1. Introduction

“Green industrial subsidies” in Spain are public financial measures designed to encourage businesses to reduce greenhouse-gas emissions, improve energy efficiency, electrify industrial processes, introduce renewable energy, develop clean technologies, and make other investments connected with the green transition.

Although these measures are mainly associated with environmental, industrial, competition, and EU State-aid law, they also have an important banking-law dimension. Banks may finance the portion of a green industrial project that is not covered by a subsidy, provide bridge financing while a grant is pending, issue guarantees, or participate in public/private financing structures.

Spain cannot design these subsidies solely under domestic law. Because Spain is an EU Member State, the measures must comply with Articles 107–109 of the Treaty on the Functioning of the European Union (TFEU) and the European Commission's State-aid framework.

As of September 2026, an especially important framework is the Clean Industrial Deal State Aid Framework (CISAF). The Commission adopted CISAF on 25 June 2025; it replaced the transition provisions of the Temporary Crisis and Transition Framework and is scheduled to operate until 31 December 2030. It covers clean energy, industrial decarbonisation, support for certain electricity costs, clean-technology manufacturing, and measures designed to de-risk private investment.

2. Spanish Legal Framework

At national level, an important general statute is Law 38/2003, the General Subsidies Law (Ley General de Subvenciones). It establishes general rules governing the granting, management, justification, control and, where appropriate, recovery of public subsidies.

For green industrial policy, however, national subsidy law operates together with EU State-aid law.

Spain therefore has to consider three principal layers:

Spanish public/subsidy law → EU State-aid and competition law → EU green-transition and recovery-fund requirements.

A subsidy that complies with Spanish administrative procedures can nevertheless create problems if it constitutes incompatible State aid under Article 107 TFEU.

3. Current Spanish Green Industrial Subsidy Policy

One of Spain's most important programmes is the PERTE for Industrial Decarbonisation (PERTE de Descarbonización Industrial).

Its purpose is to promote decarbonisation of Spanish manufacturing processes. Supported activities can include industrial electrification, renewable energy, hydrogen, integrated energy management, resource-efficiency measures and carbon-management technologies.

The 2026 rules illustrate the scale of the programme. Spain initially announced approximately €329.74 million for the 2026 comprehensive industrial-decarbonisation call. The allocation was subsequently increased, and in April 2026 the maximum amount was raised to approximately €518.24 million in grants.

Order ITU/1521/2025 establishes the regulatory basis for relevant manufacturing-decarbonisation assistance. Among other things, it provides for a maximum subsidy of €200 million per tractor project and establishes different maximum aid intensities depending on the type of investment. For example, the Order provides limits of up to 30% for certain direct-emission reductions and energy-efficiency projects and up to 45% for certain renewable-energy installations for industrial self-consumption.

This shows that Spanish green industrial policy is not merely environmental regulation. It is becoming a substantial component of industrial finance.

4. When Does a Green Subsidy Become “State Aid”?

Article 107(1) TFEU is central.

A green industrial measure will normally constitute State aid where four basic conditions are present:

1. there is an economic advantage;
2. the advantage comes from the State or through State resources;
3. it is selective because it favours certain undertakings or sectors; and
4. it is capable of distorting competition and affecting trade between EU Member States.

Consequently, a measure does not escape State-aid rules simply because its objective is environmental protection.

For example, suppose Spain gives a steel manufacturer €50 million to replace a fossil-fuel production system with a low-carbon production line. The environmental objective may justify authorising the assistance, but the payment can still constitute State aid because the company receives a selective economic advantage financed through public resources.

The legal question then becomes whether that aid is compatible with the internal market.

5. Article 107(3) TFEU and Green Industrial Policy

Article 107(3) creates important possibilities for compatible aid.

For green industrial subsidies, Article 107(3)(c) is particularly significant. It permits aid facilitating the development of certain economic activities or areas where the measure does not adversely affect trading conditions to an extent contrary to the common interest.

The Commission therefore normally considers matters such as:

necessity, proportionality, incentive effect, eligible costs, aid intensity, competition effects and environmental benefits.

A subsidy should normally address a genuine financing or investment problem rather than simply increase the profits of a project that would have proceeded in substantially the same way without government assistance.

CISAF now provides a more specific framework through which Member States can support industrial decarbonisation and clean-technology investment.

6. Relationship with Banking Law

The banking connection appears at several stages.

Consider a €100 million industrial decarbonisation project.

The financing structure could theoretically contain:

• €25 million government subsidy;
• €50 million commercial bank loan;
• €15 million company equity; and
• €10 million public or private guarantee.

The subsidy reduces the amount of commercial financing required and can improve the project's financial viability.

Banks nevertheless remain responsible for ordinary credit-risk analysis and applicable prudential requirements. A public subsidy should not automatically be treated as eliminating the borrower's commercial, construction, operational or regulatory risks.

7. Subsidised Loans and Public Guarantees

Government support does not have to take the form of a direct cash grant.

Potential aid instruments include:

direct grants, subsidised interest rates, public guarantees, tax advantages, repayable advances and certain public loans or equity investments.

Suppose a commercial loan would ordinarily carry an 8% interest rate, while a State-backed financing programme allows an undertaking to obtain financing at 2%.

The economic value of the favourable financing terms may constitute an advantage for State-aid purposes.

The same issue arises with guarantees. If the Spanish State guarantees a company's borrowing on terms that a private market guarantor would not accept, the guarantee may itself contain State aid.

Therefore, banking lawyers must examine the economic substance, not merely the formal title of the financing instrument.

8. Market Economy Operator Principle

Not every public financing transaction is State aid.

Where the State provides financing on conditions that a rational private investor, lender or guarantor operating under comparable circumstances would have accepted, there may be no economic advantage for Article 107(1) purposes.

This is generally associated with the market economy operator principle.

For banks participating alongside the State, this distinction is important.

Commercial co-financing on equivalent terms can sometimes provide evidence that public financing is market-oriented. But the comparison must be genuine: differences in security, priority, maturity, guarantees and risk exposure can mean that apparently identical investments are economically different.

9. Banks as Intermediaries

A bank participating in a subsidised financing programme is not necessarily the ultimate beneficiary of the State aid.

For example, the government might provide funds through a financial intermediary, requiring the bank to pass the economic advantage to qualifying industrial borrowers.

The legal analysis must then determine:

Who actually receives the advantage?

It might be:

• the industrial undertaking;
• the financial intermediary;
• both; or
• neither, if every participant acts on market terms.

This distinction can become extremely important if the European Commission later orders recovery of unlawful State aid.

10. Cumulation of Aid

Industrial projects frequently receive funding from several sources.

A company might obtain an EU-funded grant, a Spanish national subsidy, regional assistance, tax incentives and publicly supported financing.

These measures cannot simply be added together without considering applicable cumulation rules and maximum aid intensities.

For a bank conducting due diligence on a heavily subsidised green project, it can therefore be important to determine the project's entire public-financing package rather than considering only the bank's individual facility.

11. Recovery Risk

One of the most important banking consequences arises where aid has been granted unlawfully.

EU State-aid law can require the Member State to recover incompatible aid from the beneficiary.

That can materially alter a borrower's financial position.

Imagine an industrial company receives a €40 million subsidy and borrows another €60 million from banks. Several years later, the subsidy is held to constitute unlawful and incompatible aid and must be recovered.

The company could suddenly face a substantial repayment obligation.

Banks financing subsidised projects therefore have an interest in examining:

State-aid approval, exemption conditions, subsidy documentation, recovery clauses, change-of-law provisions and representations concerning compliance with EU State-aid rules.

12. Important Case Laws

There is not a large body of Spanish banking cases dealing specifically with the modern concept of “green industrial subsidies.” The relevant principles instead come from Spanish State-aid disputes and broader EU environmental and subsidy jurisprudence.

Case 1 — Spain v Commission, Case C-351/98

This is an important Spanish State-aid case.

The Court of Justice dealt with Spanish aid and examined issues including effects on competition and intra-EU trade, the de minimis principle, sectoral restrictions and environmental-aid guidelines.

Principle

A Member State cannot avoid EU State-aid scrutiny merely because the amount granted to individual businesses is relatively limited or because a programme pursues broader economic objectives.

Importance for green industrial banking

A Spanish green-financing programme must be examined according to its actual economic characteristics and beneficiaries. Environmental objectives do not automatically remove the measure from Article 107 TFEU.

13. Case 2 — Commission v Spain and Others, Case C-128/16 P

This major case concerned the Spanish Tax Lease System applicable to financing arrangements used for purchasing ships.

The Court examined the identification of beneficiaries, selectivity, distortion of competition and effects on trade under Article 107(1) TFEU.

Principle

A complicated financing or tax structure can still constitute State aid. The authorities must examine the economic advantage and the actual beneficiaries rather than relying solely upon the formal structure of transactions.

Importance

This is highly relevant to green industrial financing because modern projects can involve:

banks + leasing structures + tax incentives + government subsidies + special-purpose vehicles + industrial beneficiaries.

A complex structure does not prevent State-aid rules from applying.

14. Case 3 — Spain and Others v Commission, Joined Cases C-649/20 P, C-658/20 P and C-662/20 P

The Spanish Tax Lease litigation subsequently returned to the Court of Justice.

In its judgment of 2 February 2023, the Court considered selectivity, legitimate expectations, legal certainty and recovery of State aid. Banks including CaixaBank, Banco Santander, BBVA, Banco Sabadell and others appeared among the parties involved in the litigation.

Principle

State-aid consequences can extend deeply into sophisticated financing arrangements, while questions about the identity of the beneficiary and amount to be recovered require careful economic and legal analysis.

Green-finance significance

Banks cannot assume that participation in a government-supported industrial financing structure makes its State-aid status legally secure.

Subsidy compliance should therefore form part of transaction due diligence.

15. Case 4 — Naturgy Energy Group v Commission, Case T-328/18

This Spanish case is particularly relevant to environmental and energy subsidies.

It concerned an environmental incentive adopted by Spain for coal-fired power plants and the Commission's decision to initiate the formal State-aid investigation procedure. Issues included the duty to give reasons, manifest error and the selective character of the measure.

Principle

Describing government assistance as an environmental incentive does not prevent the Commission from examining whether it gives selected businesses an economic advantage.

Importance

This principle is directly relevant to industrial decarbonisation programmes.

The legal inquiry is not simply:

“Is the programme green?”

It is also whether the financial advantage satisfies EU State-aid requirements.

16. Case 5 — Georgsmarienhütte and Others v Germany, Case C-135/16

Although this was a German rather than Spanish measure, the judgment applies throughout the EU, including Spain.

The case concerned a support scheme for renewable electricity and energy-intensive industrial users. The Court addressed the validity of the Commission's State-aid decision and procedural questions concerning challenges to that decision.

Principle

Energy-intensive industries receiving special treatment under renewable-energy financing systems can fall within EU State-aid control.

Importance for Spain

Spain's industrial transition involves energy-intensive industries such as steel, chemicals, ceramics, cement and other manufacturing activities.

Preferential energy treatment for those businesses therefore has to be structured consistently with State-aid requirements.

CISAF itself now contains provisions dealing with electricity-cost support for certain energy-intensive users.

17. Case 6 — Ryanair v Commission, Case C-441/21 P

This case directly concerned a Spanish State-aid scheme, although it was a COVID-era recapitalisation scheme rather than a green industrial programme.

Spain established a recapitalisation fund supporting strategic undertakings. The Court of Justice considered Article 107(3)(b) TFEU together with proportionality, non-discrimination, freedom of establishment and freedom to provide services.

Principle

The EU Treaties allow Member States significant room to design State-aid measures when the conditions for a Treaty exemption are satisfied, but the structure and eligibility conditions remain subject to EU legal scrutiny.

Green-industrial significance

The same basic institutional structure operates for green industrial aid:

Spain designs the intervention → EU State-aid rules determine whether it constitutes aid → an exemption/framework determines whether it can be authorised → courts can review the resulting Commission decision.

18. How the Current CISAF Framework Changes the Picture

CISAF is especially significant for Spain's industrial transition.

It permits Member States, subject to its conditions, to support:

• clean-energy deployment;
• industrial decarbonisation;
• electricity costs for qualifying energy-intensive industries;
• clean-technology manufacturing; and
• private investment through risk-reduction mechanisms. 

This last category is especially relevant to banking.

Public guarantees, risk-sharing arrangements and other de-risking structures can make commercial banks more willing to finance expensive industrial-transition projects.

The policy objective is therefore not necessarily to replace banks with public funding. Public support can instead be structured to mobilise private capital.

19. Spanish PERTE and Banks

The PERTE model illustrates how this can operate.

Suppose a Spanish manufacturer wishes to convert a conventional factory into a highly electrified low-carbon plant.

The project could contain:

Public subsidy: supports eligible decarbonisation expenditure.

Commercial bank financing: finances remaining capital expenditure.

Corporate equity: demonstrates the sponsor's commitment.

EU recovery funding: may ultimately finance part of the public programme.

Guarantees: can reduce certain financing risks.

Spain's current PERTE rules specifically support industrial decarbonisation projects, while the 2026 framework links the programme with the REPowerEU component of Spain's Recovery Plan.

20. Competition Concerns

Green subsidies create an unavoidable competition-law tension.

Without government support, some expensive decarbonisation investments may not occur quickly enough.

But excessive subsidies can give selected firms advantages over competitors.

EU State-aid law therefore attempts to reconcile:

environmental transition + industrial competitiveness + preservation of competition.

This explains requirements concerning proportionality, maximum aid intensity and eligible expenditure.

The objective is generally not to reimburse every euro of an industrial investment, but to provide sufficient support to facilitate the desired investment without unnecessary overcompensation.

21. Banking Due Diligence

A Spanish bank financing a subsidised industrial project should therefore understand several distinct legal risks.

The bank will ordinarily want clarity concerning the legal basis of the subsidy, State-aid compatibility, amount and timing of public funding, conditions precedent to payment, possibility of recovery, interaction with other subsidies and the consequences if the project fails to achieve the required environmental targets.

This matters particularly when projected subsidy receipts form part of the borrower's repayment model.

If €50 million of expected public assistance disappears, the project's debt-service capacity may change substantially.

22. Interaction with Sustainable Finance Regulation

Green industrial subsidies should also be distinguished from sustainable-finance regulation.

State-aid rules primarily answer:

Can the government provide this economic advantage?

Banking and sustainable-finance rules address different questions, including:

How should financial institutions finance, classify, disclose and manage risks connected with environmentally sustainable economic activities?

Consequently, a project can comply with State-aid requirements while still creating separate banking, disclosure, prudential or environmental-law questions.

23. Practical Example

Consider Iberian Green Steel SA, a hypothetical Spanish manufacturer.

It proposes a €300 million project replacing carbon-intensive equipment with an electrified and hydrogen-compatible production process.

Suppose:

€90 million comes from a Spanish industrial-decarbonisation subsidy;

€140 million comes from a banking syndicate;

€70 million comes from shareholder equity.

Several legal questions arise.

First, does the €90 million constitute State aid under Article 107(1)?

Almost certainly it requires a State-aid analysis because State resources provide a selective economic advantage to an undertaking.

Second, can it be compatible?

Potentially yes, particularly where the conditions of CISAF or another applicable State-aid basis are satisfied.

Third, can the company automatically receive additional regional subsidies?

Not necessarily. Cumulation and maximum aid-intensity rules must be checked.

Fourth, can banks simply assume the €90 million will permanently remain available?

No. The financing documentation should consider eligibility conditions, disbursement requirements and potential recovery risk.

Fifth, what happens if the company fails to implement the promised decarbonisation investment?

Depending on the applicable grant conditions, Spain may suspend payments or seek repayment, which can subsequently affect the company's ability to service bank debt.

24. Overall Legal Position

Spanish green industrial subsidies operate at the intersection of banking law, EU State-aid law, Spanish subsidy law, competition law, environmental policy and industrial policy.

The basic legal structure can be expressed as:

Green industrial objective
→ Spanish subsidy programme
→ Article 107(1) State-aid assessment
→ applicable exemption/Commission compatibility framework
→ subsidy agreement
→ bank and private co-financing
→ investment and environmental conditions
→ monitoring and compliance
→ possible repayment/recovery if conditions are breached.

Spain's current policy demonstrates the increasing importance of this relationship. The 2026 PERTE industrial-decarbonisation call ultimately reached approximately €518.24 million, while the underlying rules establish project-specific aid intensities and limits.

The six cases discussed above demonstrate complementary parts of the legal framework: Spain v Commission (C-351/98) illustrates general State-aid control; Commission v Spain (C-128/16 P) and Spain and Others v Commission (Joined Cases C-649/20 P etc.) show how State-aid rules penetrate complex financial structures; Naturgy (T-328/18) concerns a Spanish environmental incentive; Georgsmarienhütte (C-135/16) addresses renewable-energy support and energy-intensive industry; and Ryanair v Commission (C-441/21 P) demonstrates judicial scrutiny of a major Spanish State-support programme.

For banking purposes, the central lesson is that a green subsidy is not separate from the financing structure. Its legality, amount, conditions and potential recovery can directly affect credit risk, project bankability, collateral value and the borrower's ability to repay.