WatchPost Solutions

Energy Use Index (EUI)

Across a multi-building campus, every facilities manager wants to understand each building's operational efficiency and energy performance on its own terms. WatchPost's EUI solution makes that possible in real time.

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Building Energy Use

What EUI Measures

The U.S. Department of Energy's ENERGY STAR program defines Energy Use Index as a unit of measurement that describes a building's energy use. It's expressed in BTUs per square foot per year, and it lets you compare energy consumption across similar building types, or track a single building's performance from one year to the next.

EUI = BTU ÷ Building Square Footage ÷ Year
Calculated in real time by WatchPost, using asset-specific data templates and algorithms in the AVEVA PI System.
Long-Term Efficiency

A Number You Can Actually Compare

Outside weather and occupancy data can be layered in too, producing a normalized view of energy consumption that accounts for factors outside your control. That gives you a long-term efficiency trend you can benchmark and share across the organization, not just a snapshot of one billing cycle.

A single EUI number, calculated the same way for every building, means facilities teams, executives, and sustainability offices are finally comparing apples to apples.

See What's Possible with WatchPost

Schedule a demo and DSA's WatchPost team will walk through what real-time EUI tracking could look like across your campus.

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