Our Building Management System
Our Building Management System (BMS) controls the mechanical and electrical services in 95 per cent of our campus buildings. It ensures intelligent control of building systems and that there's no energy waste. The BMS, for example, will turn on the boilers according to external temperatures, and can report a fire or a break-in. We have nearly 500 meters on campus, the majority on a half hourly basis, providing information to the BMS.
We also have a system of profile alerts. The system checks consumption against historic profiles, and energy use against BMS models, and creates alerts when an item of plant is not functioning as expected (and using more energy than it should). This enables cost avoidance, identifying and fixing issues promptly and avoiding increases in energy use. In little more than 24 months since installation, this helped to identify and prevent potential increases in consumption of around £300,000.
Our work also involves energy generation. In 2012, our Combined Heat and Power (CHP) plant was opened. Located in Davy Building, the CHP plant provides heat to 50 per cent of the campus. It integrates the production of usable heat and power in one efficient process, generating electricity whilst capturing usable heat produced during the process.
In conventional electricity production, heat is a wasted by-product. Our CHP plant is typically 30 per cent more efficient than traditional gas boilers. This has saved the University approximately £3,600 a week. Our new Marine Station has its own onsite CHP.