Flidunen - Sustainability leap for Vlieland's sports center
Photo credit: J. Stemerdink
Flidunen - Sustainability leap for Vlieland's sports center
The ambition of Vlieland, a small peninsula of the Netherlands, is to become energy-neutral in 2020. Its sports center was originally built in 1992. Several sustainability measures have reduced energy-demand by 64% and will start to generate money after 7 years of operation.
Primary project use
Project Type
Spatial Scale
Single Building
Site Characteristics
Sectors of Innovation
  • Built Environment
  • Energy
Type of Innovation
  • Technical
Origin of the idea
  • Private Sector Company
Time to Market
Operational Now
Project Status

The sports center ‘Flidunen’ on the Dutch peninsula of ‘Vlieland’, originally built in 1992, was in need of a sustainability upgrade to reach the municipality’s ambitions. By 2020, Vlieland aims to be energy-neutral. With the help of Urgenda and ASN Bank, the sports facility received a significant sustainability upgrade.

Energy savings
The double glazing of the sports center was replaced with gas-filled HR++ glas to increase the insulation of the complex. The swimming pools are covered with a cover foil when they are not in use to retain the heat. The air conditioning system of the locker rooms is replaced by a highly efficiency system. The lighting of the sports hall will be replaced and fitted with a “Dali” control system, making the whole lighting can be dimmed to the specific use of the sports hall.

Making use of solar energy
Due to the many hours of sunshine on the peninsula, a production of 1 kWh/watt-peak/year is possible. Little over 125 solar panels are installed on the roof to generate sustainable energy, leading to an energy saving of approx. 16.000 kWh (almost 13% of the total energy-use). ‘Heatpipes’ on the roof convert solar heat to usable high-temperature heat. The heat generated is used to heat the swimming pools and central heating system. The sustainability measures result in an overall energy-saving of 64% (126,8 tonnes of CO2).

Payback period
A quarter million euros has been invested with help from ‘Streekagenda Waddeneilanden’ (a consortium of the local municipality, the province and the water board) and the ASN Bank. The total payback-period of the investment is 7 years, after which the measures will start to generate money.

Creator of profile
  • Roger Toussaint, MSc.
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