

2 June 2009
SAV MICRO CHP SYSTEM AT CHESSINGTON’S NEW HOLIDAY INN
KEEPING THE HOT WATER FLOWING
A combined heat and power system (CHP) provides electricity and hot water for the newly built Holiday Inn at Chessington, Surrey.
The hotel boasts an international meeting centre, a fully equipped fitness suite with 18-metre pool and a choice of 150 safari-themed, en suite bedrooms.
Guests can sleep safe and sound, even though lions and tigers prowl just a hundred metres away. The Holiday Inn is right next door to Chessington World of Adventures and Zoo.
When they wake guests will be assured of constant hot water supplies thanks to a gas-fired EC Power micro-CHP unit and matching thermal store.
The high efficiency CHP machine - part of a range now marketed in the UK by SAV Systems - was specified by Compass Energy Consulting Engineers Limited to match the hotel's hot water demand, running on a continuous 24/7 basis.
The CHP unit with its ultra-reliable, gas-fired Toyota engine is used to generate electricity to contribute to the hotel's 24-hour demand. A unique modulating system ensures that electricity produced matches fluctuating load over the day-night cycle. All the energy generated is put to practical use on site.
At the same time waste heat generated by the micro-CHP unit is fed through a special heat exchanger and used to heat water which is stored in a thermal store at around 80ºC.
This ensures that there is always an ample supply of hot water for domestic services - especially at the periods of peak demand in the morning and evening.
Data from the daily operation of the system can be read on site and is also transmitted via the internet to the monitoring station in Bristol operated by SAV Systems for all EC Power CHP projects.
The micro-CHP system at the Holiday Inn is predicted to achieve an annual cost saving around £6000 – and will make a significant contribution to reducing the hotel's carbon footprint. 2C0 emissions will be cut by around 30 tonnes every year.