Best Practice examples from the participating regions/countries:
The energy demand of the outdoor pool Borssum in Emden was reduced by almost 85% thanks to the use of a 1900 m2 absorber plant for pool water heating and a 15,5m2 flat plate surface area collector for service water heating. The average pool water temperature is ensured during the whole season due the the use of a heating pump during bad weather conditions. This solar plant serves not only the outdoor pool but also a neighbouring super market. Thus the produced solar energy is used not only in the pool opening season, but all over the year.
Solaranlagen Lange GmbH
Operator and Pool:
GMF GmbH & Co. KG
Freibad Borssum, Lindenweg 3
The "LENTZAKIS S.A." hotel is located in Rethimno Crete, in southern Greece. It caters mainly for tourism, with capacity of 150 beds and it is 100% occupied in the ssumer and 45% in the winter. The installed system which consists of 152 m2 polypropylene collectors provides hot water for the heating of the outdoor swimming pool. The swimming pool heating needs between March and October are 173. 611 kWh and they are equal to the total collectors output since there is no back up system available. This system was installed in the framework of a solar cooling project which was subsidized up to 50% by National Operational Programme for Energy (of the Greek Ministry of Development).
LENTZAKIS K. A. E.
42 Moatsou St. Rethimno
Crete, 74.100 Greece
Tel. +30 2831024761
The "Rethymno Village" hotel is located in Rethymo Crete in southern Greece. It caters mainly for tourism; with a bed capacity of 170 beds. In 2000, Rethymno Village installed a solar cooling an a swimming pool heating plant in the framework of a solar cooling project subsidezed up to 50% by the National Operational Programme for Energy (of the Greek Ministry of Develpment). The swimming pool heating installation is made out of 19 m2 unglazed collectors that heat a 250 m2 swimming pool from February until November. The heating requirements of the swimming pool are fullly covered by the solar system.
Contack Address: KOUTROULIS BROS S.A. (Owner)
30 Imvrou St., Rethimno
Crete, 74.100 Greece
Tel. +30 2831025523
The "Europa resort hotel" is located in Rethymno, Cret in southern Greece. It caters for tourism; with a capacity of 45 beds and 11 apartments. In 2001, SOLE S.A. installed a DHW solar thermal and a swimming pool heating plant. The swimming pool heating installation consists of 32 m2 unglazed collectors that heat a 25 m2 swimming pool. The heating requirements of the swimming pool are fully covered by the solar system.
Contack Address: Europa Resort Hotel
Crete, 74.057 Greece
Tel. +30 283420200
Gödöllő is a samll university town about 30 km northeast from Budapest. The water of the swimming pool at the campus o the Szent István University (Gödöllő, Hungary) is partially heated by solar energy. The 7,3 million HUF installation was financed by the Department of Agriculture and Rural Development of Hungary and the Self-government of the Town of Gödöllő. The solar collector consists of 18 glazed flat collectors having a total area of 33,3 m2. The collectors are facing south and have a deline of 45°. Between May and September, the system is heating the 700 m3 swimming pool, while during the rest of the year the system is heating the 2 m3 hot water tank of the nearby nursery. During a monitoring period of 1st July-31st December 2000, the collector utilized 4.3 MWh solar energy leading to 470 m3 savings of natural gas. The whole system is also used for educational purposes at the Szent István University.
Planning and Installation: Fiorentinin Hungary Kft.
Operator and Pool: Szent István Egyetem
2103 Gödöllő, Prater K. u. 1-3
The City of Lyon made a commitment on a policy of reducing energy consumptions on its building heritage. The swimming pool of Vaise is the only indoor olympic pool of Lyon. The municipality made renovation works in 2006-2007 with the aim of reorganizing the room changing facilities and of opening during the summer period (opening pool outwards for creacing a sun terrace). Energy savings were taken into account by the implementation of 2 solar installations.
Client: City of Lyon
Office study: Etamine et Séchaud (Lyon - 69)
Soalr thermal system: Giordano (Aubane - 13) for solar tube absorbers
and AS Solar/importer CEL (Migennes - 89) for solar flat absorbers
Installer: AMEC SPIE South-East (Rillieux-la-Pape - 69)
Supportted by: ALE
The decision to build a solar system resulted from the desire to reduce pressure on the environment in first place, following with potential energy cost saving. The solar system consists of two solar fields with a total area of 72 m2. The system is used for preheating of swimming pool water and tap water. The tap water is heated and stored in a heat storage with an integrated tube heat exchanger and the pool water is heated with two plate heat exchangers.
Contact address: Dom paraglegikov d.o.o.
Pool Dom paraplegikov in Pacug.pdf
The whole roof of the indoor swimming pool is used as solar a solar roof with unglazed solar collectors of 600 m2. The system operates from May until September. A buffer storage with a volume of 2 m3 is made out of concrete and used for chemical preparation of pool water and for maintainig a constant level of water in the swimming pool as well. The cost of the solar collector was 40,2 €/m2 due to the fact, that only additional cost for stainless steel piping and pump was paid.
Producer: Trimo d.d.
Owner and operator: Terme Čatež d.d.
Pool address: Istrska cesta 67
Hotel Žusterna in Koper.pdf
In 2004 two heat pumps and solar system were installed. The solar system is used for preheating of indoor and outdoor pools. Vacuum collectors were selected according to available space. In 2007 wood biomass boiler of 500 kW started with operation. In the year 2005 the National award „Most energy efficient system“ was grant to Company Zarja-Kovis d.o.o. for concept of energy supply of Therme Snovik. In 2008 Terme Snovik were awarded with the European Eco-label for tourist accommodation service.
Installation: Zarja korvis d.o.o.
Planning: Auxillia 2000 d.o.o.
Owner and Operator: Zarja kovis d.o.o.
Pool address: Snovik 7
1219 Laze v Tuhinju
Pool Terme Snovik in Kamnik.pdf
The pilot plant in Melegnano (Milano) was installed in 1999 on a public swimming pool and partially financed by the European Community. 200 square metres of solar collectors provide heat for both the hot water system (81 MWh/a) and the swimming pool (42 MWh/a). The performance of the plant has been monitored accurately during the first year. A solar performance guarantee (at least 500 kWh/sqm) was available for the first twelve months of operation, whereas the calculated heat production had been estimated to about 615 kWh/sqm. The plant has been planned according to large scale criteria (large collector modules, low flow). The total system costs amount to about 625 €/m2.
Contact Address: MEA s.p.a.
via Zuavi, 70
Telf. +39 02 982271
Swimming pool of Melegnano.pdf
ASD Osimo Nuoto, operator of this sport centre, decided to install a solar thermal plant for domestic hot water preparation, space heating and pool heating. The Municipality of Osimo, owner of the sports centre, approved the project and participated in the investment.
Owner of the building:
Comune di OSIMO - Assessore all'ambiente Franceso Pirani
Piazza del Comune n.1
Osimo (AN), Italy
Tel. +39 07172491
Operator of the plant:
A.S.D. Osimo Nuoto
via Flaminia 1° n.24
Osimo (AN), Italy
Tel. +39 3473659516
Swimming pool of Osimo.pdf
Within the renovations of the heat supply of the swimming pool
in Lenk, a replacement for the short-wave heating system, which
provided heat for free for 20 years, had to be found. The idea of
using solar energy not only for the heating of pool water but also
for the showers, came into consideration as a result of the ban on
the use of traditional energy sources like oil and gas for the heating
of the outdoor pool. With the Solardach AS both the outdoor and
the indoor pools are supplied with solar energy round the year. The
priority in the summer time is the outdoor pool and in the winter time
depending on the temperature, it is selected between the indoor
pool and the combisystem. The absorber Solardach AS comprises
a complete roof system a bottom roof layer, a waterproof roof panel,
and roofi ng. Considering that the previous roof was permeable,
the water tightness was a fundamental point to achieve during the
renovation works. The surface area needed for Solardach AS absorbers is signifi cantly smaller than that for conventional
swimming pool plastic absorbers, when similar annual yields are compared. The high-grade-steel Solardach has a
durability of more than 30 years, which clearly makes it more resistant than conventional plastic absorbers.
E´nergie Solaire S.A. /swt solar gmbh
Planning and design
Energie- und Gebäudetechnik, Zweisimmen
CH 3775 Lenk
12 Swimming pool of Lenk.pdf
Since the complete renovation of the open
swimming pool Hänigsen in Niedersachsen,
the pool water has not been warmed
up any more with oil as an energy source,
but with solar energy. As a consequence,
the community of Ütze can save about
20.000 €. The pool water is warmed with
580m2 of Sportsolar and 160m2 of Classisolar
absorbers. The SportSolar absorber
from the company SOLKAV is not installed
on the roof of any building, but it is integrated
around the edge of the swimming pool.
This type of absorber saves the costs of the
traditional heating system, as well as the
cost of the material used to cover the area
surrounding the pool border.
Firma Solkav GmbH
Planning and design
Firma: VA Wiechmann & Partner
Expo Plaza 10, 30539 Hannover
Gemeinde Uetze, 31311 Uetze
Adresse des Freibades Hänigsen:
Am Fliessgraben 32, 31311 Hänigsen
The Friedrich-Ludwig-Jahn swimming pool located in Benshausen,
was originally constructed in 1934. In the years 1999 to 2000 the
facilities were completely modernized with the newest technologies.
Benshausen is located in the Thüringer forest, i.e., the Region with
the least amount of sun hours per year. Before the renovations were
undertaken the pool water was not warmed. However, it was clear
that the long term solution to attract more visitors was to warm up
the pool water. In order to keep the pool running costs as low as
possible, it was planned to implement solar thermal absorbers as
heating system. The absorber system was fi nally installed in the
year 2001. The 370 m2 of absorber were installed on the roofs
of the changing rooms, toilets and carports. The absorber system
warms up the pool water to a temperature of 24°C. Once the target
temperature has been reached the system is automatically switched
off. The investment costs for the absorber system of 30.504 € were paid off in a period of four and a half years, although
the admission fare of 2 € per day lies well below that of other conventionally heated open swimming pools in the vicinity
(from 3 to 3,5 €). The specifi c costs of the solar energy for the warming of the water pool lie under 1,5 ct/kWh, if a
minimum use period of the absorber system (25 years) is considered.
Wassertechnik Wertheim GmbH & Co. KG
Weststraße 24, D-04683 Naunhof
Planning and design
Ingenieurbüro Möller + Partner GmbH
Siebleber Str. 9
Tel: 03621 87920
Aschenhofstr. 23a, 98554 Benshausen
Please download Datasheet Outdoor Pool of Friedrich-Ludwig-Jahn
Opened in 1973, the nautical center of Bron is an equipment
of sports and leisure activities. Its popularity exceeds the
limits of the municipality with more than 260.000 visitors a
year. With a capacity of 1.200 persons, it has an opening
roof and several pools: an Olympic pool covered with 50 m
(8 lines for swimming) of a constant depth of 1,80 m, a small
pool covered of 20 m with a depth from 0,7 to 1,2 m and a
paddling pool situated outside. In the 90s, a condenser im
the system of heating. The nautical center benefi ted
of a rehabilitation with the method HQE ® (environmental
quality of buildings) in 2006 and 2007 which ameliorated
conditions of reception and features of the equipment.
Client: City of Bron
Client Assistance: SIGERLy (Villeurbanne-69)
Office study: Girus (Vaulx en velin - 69)
Architect: JAPAC (Mont-Saint-Aignan-76)
Solar thermal collectors: Clipsol (Aix les bains-73)
Installer: Rhone-fluides (Irigny-69)
Photovoltaic panels: Ténésol (La Tour de Salvagny-69)
Information: City of Bron, Technical services
The outdoor swimming pool Grünhöfe was opened on 01.07.1961. In the seventies, a system to heat the pool water was installed. Since the year 2006, the outdoor pool Grünhöfe has been deeply renovated. In 2007, it was decided to replace the old heating system with a solar one. The 820m² of absorber area were installed on the roof of the single available building in place. The absorber system reached a temperature of 26° C during the first year of operation, i.e. 2008; at such high temperatures the solar heating system is automatically switched off. The minimum temperature reached during the same period was 20° C. The results from the first year of operation fulfilled all the expectations.
Inder Ecke 10
Ingenierubüro Wolff + Partner GmbH
Operator: Bädergesellschaft Bremerhaven mbH
Zur Hexenbrücke 11
The solution developed together with Bäderland Hamburg for the combined indoor/outdoor swimming pool of Billstedt, was tailor-made to the particular needs of the pool facilities. The solar heating system is unique in Europe and includes the following components:
- Solar absorber system: 950 m2 absorber surface area
- Heat exchanger output: 2 x 540 kW
- Heat pump run with a gas engine and NH3 (ammoniac) as cooling medium
Winter days: 207 kW
Summer days: 390 kW
+ Engine waste heat: 50 kW
+Exhaust gas waste heat: 60 kW
Installation, Planning and Design:
SOLKAV Alternative Energie Systeme GmbH
Operator and pool:
Bäderland Hamburg GmbH