energieinbreng

Energieinbreng is a Dutch term used in energy accounting and engineering to denote the total energy that enters a defined system boundary and is available to drive processes, heat, or electricity within that boundary. It includes energy supplied from outside the boundary, such as purchased electricity or fuels, as well as energy produced on-site that is subsequently used within the system.

In practice, energieinbreng is used in energy balances, efficiency calculations, and life cycle assessments to quantify the energy demand of a process or installation before accounting for losses and energy transformations. It serves as a starting point for evaluating energy performance and for comparing alternative designs or operating strategies.

Common contexts include industrial facilities, buildings, and infrastructure projects. In a factory, energieinbreng covers steam or hot water generated on-site for processing, electricity consumed by equipment, and fuels used for heating. In a building, it includes district heating, electricity for heating and cooling, and other utilities brought into the facility.

Relation to other concepts: energieinbreng is contrasted with energyafgifte or energieopbrengst (the energy output or energy produced by the system) and with energy losses. It is a foundational element in assessing overall energy efficiency and in reporting energy use to policy frameworks or sustainability audits.

Terminology notes: the term is commonly used in Dutch-language energy management and policy literature. In English, the concept is often described as energy input or energy demand of a system, depending on the context and boundary definitions.