Under information facts the swedish epa presents facts aboUt different issUes
in
fo
rm
at
io
n
fa
ct
s
photo: Kenneth hardy
Low energy use at Västervik
sports centre
Västervik, in south sweden, has saved both energy and money since modern energy-efficiency equipment was installed in its swimming pool and bowling alley. Energy use in the sports centre has so far fallen by around 830 mWh/year, and operating costs have been reduced by efficient heat recovery.
Energy efficiency at the Västervik sports centre is a good example of how a local authority can save energy and money by installing modern equipment for ventila-tion and heat recovery in a facility with high energy consumpventila-tion.
PositiVE EnVironmEntal and Economic imPacts
The well-used sports centre, including a swimming pool and bowling alley, is in central Västervik. In 1999 the Municipality received grants from the local invest-ment programme (LIP) to improve the facility’s energy efficiency. An efficient ventilation system with a dehumidifier and heat exchanger was installed at the swimming pool, reducing the need to introduce cold air. In addition the bowling alley, which did not have heat recovery, was given a modern heat-recovery plant.
Lower operating costs due to efficient heat recovery. •
Reduced energy use (electricity and district heating) for the plant at around •
830 MWh/year.
modErn EquiPmEnt saVEs EnErgy
The modern and highly efficient units for heat recovery, dehumidification and heat exchange result in lower operating costs and reduced energy use, which means that the Municipality of Västervik saves energy and money.
information facts best practice exampLes energy efficiency Lip – LocaL inVestment programme, sweden
swedish EPa se-106 48 stockholm. Visiting address: stockholm - Valhallavägen 195, Östersund - forskarens väg 5 hus Ub, Kiruna - Kaserngatan 14. tel: +46 8-698 10 00, fax: +46 8-20 29 25, e-mail: registrator@naturvardsverket.se internet: www.swedishepa.se orders ordertel: +46 8-505 933 40, orderfax: +46 8-505 933 99, e-mail: natur@cm.se address: cm-gruppen, box 110 93, se-161 11 bromma. internet: www.naturvardsverket.se/bokhandeln
Installation at the swimming pool resulted in slightly higher air humidity, but a relative humidity of 60% is common in swimming pools and difficult to reduce without inconveniencing bathers. A new fan room installed in the roof contribu-ted to higher than anticipacontribu-ted costs, but the financial and economic gains out-weigh these.
New frequency-controlled circulation pumps for the pool water were instal-led in 2007. They are to have occupancy control capability, giving a further improvement of energy saving and heat recovery.
PotEntial and futurE bEnEfit
Baths and sports facilities are heavy energy consumers, so measures to save en-ergy are highly effective. Many baths were built in the 1960s and 1970s. Develop-ments in recent decades, for example featuring adventure pools, spa facilities and rehabilitation pools, have meant a rise in water temperature of up to 10 degrees. The increased number of facilities – both in Sweden and abroad – with stricter de-mands for temperature, ventilation and water treatment, means that more energy is needed. This makes energy efficiency measures crucial and also improves the market prospects for good energy, ventilation and water treatment systems.
why best practice
the project has had a favourable environmental impact, with major energy savings and greater economy. the local authority is continuing with energy investments after the end of the Lip project, by installing circulation pumps with occupancy control for the pool water. information about the facility has been provided through study visits and brochures and on a website. informationsbroschyrer och på webbplats.
information facts best practice exampLes energy efficiency Lip – LocaL inVestment programme, sweden
may 2009 isbn: isbn:978-91-620-8405-9
for fUrther information
contact: Lage haglind, municipality of Västervik tel: +46 (0)490-887 34, lage.haglind@vastervik.se www.vastervik.se/lokala investeringsprogram contractors: sefab in norrköping and Ventkontroll i Linköping ab
for further information on best practice: www.swedishepa.se/bestpractice www.naturvardsverket.se/mir
facts
Lip 1999 Västervik action 17.
environmental investment: mseK 4.6 grant: mseK 1.4
