TS EN 15900

TS EN 15900 is a standard for energy efficiency services that defines the relevant terminology and sets minimum requirements for such services. In practical terms, an energy efficiency service is typically a structured set of activities aimed at improving how energy is used in a facility, process, or organisation; this standard focuses on establishing a common language and a basic framework for that service.

Why terminology and requirements are combined

In energy efficiency projects, the way a service is defined often shapes the contract structure, performance expectations, and the responsibilities of the parties involved. Clarifying terms helps different organisations use the same concepts in the same way. The minimum requirements help frame an energy efficiency service as more than a technical suggestion, giving it a recognised service structure. In general technical context, such services may include baseline assessment, identification of improvement opportunities, implementation support, and follow-up monitoring.

The standard’s general technical context

This standard covers definitions and minimum requirements for an energy efficiency service, but it does not by itself imply a project-specific delivery method or a guaranteed savings level beyond what is explicitly covered. In practice, energy efficiency services may be used in industrial plants, commercial buildings, infrastructure operations, and service organisations to reduce energy use, improve efficiency, and strengthen management processes.

• Shared terminology helps make communication between service providers and clients more precise.
• Minimum requirements support a basic structure and expectation set for the service.
• The standard provides a reference framework for understanding energy efficiency services; it is not, by itself, a savings guarantee.