The EU ETS: Europe's Primary Carbon Pricing Instrument
The European Union Emissions Trading System (EU ETS), established in 2005, is the world's largest and longest-running carbon market. It operates on a cap-and-trade principle: a total cap is set on greenhouse gas emissions from covered sectors (power generation, heavy industry, aviation within the EEA), and companies must surrender allowances (EUAs) equal to their verified emissions.
Prior to the Fit for 55 reforms, the ETS operated under Phase 4 targets (2021–2030), which already included a linear reduction factor of 2.2% per year. However, the upgrade of the EU's 2030 climate target from -40% to at least -55% economy-wide (relative to 1990 levels), enshrined in the European Climate Law, necessitated a fundamental review of the ETS architecture.
Key Elements of the Fit for 55 ETS Reform
The revised EU ETS Directive, agreed upon in December 2022 and formally adopted in 2023, introduced several structural changes:
- Enhanced reduction target: A new overall emissions reduction target of 62% by 2030 compared to 2005 levels for ETS-covered sectors (up from the previous 43%)
- Accelerated linear reduction factor: Increased to 4.3% per year from 2024 to 2027, and 4.4% from 2028 to 2030
- Phase-out of free allowances: Gradual elimination for industrial sectors subject to the Carbon Border Adjustment Mechanism (CBAM), aligned with CBAM phase-in
- ETS2 — A new system for buildings and road transport: A separate emissions trading system for fuel combustion in buildings and road transport, to be operational from 2027
- Expansion to maritime transport: Shipping emissions included in the EU ETS from 2024, with full phase-in by 2026
The Innovation Fund and Social Climate Fund
Revenues from ETS allowances are directed in part to the Innovation Fund, which supports the development and deployment of low-carbon technologies, and to the Social Climate Fund — a new mechanism to address energy poverty for vulnerable households affected by ETS2 carbon costs.
Carbon Price Trajectory and Market Implications
The tightening of the EU ETS cap has contributed to higher and more volatile EUA prices. From lows below EUR 5/tonne in 2018, EUA prices reached EUR 90+ in early 2023 before moderating. The structural supply reduction built into the reform is expected to maintain upward price pressure over the medium term.
A robust, predictable carbon price signal is essential for driving investment in clean technologies and nature-based solutions that can deliver verified emissions reductions at scale.
Interconnection with Voluntary Carbon Markets
As compliance markets such as the EU ETS tighten, the premium placed on high-quality, verifiable carbon removals in voluntary markets increases correspondingly. Projects that can demonstrate regulatory readiness — such as compliance with the EU Carbon Removal Certification Framework (CRCF) — are positioned to benefit from price convergence between compliance and voluntary markets over time.