All owners of existing non-domestic premises - and builders of new non-domestic premises - are obliged to provide prospective buyers or tenants with an Energy Performance Certificate (EPC).The EPC provides information on energy efficiency using A-G ratings as well as recommendations for improvement. Acting on the recommendations can help you cut energy consumption, save money on bills and help reduce carbon emissions.
Air conditioning:Managers of commercial buildings with air conditioning systems should ensure they are well maintained and do not consume too much energy.All air conditioning systems with an effective rated output of more than 250 kilowatt (kW) must be inspected by an energy assessor. The inspection includes an assessment of efficiency and advice on how it can be improved. From 4 January 2011 all air conditioning systems with an effective rated output of 12 kilowatt (kW) will require an inspection.
Boilers and space heating systems:The efficiency of your boiler has a significant impact on the overall energy efficiency of a building. If the capacity of your heating and hot water system is more than 20 kilowatts and it is more than 15 years old, it is recommended that you get a heating engineer to assess it.
Improvements that may be recommended include:improved heating and hot water system controls such as thermostats, zone controls and sequencing controls ,improved insulation (where this is cost-effective) for boilers, water heaters, piping, hot water storage tanks and ductwork on hot air distribution systems ,installing renewable energy supply systems
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