for 55. Separate follow-up proposals are to be made for it.

Not a single law, but an implementation architecture

The main building blocks of the package are:

Reform of the EU Emissions Trading System (EU ETS): the covered sectors are to cut their emissions by 62 percent compared with 2005 by 2030. The allowance cap falls by 4.3 percent per year from 2024 to 2027 and by 4.4 percent per year from 2028 to 2030. Since 2024, maritime transport has been gradually included.
A new, separate emissions trading system (ETS2) for fuels used in buildings, road transport and other sectors, together with the Social Climate Fund.
Revision of the Effort Sharing Regulation: in the sectors outside the classic ETS, such as road transport, buildings, agriculture, waste and small industry, an EU-wide reduction target of 40 percent compared with 2005 applies. It is split into binding national targets.
Stricter rules for land use and forestry, higher targets for renewable energy and higher requirements for energy efficiency, including in buildings.
CO₂ fleet standards for new cars and light commercial vehicles, rules on alternative fuels infrastructure, requirements for sustainable fuels in aviation and maritime transport, and a package on the market for hydrogen and decarbonised gases, which the Council adopted in May 2024.
The Carbon Border Adjustment Mechanism CBAM for certain emission-intensive imports.

The instruments work in different ways. Emissions trading sets a price. Renewables and efficiency requirements set quantity or target values. Fleet standards and infrastructure obligations change product rules and build-out obligations. Reporting obligations are added on top. Fit for 55 thus combines market mechanisms, regulations and national implementation obligations. The effect arises from the interplay, not from a single central steering instrument. It can be compared with a toolbox: the price sets the framework, while standards and targets apply where a price signal alone would work too slowly or too imprecisely.

The difference between regulations and directives is important. Regulations apply directly in all Member States. These include the Effort Sharing Regulation and the CO₂ fleet standards. Directives such as the Emissions Trading Directive, the Renewable Energy Directive or the Energy Efficiency Directive first have to be transposed into national law and leave room for discretion in doing so. Fit for 55 is therefore designed at European level but, in many areas, implemented nationally. Grid expansion, permitting law, building standards, support programmes and levies remain partly a matter for the Member States.

Status and changes since 2025

Fit for 55 is not a completed, unchangeable set of rules. Several parts have meanwhile been adjusted or are to be adjusted. As of November 2026, the following applies:

ETS2: the new emissions trading system for buildings and road transport will only start in 2028 instead of 2027 as originally planned. This was laid down by the amendment to the Climate Law, which the Council finally adopted on 5 March 2026.
CBAM: the definitive phase has been running since 1 January 2026. Importers must surrender CBAM certificates for the emissions embedded in the goods. In return, free allocation in the ETS for the CBAM sectors is phased out gradually from 2026 to 2034. Anyone importing no more than 50 tonnes of such goods per year is exempt from the main obligations. This threshold does not apply to electricity and hydrogen.
Cars and light commercial vehicles: the law in force is still the Fit for 55 version of the fleet regulation. It requires a 100 percent CO₂ reduction for new vehicles from 2035. In December 2025, the Commission proposed lowering this target to 90 percent. The remaining emissions would then be offset through credits, for example for low-emission steel from the EU or for renewable fuels. Parliament and Council are still negotiating this proposal.

Distinction from the Green Deal, REPowerEU and national climate policy

Fit for 55 is often equated with the European Green Deal. That is imprecise. The Green Deal is the EU's overarching political framework for climate neutrality, resource protection, industrial policy and transformation. Fit for 55 is the concrete legislative part that translates the 2030 target into rules.

REPowerEU is also something different. The programme emerged after Russia's attack on Ukraine as a response to the energy crisis. It is intended to reduce dependence on fossil energy imports more quickly, above all on Russian gas. The two approaches overlap in renewable energy, energy saving and electrification. The starting point is different, however: Fit for 55 follows the climate target, REPowerEU follows security of supply. National climate protection laws, support programmes and building rules are likewise not the same as Fit for 55. They can serve implementation, go beyond EU minimum requirements or make use of national discretion.

Significance for the power system

The EU ETS covers about 40 percent of EU emissions, including power and heat generation. The reformed emissions trading system therefore makes fossil power generation more expensive, because coal and gas plants must surrender allowances for every tonne of CO₂. A higher CO₂ price strengthens the market position of low-emission generation. But it also affects wholesale prices, namely whenever fossil power plants set the price in particular hours.

Higher renewables targets increase the pressure to expand wind and solar plants. For the power sector, this means not only more installed capacity. The more weather-dependent generation there is, the more grids, storage, controllable consumers, reserve capacities and suitable market rules are needed. Terms such as flexibility, residual load and security of supply describe precisely this task: operating a power system with strongly fluctuating feed-in reliably.

Fit for 55 also affects demand. Heat pumps, electric vehicles, electrolysers and electric process heat can replace fossil fuels. As a result, electricity consumption can rise while total final energy consumption falls. The reason: electric applications usually use energy more efficiently. An example: depending on conditions, a heat pump obtains several kilowatt-hours of heat from one kilowatt-hour of electricity, whereas a gas boiler obtains at most about one from one kilowatt-hour of gas. Rising electricity demand is therefore not automatically a problem. For grid planning, however, what matters is not only the annual volume but also when the demand occurs and how high the simultaneous load is.

Prices, obligations and investment signals

ETS2 covers fuels that were previously outside the classic emissions trading system, such as heating oil, natural gas, petrol and diesel. As a rule, the obligated parties are not households but the companies that place the fuels on the market. They can pass the costs on to end customers through prices. Despite the postponement of the start, the allowances are to be auctioned from 2027, so that Member States already have revenue beforehand to provide relief. The Social Climate Fund, which is fed from ETS2 revenue, is intended to cushion social hardship. It does not replace national distribution and social policy.

CBAM concerns imports of iron and steel, cement, aluminium, fertilisers, electricity and hydrogen. The mechanism is intended to prevent European climate rules from merely causing production and emissions to move to countries with lower CO₂ costs. Until 2034, CBAM applies only to the share of emissions for which European producers no longer receive free allowances. With each year, free allocation becomes smaller and the CBAM obligation larger. It is thus less about blanket relief for energy-intensive production and more about transparent rules for competitiveness, climate protection and imports.

Municipalities and infrastructure operators face obligations, for example in expanding charging infrastructure, in public buildings, in energy planning and in efficiency measures. Companies face reporting obligations, investment requirements and new cost risks. Private households feel the rules mainly indirectly: through energy prices, the range of vehicles available, building standards and support programmes.

Common misunderstandings

Fit for 55 is not a pure package of bans. It does contain regulations, for example for vehicle fleets or infrastructure. But large parts work through prices, target quotas, market rules and national implementation obligations. Equally wrong is the picture of a pure subsidy programme. The package mainly changes the cost calculation for fossil energy and sets minimum targets. Funding such as the Social Climate Fund, the Modernisation Fund and the Innovation Fund accompanies implementation but is not the core.

Fit for 55 is also not a pure electricity market package. Nevertheless, the power sector becomes a central field of implementation, because many emission reductions run through electrification. When transport, heat and industry partly switch to electricity, their requirements shift into the power system. Grid expansion, load management, storage and firm capacity are thereby more closely linked to climate and industrial policy.

Finally, EU climate policy does not lead to the same results in all Member States. Electricity mix, building stock, industrial share, income, grids and permitting practice differ greatly. The Effort Sharing Regulation takes this into account: the national reduction targets differ in level, and states can bank and borrow emission allocations to a limited extent. Common targets thus do not mean identical paths. This gives rise to conflicts over burden sharing, competitiveness and financing.

What the term makes visible

Fit for 55 shows that the EU increasingly organises climate policy as a set of rules for investment decisions. Emission targets are translated into allowances, limit values, build-out targets, efficiency obligations, infrastructure standards and reporting systems. This translation is technically and institutionally demanding, because it intervenes in existing energy markets, grids, industrial processes and national competences. The adjustments to ETS2 and the fleet standards also show that individual rules remain politically contested and are readjusted, while the 2030 target itself remains in place.

Whether individual measures work efficiently, in a socially balanced way or fast enough is not something the term alone tells us. For that, the concrete rules must be examined: who bears which costs? Which investments are triggered? Which authority is responsible? Where is grid capacity lacking? Which emissions are actually avoided and which are merely shifted? Used precisely, Fit for 55 denotes the European implementation architecture for the 2030 climate target. For the power system, the term is important because it links CO₂ prices, build-out targets, electrification, infrastructure obligations and national implementation.

Sources

Fit for 55 — Rat der Europäischen Union; unbekannt. Abschnitte „What is the Fit for 55 package?“, Lastenteilung, Erneuerbaren-Richtlinie, Wasserstoff- und Gasmarktpaket
Fit for 55: reform of the EU emissions trading system — Rat der Europäischen Union; 2023-04-25 (letzte Überprüfung 31.01.2025). Textfassung der Infografik, Abschnitte „Which sectors are currently covered?“ und „What will change with the reform?“
2040 climate target: Council gives final green light — Rat der Europäischen Union; 2026-03-05. Pressemitteilung, Haupttext und „Next steps“
Cars and vans — Europäische Kommission, GD Klimapolitik; unbekannt. Einleitung und Abschnitt „2025 Automotive Package – Proposed revision“
Carbon Border Adjustment Mechanism (CBAM) Questions and Answers — Europäische Kommission; unbekannt. Abschnitt 1.2 und Erläuterungen zur Anpassung an die kostenlose Zuteilung

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Edited by eCMS on 11.11.2026 19:47