This building required between 12 and 14 individual indoor units per floor running from two outdoor units. There is one computer system in the building which operates all of the units. Calibrate Energy have access to this computer from their office saving the end user time and labour costs.
The Fresh Air system
The fresh air that was previously supplied to this building was pre-heated with a 265 kilowatt output gas boiler. This is a very commonly used heating source for fresh air in Hamilton buildings and is hugely inefficient.
The system now has one heatpump which has 4 kilowatts of input (the same energy usage as two toasters would have) and has an 18 kilowatt output. It is not hard to image the phenomenal cost savings here.
Furthermore, the system is fitted with intelligent control system that responds to CO2 sensors installed throughout the building, regulating the fan speed of the fresh air system in accordance with these sensors. This results in a healthier, more productive working environment that costs less to run.
The installation of the Fresh Air and the Heat Recovery systems have reduced the running costs of this building from £116,000 per annum to £18,500 - a whopping saving of $97,500 per annum! On top of this the maintenance costs are 50% less as the system can be checked from the office and Calibrate Energy provides a monthly breakdown of the energy that each tenancy uses meaning that the building is now based on an undisputable 'user pays' system - this in turn has meant each individual business can monitor there consumption and make adjustments accordingly, further reducing there usage (and imagine the benefit to the actual building owners who now have a hands off approach to the energy usage)
The next step in the process is to install Photovoltaic cells on the building roof to further offset costs to the building - watch this space
This is one example of how Calibrate Energy can design an efficient and user friendly system on a large scale. Calibrate Energy have installed these Fujitsu systems with excellent results into offices with as few as 10 individual areas. If you have a workplace that would benefit from a more productive work environment, reduced running costs and more control of the temperature then contact the experts at Calibrate Energy for a friendly and complimentary appraisal.
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