Digital services consume resources: energy, materials, bandwidth. The General Framework for Eco-design of Digital Services (RGESN) is a French government initiative that provides guidelines for reducing that footprint. Paired with the NumEcoDiag assessment tool, it helps evaluate and improve the environmental impact of digital projects.
What is the RGESN?
The RGESN is a framework published by the French government. It compiles best practices for designing, developing, and deploying digital services while limiting their environmental impact.
It covers the entire lifecycle of a digital service, from design to decommissioning. The idea is to factor in environmental concerns from day one rather than treating them as an afterthought. In practice, this means fewer unnecessary requests, less data stored for no reason, and fewer resources consumed on both the server and client side.
Goals of the RGESN for sustainable digital technology
The RGESN targets three things.
Reduce the carbon footprint and energy consumption of digital services. That's the core of it.
Push digital professionals to rethink their methods. This applies to developers, designers, project managers, and decision-makers alike.
Encourage the creation of eco-designed solutions that meet user needs without wasting resources. Eco-design is not cosmetic optimization — it's a shift in how you build a digital product.
Main focus areas of the RGESN
Reducing environmental impact
The first focus is the design phase. Before writing a line of code, ask: is this feature really necessary? Can it use fewer resources? Can we extend the product's lifespan instead of replacing it?
Optimizing infrastructures
The second area covers infrastructure, especially data centers used to host digital solutions. Cooling, power supply, server sizing — there are real gains to be found. The RGESN also stresses rational data use. Less data stored, processed, and transmitted means less energy consumed.
Raising ecological awareness
The third area is awareness. The RGESN pushes organizations to integrate environmental concerns into their digital governance. Eco-design can't rely on one developer alone — it requires a collective effort.
NumEcoDiag: the assessment tool
NumEcoDiag is the evaluation tool that goes with the RGESN. It measures the ecological footprint of a digital service: energy consumption, greenhouse gas emissions, resource usage.
The tool uses RGESN criteria to produce a quantified analysis. You identify weak points, you know where to act. It's a diagnostic, not a certification: passing it isn't the goal — taking action based on the results is.
Why use the RGESN and NumEcoDiag in your projects?
The RGESN provides the framework, NumEcoDiag provides the measurement. Together, they let you build eco-design into your digital development projects in a structured way.
Beyond the environmental angle, it's also a compliance question. Regulations are moving in this direction, and companies that prepare early will have an advantage. It's also a commercial argument: more and more clients and procurement officers include environmental criteria in their tenders.
