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St. Raphaël, France
Hotel | 90 sqm installation
+++ photo gallery +++
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Description
The hotel owner has made the choice to answer to its clientele environmental concerns, especially the Northern-European one and, also, tour operators more and more sensitive by these processes. This hotel includes a CSTS since its creation date in 1981.
In a sustainable development approach, the owners have decided to totally restore the CSTS for hot tap water production and swimming pool heating. The restoration has permit to reduce collectors surface due to the significant evolution of collectors efficiency since 20 years. The surface is passed from 130 sqm to 90 sqm of collectors perfectly roof integrated.
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Building
| Type of building | Hotel
| Number of dwellings, floors | 40 dwellings
3 floors
| Year of construction | 1981
| Total effective area (heated) | not available | Hot tap water consumption (measured/estimated) | 1,350 m3/a (calculated)
| Whole energy consumption for heating purpose after CSTS implementation | 66,100 kWh/a (estimated)
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System engineering
| Year of construction of CSTS | 2003
| Type of collectors | Flat plate collectors
| Thermal power | 63 KWtherm.
| Aperture area of collectors*) | 90 m2 | Buffer storage | 4.5 m3 | Hot tap water storage | 1.5 m3 | Total capacity of boilers with energy source | not available
(electric heat pump)
| Type of hot tap water heating | Centralised
| Type of heating system | Centralised
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Costs
| Total cost solar system | 101,000 Euro | Cost of the CSTS/gross area of collectors | ca. 1,000 Euro/m2 | Subsidies | 48 % |
Output
| Output of solar heat**) | 58,000 kWh/a | Reduction of final energy***) | 68,000 kWh/a
| CO2-emissions avoided | 19 t CO2/a
| Solar performance guarantee | No
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*) Aperture area = light transmitting area of the front glass
**) measured, between storage and piping to taps (solar system output)
***) related to the measured output mentioned before
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Mr. de Gaudemont, hotel manager:
| „I have wished involve the hotel in a global environmental approach that integrate water, energy and waste management. To follow such an approach, it is to take the lead over other hotels and thus to have a competitive advantage.“
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Owner
| Hôtel du Golf de Valescure
M. de Gaudemont
Avenue Paul l’Hermite
83700 Saint Raphaël, France
Phone: +33 494 528500
Fax: +33 494 824188
info(at)valescure.com
www.valescure.com | |
Description of the CSTS
| Year of construction of CSTS | 2003
| Thermal power | 63 kWtherm. | Gross area of collectors | not available | Aperture area of collectors | 90 m2 | Type of collectors | Flat plate collectors
| Type of assembly | Roof-integration
| Orientation of collectors | South-East (-20°),
| Inclination angle to horizon | 30°
| Freezing protection | Glycol
| Overheating protection | Expansion vessel
| Operation mode | Variable
| Use of CSTS for | Hot tap water heating
Swimming pool heating
| Buffer storage | 4.5 m3 | Hot tap water storage | 1.5 m3 | Control of backup-system/CSTS | Shared control
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Hot tap water system
| Type of hot water heating | Centralised
| Recirculation system | Yes
| For decentralised systems:
The installation on the consumer site | ./.
| Size of storage for hot tap water | 5 m3 | Specification (if necessary) | ./. |
Space heating system
| Type of heating system | Centralised
| Number of boilers | 1
| Total capacity (power output) of boilers | not available
| Capacity of each boiler (year of construction) | not available | Energy source | Electric heat pump
| Type of boiler system | ./.
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Type of operation
| Operator of the CSTS system | not available
| CSTS monitoring | Yes: solar radiation, output of solar heat.
The data observation is controlled by telephonic network and integrated with collectors regulation.)
| Data accessible via internet | Yes
| Scientific monitoring & follow up | Yes
| Maintenance contract | No
| Visualisation of the solar heat output | Yes: data are edited each month and compared with theoretical ones with tables and graphs
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Yield of CSTS plant
| Output of solar heat | 58,000 kWh/a | Origin of data | Measured
| Measuring point | Between storage and piping to taps
| Reduction of final energy | 68,000 kWh/a
| Origin of data | Feasibilty study
| Solar performance guarantee | No |
Heat consumption
| Whole energy consumption for heating purposes after CSTS implementation | 66,000 kWh/a | Origin of data | Estimated
| Energy used for heating of | Hot tap water heating and
swimming pool heating
| Whole energy consumption for heating purposes before CSTS implementation | 134,000 kWh/a
| Total tap water consumption | not available
| Hot tap water consumption | 1,350 m3/a
| Hot tap water temperature | 55 °C | Cold water temperature | 14 °C | |
Summary
| CSTS was installed in 2003 and is composed of 90 sqm of flat plate collectors on roof-integration, with a south eastern orientation of 20° and an inclination of 30°. Hot tap water storage is composed of 2 solar tanks of 2500 l and 2000 l, and a back-up storage of 1500 l. CSTS was realised for hot tap water production and swimming pool heating. |
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Engineering company
| ADRET
M. Roche
ValParc A, Av. de Rome - ZE Les Playes Jean Monet Sud
83500 La Seyne sur Mer, France
Phone: +33 494 10875-0
Fax: +33 494 10875-1
adret.mediterranee(at)adret.net
www.adret.net | |
Introduction
CSTS has cost 101,000 EUR including VAT with 40,000 EUR for solar material, 38,000 EUR for solar installation and 8,400 EUR for planning and engineering. This operation was subsidized at 48 % with 48,174 EUR by the ADEME and the regional council of PACA.
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Financing of the CSTS
| Form of financing | Purchase
| Distribution in percentage | 48 % |
Costs of solar materials
| Total cost of solar system | 101,000 Euro |
Detailed costs for
| Collectors | 40,000 Euro
| Installation | 38,000 Euro
| Planning/Engineering | 8,400 Euro
| Others | ./. |
Operation costs of heating system
| Increase of the operation cost after CSTS implementation | not available | | Special note for subsidy systems in the partner country | ADEME subsidies: 24,987 EUR
Regional council subsidies: 23,187 EUR
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Summary of experiences / Notices to the project performance
The hotel owner has chosen to answer to its clientele environmental concerns, especially the Northern-European one and, also, tour operators more and more sensitive by these processes. This hotel includes a CSTS since its creation date in 1981. In a sustainable development approach, the owners have decided to totally restore the CSTS for hot tap water production and swimming pool heating. | 
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Experiences management
| Experienced problems or failures? | Yes
| Found solutions to these problems or failures? | Yes
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Financial effects / project performance
| Project economically efficient? | Yes | Fiscal or other financial effects? | No
| Effects on rental fees? | No |
Experiences technical staff
| Experienced problems or failures? | Yes
| Found solutions to these problems or failures? | ./.
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Installer
| A.S.I
M. Gerard CALVET
Parc d’activités de la Siagne – Rue Jean Mermoz
06210 Mandelieu la Napoule, France
Phone: +33 4 93 48 90 30
Fax: +33 4 93 48 90 31
solaireasi(at)wanadoo.fr | |
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