A system which uses artificial intelligence to determine the energy and cost efficiency of commercial buildings is being developed by the University of West of England (UWE Bristol), engineering firm TerOpta and Costain

Data collected from a network of small sensors will initially help experts paint an accurate picture of energy consumption in commercial buildings at a number of test sites with a view to setting up a service to offer energy efficiency advice to businesses.

i-REAP, which stands for IoT-enabled Real-time Energy Analytics Platform, is a two-year £1.5m collaborative R&D project funded by the Department for Business, Energy and Industrial Strategy.

The project is led by engineering firm TerOpta, which is developing Internet of Things (IoT) enabled sensors for i-REAP.

Costain is also one of the project partners and is providing five test sites across the UK in commercial buildings belonging to the firm or its subcontractors.

Feasibility study in commercial buildings

Researchers from UWE Bristol’s Big Data Lab will initially carry out a feasibility study in the buildings, assessing the heating layout, staff sitting arrangements, office structure, orientation of buildings and building façade, materials, as well as insulation.

Starting this month, they will then install up to 80 IoT sensors inside and four outside each of the buildings. The sensors installed inside will measure temperature, humidity and ambient light intensity, and externally temperature, humidity, wind speed and solar radiance.

By collecting data over a period of six months, the researchers will be able to gather enough intelligence on the building to then give client advice on how the current building systems are functioning and how they could be improved by retrofitting the premises to make them more energy efficient and cost-effective.

AI and IoT for energy savings

Professor Lukumon Oyedele, the principal researcher at UWE Bristol on the project, said: “This project contributes to fast-forwarding the adoption of AI and IoT for energy savings and looks to help the building sector to move from ‘reactive’ to ‘predictive’ approaches in developing guidelines for ideal retrofitting actions and low carbon heating.

“What makes it unique is also that we are able to analyse energy efficiencies in different sections of the building, at various times of the day and ultimately we want to see how commercial buildings can contribute to carbon neutrality.”

The experts working on the project hope that i-REAP will fast-forward the adoption of AI and IoT for energy savings and help the building sector move from ‘reactive’ to ‘predictive’ approaches, developing guidelines for ideal retrofitting actions and low carbon heating.

Professor Oyedele added: “Pushing self-generated electricity to the grid gives rise to a cost, which ultimately is passed on to other consumers through their electricity bills.

“If buildings are more efficient, the organisations may be able to generate electricity that only they use, thereby avoiding the extra cost.”

The overall aim of i-REAP is to contribute to UK’s 2050 net-zero carbon strategy and provide enough information that will feed into policy formulation for commercial buildings.

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