N0. 1 / 2014 INTERNATIONAL MAGAZINE ON DISTRICT HEATING AND COOLING DBDH - direct access to district heating and cooling technology www.dbdh.dk CONTENTS 4 THE CHAIRMANS COLUMN 6 District heating - the Danish model fact or myth? 8 Aberdeen Heat & Power - a success story 12 A 25 mwth solar application for an 8 km2 university campus in the desert 14 Texas A&M University - efficiency going from good to great 17 District Energy St. Pa DEMAND MAGNA3 MAGNA3 is more than a pump. Its a circulator, a pump throttling valve and a heat energy meter, all in one reducing the need for separate pump throttling valves in the system. Offering over 150 different single and twin circulators for heating, cooling, GSHP systems and domestic hot w P4 THE CHAIRMANS COLUMN By Lars Gullev, Managing Director VEKS, and Chairman of DBDH In November 2013, the prestigious Global District Energy Climate Award was awarded for the third time this time in New York. In this edition of Hot Cool, we have chosen to focus on a number of the projects that h MAKING MODERN LIVING POSSIBLE Discover a heat exchanger for every district heating application Versatility and variety are at the core of intelligent design. Built for next generation performance and efficiency, our new range of brazed and gasketed heat exchangers covers every district heating appl P6 Large heat exchanger station supplies entire city with heat (60MW facility in Broendby Vester boiler plant, Broendby, Denmark) DISTRICT HEATING - THE DANISH MODEL FACT OR MYTH? By Peter Sonne, Senior Consultant, Grontmij In Denmark we praise ourselves over the extent of district heating syste P7 The scheme of ownership is a basis for the Danish Model. Out of the 400 district heating companies in Denmark, the majority is customer-owned. Either through a municipality ownership or based in a cooperative society. Only 10 companies of the 400 are privately owned, and only with a limited volu P8 ABERDEEN HEAT & POWER WINNER PROJECT - A SUCCESS STORY By Ian Booth, General Manager, Aberdeen Heat and Power Aberdeen Heat & Power is a true success story in every sense, said Councillor Barney Crockett, Leader of Aberdeen City Council during a visit to New York to collect a prestigious Globa P9 Stockethill Energy Centre The company has employed the services of a design consultant on all projects since 2002. The design consultant has produced project feasibility studies and has effectively mapped out the densely populated and commercialised areas within the city to develop a visionary P10 Projects and learning To date three projects have been installed. The first pilot scheme consisted of 280 flats within 4 multi-storey blocks connected to a small CHP gas-fired engine (200 kWe) with back up boilers providing peak winter heat output of approximately 300 kW. It was recognised earl P11 Following expansion of the network towards the city centre, it has been recognised that there is a larger potential for connections to commercial buildings in the non-public sector. With this in mind, the company has set up a wholly owned subsidiary company, District Energy Aberdeen Limited (DE P12 WINNER PROJECT A 25 MWth SOLAR APPLICATION FOR AN 8 KM2 UNIVERSITY CAMPUS IN THE DESERT Largest operational solar district heating plant in the world at the Platinum LEED Princess Noura University for Women (PNUW). Millennium Energy Industries has designed, engineered, procured and construct P13 With a solid background and engineering experience, identification of the customer needs for the project as well as the analysis of the given facts for the supply of domestic hot water and space heating during the 40 heating days in Riyadh were conducted and a solar supported district heating n P14 WINNER PROJECT TEXAS A&M UNIVERSITY - EFFICIENCY GOING FROM GOOD TO GREAT Winner of both the 2013 Global District Energy Climate and EPA ENERGY STAR CHP Awards HRSG(B1) manufactured by Express Integrated Technologies utilizes waste heat from gas turbine to generate 600 psi, 750oF / 400oC ste P15 Efficiency for the future In 2012, Texas A&M upgraded its aging CHP system as a major part of its campus-wide program to increase energy efficiency and reduce utility costs. Like many large university campuses, Texas A&M has co-generated power and steam for more than 100 years, since 1893. Howe P16 Additionally, Texas A&M is unique among higher education CHP operators in that power generation assets are registered with ERCOT (the Electric Reliability Council of Texas). At times when campus electrical demand is low, UES can export power to the grid while efficiently meeting campus thermal P17 WINNER PROJECT DISTRICT ENERGY ST. PAUL - MODERNIZATION AND INTEGRATION District Energy St. Paul is recognized throughout the United States as a leader in community energy, by providing reliable and efficient energy services and promoting advanced technologies that benefit our customers, the P18 The use of two thermal storage tanks as well as advanced maintenance and operational techniques enables District Cooling St. Paul to shift up to 9 MW of electric demand to offpeak hours. This has benefited its customers and the electrical grid. Today the district cooling system has more than 10 P19 District Energy St. Paul also places a high value on environmental stewardship and education and has significantly expanded our community engagement. District Energy St. Paul works with local partners to promote an educational experience highlighting the use of the systems technologies, as well P20 WINNER PROJECT SUNSTORE 4 PLANT IN MARSTAL By Per Alex Sørensen, Plan Energi, Head of Department - District Energy The purpose of the SUNSTORE concept implemented in the Danish town Marstal is to show that district heating can be produced with 100 % RES of which solar thermal can cover 50% o P21 The beginning The annual solar radiation in Denmark represents app. 200 times the amount of energy which we use yearly for heat, electricity, transport etc. With an energy source like that, we wonder why it is not utilized by many more. Up until 1994, there were only 2 district heating plants u P22 SUNSTORE 4 The overall objectives of the project are to demonstrate a SUNSTORE 4 energy concept of a large scale innovative, cost efficient, and technically reliable 100 % renewable energy supply system for a large-scale (district) heating system with an annual heating production of 28,000 MWh P23 The unique thing about the SUNSTORE concept is its flexibility The concept makes it possible: to use all types of renewable heat and waste heat, because of the storage and the heat pump (solar thermal, geothermal, biomass, waste heat from incineration, excess heat from industries). to provide P24 WINNER PROJECT TWENCE, SUPPLIER OF SUSTAINABLE ENERGY In September 2013, Twence was awarded the prestigious Global District Energy Climate Award by the International Energy Agency. This was a great honour for Twence, and Twence never could have achieved this without the excellent cooperation P25 maximum of 23 MWel. The biogas produced in the anaerobic digestion plant, which began operations in 2011, is used in two gas engines with a total capacity of 2.4 MWel. power plant. That will make it possible to integrate the smaller district heating systems with the major district heating syst P26 MEMBER NEW M EW N R BE EM M EW N R BE EM M W MEMBER NEW R NEW MEMBER N BE EM M EW N R BE EM M EW N R NEW MEMBE NEW MEMBERS OF DBDH EMBER NEW M M EW N R BE EM M EW N R BE EM W MEMBER NEW M MEMBER NE EW N R BE EM M EW N R BE EM M NEW MEMBER NEW SSM Viborg District Heating Company SSM (Skandinav P27EM EW M N R BE EM M EW N R BE EM M EW MEMBER NEW MEMBER N NEW MEMBER NEW R BE EM M EW N R BE EM M EW N NEW MEMBER EMBER NEW MEM M EW N R BE EM M EW N R BE EM MEMBER NEW M NEW MEMBERS OF DBDH MEMBER NEW M EW N R BE EM M EW N R BE EM M EW MEMBER NEW AAEN Processbio AAEN Consulting Engineers A/S P28 MEMBER COMPANY PROFILE: EKF The Danish Export Credit Agency, EKF, has provided Danish export companies guarantees worth € 10 billions. Yet, companies in the DHC industry only used less than one percent of this pool. EKF estimates that the DHC industry potentially can use up to 10 percent of E P29 To come around the rating-issue EKF has started a pilot project, in which EKF uses a different method to do the credit rating. Here the political landscape counts for more than the financial key figures. Based on this method EKF recently issued a guarantee to Danish company Grundfos for a proje P30 LIST OF MEMBERS Aaen Consulting Engineers Phone +45 8617 5055 Consulting engineers and planners www.aaenas.dk ra@aaenas.dk Dall Energy Phone +45 2987 2222 Aalborg Engineering Phone +45 9631 3950 Supplier of boilers and boiler systems Fax +45 9631 3951 ae@aalborg-engineering.dk ww P31 HOFOR Phone +45 3395 3395 Copenhagen Energy Fax +45 3395 2020 hofor@hofor.dk www.hofor.dk Ross Engineering Hydro-X Phone +45 9828 2111 Boiler water treatment Fax +45 9828 3021 info@hydro-x.dk www.hydro-x.dk Saseco Høje Taastrup Fjernvarme Phone +45 4355 3010 Municipal district h Mediegruppen 1778 Your savings add up Comparison of CO2 emissions KTon 3.0 CO2 2.5 20% 0.51 2.0 1.5 1.0 25 52% 1.06 80% 2.00 Pipe pair Steel, trad. DN: 65 Serie 2 Pipe pair w. diff. Steel, conti DN: 65 Series 2 58% 1.44 TwinPipe Steel, trad. DN: 65 Series 2 Heat loss 10 48% 1.20 Twin