SOLARGE

Terme di Santa Cesarea

Santa Cesarea Terme (LE), Italy

Others: thermal baths | 539 sqm installation

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Project Summary

Description
Solar thermal plant for hot water and space heating and for the heating of thermal water and mud.
Reduction of air pollution and environmental protection led the investor, a consortium of local administrations, to install the solar thermal system, also considering that the thermal baths are visited by lots of tourists.
The investor was awakened by the designer, who first suggested the installation of a solar thermal system. The subsidies for small and medium enterprises convinced the investor definitively.

 


Building

Type of building

Thermal baths

Number of users / dwellings, floors

5,000 users/a

Year of construction

2007

Total effective area (heated)

not available 

Hot tap water consumption (measured/estimated)

not available

Whole energy consumption for heating purpose after CSTS implementation

not available


System engineering

Year of construction of CSTS

2007

Type of collectors

Flat plate collectors

Thermal power

333 kWtherm.

Aperture area of collectors*)

475 m2

Buffer storage

15 m3

Hot tap water storage

5 m3

Total capacity of boilers with energy source

heating oil (capacity not available)

Type of hot tap water heating

Centralised

Type of heating system

Centralised


Costs

Total cost solar system

222,000 Euro

Cost of the CSTS / gross area of collectors

408 Euro/m2

Subsidies

50 %


Output

Output of solar heat**)

332,500 kWh/a

Reduction of final energy***)

600,000 kWh/a

CO2-emissions avoided

300 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

 

 


Luigi Guida, Terme di Santa Cesarea SPA, General Director: 

"Our solar thermal plant effectively covers the energy demand of the thermal baths, thus reducing annual heating costs.
We intend to further promote this experience through a public convention in co-operation with the Region Puglia and the Province of Lecce."

 

 


Owner

Consortium 'Terme di Santa Cesarea SPA'
Luigi Guida (General Director)
Via Roma 40
73020 Santa Cesarea (Lecce), talia
Phone: +39 0836944070
info(at)termesantacesarea.it
www.termesantacesarea.it


Operator

See owner

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Technical description

 


Description of the CSTS

Year of construction of CSTS

2007

Thermal power

333 kWtherm.

Gross area of collectors

539 m2

Aperture area of collectors

475 m2 

Type of collectors

Flat plate collectors

Type of assembly

On flat roof

Orientation of collectors

South (0)

Inclination angle to horizon

not available

Freezing protection

Glycol

Overheating protection

Expansion vessel

Operation mode

High-flow

Use of CSTS for

Hot tap water heating, space heating, swimming pool heating, thermal water and thermal mud

Buffer storage

15 m3 (3 5 m3)

Hot tap water storage

5 m3 (1 5 m3)

Control of backup-system / CSTS

Shared control


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

not available

Total capacity (power output) of boilers

not available

Capacity of each boiler (year of construction)

not available

Energy source

Heating oil

Type of boiler system

Standard


Type of operation

Operator of the CSTS system

Self-operation

CSTS monitoring

Yes: ooutput of solar heat, total water consumption

Data accessible via internet

No

Scientific monitoring / follow up

No

Maintenance contract

Yes

Visualisation of the solar heat output

No


Yield of CSTS plant

Output of solar heat

332,500 kWh/a

Origin of data

Calculated

Measuring point

Between storage and piping to taps

Reduction of final energy

600,000 kWh/a

Origin of data

not available

Solar performance guarantee

No


Heat consumption

Whole energy consumption for heating purposes after CSTS implementation

not available

Origin of data

./.

Energy used for

Hot tap water heating, space heating, swimming pool heating

Whole energy consumption for heating purposes before CSTS implementation

not available

Total tap water consumption

not available

Hot tap water consumption

not available

Hot tap water temperature

4560 C

Cold water temperature

not available

 

 


Summary

The collector field is divided into four subfields, placed on four terracing. Four heat exchangers were necessary. Heat exchangers and pumps have been placed on the roof in order to reduce the copper piping.

The systems provides part of the heat for the thermal baths and mud in the summer. Due to the high load, the plant is completely exploited in summer.

During winter the thermal centre is closed, but space heating is necessary in order to prevent humidity problems. The solar plant provides the whole necessary heating energy and is therefore well exploited also in winter.


Click image for larger view

 


Engineering company

Ing. Giorgio Martella
Phone: +39 3200193107
martav(at)mclink.it

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Financing and investment

 


Financing of the CSTS

Form of financing

Purchase

Distribution in percentage

50 %
(Subsidy program for SME)


Costs of solar materials

Total cost of solar system

220,000 Euro

Detailed costs for

not available

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

 





Availability of subsidies was one of the reasons that convinced the Consortium to install the solar thermal system.


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Development & experiences

 


Experiences management

Experienced problems or failures?

No

Found solutions to these problems or failures?

./.


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?

No

Found solutions to these problems or failures?

./.

 



Summary of experiences / Notices to the project performance
The plant is working as expected.
The system has been installed thanks to the suggestions of a qualified planner.
The subsidies program for SME further convinced the investor.

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Downloads

SOLARGE_goodpractice_it_termesantacesarea.pdf

this datasheet in printable PDF-format

1.0 M

termesantacesarea_scheme.pdf

the hydraulic scheme

187 K

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