Decarbo'Solution® > Bilan GES > Les obligations vertes (Green Bonds) expliquées simplement

Green Bonds Explained Simply

Green bonds are playing an increasingly prominent role in the financial landscape.

In France, as in New York or Washington, they attract companies, states, and public institutions, as well as many other corporate groups . The goal is to finance projects that have a positive impact, particularly in the areas of energy, transportation, and sustainable development.

This type of investment helps support the energy transition while ensuring sound financial management. Green bonds generally adhere to strict ESG criteria, based on recognized international benchmarks—such as those established by the World Bank or the Caisse des Dépôts—which precisely define eligible projects and the data that must be collected to ensure transparent monitoring.

In Europe, organizations such as EDF, the SNCF Group, and privatecorporate groups regularly publish reports detailing how the funds they have raised are being used. These obligations make it possible to channel millions of euros into concrete projects, both in France and elsewhere.

But how do these green bonds work? Why are they so successful? And most importantly, do they have a real impact on emissions? Here’s a closer look.

 3 Contents

What is a Green Bond?

📗 A traditional bond… but a green one

A green bond is a financial instrument that functions like a traditional bond. A company, public institution, or government issues a bond to raise funds in the markets. In return, it commits to repaying investors with interest.

The difference is that the funds raised are used exclusively for eligible sustainable projects. These can range from the construction of solar farms to energy-efficient home renovations and low-carbon transportation systems.

👉 For example, the EDF Group raised 4.5 billion euros through green bonds between 2013 and 2020 to finance its renewable energy infrastructure. These bond issuances are often rated against an ESG index, thereby ensuring their compliance with sustainability criteria.

It is, therefore, a responsibleinvestment vehicle, guided by ESG criteria. This typeof bond helps support the energy transition while offering investors returns comparable to those of traditional bonds.

⚙️ How does it work?

Les émetteurs de green bonds doivent définir à l’avance quels types de projets seront financés :

- 🔋 renewable energy production,
- 📉 reduction in CO₂ emissions,
- 💧 sustainable water management,
- 💰 circular economy, etc.

Ensuite, ils doivent publier un cadre d’émission, souvent sous forme de PDF, précisant les critères d’éligibilité, la méthode de sélection, et les modalités de suivi. C’est ce qui assure la transparency. Ces critères peuvent également s’appuyer sur un indice reconnu et des données fiables pour garantir la qualité des projets financés. 👉 Exemple : en 2022, le Groupe SNCF a émis un green bond de 1,25 milliard d’euros pour financer des projets de transition énergétique, incluant le renouvellement de son matériel roulant et l’amélioration de l’efficacité énergétique de ses infrastructures dans le pays.

Screenshot taken on May 26, 2025, at 3:37:34 p.m.

Source: SNCF 2022 Green Securities Report

Finally, investors receive regular reports to verify that the invested funds are being used as intended. These documents serve as a benchmark in the markets for assessing the issuer’s credibility.

🏛️ Who issues these green bonds?

Green bonds are not limited to a small circle of insiders. They are now used by a wide range of stakeholders in France, Europe, and around the world.

👉 On the public side, we find the World Bank, the Caisse des Dépôts, and cities such as Paris, New York, and Washington.

👉 On the private sector side, companies such as EDF, Engie, and even Apple have entered this market.

👉 In 2023, more than $600 billion in green bonds were issued worldwide. Europe accounted for nearly 50% of that total, with France leading the way.

These investments show that green bonds are not just a passing trend. They are emerging as a concrete tool for sustainable development, supported by a wide range of stakeholders.

📑 The Regulatory Framework and Transparency: A Key Issue in Green Bond Management

Chaque émission de green bond repose sur un framework strict qui définit les critères des projets éligibles au financement. Ce cadre précise notamment les types de gaz à effet de serre concernés, les secteurs visés comme les énergies renouvelables, et les indicateurs à suivre. Le groupe émetteur doit assurer un reporting régulier pour fournir des données et des informations précises sur l’utilisation des fonds et l’impact environnemental. Ces éléments sont souvent compilés dans un rapport annuel, où figure aussi l’évolution des taux d’émission et les performances selon un indice reconnu. La date de publication de ces documents est clé pour garantir la transparence et la confiance des investisseurs, en particulier dans un marché où les exigences réglementaires et les attentes des acteurs évoluent rapidement.

How to ensure the long-term viability and growth of your business through a successful low-carbon strategy.

Download the Guide

Why do these obligations have such a significant impact?

🌍 A powerful driver of sustainable development

Green bonds help finance concrete projects with a measurable impact. They channel investment toward key sectors of the energy transition: renewable energy, clean mobility, energy efficiency, waste management, and more.

👉 Example: In 2021, our country issued more than 15 billion euros in green bonds, which were used, among other things, to financesolar energy projects in Corsica and energy-efficiency retrofits in public buildings across the country.

These bonds play a key role in driving the development of sustainable, large-scale infrastructure. They make it possible to channel millions of euros into solutions that reduce emissions and improve regional resilience.

📊 Measuring and Managing the Impact of Green Bonds

Ce qui distingue un green bond d’un simple produit marketing, c’est son cadre de transparence. Les émetteurs doivent publier des rapports d’allocation et d’impact, souvent disponibles en PDF, avec des indicateurs précis (tonnes de CO₂ évitées, MWh produits en renouvelable, efficacité énergétique, etc.). Ces documents sont devenus des références dans l’univers de la finance durable. Ils permettent aux investisseurs de suivre la gestion des fonds et de vérifier que les engagements sont bien tenus.

💸 More Responsible and Attractive Investments

Green bonds are attracting more and more institutional investors, banks, insurance companies, and asset managers. Why? Because they combine financial returns with environmental impact.

👉 Example: In 2022, Caisse des Dépôts included more than 10% green bonds in its bond portfolio.

ESG criteria have become essential filters in investment strategies. By choosing green bonds, investors align their investments with societal expectations and carbon neutrality goals.

This growing demand is driving the market upward. Green bonds are no longer niche products: they are becoming the norm, whether in France, New York, Paris, or Washington.

Green Bonds: What Does the Future Hold for France and Beyond?

🇫🇷 Strong momentum in France and Europe

Franceis one of the world leaders in the green bond market. It was the first country in the world to issue a sovereign green bond in 2017. Since then, the initiative has been widely adopted in Europe.

👉 In 2023, France issued a total of 35 billion euros in sovereign green bonds to finance projects in the areas ofenergy, biodiversity, and therenovation of public infrastructure.

Paris plays a central role in this trend as a financial center committed to sustainable finance. Entities such as EDF, the SNCF Group, and local governments are increasingly using green bonds to accelerate their transitions.

🌐 Global Challenges, International Coordination

The green transition does not stop at national borders. That is why green bonds are part of a framework of international cooperation. The World Bank regularly issues green bonds to finance eligible projects in developing countries.

👉 Example: In 2022, it funded asolar energy programin Burkina Faso and climate-resilient infrastructure in the Philippines.

In New York, the city raised more than $2 billion through green bonds to modernize its drinking water system. In Washington, green bonds are funding the electrification of public transportation.

This coordination among groups, cities, and institutions helps create a global momentum in support of sustainable management and low-carbon development.

📈 Are green bonds set to become mainstream?

Green bonds are no longer just one tool among many. They are becoming a standard feature of investment policies. More and more regulators are imposing frameworks to ensure the quality and transparency of these issuances.

👉 In Europe, the implementation of the European Green Bond Standard aims to harmonize the market and strengthen investor confidence, particularly by establishing a clear set of criteria that must be met.

The potential is immense: according to the Climate Bonds Initiative, the global green bond market could reach $1,000 billion in annual issuances by 2025. This milestone would mark a shift toward more responsible finance.

Les green bonds, ou obligations vertes, ne sont pas qu’un simple outil de financement. Ce sont des leviers puissants pour transformer notre manière d’investir, de produire, et de penser le développement durable. En France, à Paris, comme à New York ou Washington, ils permettent de mobiliser des millions d’euros pour des projets concrets portés par des entreprises publiques et privées : infrastructures vertes, production d’énergie propre, rénovation de logements, mobilité bas carbone, avec un accent particulier sur l’efficacité des solutions mises en œuvre. Des acteurs comme EDF, la SNCF, la Banque mondiale, ou encore la Caisse des Dépôts, ainsi que de nombreuses entreprises engagées, montrent la voie. Leur engagement est souvent documenté dans des rapports en PDF, devenus des références pour les investisseurs attachés à une gestion rigoureuse et à des critères ESG solides. Face à l’urgence climatique et aux attentes sociétales, les green bonds apportent une réponse crédible, mesurable, et surtout, réplicable à grande échelle. Leur succès montre qu’une autre finance est possible. Une finance qui ne se contente plus de compter… mais qui compte vraiment.