Evolution of DHC in The Netherlands

Klaas de Jong, June 11th 2014, Copenhagen

We are small but growing up

DH covers only 4 % of heating demand

Individual gas boilers are standard

Consumers do not trust heat bills and lack freedom of choice for supplier

DH developed after first oil crisispower stations as heat source13 large traditional grids dating from 70’s for some 250,000 households

The traditional players

Utilities selling electricity, natural gas and heat

1. EnecoDH in Utrecht, Rotterdam, The Hague, Leiden, greenhouse areaOwned by municipalities and province

Heat from power stations E.ON and NUON and own CHP

2. NUON (Vattenfall)DH in Amsterdam, Almere, Arnhem, Lelystad, Nijmegenjoint venture with city of Amsterdam

3. Essent (RWE): recently sold to pension funds PGGM and Dalkianew trade name Ennatuurlijk DH in Breda, Tilburg, Eindhoven, Enschede, Zeewolde, Leeuwarden,Zwolle, greenhouse area Plukmade

Gas fired cogeneration in problems

Electricity market disturbed by new coal fired power stations, import of wind an sun from Germany and high price of natural gas compared to coal

NUON builds first large capacity heat storage at Diemen for DH in Amsterdam and Almere

Pipeline Diemen-Almere 8.5 km in sea

Times are changing

New players in the field:• municipalities• waste-to-energy companies• port authorities• owners of greenhouses• contractors

New heat sources:• wood chips• seasonal storage heat & cold• surplus heat industries• deep geothermal heat• biogas• solar heat

Waste-to-energy becomes mayor heat supplier

Large investments in Amsterdam, Rotterdam, Nijmegen, Dordrecht, Alkmaar, Enschede and Delfzijl (open steam grid operated by Seaports Groningen)

Construction of pipeline from AVR to centre of Rotterdam over distance of 17 km: change-over DH from E.ON Power to W-t-E; investment 70 million euro

A lot of projects with seasonal storageindividual and DHC

Amsterdam, terminal cruise ships

Deep geothermal growing fast

In a few years some ten geothermal wells for clusters of greenhouses

Worlds first(?) : methane gas utilised in CHP

In Pijnacker near Delft a greenhouse owner supplies heat to schools and houses

Warmtenetwerk Innovation Awards

Winner professional juryFlexible tube with premounted connections

Election public: DH connected tap water heat pump forlow temperature grids

Biomass

Several new DH schemes with wood chis or wood pellets for 200- 2,000 houses

Replacement of gas fired cogeneration by biomass boilers and biomass CHP in existing DH (examples Purmerend and Eindhoven, Utrecht in development)

Music Quarter Zwolle with wood pellet boilersPilot: real time monitoring water quality

Dutch industries

• manufacturers of flexible pipe systems, DC pipes, substations, peak boilers, wood fired boilers, heat pumps, meters, residential adsorption chillers, heat exchangers, water treatment equipment

• contractors; expertise in horizontal drilling and water crossings

• consulting engineers

GEA Grenco heat pumps for Copenhagen Towers

HeatMatrix plastic exchanger for flue gas

Solabcool 5 kW adsorption chiller

It’s time for district heating

Groningen gas field within a few years not enough for Dutch demandProduction will also decline because of danger of earth quakes

European natural gas capital goes forDH on deep geothermal

Joint venture of city of Groningen and water utility for DH

Subsidy of 33 million euro available for 15 years of heat production from a geothermal well at 3 kilometers

Headquarters of Dutch Gasunie Original main office of Groningen University

Klaas de Jonginfo@warmtenetwerk.nl