N0. 4 / 2016 INTERNATIONAL MAGAZINE ON DISTRICT HEATING AND COOLING FROM ONE GENERATION DISTRICT HEATING TO ANOTHER DBDH - direct access to district heating and cooling technology www.dbdh.dk CONTENTS 4 THE COLUMN 6 AUSTRIAN DISTRICT HEATING BUSINESS MODEL 2.0 8 DISTRICT HEATING AS PART OF A EUROPEAN ENERGY UNION 11 THE CHANGING REQUIREMENTS FOR THE DISTRICT HEATING GENERATIONS 15 SWITCHING TO 4TH-GENERATION DISTRICT HEATING IN ALBERTSLUND, DK 19 23 CAMPUS ENERGY (US AND CANAD DISTRICT HEATING FROM A-Z RELY ON 50 YEARS OF EXPERIENCE IN ALL DISTRICT HEATING APPLICATIONS 16 CHP POWER PLANT SUB-STATION BOILER HOUSE CONSUMER CONNECTIONS MAIN PUMPS DISTRIBUTION PUMPS BOILER SHUNT PUMPS PLATE HEAT EXCHANGE FLOW FILTER PUMPS PRESSURE HOLDING SYSTEM LULL HEAT PUMPS P4 THE COLUMN By Lars Gullev, Managing Director VEKS and Chairman of DBDH DISTRICT HEATING - MORE THAN 100 YEARS OF HISTORY, BUT STILL RAPIDLY DEVELOPING The first steam-based district heating systems were put in commission in the 1880s in the United States. The systems are today known as 1st G ( Save time on planning and collecting documentation with Danfoss Heat Selector 3 min is all it takes to complete your calculation The Danfoss Heat Selector is a best-in-class online selection tool that optimizes planning process for heating application experts. The Heat Selector saves time in calc P6 By Roman Geyer, Research Engineer, AIT Austrian Institute of Technology GmbH, and Ralf-Roman Schmidt, Research Engineer, AIT Austrian Institute of Technology GmbH DISTRICT HEATING FINANCING AND OWNERSHIP AUSTRIAN DISTRICT HEATING BUSINESS MODEL 2.0 DISCUSSING INNOVATIVE ELEMENTS FOR URBAN AND P7 Waste heat from data centres and industrial processes (Figure 1: Key Partnerships 1 ): For the integration of alternative heat sources into district heating networks, data centres offer a high potential especially in larger cities. In Vienna, about 1 2 new data centres per year were built in th P8 DISTRICT HEATING AS PART OF A EUROPEAN ENERGY UNION By Søren Djørup Ph.D. fellow, and Frede Hvelplund, Professor, Aalborg University District heating is not only here to stay but should expand and change in a European energy future. But it requires changes in policies and regulation to realise P9 that national distortions may result in international spill-overs as energy is traded through international interconnectors in the electricity system. Studies into individual countries thus always entail an international perspective. For example, a country study into the Danish energy taxation s P10 electricity trade (Energinet.dk 2015). This means that short distance trade finances long distance trade. The full costs associated with international long distance electricity trade are therefore not internalised in the market. The investment costs in electricity grid expansion that the financ P11 FROM ONE GENERATION DISTRICT HEATING TO ANOTHER Jan Eric Thorsen, Director, Danfoss Heating Segment Application Centre, Oddgeir Gudmundsson, Director Projects, Andre Hansen, Director Applications & Technology, Danfoss GmbH THE CHANGING REQUIREMENTS FOR THE DISTRICT HEATING GENERATIONS Introdu P12 The key characteristic of the 3rd generation DH system is the material and labor lean components applied combined with lower temperatures. The components consist of pre-insulated pipes buried directly into the ground and fixed without expansion loops, prefabricated compact substations, the use P13 Another example is an existing house area located in Sønderby/ Denmark. The area includes 75 one family houses built from 1997. Before the system renovation, the houses were equipped with domestic hot water storage tanks which were not adequate for low temperature operation. The renovation incl P14 In the longer run, building energy renovations, like replacement of windows and typically insulation of ceilings, lead to a reduced energy consumption, allowing reduction of the DH net temperatures from the perspective of energy capacity. Anyhow, low temperature DH focuses on the general temper P15 FROM ONE GENERATION DISTRICT HEATING TO ANOTHER By Construction, Environment and Energy Director Hans-Henrik Høg, Municipality of Albertslund and Chief Project Manager Theodor Møller Moos, COWI A/S SWITCHING TO 4TH-GENERATION DISTRICT HEATING IN ALBERTSLUND, DK The residence is made ready for P16 District heating is vital for the future District heating will be a key element of Albertslunds energy systems in the future too, but fossil fuels are being phased out and green energy/electricity, particularly from wind turbines, is taking over. The future will be 4th generation DH: We will s Over the next ten years, these initiatives in the area of district heating are intended to back up the efforts to create a modern, convenient, sustainable and smart suburb. They should also make it possible for Albertslund to go on meeting the statutory energy-saving requirements, and to save at lea P18 Smart Grid. A new metering strategy with remote-read meter data in conjunction with behaviour-regulating tariffs, operational optimisation among users and detailed analyses of consumption. Take-over and operation of customers connection units, so remote-read data can be used to monitor and opt P19 FROM ONE GENERATION DISTRICT HEATING TO ANOTHER By Pernille M. Overbye, Managing Director, District Energy Systems Canada, Ramboll CAMPUS ENERGY (US AND CANADA) ENERGY EFFICIENCY AND STEAM TO HOT WATER CONVERSIONS Universities and colleges throughout North America are increasingly looking a P20 E.g. Stanford installed over 32 km (20 miles) of hot water piping and converted 155 buildings to receive hot water instead of steam in less than three years, from autumn 2012 to spring 2015. Canada is not holding back Already in 2011, The University of British Columbia in Canada, commonly refer P21 The Davis Campus in Brampton in principal already has a relatively efficient hot water-based district heating system, but it is heavily interconnected between primary and secondary systems and operates at a fairly low delta T. Most Davis buildings are connected to this system. Upgrades on the D P22 Figure 4 - Illustration of district heating costs as a function of pipe dimension (source Ramboll). Piping installation: best of both continents In designing the Sheridan distribution networks, Ramboll applied its extensive experience in Denmark with the installation of pre-insulated district P23 STEAM CONVERSION IN COPENHAGEN FROM ONE GENERATION DISTRICT HEATING TO ANOTHER By René Thiemke, M.Sc. Project manager and responsible for planning the steam conversion project in HOFOR (DK21) HOFOR Copenhagens utility company - has an ambition to supply Copenhagen with district heating base P24 By converting all steam customers, it is necessary to ensure an extra production capacity of 300 MW at the CHP plants in the greater Copenhagen area. To ensure this, reconstruction of a DHC plant for peak load demands and CHP plants for base load demands have been and are still going on. Due to P25 the customer, for a special reason wishes to have the steam pipes in the ground removed, HOFOR will do this also free of charge, but only by appointment. 2015 2015 2017 2014 Key figures Termination of a steam supply system in the same magnitude as in Copenhagen has never been done anywhere el EW MEMBER NEW N R BE EM M EW N R BE EM M EW MBER N BERS NEW M EM M EW N RS BE P26 EM M EW N RS MEMBERS NEW MEMBE NEW MEM RS BE EM M EW N RS BE EM M EW BERS NEW MEMBERS N BERS NE EM M EW N RS BE EM S M EW N RS W MEMBERS NEW MEMBE H D B D F O S R E B M E M W E N SALLING PLAST PLANENERGI Salling Pl MEMBERS NEW EW N RS BE EM M EW N RS BE MEMBERS NEW MEM MEM RS NEW P27 BE EM M EW N RS BE EM M EW N MBER NEW MEMBERS MEMBERS N EW N RS BE EM M EW N RS BE EW MEMBERS NEW MEM SILHORKO-EUROWATER FREDERIKSHAVN UTILITY SILHORKO-EUROWATER is a leading Danish/European manufacturer specialized in water tr P28 MEMBER COMPANY PROFILE IFU Photo: Arcon-Sunmark The Investment Fund for Developing Countries (IFU) has extensive experience and widespread presence when it comes to promoting Danish commercial interest projects abroad. In the course of nearly 50 years, IFU has been involved in over 1,200 proj P29 The programme sets up the right conditions for risk sharing in project development with Danish companies: IFU has created this programme in order to address a request from the Danish business community. By sharing the risk linked to the development of investment projects and with a preliminary P30 LIST OF MEMBERS Aaen Consulting Engineers Arcon-Sunmark Dall Energy EKF Phone +45 8617 5055 www.aaenas.dk ra@aaenas.dk Phone +45 9839 1477 www.arcon.dk Phone +45 2987 2222 info@dallenergy.com www.dallenergy.com Phone +45 3546 2600 ekf@ekf.dk www.ekf.dk Aalborg Engineering Assens Fjern P31 Forsyning Helsingør HOFOR Phone +45 4840 5050 pkm@fh.dk www.fh.dk Phone +45 3395 3395 Phone +45 2120 7220 Phone +45 7594 0711 hofor@hofor.dk info@oe3i.dk tvis@tvis.net www.hofor.dk www.oe3i.dk www.tvis.net Frederiksberg Forsyning Hydro-X PlanEnergi Consulting engineers and planners Trans YOUR PARTNER IN DISTRICT ENERGY SOLUTIONS isoplus Piping Systems is a leading manufacturer within pre-insulated piping systems with low heat loss for district energy solutions. Low heat loss guarantees low running costs throughout the entire service life of your pipe network. The environment also b