SOLARGE

Les Glycines

Cagnes-sur-Mer, France

Multi family house | 72 sqm installation

 

 


Project summary · Technical description · Financing · Development · Downloads

Project Summary

Description

This building was built in 1978 and is constituted of 91 dwellings shared in on 7 floors.
The necessity to restore the hot water production installation and the wish to realise economic saving in a sustainable way have brought the co-owners to study solar possibility.
The solar installation, which operates since 2006, is composed of 72 sqm of solar collectors for a solar storage of 6 cbm and will cover 50 % of the hot water demand.



 


Building

Type of building

Multi family house

Number of users / dwellings, floors

91 dwellings
7 floors

Year of construction

1978

Total effective area (heated)

not availble 

Hot tap water consumption (measured/estimated)

2,190 m3/a

Whole energy consumption for heating purpose after CSTS implementation

57,000 kWh/a


System engineering

Year of construction of CSTS

2006

Type of collectors

Flat plate collectors

Thermal power

approx. 46 kWtherm.

Aperture area of collectors*)

approx. 66 m2

Buffer storage

6 m3

Hot tap water storage

13.5 m3

Total capacity of boilers with energy source

electricity, capacity not available

Type of hot tap water heating

Centralised

Type of heating system

Decentralised


Costs

Total cost solar system

96,438 Euro

Cost of the CSTS / gross area of collectors

1,340 Euro/m2

Subsidies

67 %


Output

Output of solar heat**)

57,700 kWh/a

Reduction of final energy***)

64,100 kWh/a

CO2-emissions avoided

10 CO2/a

Solar performance guarantee

Yes

*) 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

 

 


Mr. Berdah, President of the Syndicate council:

"We are very happy and proud to produce our hot water with solar energy."

 

 


Owner

Co-ownership les Glycines
Mr. Berdah
9, rue du Docteur M. Donat
Cagnes sur mer, France
Phone: +33 4 92020810


Operator

See owner

Top of page Project summary · Technical description · Financing · Development · Downloads

Technical description

 


Description of the CSTS

Year of construction of CSTS

2006

Thermal power

approx. 46 kWtherm.

Gross area of collectors

72 m2

Aperture area of collectors

approx. 66 m2 

Type of collectors

Flat plate collectors

Type of assembly

On flat roof

Orientation of collectors

South-East (-20°)

Inclination angle to horizon

45°

Freezing protection

Glycol

Overheating protection

Expansion vessel

Operation mode

Variable

Use of CSTS for

Hot tap water heating

Buffer storage

6.0 m3: three solar storage tanks of 2,000 l each

Hot tap water storage

13.5 m3: three back-up storage tanks of 2,500 l each with the solar storage tanks

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

13.5 m3

Specification (if necessary)

./.


Space heating system

Type of heating system

Decentralised

Number of boilers

./.

Total capacity (power output) of boilers

./.

Capacity of each boiler (year of construction)

./.

Energy source

Electricity

Type of boiler system

Standard


Type of operation

Operator of the CSTS system

Co-ownership syndicate

CSTS monitoring

Yes: solar radiation, output of solar heat, total water consumption. Monitoring is done from afar by telephonic network to insure a permanent control. The engineering company Transenergie supervises these data.

Data accessible via internet

Yes

Scientific monitoring / follow up

Yes

Maintenance contract

Yes: twice a year

Visualisation of the solar heat output

Yes


Yield of CSTS plant

Output of solar heat

57,700 kWh/a

Origin of data

Design (calculated)

Measuring point

Between storage and piping to taps (solar system output)

Reduction of final energy

64,100 kWh/a

Origin of data

Feasibility study

Solar performance guarantee

Yes


Heat consumption

Whole energy consumption for heating purposes after CSTS implementation

57,000 kWh/a

Origin of data

Estimated (from feasibility study)

Energy used for

Hot tap water heating

Whole energy consumption for heating purposes before CSTS implementation

114,400

Total tap water consumption

not available

Hot tap water consumption

2,190 m3/a

Hot tap water temperature

60 °C

Cold water temperature

15 °C

 

 


Summary

The solar installation is composed of 72 sqm of flat plate collectors installed on the flat roof of the building. These collectors are on a south-eastern orientation of 20° and with an inclination of 45°. They are linked to three solar storage tanks and to three electrical back-up storages of 2,500 l each.



Click to enlarge

 


Solar engineering company

Transenergie
Mr. Philippe Feint
Résidence l’Esperou Bat A
72, boulevard Carnot
Cagnes sur mer, France
Phone: +33 4 93004265
Fax: +33 4 92960818
pfeint(at)transenergie.fr
www.transenergie.fr

Top of page Project summary · Technical description · Financing · Development · Downloads

Financing and investment

 


Financing of the CSTS

Form of financing

Purchase

Distribution in percentage

67 %
Subsidies from the Regional Council PACA and the General Council of Alpes-Maritimes


Costs of solar materials

Total cost of solar system

96,438 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

 




The total cost for this operation is of 96,438 € including VAT subsidised at 67 % by the Regional Council PACA and the General Council of Alpes-Maritimes with 64,935 €.


Top of page Project summary · Technical description · Financing · Development · Downloads

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?

Yes: credit tax for the co-ownership living in the building

Effects on rental fees?

Yes: this installation has permitted to obtain a reduction of the annual bill for hot water production


Experiences technical staff

Experienced problems or failures?

not available

Found solutions to these problems or failures?

./.

 


The former hot water production was composed of electrical tanks and was very old. There were lots of problems due to the furring up of pipes. The installation had to be changed and combining the new installation with solar thermal was an option. The president of the syndicate council has validated the beginning of the feasibility study. Results have been detailed during the general assembly and validated by the co-owners.

Top of page Project summary · Technical description · Financing · Development · Downloads

Downloads

glycines_scheme.pdf

this datasheet in printable PDF-format

372 K

SOLARGE_goodpractice_fr_glycines.pdf

the hydraulic scheme

0.9 M