EnPI and energy baseline (EnB)

An EnPI (energy performance indicator) measures energy performance, and an energy baseline (EnB) is the starting point improvements are measured against. Both are central to ISO 50001.

EnPI stands for energy performance indicator. EnPIs are the metrics an organisation uses to measure its energy performance. An energy baseline (EnB) is the starting point that improvements are compared with. Together they make it possible to document whether energy performance actually improves over time.

Why do EnPIs and baselines matter?

Under ISO 50001, an organisation must set energy objectives and follow up on them. That requires a fixed starting point and indicators that show progress. Without a baseline you cannot show how much has been saved, and without EnPIs it is hard to see whether a measure has worked.

Examples of EnPIs

Baseload, meaning the underlying consumption that remains even when activity is low
Base temperatures and heating and cooling degree days, so consumption can be compared across weather conditions (see degree day correction)
Energy efficiency KPIs, for example consumption relative to floor area or activity

How Enity EMS works with EnPIs and baselines

In Enity EMS you can set and follow up on energy objectives and action plans, and track the journey from your baselines to your targets. The energy models calculate EnPIs such as baseload, base temperatures and heating and cooling degree days. Coop, for example, uses custom Excel reports with EnPI and EnB as part of its ISO 50001-certified energy management. Read the Coop case here.

Related terms

See it in action

Want to see how you can track your EnPIs and baselines in Enity EMS? Book a demo and we will show you how it works with your own data.