When the European Union decided to strengthen its climate toolkit, it didn’t just tweak existing policies, it introduced something entirely new. Enter ETS2, the second Emissions Trading System, designed to tackle a part of the economy long considered difficult to decarbonize: everyday energy use in buildings and road transport.

 

 

 

What is ETS2?

 

 

The original EU Emissions Trading System (often called ETS1) targets heavy industry, aviation, and power generation. It works on a simple principle: companies must pay for the carbon they emit, creating a financial incentive to reduce emissions.

 

ETS2 builds on this idea, but shifts the focus downstream. Instead of regulating large industrial emitters, it covers fuel suppliers that provide:

• Petrol and diesel for transport
• Heating fuels like natural gas, oil, and coal
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By pricing these fuels based on their carbon content, ETS2 indirectly influences millions of households and businesses.

 

 

 

Why introduce a second system?

 

 

Despite progress in industry, emissions from transport and buildings have been stubbornly slow to fall. These sectors:

• Account for a significant share of EU emissions
• Are highly fragmented (millions of cars, homes, boilers)
• Depend heavily on fossil fuels

ETS2 is the EU’s answer: a market-based mechanism that nudges behavior at scale—without regulating each user individually.

 

 

 

How it works (in practice)

 

 

Under ETS2:

• Fuel suppliers must buy allowances for the emissions their fuels will generate
• These costs are expected to be passed on to consumers (fuel prices, heating bills)
• A cap limits total emissions, tightening over time

The system is set to start in 2027, although it may be delayed to 2028 if energy prices are unusually high.

 

 

 

The social dimension: not just a carbon price

 

 

Unlike ETS1, ETS2 directly affects citizens. That’s why the EU paired it with the Social Climate Fund, designed to:

• Support vulnerable households
• Finance energy efficiency upgrades
• Accelerate access to clean mobility

This is crucial. Without social safeguards, carbon pricing at this level could deepen inequality.

 

 

 

Opportunities and risks

 

 

Opportunities:

• Faster electrification of transport (EVs become more attractive)
• Increased demand for building renovations and heat pumps
• Clear price signal for low-carbon innovation

Risks:

• Public resistance due to rising fuel costs
• Uneven impacts across Member States
• Political pressure to weaken or delay implementation

 

 

 

Why ETS2 matters

 

 

ETS2 signals a shift in European climate policy—from targeting producers to influencing consumption patterns. It recognizes a hard truth: decarbonization cannot happen without changing how we heat our homes and move around.

For businesses, it means new cost structures and opportunities.

For governments, a balancing act between climate ambition and social fairness.

For citizens, a more visible price on carbon than ever before.

In short, ETS2 brings climate policy closer to daily life, and that’s exactly why it could be transformative.