• Iberdrola issues the EU’s first green hybrid bond under the European Green Bond Standard, attracting €8 billion in orders.
• Coupon set at 3.75%, the lowest for a hybrid bond since 2022, reflecting strong investor confidence.
• 87% of investors aligned with UN PRI principles, reinforcing sustainable capital market momentum.

Iberdrola Secures Record Demand for Green Hybrid Issue

Madrid-based Iberdrola has issued €1 billion in green hybrid bonds, becoming the first company to align this class of instrument with the European Union Green Bond Standard (EUGBS). The issuance, eight times oversubscribed with over €8 billion in demand, drew participation from more than 400 institutional investors globally, solidifying Iberdrola’s position as a preferred issuer in sustainable capital markets.

The coupon was fixed at 3.75%, the most competitive rate among hybrid bonds issued this year and the lowest since March 2022. The strong pricing outcome reflects both favorable market conditions and investor confidence in Iberdrola’s credit strength and ESG commitments. The bonds are perpetual but include a repurchase option beginning in August 2031.

EU Green Bond Compliance Sets a Market Precedent

The transaction represents the first hybrid bond to comply with the EU’s newly adopted Green Bond Standard, which formalizes environmental disclosure and alignment with the bloc’s taxonomy for sustainable economic activities. Iberdrola’s adherence to both the EUGBS and the International Capital Market Association’s Green Bond Principles reinforces its strategy of embedding sustainability across all financing instruments.

The company stated that the issuance aligns with its broader green finance framework, ensuring that proceeds are dedicated to projects advancing renewable generation, grid modernization, and electrification initiatives across its European markets.

Strong Global Participation Highlights Investor Appetite

Investor demand reached exceptional levels, led by participants from the United Kingdom (31%), France (19%), and Germany (16%). Additional allocations came from Asia (5%), North America (3.5%), and the Nordic region (2.5%). Investment funds accounted for 86% of total participation, while 87% of investors identified as sustainable or PRI-aligned.

Nine international banks — including Barclays, Deutsche Bank, Mizuho, Crédit Agricole CIB, MUFG, ING, Intesa Sanpaolo, Wells Fargo, and Caixabank — acted as joint bookrunners, ensuring broad distribution across global markets.

The company capitalized on a favorable issuance window following its latest results presentation, taking advantage of reduced borrowing costs ahead of upcoming central bank meetings in Europe and the United States.

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Financial Strategy and Credit Strength

Proceeds from the bond will refinance an existing hybrid instrument maturing early next year, keeping Iberdrola’s hybrid debt volume stable at €8.25 billion, in line with commitments made during its recent Capital Markets Day in London.

Hybrid bonds are typically treated as 50% equity by major rating agencies, providing a balance-sheet benefit by supporting credit metrics without diluting shareholders. Iberdrola’s previous hybrid issuance in November 2024 carried a 4.247% coupon, meaning the new bond lowers financing costs significantly despite ongoing macroeconomic volatility.

The transaction’s success highlights investor confidence in Iberdrola’s financial resilience and energy transition strategy. The company remains one of Europe’s largest green bond issuers, having raised more than €50 billion through sustainable finance instruments since 2014.

Broader ESG and Market Implications

The issuance reinforces the growing role of green hybrids in Europe’s sustainable finance ecosystem. By integrating the EU’s stricter standards, Iberdrola sets a precedent for other corporate issuers navigating an evolving regulatory environment that increasingly links financing access to verifiable climate performance.

As the European Commission moves to scale the use of the Green Bond Standard across capital markets, Iberdrola’s successful placement demonstrates institutional investors’ readiness to channel capital toward instruments that meet robust environmental reporting and taxonomy-aligned criteria.

For global ESG and climate finance leaders, the deal underscores a clear message: credibility in sustainable debt markets will hinge not only on volume, but on transparency and regulatory alignment.

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