EU Renewable Energy Support Schemes
EU countries use renewable-energy support schemes and auctions to encourage investment, increase clean-energy output and support climate goals.
Key figures
2030 renewable target
At least 42.5%
The revised Renewable Energy Directive sets a binding EU-wide target for renewable energy to account for at least 42.5% of the energy mix by 2030.
2030 ambition
45%
Alongside the binding 42.5% target, the EU aims to reach a 45% renewable-energy share by 2030.
2024 renewable share
25.2%
European Commission figures report that renewable energy accounted for 25.2% of the EU energy mix in 2024.
Auction guidance
13 May 2024
The European Commission adopted Recommendation (EU) 2024/1344 on renewable-energy auction design.
At a glance
- EU countries use national support schemes to encourage investment in renewable energy such as wind and solar power.
- In May 2024, the European Commission issued guidance on designing renewable-energy auctions to make support more competitive, transparent and effective.
- The revised Renewable Energy Directive sets a binding EU target for renewables to reach at least 42.5% of energy consumption by 2030, with an ambition of 45%.
- Producer support can increase renewable-energy output where private markets would otherwise provide less than the socially efficient quantity.
- The effectiveness of support depends on auction design, subsidy size, grid capacity, technological costs and whether projects are actually completed.
Background
Renewable energy technologies such as wind and solar power have become increasingly competitive, but governments may still support investment where the private market would otherwise provide less renewable capacity than policymakers consider socially desirable.
One economic justification is a positive externality of production. This occurs when producing a good creates benefits for third parties that are not fully received by the producer. Renewable-energy investment can generate wider benefits such as lower greenhouse-gas emissions relative to fossil-fuel generation, cleaner air, technological learning and greater energy security.
In the standard IB model, these external benefits mean that the marginal social cost (MSC) of production can be lower than the marginal private cost (MPC) faced by firms. The market therefore produces less than the socially efficient quantity because firms do not receive payment for all of the benefits created for society.
There is an important qualification. Some environmental benefits of renewable energy can also be described as avoiding the negative externalities of fossil-fuel production, rather than as a separate positive externality. Both approaches explain why an unregulated energy market may produce too much fossil-fuel energy and too little renewable energy from society's perspective.
The revised Renewable Energy Directive, which entered into force in November 2023, increased the EU's binding 2030 renewable-energy target to at least 42.5%, with an ambition to reach 45%. National support schemes remain one tool for encouraging the investment needed to move towards that target.
What happened
EU countries operate a range of renewable-energy support schemes rather than one single EU-wide subsidy. These can include market premiums, contracts for difference, investment support and other mechanisms intended to reduce investment risk or improve the expected return from renewable-energy projects.
Article 4 of the Renewable Energy Directive states that support for renewable electricity should be market-based and market-responsive. It also requires EU countries to grant support in an open, transparent, competitive, non-discriminatory and cost-effective manner. Small-scale installations and demonstration projects can be exempted from some tendering requirements.
For large renewable-energy projects, support is commonly allocated through competitive tenders, also called auctions. Firms submit bids specifying the support they require to develop projects. Governments can then select projects according to the auction rules rather than simply offering the same subsidy to every producer.
On 13 May 2024, the European Commission adopted Recommendation (EU) 2024/1344 on renewable-energy auction design. The accompanying guidance encouraged governments to use clear, transparent and non-discriminatory criteria and to design auctions in ways that improve the likelihood that winning projects are actually completed.
The economic purpose of these support schemes is not only to increase renewable output. By reducing revenue uncertainty and investment risk, well-designed support can lower financing costs and encourage firms to build projects that might otherwise not be commercially viable.
Timeline
20 November 2023
The revised Renewable Energy Directive entered into force, increasing the EU's binding 2030 renewable-energy target to at least 42.5%.
13 May 2024
The European Commission adopted Recommendation (EU) 2024/1344 and guidance on the design of renewable-energy auctions.
21 May 2025
The deadline arrived for EU countries to transpose key provisions of the revised Renewable Energy Directive into national law.
Using this in the exam
Use this case when explaining or evaluating subsidies, positive externalities of production or government intervention to correct market failure.
For a positive-externality question, explain that renewable-energy production can create benefits for third parties that producers do not fully capture, such as lower pollution or technological spillovers. On a positive externality of production diagram, show MPC above MSC. The free-market quantity Qm is below the socially efficient quantity Qs, creating a welfare loss from underproduction.
Then introduce government support. EU countries use mechanisms such as premiums, contracts for difference and investment support to encourage renewable-energy projects. In the standard subsidy diagram, a producer subsidy lowers firms' effective production costs and shifts the supply curve to the right. The market price falls, producer output rises and consumption increases.
If the subsidy is equal to the marginal external benefit at the socially efficient quantity, it can theoretically move output from Qm towards Qs and reduce welfare loss.
However, do not imply that every EU renewable-energy scheme is a simple per-unit subsidy. Large projects are often supported through competitive auctions in which firms bid for support. The economic effect may be to reduce costs or investment risk rather than simply paying the same amount for every unit produced.
For evaluation, discuss whether governments know the correct size of the external benefit. If the subsidy is too small, renewable energy remains underproduced. If it is too large, the government may encourage excessive investment or transfer unnecessary income to producers.
You can also evaluate the use of auctions. Competition between developers can reduce the amount of public support required, but poorly designed auctions may produce bids that are too low for projects to remain financially viable. Winning a tender therefore does not automatically mean that new renewable capacity will actually be built.
Syllabus topics
Questions this example can answer
- Using a real-world example, explain how a subsidy can correct a positive externality of production.
- Using a real-world example, explain why the free market may underproduce renewable energy.
- Evaluate the use of subsidies to increase the production of renewable energy.
- Discuss the effectiveness of government intervention in correcting positive externalities of production.
- Evaluate the view that competitive subsidy schemes are the most effective way to increase renewable-energy production.
Evaluation
Arguments in favour
Support can increase renewable-energy production
Financial support raises the expected return from renewable-energy projects or reduces their effective costs. More projects may therefore become profitable, increasing investment and moving output closer to the socially efficient quantity.
Support can help internalize external benefits
Renewable-energy producers do not receive direct payment for all benefits created for society, such as lower emissions or technological spillovers. Government support can compensate producers for part of this external benefit and reduce underproduction.
Competitive auctions can reduce subsidy costs
When developers compete for limited support, firms have an incentive to bid for the smallest payment they require. This can reduce the fiscal cost of achieving a given amount of renewable capacity compared with an administratively fixed subsidy.
Revenue certainty can reduce financing costs
Long-term support mechanisms can make future project revenues more predictable. Lower risk can reduce the return demanded by investors and the cost of financing capital-intensive wind and solar projects.
Arguments against
Governments may set the wrong level of support
The marginal external benefit of renewable energy is difficult to measure precisely. If support is too high, taxpayers or electricity consumers may fund projects that would have been built without assistance or encourage production beyond the efficient quantity.
Subsidies have an opportunity cost
Public money used to support renewable-energy projects cannot simultaneously be spent on other priorities such as healthcare, education or grid infrastructure. The policy is only efficient if its social benefits exceed the benefits of alternative uses of those resources.
Poorly designed auctions may delay projects
Developers may submit unrealistically low bids in order to win support and later find that projects are not commercially viable. If projects are delayed or cancelled, an apparently low-cost auction may fail to deliver the intended renewable capacity.
Additional generation may be limited by the electricity grid
Subsidizing generation alone does not guarantee that new electricity can be transmitted to consumers. Grid congestion, storage shortages and slow permitting can limit the benefits of additional renewable capacity even when investment support is available.
Context and assumptions
Renewable technologies have become more competitive
The European Commission notes that falling investment costs mean energy markets can deliver much additional renewable capacity without public financial support. The case for subsidies is therefore stronger for projects or technologies where important barriers or external benefits remain.
Positive externalities and avoided negative externalities are related but different
Cleaner air or lower climate damage can be described as external benefits of renewable production, but they can also be analysed as reductions in the negative externalities caused by fossil-fuel generation. Students should explain which model they are using rather than combining the two.
Different support mechanisms have different effects
A fixed producer subsidy, a market premium, an investment grant and a contract for difference do not create identical incentives. The effectiveness of the policy therefore depends on the specific design of the support scheme.
The efficient subsidy changes as technology costs fall
If solar panels, turbines or financing become cheaper, renewable projects may need less government support to be commercially viable. A subsidy that was justified several years earlier may become unnecessarily generous if it is not adjusted.
Sustainability is a central policy objective
The EU's renewable-energy targets are intended to support lower greenhouse-gas emissions and reduced dependence on fossil fuels. Evaluation therefore involves both conventional economic efficiency and the IB key concept of sustainability.
Key terms
- Positive Externality of Production
- A benefit received by third parties as a result of producing a good or service, causing marginal social cost to be lower than marginal private cost.Taught in Unit 2.8: Market Failure: Externalities and Common Pool Resources
- Subsidy
- Financial assistance provided by a government to producers or consumers in order to influence production, consumption or income.Taught in Unit 2.7: Role of Government in Microeconomics
- Market Failure
- A situation in which the free market fails to allocate resources efficiently, resulting in a loss of economic welfare.Taught in Unit 2.8: Market Failure: Externalities and Common Pool Resources
- Marginal Private Cost
- The additional cost faced by a producer from producing one more unit of a good or service.
- Welfare Loss
- The loss of total economic welfare that occurs when market output differs from the socially efficient quantity.
- Competitive Tender
- A process in which firms submit competing bids for the right to receive government support or deliver a project under specified conditions.
References
Sources
- 01
Support schemes for renewable energy
European Commission
- 02
Renewable energy targets
European Commission
- 03
Commission Recommendation (EU) 2024/1344 on auction design for renewable energy
EUR-Lex
- 04
Directive (EU) 2018/2001 on the promotion of the use of energy from renewable sources, consolidated version
EUR-Lex
- 05
Post-2030 Renewable energy framework – Public consultation
European Commission
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