Savings verified from real meter readings. No marketing maths.

The published evidence

Real buildings.
Results in context.

Explore nine named case studies. Start with a building like yours, then read the period and comparison behind its reported result.

The Headland Hotel, one of nine published OH4 case studies

Compare the published results

Individual sites, different measurement periods. Each study explains the comparison and any limitations in the published figures.

A separate domestic example

Bring the right questions to the evidence

  1. What was measured?

    Identify the meters and loads included. Check whether cooking, domestic hot water or other uses have been separated.

  2. Over what period?

    A single month, a season and a full year answer different questions. Check the dates before comparing studies.

  3. What was adjusted?

    Separate raw readings from weather or occupancy calculations. Record other changes that could affect demand.

  4. What does it mean for your building?

    Use a free survey to assess suitability, then agree the method for a one-building pilot.

Review the measurement questions with your engineer

The next evidence should be your own

Tell us about your building, its heating or cooling system and the meter data available. Start with a free survey and a clearly scoped pilot.

Request a free survey