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Begin New Search Topic Decarbonization Author Ben McWilliams

1. Reconciling the European Union’s clean industrialisation goals with those of the Global South

Author:
Ben McWilliams, Simone Tagliapietra, and Jeromin Zettelmeyer
Publication Date:
07-2025
Content Type:
Policy Brief
Institution:
Bruegel
Abstract:
Clean industrialisation is a political and economic priority for the European Union. For it to work, affordable clean energy is needed. However, producing this energy in Europe is constrained by limited renewable energy endowments (sunshine and wind) and land availability, while the transportation costs for imported clean energy (in the form of electricity or hydrogen) are much higher than for fossil fuels. An alternative way to fuel Europe’s clean industrial sector would to import energy-intensive primary tradeable products such as ammonia, methanol and reduced iron. We estimate that more than ten percent of total future EU clean energy demand will be met by such products. Public policy in Europe should aim to facilitate trade in energy-intensive intermediate inputs, which are cheaper to import than energy directly. Imports of these inputs could boost the competitiveness of downstream stages in the energy-intensive value chain (such as steel production). By lowering overall energy demand and thus electricity prices, such imports would also raise EU competitiveness more broadly. In many cases, they would replace imports of less energy-intensive commodities such as iron ore, therefore not adding to Europe’s overall import dependency. The direct economic impact in terms of jobs and value added that would be offshored is not substantial. The international benefit of such a strategy would be that it would embed third countries – especially emerging and developing economies – into clean industrial value chains. Stable European demand can help such countries develop export-driven, clean industrial strategies. Politically, this could be an important incentive that could offset the EU’s carbon border adjustment mechanism. Governments should therefore not use taxpayer money to fight the relocation of energy-intensive and tradeable primary products, beyond some minimum threshold that is desirable for economic security and innovation reasons. Meanwhile, ongoing negotiations with third countries to establish Clean Trade and Investment Partnerships should put trade in energy-intensive clean products at the core of new international clean supply chains.
Topic:
Industrial Policy, European Union, Global South, Industrialization, Decarbonization, Energy, and Emerging Economies
Political Geography:
Europe

2. How to finance the European Union’s building decarbonisation plan

Author:
Ugnė Keliauskaitė, Ben McWilliams, Giovanni Sgaravatti, and Simone Tagliapietra
Publication Date:
07-2024
Content Type:
Policy Brief
Institution:
Bruegel
Abstract:
By 2030, the European Union must reduce emissions from the heating and cooling of buildings – responsible for 13 percent of EU emissions – by the equivalent of the annual emissions of Slovakia. This requires a near tripling of the current decarbonisation rate. But the time gap between high upfront costs and long-term payback from renovation works deter consumers from investing in energy renovation. To address these challenges, the EU has introduced a policy toolkit that includes strengthened price signals against fossil-fuel heating through emissions trading, and setting energy-consumption reduction targets in the Energy Performance Building Directive (EPBD). EU countries must take the EPBD targets seriously and implement policies to accelerate building retrofits and the adoption of clean heating. If they don’t, there is a risk that EU climate targets will not be met, and the costs for households of subjecting domestic heating to emissions trading could be almost twice the higher costs seen during the 2022 energy crisis. We estimate that achieving the EPBD’s energy savings targets requires filling an investment gap of about €150 billion per year up to 2030. This is a daunting but feasible goal. By leveraging energy savings from electrification and retrofitting to reduce renovation costs, the investment gap could be more than halved. Additionally, effective use of EU funds and emissions trading revenues will further shrink the gap. A mix of grants, preferential loans and obligations is needed, as no single policy will speed up energy renovations. Prioritising grants for the worst-performing buildings, often occupied by vulnerable consumers, will yield climate benefits and benefits in terms of improved air quality, health, productivity, energy security and lower future government outlays to alleviate energy poverty. Traditional public subsidies have not successfully engaged the banking sector, which now must help to foster private-public financing mechanisms. Countries also need to adjust relative energy prices for heating through taxation and subsidies, and expand one-stop-shops to streamline the renovation process for consumers.
Topic:
European Union, Carbon Emissions, Decarbonization, and Energy
Political Geography:
Europe

3. Decarbonisation of the energy system

Author:
Georg Zachmann, Alexander Roth, Ben McWilliams, Franziska Holz, Robin Sogalla, Frank Meissner, and Claudia Kemfert
Publication Date:
01-2022
Content Type:
Policy Brief
Institution:
Bruegel
Abstract:
Three quarters of the European Union’s greenhouse gas emissions stem from burning coal, oil and natural gas to produce energy services, including heating for buildings, transportation and operation of machinery. The transition to climate neutrality means these services must be provided without associated emissions. It is not possible today to determine tomorrow’s optimal clean energy system, largely because the cost, limitations and capability developments of competing technologies cannot be predicted. Energy systems with widely diverging shares of ‘green fuels’, in the form of electricity, hydrogen and synthetic hydrocarbons, remain conceivable. We find the overall cost of these systems to be of the same order of magnitude, but they involve larger investments at different stages of value chains. A large share of synthetic hydrocarbons would require more investment outside the EU, but less in domestic infrastructure and demand-side appliances, while electrification requires large investment in domestic infrastructure and appliances. Current projections show an overall cost advantage for direct electrification, but projections will evolve and critical players may push hard for alternative fuels. Policy will thus play a major role in shaping this balance. Political decisions should, first, push out carbon-emitting technology, primarily through carbon pricing. The more credible and predictable this strategy is over the coming decades, the smoother will be both divestment from brown technologies and investment in green technologies. Second, policy needs to help ensure that enough climate-neutral alternatives are available in time. Clear public support should be given to three system decisions about which we are sufficiently confident: the massive roll-out of renewable electricity generation; the electrification of significant shares of final energy consumption; and rapid phase-out of coal from electricity generation. For energy services where no dominant system has yet emerged, policy should forcefully explore different solutions by supporting technological and regulatory experimentation. Given the size and urgency of the transition, the current knowledge infrastructure in Europe is insufficient. Data on the current and projected state of the energy system remains inconsistent, either published in different places or not at all. This impedes the societal discussion. The transition to climate neutrality in Europe and elsewhere will be unnecessarily expensive without a knowledge infrastructure that allows society to learn which technologies, systems, and polices work best under which circumstances.
Topic:
Climate Change, European Union, Carbon Emissions, Decarbonization, and Energy
Political Geography:
Europe

4. Commercialisation contracts: European support for low-carbon technology deployment

Author:
Ben McWilliams and Georg Zachmann
Publication Date:
07-2021
Content Type:
Policy Brief
Institution:
Bruegel
Abstract:
Many of the technologies that can help the European Union become a net-zero emissions economy by 2050 have been shown to work but are not yet commercially competitive with incumbent fossil-fuel technologies. There is not enough private investment to drive the deployment of new low-carbon alternatives. This is primarily because carbon prices are neither high enough nor stable. There are a number of benefits from the deployment of low-carbon technologies that private firms do not factor in. These include the benefits of decreasing industry-wide costs over time, and the global climate benefits from the development of low-carbon technologies within the EU that can subsequently be exported. The result is an investment level below the socially optimal value in the EU. Commercialisation contracts could be implemented as a temporary measure to remove the risk associated with uncertain carbon prices for ambitious low-carbon projects. The aim of the contracts would be to increase private investment to the socially optimal level. Contracts would be allocated through auctions in which fixed prices for abated emissions over a fixed duration would be agreed on a project-by-project basis. On an annual basis, public subsidies amounting to the difference between the agreed carbon price and the actual EU carbon price would be provided to investors, depending on the total carbon emissions abated. As long as EU carbon prices are low, investors would receive larger subsidies to ensure their competitiveness. Contracts would be auctioned at EU level. This would generate increased competition compared to national auctions, leading to more efficient outcomes and preventing fragmentation of the single market. From about €3 billion to €6 billion would be provided to the main industrial emitting sectors annually, with the amount reducing as the EU carbon price rises and low-carbon technologies become competitive without subsidy.
Topic:
Climate Change, Energy Policy, Science and Technology, Investment, Trade, Carbon Emissions, and Decarbonization
Political Geography:
Europe

5. Navigating through hydrogen

Author:
Ben McWilliams and Georg Zachmann
Publication Date:
04-2021
Content Type:
Policy Brief
Institution:
Bruegel
Abstract:
Hydrogen is seen as a means to decarbonise sectors with greenhouse gas emissions that are hard to reduce, as a medium for energy storage, and as a fallback in case halted fossil-fuel imports lead to energy shortages. Hydrogen is likely to play at least some role in the European Union’s achievement by 2050 of a net-zero greenhouse gas emissions target. However, production of hydrogen in the EU is currently emissions intensive. Hydrogen supply could be decarbonised if produced via electrolysis based on electricity from renewable sources, or produced from natural gas with carbon, capture, and storage. The theoretical production potential of low-carbon hydrogen is virtually unlimited and production volumes will thus depend only on demand and supply cost. Estimates of final hydrogen demand in 2050 range from levels similar to today’s in a low-demand scenario, to ten times today’s level in a high-demand scenario. Hydrogen is used as either a chemical feedstock or an energy source. A base level of 2050 demand can be derived from looking at sectors that already consume hydrogen and others that are likely to adopt hydrogen. The use of hydrogen in many sectors has been demonstrated. Whether use will increase depends on the complex interplay between competing energy supplies, public policy, technological and systems innovation, and consumer preferences. Policymakers must address the need to displace carbon-intensive hydrogen with low-carbon hydrogen, and incentivise the uptake of hydrogen as a means to decarbonise sectors with hard-to-reduce emissions. Certain key principles can be followed without regret: driving down supply costs of low-carbon hydrogen production; accelerating initial deployment with public support to test the economic viability and enable learning; and continued strengthening of climate policies such as the EU emissions trading system to stimulate the growth of hydrogen-based solutions in the areas for which hydrogen is most suitable.
Topic:
Climate Change, Energy Policy, European Union, Carbon Emissions, Decarbonization, and Hydrogen
Political Geography:
Europe and Global Focus