Benchmarking and the performance gap
As a result of increases to energy costs, building users and owners are becoming increasingly aware of this 'performance gap'. The performance of low-energy designs is often little better, and sometimes worse, than that of an older building they've either replaced or supplemented.
Evaluation of operational energy use at the design stage by benchmarking provides a key tool to evaluate the likely energy costs, and make informed decisions in relation to the design of the building including and during value engineering. Understanding the basis for the benchmarks is also key to ensuring that building designers, operators and energy managers are comparing expected performance against relevant and comparable buildings.
Examples of our benchmarking services:
Calculation of heating and cooling loads using dynamic simulation modelling software (DSM).
Evaluation of operational energy performance of buildings at the design stage using CIBSE method TM54.
VolDEC. Our Voluntary Display Energy Certificates are a new and innovative voluntary operational energy rating scheme designed for commercial office buildings. They are based on relatively simple data, making them inexpensive and quick to produce. In particular, they solve the issues associated with the landlord and tenant energy split and the lack of relevant benchmarks to enable performance to be measured and compared sensibly and consistently.