SOLARGE

WBG Neustadt

Neustadt an der Weinstraße, Germany

Multi-family house | 50 sqm installation

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Project summary · Technical description · Financing · Development · Downloads

Project Summary

Description



 


Building

Type of building

Multi-family houses

Number of dwellings, floors

43 users
24 dwellings
3–4 floors

Year of construction

1977–79

Total effective area (heated)

1,485 m2

Hot tap water consumption (measured/estimated)

583 m3/a (measured)

Whole energy consumption for heating purpose after CSTS implementation

170,766 kWh/a


System engineering

Year of construction of CSTS

2005

Type of collectors

Flat plate collectors

Thermal power

32 kWtherm.

Aperture area of collectors*)

46 m2

Buffer storage

1.9 m3

Hot tap water storage

0.4 m3

Total capacity of boilers with energy source

142 kW,
natural gas

Type of hot tap water heating

Centralised

Type of heating system

Centralised


Costs

Total cost solar system

112,000 Euro

Cost of the CSTS/gross area of collectors

2,222 Euro/m2

Subsidies

0 %


Output

Output of solar heat**)

19,565 kWh/a

Reduction of final energy***)

137,000 kWh/a

CO2-emissions avoided

33.8 t 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

 

 




 

 


Owner

Wohnungsbaugesellschaft Neustadt a.d. Weinstraße mbH
Volker Weiß
Konrad-Adenauerstrasse 47
D-67433 Neustadt a. d. W., Germany
Phone: +49 6321 8996-35
Fax: +49 6321 8996-39
volker.weiss(at)wbg-nw.de
www.wbg-nw.de


Operator

see Owner

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Technical description

 


Description of the CSTS

Year of construction of CSTS

2005

Thermal power

32.48 kWtherm.

Gross area of collectors

50.4 m2

Aperture area of collectors

46.4 

Type of collectors

Flat plate collectors

Type of assembly

Roof top

Orientation of collectors

West (+90°)

Inclination angle to horizon

38°

Freezing protection

Glycol

Overheating protection

Expansion vessel

Operation mode

Variable

Use of CSTS for

Hot tap water heating, space heating

Buffer storage

1.9 m3 (2×950 l, stratifying buffer storage tanks, SOLVIS)

Hot tap water storage

0.4 m3 (1×400 l)

Control of backup-system/CSTS

Shared control: SOLVIS Regieregler


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

0.4 m3

Specification (if necessary)

./.


Space heating system

Type of heating system

Centralised

Number of boilers

1

Total capacity (power output) of boilers

142 kW

Capacity of each boiler (year of construction)

No. 1: 142 kW (2004)

Energy source

Natural gas

Type of boiler system

Condensed


Type of operation

Operator of the CSTS system

Self-operation

CSTS monitoring

Yes: solar energy output, total tap water consumption, space heating and hot tap water (calorimeters)

Data accessible via internet

Yes

Scientific monitoring & follow up

Yes

Maintenance contract

Yes: once a year

Visualisation of the solar heat output

No


Yield of CSTS plant

Output of solar heat

19,565

Origin of data

Measured

Measuring point

Between collector and storage

Reduction of final energy

137,000 kWh/a (total refurbishment measures!)

Origin of data

Billing notes 2003/05

Solar performance guarantee

No


Heat consumption

Whole energy consumption for heating purposes after CSTS implementation

170,766 kWh/a

Origin of data

Measured

Energy used for heating of

Hot tap water heating, space heating

Whole energy consumption for heating purposes before CSTS implementation

380,254

Total tap water consumption

1,435 m3/a

Hot tap water consumption

538 m3/a

Hot tap water temperature

60 °C

Cold water temperature

10 °C

 

 


Summary



 


Engineering 

 

Wieland und Partner
Herr Claus Wiesner
Theodor-Haubach-Str. 12
D-67433 Neustadt, Germany
Phone: +49 6321 400763
Fax: +49 6321 4007-66
claus.wiesner@wieland-partner.de
www.wieland-partner.de

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Financing and investment


 


Financing of the CSTS

Form of financing

Purchase

Distribution in percentage

0 %


Costs of solar materials

Total cost of solar system

112,000 Euro


Detailed costs for

Collectors

10,838 Euro

Elevation/mounting structure

1,489 Euro

Storage, heat exchanger

1,648 Euro

Back-up heater

9,297 Euro

Control

7,067 Euro

Installation

35,000 Euro

Planning/Engineering

./.

Others (SolvisZentro)

34,500 Euro


Operation costs of heating system

Power cost for pumping

not available

Maintenance cost

included

Monitoring cost

114 Euro/a

Other operation cost

not available

Total operation cost

1,108.58 Euro

 

 

Special note for subsidy systems in the partner country


 

 


Addresses


 

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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?

No

Effects on rental fees?

No


Experiences technical staff

Experienced problems or failures?

No

Found solutions to these problems or failures?

./.

 

 


Addresses


 

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Downloads

SOLARGE_goodpractice_de_wbgneustadt.pdf

this datasheet in printable PDF-format

0.9 M

wbgneustadt_scheme.pdf

the hydraulic scheme

46 K

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