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Catania, Italy
Sports centre | 676 sqm installation
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Description
This plant was installed in the framework of the "Comune Solarizzato" project, thus benefitting from a public financial contribution. Playa is the major sport centre in the city and hosts a lot of different sport events. The solar plant described here provides heat for the swimming pools, while a smaller solar plant (about 100 m² with a 4,000 l tank) heats up tap water. All in all, 302 solar collectors with selective coating have been installed, with a total gross area of 676 m².
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Building
| Type of building | Sports centre
| Number of users / dwellings, floors | 40,000 users/year
| Year of construction | sixties
| Total effective area (heated) | ./. | Hot tap water consumption (measured/estimated) | not available
| Whole energy consumption for heating purpose after CSTS implementation | not available
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System engineering
| Year of construction of CSTS | 2006
| Type of collectors | Flat plate collectors
| Thermal power | 440 kWtherm.
| Aperture area of collectors*) | 628 m2 | Buffer storage | ./. | Hot tap water storage | ./. | Total capacity of boilers with energy source | 1,000 kW, natural gas
| Type of hot tap water heating | Centralised
| Type of heating system | ./.
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Costs
| Total cost solar system | 390,000 Euro | Cost of the CSTS / gross area of collectors | 577 Euro/m2 | Subsidies | 50 % |
Output
| Output of solar heat**) | 450,000 kWh/a | Reduction of final energy***) | 600,000 kWh/a | CO2-emissions avoided | 138 CO2/a
| Solar performance guarantee | No
| *) 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 | |
Giuseppe Sangani, Comune di Catania / ingegnere – Energy Manager:
|  "The municipal energy plan, which I have contributed to develop, foresees following priority objectives:
1. reduction of energy consumption
2. reduction of emissions
3. use of renewable energy sources
4. reduction of operation costs
5. creation of new jobs for application of law 10/91 and thermal plants verification
6. creation of small networks of installing and maintenance enterprises
Thanks to the "Comune Solarizzato" program, which was financed by the Ministries of Environment and work, we were able to reach a lot of objectives foreseen in the municipal energy plan, including reduction of operation costs. Small enterprises networks have been created and industrial production of solar thermal components has been enhanced during the project. Besides, the solar thermal technology has been promoted towards the citizens, particularly in schools, kindergartens and sport centres."
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Owner and operator
| Comune di Catania
Geom. Riccardo Barbagallo
Piazza Spedini c/o Stadio A. Massimino
Catania, Italy
Phone: +39 0957425756
Fax: +39 0957425748
riccardo.barbagallo
(at)comune.catania.it
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Description of the CSTS
| Year of construction of CSTS | 2006
| Thermal power | 440 kWtherm. | Gross area of collectors | 676 m2 | Aperture area of collectors | 628 m2 | Type of collectors | Flat plate collectors
| Type of assembly | On flat roof
| Orientation of collectors | South (0°) | Inclination angle to horizon | 45°
| Freezing protection | Glycol
| Overheating protection | Expansion vessel
| Operation mode | Low flow
| Use of CSTS for | Swimming pool heating
| Buffer storage | ./. | Hot tap water storage | ./. | Control of backup-system / CSTS | Separated control
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Hot tap water system
| Type of hot water heating | Centralised
| Recirculation system | No
| For decentralised systems:
The installation on the consumer site | ./.
| Size of storage for hot tap water | ./. | Specification (if necessary) | 1,000 kW, natural gas (three boilers for pool heating)
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Space heating system
| Type of heating system | ./.
| Number of boilers | ./. | Total capacity (power output) of boilers | ./. | Capacity of each boiler (year of construction) | ./.
| Energy source | ./. | Type of boiler system | ./. |
Type of operation
| Operator of the CSTS system | Self-operation
| CSTS monitoring | Yes: output of solar heat (Ufficio Tecnico Comune di Catania)
| Data accessible via internet | No
| Scientific monitoring / follow up | No
| Maintenance contract | Yes: monthly
| Visualisation of the solar heat output | No
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Yield of CSTS plant
| Output of solar heat | 450,000 kWh/a | Origin of data | Design (calculated)
| Measuring point | Between collector and storage
| Reduction of final energy | 600,000 kWh/a | Origin of data | calculated with boiler yearly efficiency of 75 %
| Solar performance guarantee | No
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Heat consumption
| Whole energy consumption for heating purposes after CSTS implementation | ./. | Origin of data | ./. | Energy used for | ./. | Whole energy consumption for heating purposes before CSTS implementation | ./. | Total tap water consumption | ./. | Hot tap water consumption | ./. | Hot tap water temperature | ./. | Cold water temperature | ./. | |
Summary
| The flat plate solar collectors are installed on the flat roof of a gym. Due to strong wind the mounting structure for the collectors is fastened to the roof-carrying structure. A stainless steel heat exchanger AISI 316L transfers heat to the swimming pool. |
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Producer of collectors
| Ecosol de De Dominici Armando
Armando De Dominici
Via G. Verdi, 107
Catania, Italia
Phone: +39 095530832
Fax: +39 095530832
ecosol(at)ecosol.it
www.ecosol.it
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Financing of the CSTS
| Form of financing | Purchase, 50 % self-financing
| Distribution in percentage | 50 %: The Ministry for Environment subsidised this plant by 50 % of the investment costs.
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Costs of solar materials
| Total cost of solar system | 390,000 Euro | Detailed costs for
| | Collectors
| not available
| Elevation / mounting structure
| not available | Storage / heat exchanger
| not available | Backup heater
| not available | Control
| not available | Installation
| not available | Planning / Engineering
| not available | Others
| not available |
Operation costs of heating system
| Increase of the operation cost after CSTS implementation | not available | |
Introduction
The Italian Ministry of Environment provided 50 % of the investment costs in the framework of a program called "Comune Solarizzato". Aim of this program was to enhance technological innovation in some regions of Italy. Municipalities were supposed to be the main actors, thus introducing new cultural changes in citizens' lifestyle.
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Experiences management
| Experienced problems or failures? | not available
| Found solutions to these problems or failures? | not available |
Financial effects / project performance
| Project economically efficient? | Yes
| Fiscal or other financial effects? | not available | Effects on rental fees? | not available |
Experiences technical staff
| Experienced problems or failures? | see above
| Found solutions to these problems or failures? | see above
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Coming soon
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