De Zwoer

Driebergen-Rijsenburg, Netherlands

SSports centre: swimming pool | 750 sqm installation

Project summary · Technical description · Financing · Development · Downloads

Project Summary

Description
Swimming pool De Zwoer realised a 750 m² solar thermal energy system with covered single glazed collectors for pool as well as shower heating. The system has been built in 1990 and has been functioning well since that date. The solar system heats the fresh cold make-up water that is supplied to the pool continuously during the day. That enables a small solar heat storage volume for the system of 2.7 m³. The swimming pool management has always been keen on opportunities for energy saving and renewable energy. In addition to the solar system the pool uses a combined heat and power unit (CHP) and heat-recovery from pool waste water.

Building
Type of building	Sports centre: swimming pool
Number of users / dwellings, floors	not available
Year of construction	1971
Total effective area (heated)	not available
Hot tap water consumption (measured/estimated)	44,000 m³/a (measured: hot tap water and pool make-up water consumption)
Whole energy consumption for heating purpose after CSTS implementation	1,128,000 kWh/a (measured: for shower water and pool make-up water)
System engineering
Year of construction of CSTS	1990
Type of collectors	Flat plate collectors
Thermal power	525 kW_therm.
Aperture area of collectors^*)	750 m^₂
Buffer storage	2.7 m³
Hot tap water storage	./.
Total capacity of boilers with energy source	900 kW, gas (2 × 450 kW)
Type of hot tap water heating	Centralised
Type of heating system	Centralised
Costs
Total cost solar system	206,000 Euro
Cost of the CSTS / gross area of collectors	275 Euro/m²
Subsidies	not available
Output
Output of solar heat^**)	363,000 kWh/a
Reduction of final energy^***)	448,000 kWh/a
CO_2-emissions avoided	83 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

Henk Schriekenberg, technical pool manager :

"The solar system has been functioning very reliable since 17 years. We try to squeeze out all the solar heat gain possible by efficiently incorporating the system in our pool operation. The system contributes to keeping our energy costs acceptable in this time of fast growing energy prices."