Lifetime efficiency under control

摘要

10-80-10: The approximate percentage costs of a building at three key stages of its life: construction; operation and decommissioning. That 80% figure is what it costs to own, occupy and maintain a building, and it is an enormous sum. Of that amount approximately another 80% is the cost of running the building services: air conditioning, heating, ventilating, lighting. Unfortunately, the construction industry is such that we put a tremendous amount of emphasis on reducing that first 10% - the capital costs. This is often to the detriment of long-term operational efficiency. From a building controls point of view, this is an especially important question. So often, BCIA members tell us, the controls are subject to cut-backs at the specification and design stages. Saving money on what may seem like 'small' items such as sensors and actuators is viewed as an almost consequence-free method to minimise that initial 10%.