ESOS Energy Audit
The detailed ESOS survey identified a saving of £74,000/year (16%) for a capital investment of £44,500 providing a fast payback in 7 months.
The majority of the savings were achieved through operational change, resetting of BEMS and lighting controls to match the core occupation hours of the building. The controls are already in place and this enables the rapid payback and this reflects the savings that can typically be achieved through reviewing BEMS controls in complex buildings. The reduction in plant operating will significantly reduce electrical loads out-of-hours to deliver immediate savings.
Key projects to deliver savings include the control of ventilation against Carbon Dioxide levels to match occupation, automatic lighting switching to take advantage of good natural light and maximising the use of natural ventilation to reduce fan motive power.