TS EN 15900

TS EN 15900 is a standard that defines the key terms used in energy efficiency services and sets minimum requirements for those services. Energy efficiency services typically combine organisational, technical, managerial, and sometimes financial elements aimed at improving a user’s energy performance; this standard helps establish a common language and clarifies what falls within the scope of the service.

What an energy efficiency service means

In general technical context, an energy efficiency service is more than a single technical measure. It is usually associated with assessing energy use, identifying improvement opportunities, planning measures, and monitoring outcomes. Standardised terminology makes it easier for service providers and customers to define expectations in the same way and supports comparability across organisations.

What this standard covers

• Basic terminology for energy efficiency services
• Minimum requirements for such services
• A common vocabulary for understanding service boundaries and scope
• The relationship between energy management, performance improvement, and service organisation

For users, this standard provides a reliable reference for how energy efficiency projects are named and what service elements can be expected at a minimum. It is especially useful where the same concepts may otherwise be used differently across public, industrial, and building-related applications.