Europe’s Carbon Border Adjustment Mechanism (CBAM)
CBAM is designed to stop European firms from evading carbon compliance costs by sourcing commodities from regions with more relaxed environmental regulations. Formally launched in 2023 as part of the European Green Deal, it will force importers to buy credits to cover the emission of steel, aluminium, cement, electricity and chemicals they buy from outside the EU.
From 2026, CBAM will start imposing levies on steel production, a sector responsible for 7% of global carbon dioxide emissions, with it being fully phased in by 2034. While many countries have been vocally against it, they are also taking action to minimise its impacts and benefitting from it. China now has 18 electric arc furnaces under construction, two will be powered entirely by solar panels. South Korea is building one with Meranti Steel, headquartered in Singapore investing $60 million in a green steel plant in Indonesia. Established steel makers, including Indian steelmaker JSW are also ramping up their green steel capabilities. JSW plans to produce all its exports to the EU in furnaces powered by renewable and using recycled scrap as feedstock. Supporters have argued that CBAM will help encourage the decarbonisation of industries abroad, but critics state it could create a two-tiered market allowing companies to produce green steel for Europe and dirty steel for everyone else.
Reducing Emissions from Non-Road Mobile Machinery (NRMM)
The global construction industry is responsible for 39% of total carbon emissions. In 2020, 2.5 million tonnes of diesel were consumed by the UK construction industry, emitting 6 million tonnes of CO2, greenhouse gases and other air pollutants. The London Atmospheric Emissions Inventory 2019 found that NRMM exhaust emissions in construction is a significant contributor to London’s air pollution. In April 2023, 1,365 NRMMs were actively operating in London of which 1,163 were compliant with the NRMM Low Emission Zone (LEZ).
The NRMM LEZ requires all engines with a power rating between 37 kW and 560 kW to meet an emission standard based on the engine emission ‘stage’. Stages describe the standards that need to be met depending on where the site is. The current standards are stage IV for construction machinery in the CAZ (Central activity zone) and OAs (Output Areas), and stage IIIB in the rest of London, this will get tighter over time.
A techno-economic feasibility study by environmental consultant Environmental Resources Management on behalf of The Department for Energy Security and Net Zero on decarbonisation options for NRMMs looked at three potential abatement options for the transition to lower emissions. It considered:
- Fuel-switching, away from fossil fuels to lower carbon energy sources, such as biodiesel, electricity, or hydrogen.
- Efficiency measures, through the improvement of machines, operations or processes that reduce the amount of energy and fuel needed to produce the same output.
- Process change, processes currently using NRMM are changed so that the machines are no longer required to complete a particular task.
This is important as from the 1st of January 2025, standards will be stage IV across London, and from the 1st of January 2030, standards will be stage V across London, with only zero machinery being allowed in London from the 1st of January 2040.