EU Emissions Trading System: Purpose, Effects, and Alternatives

Introduction to the EU ETS and Its Purpose

The EU Emissions Trading System (EU ETS) is a cap-and-trade mechanism designed to incentivize cost-effective reductions in greenhouse gas (GHG) emissions from carbon-intensive industrial sectors and electricity generators. Evidence shows that the administrative burden — the cost of monitoring, verifying, and validating emissions, as well as costs to regulatory bodies — placed by the EU ETS on smaller emitters has been disproportionately large.

Article 27 of the EU ETS Directive provides an opt-out from the EU ETS in Phase III (2013–2020) to reduce administrative burdens on small emitters and hospitals. It requires that opted-out installations follow procedures that achieve an equivalent share of emissions reductions as if the installation had remained within the EU ETS. The aim of providing an opt-out is to incentivize GHG emission reductions while reducing regulatory cost burdens on UK small emitters and hospitals. The goal is to accomplish this while meeting EU legal requirements, without significantly affecting the emissions reductions achieved by operators within the EU ETS, and ensuring that UK businesses are not placed at a competitive disadvantage relative to companies within the EU. Within the constraints of the EU ETS Directive, the 243 eligible operators who chose to opt out of the ETS in Phase III are required to reduce emissions through a substitute measure (EU ETS, 2008).

The activities covered by the EU ETS include energy activities (such as combustion installations, coke ovens, and mineral oil refineries); the production and processing of ferrous metals; mineral industries (including cement, lime, glass, and ceramics); and the manufacture of pulp and paper (EU ETS, 2007).

The general principle is that an activity is considered part of a Schedule 1 activity if it is an integral element of that Schedule 1 process. In determining whether an activity is an integral element of a Schedule 1 activity, the following factors are relevant (EU ETS, 2007):

Covered Activities and Scope of the EU ETS

• Whether the Schedule 1 process would be practically feasible without that activity — for example, where the manufacture of paper (process 4.2 in Schedule 1 of the ETS Regulations) would not be feasible without an on-site combined heat and power (CHP) plant supplying steam.

• Whether the activity's main objective is the Schedule 1 process — for example, the main objective of the CHP plant is to produce steam for use in paper manufacturing. Regulators are expected to apply a practical approach to defining "main objective," which will generally be understood as the highest proportion of its outputs (EU ETS, 2007).

Nevertheless, this approach has led to inconsistencies in scope across the EU and increased costs in some areas. There has been broad consensus across the European Union that the best way to resolve both problems is to include every emission source on-site. This eliminates the possibility of installations within and among Member States being treated differently and captures additional CO₂ emissions, frequently reducing the costs of monitoring and reporting in the process. Due to the limited time available, the approach described above continues to apply to most installations in the UK for Phase II. However, further development provides an opportunity to improve harmonization in certain sectors (EU ETS, 2007).

Environmental and Administrative Effects of the EU ETS

The EU ETS is designed to help installations across the EU achieve emissions reductions at the lowest possible cost. Beyond compliance costs, operators participating in the ETS are subject to costs associated with monitoring, reporting, and validation (MRV), as well as fees charged by competent authorities in Member States to recover the cost of administering the scheme. The obligation of operators and competent regulators to ensure adequate MRV is essential to maintaining the credibility of emissions reductions and safeguarding the economic and environmental integrity of the scheme (Impact Assessment, 2012).

It has been widely acknowledged in Europe, however, that the administrative costs faced by small emitters under the EU ETS are disproportionately high per tonne of CO₂ compared to the costs for larger installations. This was demonstrated in the UK following a review of administrative costs to UK operators during Phase I (2005–2007) and Phase II (2008–2012) of the ETS. That review found that small emitters, comprising two percent of emissions, bore approximately twenty percent of the total administrative burden — across more than sixty percent of all installations covered by the review. The largest eight percent of emitters were responsible for sixty percent of emissions and bore forty-five percent of the administrative burden. Per tonne of CO₂ released, the estimated administrative costs for UK small emitters exceeded £1, while costs for UK large emitters were estimated at approximately £0.04. Nearly all UK hospital installations were also small emitters and therefore faced the same excessive administrative cost burden per tonne of CO₂ (Impact Assessment, 2012).

To illustrate how scope is determined in practice, consider a food and drink manufacturer — a sector not explicitly listed in Schedule 1. If that producer operates two boilers of 4 MW and 5 MW, along with two generators of 5 MW and 8 MW on the same site, all units are treated as the same Schedule 1 process (combustion) operated by the same operator on the same site. Their capacities are therefore aggregated (even if there is no technical connection between the units). The boilers and generators are effectively treated as a single stationary technical unit, and because the total capacity exceeds 20 MW (22 MW in this example), the installation is included within the EU ETS as a combustion installation (EU ETS, 2007).

Conclusion

The EU ETS remains a significant but imperfect instrument for reducing greenhouse gas emissions across Europe. Structural issues such as permit oversupply and disproportionate administrative burdens on small emitters continue to undermine the system's credibility and effectiveness. Addressing these challenges — through supply management mechanisms, opt-out provisions, and improved harmonization of scope — is essential if the EU ETS is to fulfill its stated purpose of delivering cost-effective, environmentally meaningful emissions reductions.