Waterworld Leisure Pool
Client: Rank Leisure Group
Site: Waterworld Leisure Pool
Service: Energy Performance Certificate, Display Energy Certificate (DEC),Energy Efficiency Carbon Reduction Commitment and Low Carbon Consultancy Services
Waterworld is based in North Staffordshire and was built in 1990, it is now privately owned after being acquired from the Rank Leisure Group.
Description of the project:
The original building has been extended to include additional retailing and administration facilities and does benefit from some low energy lighting in the main reception areas.
The pool heating and surrounding area space heating is delivered by a gas medium temperature hotwater, horizontal shell boiler with the space cooling being supplied through split air conditioning units.
Asset (EPC) and operational rating (DEC) surveys were carried out on the whole building, which revealed above average results on both certificates. The client never the less wanted to improve the ratings even further, thereby reducing the energy costs and carbon emissions. The total list of 25 recommendations from the EPC and advisory report from the DEC was compiled and prioritised by carbon impact and cost to implement.
The initial areas that were highlighted were as follows:
• Pool lighting.
• Office and common area lighting.
• Process pumping equipment.
The pool lighting which consisted of low pressure sodium luminaires were replaced for T5 with high frequency switching equipment.
The office and common area T8 standard ballast lighting was replaced by 600 X600 grid T5 luminaires with high frequency ballasts.
Variable speed drive inverters were fitted to the pumps which reduced the frequency of the motors from 50hz to 38hz which gave a saving of 65%.
Since the installation of the lighting and inverters savings of £3000/month have been realised giving a carbon reduction 16 Tonnes /month.
Cost to implement the above recommendations – £9k
We continue to work with Waterworld, identifying additional areas of cost and carbon reduction
Ongoing work:
Cooling load reduction of main reception
Techniques employed:
TM44 Air conditioning Inspection
Solar gain reduction
Monitoring and Targeting
References for this case study are available on request
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