SOLARGE

Fondazione Edoardo Filograna

Casarano (LE), Italy

Pension house (elderly house) | 154 sqm installation

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Project summary · Technical description · Financing · Development · Downloads

Project Summary

Description
Solar thermal plant for DHW production for "Edoardo Filograna" elderly house.
The investor decided to install a solar thermal plant after meeting a qualified solar planner. The availability of national subsidies for SMEs further convinced the managment. Proposals for a solar thermal plant had been made by other solar companies before, but none was based on a previous energy consumption analysis, thus being far undesized.
The designer planned the system with a solar fraction of 60 %.
The installing enterprise has been chosen with regard to quality and experience and has done a good and reliable job.


 


Building

Type of building

Elderly house

Number of users / dwellings, floors

120 users
3 floors

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

65,700 kWh/a


System engineering

Year of construction of CSTS

2007

Type of collectors

Flat plate collectors

Thermal power

95 kWtherm.

Aperture area of collectors*)

136 m2

Buffer storage

6 m3

Hot tap water storage

3 m3

Total capacity of boilers with energy source

not available (liquid gas)

Type of hot tap water heating

Centralised

Type of heating system

./.


Costs

Total cost solar system

101,000 Euro

Cost of the CSTS / gross area of collectors

656 Euro/m2

Subsidies

50 %


Output

Output of solar heat**)

81,000 kWh/a

Reduction of final energy***)

135,000 kWh/a

CO2-emissions avoided

30 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

 

 


Katia Gorga, Fondazione "Filograna", direttrice:

"This was a very positive experience of reduction of energy consumption.
The solar thermal plant effectively provides energy savings, reducing annual costs for domestic hot water preparation at the same time."

 

 


Owner

Fondazione "Edoardo Filograna"
- Ente Morale -
Katia Gorga (Direttrice)
Viale Salvatore De Matteis snc
Casarano (Lecce), Italia
Phone: +39 0833504609
Fax: +39 0833599314
info(at)fondazionefilograna.it
www.fondazionefilograna.it


Owner

See owner

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Technical description

 


Description of the CSTS

Year of construction of CSTS

2007

Thermal power

95 kWtherm.

Gross area of collectors

154 m2

Aperture area of collectors

136 m2 

Type of collectors

Flat plate collectors

Type of assembly

On roof top / 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

Buffer storage

6 m3 (2 × 3 m3)

Hot tap water storage

3 m3 (1 × 3 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

3 m3

Specification (if necessary)

./.


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, total water consumption

Data accessible via internet

No

Scientific monitoring / follow up

No

Maintenance contract

Yes

Visualisation of the solar heat output

Yes


Yield of CSTS plant

Output of solar heat

81,000 kWh/a

Origin of data

Calculated

Measuring point

Between storage and piping to taps

Reduction of final energy

135,000 kWh/a

Origin of data

not avaible

Solar performance guarantee

No


Heat consumption

Whole energy consumption for heating purposes after CSTS implementation

65,700 kWh/a

Origin of data

Calculated

Energy used for

Hot tap water heating

Whole energy consumption for heating purposes before CSTS implementation

164,248 kWh/a

Total tap water consumption

3,212 m3/a

Hot tap water consumption

not available

Hot tap water temperature

not available

Cold water temperature

not available

 

 


Summary

The solar thermal plant is made of two collector fields (77 m2 each), one installed on the roof, the other one on a terrace. Two expansion vessels of 100 l each ensure the plant’s security.
Heat exchangers, pumps and safety components are installed in the attic, in order to reduce the copper pipings.
The heat exchangers are connected with the conventional plant, which is located in the basement.



Click image for larger view

 


Planner

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 %
(Bando Regionale per PMI)


Costs of solar materials

Total cost of solar system

Detailed costs for

101,000 Euro

Collectors

70,000 Euro

Elevation / mounting structure

9,000 Euro

Storage / heat exchanger

./.

Backup heater

./.

Control

./.

Installation

16,500 Euro

Planning / Engineering

5,400 Euro

Others

./.


Operation costs of heating system

Increase of the operation cost after CSTS implementation

not available

 



Introduction
The investor decided to install a solar thermal plant after meeting a qualified solar planner.
The availability of national subsidies for SMEs further convinced the managment.




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Development & experiences

Qualitative aspects of the CSTS

  • The plant is working in a satisfactory way. The co-operation between investor, planner and installer was very positive.

  • The investor decided to install a solar thermal plant after meeting a qualified solar planner. The availability of national subsidies for SMEs further convinced the managment.


 


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

  • Proposals for a solar thermal plant had been made by other solar companies before, but all none was based on a previous energy consumption analysis, thus being far undesized. The designer planned the system with a solar fraction of 60 %. The installing enterprise has been chosen with regard to quality and experience and has done a good and reliable job.

  • The plant is working since a few months only. So far the solar output is according to the expected values.

  • So far the plant is working as expected.

  • Good co-operation between investor, planner, system provider and installer is crucial.

  • New solar thermal plants will be installed on other buildings.

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Downloads

SOLARGE_goodpractice_it_fondazionefilograna.pdf

this datasheet in printable PDF-format

0.9 M

fondazionefilograna_scheme.pdf

the hydraulic scheme

76 K

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