TS EN 15900

TS EN 15900 is the standard that brings together the key terms used in energy efficiency services and the minimum rules applicable to those services. It clarifies how services aimed at improving energy performance are defined and supports a common technical language between service providers, clients and project stakeholders.

The technical framework of an energy efficiency service

Energy efficiency services typically cover planning, implementation and monitoring activities designed to reduce energy use, improve efficiency and, in many cases, deliver measurable improvements. In general technical context, this field often includes energy assessment, selection of improvement measures, implementation support and evaluation of results. The standard helps ensure that the concepts behind this service type are understood consistently and that technically different approaches are not conflated.

Why terminology and minimum requirements matter

This standard supports a consistent interpretation of the language used in energy efficiency projects. It provides a shared reference point for the service scope, the roles of the parties involved and the minimum expectations that the service should meet. In broader technical practice, such a framework makes it easier to compare offers, define service content more clearly and manage energy-efficiency activities in a more structured way.

• Provides a common set of terms for energy efficiency services.
• Defines minimum requirements for those services.
• Supports a shared technical understanding between providers and users.
• Helps classify energy-saving activities more clearly.