Baseline share of district heating in 2015 and the minimum recommended level of district heating share in hre4. The district heating dh system is a cornerstone in. District heating and cooling enable efficient energy. Comparison of district heating systems used in china and. Also big heat accumulators are used widely to ensure stable and safe heat. Accordingly, individual heating should change from accounting for 82% of annual heat sector investment costs to 44%. District heating and chp have reduced denmark s co2emission by 20%. Consultant engineers 30 years years with renewable energy biomass biogas solar thermal heat pumps district heating energy planning. Thermal storage 0 10 20 30 40 50 60 70 80 90 100 1 10 100 1,000 10,000 100,000 1,000,000 electricity phs thermal gas cavern liquid fuel y y price cycle efficiency. These 10 steps and the best practice policies form the basis of the district energy in cities initiative methodology and have been adapted and tailored to different local contexts and needs during support and. The widespread use of district heating dh and combined heat and power chp is. District heating plays a key role in the danish energy system denmark is one of the most energyefficient countries in the world. Storing and balancing wind power using the district heating systems is a profound solution.
The main services available from a district heating system are space heating, hot water distribution, and space cooling. Denmark s co2emission would have been 811 million tons higher without district heating and chp. Introduction and development of the swedish district heating. Request pdf industrial excess heat for district heating in denmark excess heat is. District heating in denmark erik christiansen author. Pdf comparison of district heating systems used in china and. Microsoft powerpoint district heating in denmark erik christiansen author. However, the current dh system in china is in great need of system improvements, technology renovation. Monitoring results from large scale heat storages for.
For most district heating systems a 1year data set is collected, but for two district heating systems 5 and 6 years of data sets respectively are collected. Lowdensity residential areas have usually not been attractive markets for district heating, although there have been. District heating tariffs, economic optimisation and local. Not only does dh ensure that denmark has a sound and reliable heating supply but also greatly supports denmark in maintaining a sustainable energy sector and fulfilling the longterm energy policy targets. Decentralized substations for lowtemperature district. Regulation and planning of district heating in denmark. Dynamic performance of a district heating system in. Ebo consult as dh i europe district heating and cooling, country by country. A recent study investigated the feasibility of supplying space heating with lowtemperature district heating ltdh without compromising on comfort 2, which indicates that with. This study analyses the company fusions in the danish district heating sector, in the context of district heating consumer prices. Linear heat density in denmark and china in 2007 and 2011. It is clear that the specific cost drops significantly as the size.
In sweden, oil heating has been largely replaced by district heating and. Linking heat and electricity systems webinar 5 june 2014. District heating also known as heat networks or teleheating is a system for distributing heat generated in a centralized location through a system of insulated pipes for residential and commercial heating requirements such as space heating and water heating. Minimum available manual and frequency reserves are included for the total. District heating in canavese, milan an example of a gas engine plus heat pump district heating scheme 170 23.
Industrial excess heat for district heating in denmark request pdf. Changes in demand for heating, cooling and district heating and cooling, 20152030 33 figure 7. Denmark is one of the most energy efficient countries in the world. Larsen, risoe national laboratory, roskildedenmark dynamic performance of a. This technology is called cogenerated heat and elec. The widespread use of district heating dh and combined heating and power chp is one of the most important reasons why it has been possible to increase energy efficiency and reduce carbon emissions over several decades. District heating in the core of smart energy denmark has shown that it is possible to balance a power system with more than 50% wind power. Solar district heating ises webinar march 29, 2016 1. The recommended minimum levels take into account cost efficient. Low temperature district heating aalborg universitet. The tender documents should at least contain a description of the following. Is chpdh economic in denmark because of the colder climate, and not therefore.
Electricity generation from wind turbines is not fully integrated in the energy systems. According to, the fundamental idea of district heating is to use local fuel or heat resources that would otherwise be wasted, in order to satisfy local customer demands for heating, by using a heat distribution network of pipes as a local market place. Background report on eu heating and cooling potentials. District heating is such a concept, which is common in many countries where space heating of buildings is required, for example iceland, latvia and denmark. Danish experiences on district heating energistyrelsen. Danish co2reduction from dh and chp 0 10 20 30 40 50 60 70. Because of the high efficiency and flexibility in the district heating and combined heat and power system, it is a key element of. The increased use of district heating, in particular in the 1960s and 70s, increasingly revealed the disadvantage of steambased systems. The range bars represent the amount of district heating that is economically feasible within a 0,5% total annual energy system cost change sensitivity. District heating is good for you financially and good for society as a whole. Spare parts and services are available all day long, every day of the year.
The figure shows the specific cost for installed and conceptual btes. In denmark, the change is mainly due to a political 100% renewable energy target. Residents living in dwellings with district heating systems in denmark 20102016 number of district heating customers in finland 20072017 number of dwellings using district heating in. Publications dbdh produces a variety of publications alone and in cooperation with read more. Challenges in the small district heating area in denmark. Today, over 80% of dh is coproduced with electricity. District heating and district cooling in norway ssb. Excess heat potential in denmark from thermal processes in the. District heating in copenhagen 1 district heating has been an important part of the past development of energy. Solar district heating in the peoples republic of china.
Larsen3, bengt sunden4 1 department of energy sciences, lund university, lund, sweden, p. Denmarks co2emission would have been 811 million tons higher without district heating and chp. Apr 29, 2019 in the united kingdom, natural gas dominates the provision of heating in buildings. This report focuses on sweden, where district heating.
Integration of largescale heat pumps in the district. Chp share in the public electricity production 17% total the district heating customers are. The heat is often obtained from a cogeneration plant burning fossil fuels or biomass, but heatonly boiler stations, geothermal heating. Some countries such as denmark, sweden, norway, and lithuania apply very distinct legal frameworks in special district heating laws, while other countries such as finland, united kingdom, france, and usa just apply ordinary energy and competition laws for the district heating and cooling activities. In sweden, oil heating has been largely replaced by district heating and heat pumps.
The district heating connected load in germany is approximately. Poster session presented at cities annual conference, kgs. Denmark has for many years been known as a leading country within district heating this as the scale of district heating is huge 65% of the countrys total heat demand. Until the end of last year, the scandinavian country had seen 577 mw of solar thermal power fed into 79 district heating networks mostly run by municipalities. The share of renewable heating has shown a slight upward trend since 2003 and the variation has mostly been dependent on the proportion of fuel oil used for district heating production.
Denmarks national energy efficiency action plan neeap. Review 4th generation district heating 4gdh integrating smart thermal grids into future sustainable energy systems henrik lunda, sven wernerb, robin wiltshirec, svend svendsend, jan eric thorsene, frede hvelplunda, brian vad mathiesenf adepartment of development and planning, aalborg university, vestre havnepromenade 9, dk9000 aalborg, denmark b school of business and engineering. Seasonal storage for solar district heating iea shc solar academy task 55, march 2019 jan erik nielsen experiences from denmark planenergi consultant engineers 40 employees 35 years with renewable heating o biomass, biogas, solar heat, heat jan erik nielsen pumps, district heating. China has one of the largest district heating dh markets in the world with total district heat sales in 2011 amounting to 2,810,220 tj. Large networks include a huge amount of energy, which gives time to take actions in emergency cases. District heating is characterized by well planned and prepared service operation. Usually, a hot water distribution system in chaudesaigues in france is regarded as the first real district heating system. Solar district heating in the peoples republic of china status and development potential this publication explores the signi. Introduction and development of the swedish district. Monitoring results from large scale heat storages for district heating in denmark. About dbdh dbdh is denmarks leading district heating export organisation. Bohm, technical university of denmark, lyngbydenmark h. Converting steambased district heating systems to hot water. Denmark is also one of the most energy efficient countries in the world.
Only dh if a feasibility study documents lower consumer prices and economic benefits for dh. The district heating dh system is a cornerstone in denmarks green and efficient energy system. Background report on eu27 district heating and cooling. Aalborg universitet heat roadmap europe 4 quantifying the. The flexheat district heating plant at copenhagens nordhavn harbor emits 315 fewer tonnes per annum of co 2 than the lpg gasbased alternative. Thomas schmidt a and per alex sorensen b a solites steinbeis research institute for solar and sustainable thermal energy systems, meitnerstra. The danish district heating prices are discussed based on the statistics and the heating districts of the country are organized into categories based on price ranges. We would like to share with you a new recommendation on correct water treatment from danish district heating association the association which counts 350 district. Denmark has become a net exporter of oil and expects to remain. To realize this potential, 21,500 new district heating systems need to be established by 2050, of which 16,500 before 2035. Where district heating is not available, try to make the best use of the available alternatives, especially renewable energy. In a district heating system, heat is distributed through a network of hotwater pipes from heatsupplying.
Nevertheless, it still has great potential for further expanding its dh supply, due to rapid urbanization and the demand to improve the quality of life. Combined heat and power, heat pumps, district heating, energy systems analysis, optimisation. Path dependency in provision of domestic heating nature energy. Change in heat load profile for typical danish multistorey. District heating and chp have reduced denmarks co2emission by 20%. District heating and cooling generation mix in reference case in 2030 34. Path dependency in provision of domestic heating nature. Modeling and optimization article pdf available in frontiers in built environment 2 october 2016 with 1,931 reads how we measure reads. There are another 364 mwth in continue reading top district heating countries. Many of these, almost a half million, are district heating dh installations.
Lowering district heating temperatures impact to system performance in current and. Hot cool magazine hot cool the international district energy magazine. Abstract denmark has a longterm objective of being free of fossil fuels by 2050 with the energysupplymix for buildings being free of fossil fuels by 2035. It is my goal and hope that my analysis and conclusions can be an inspiration for the district heating sector in their pursuit for optimization of the district heating system.
The analysis uses the city of aalborg, denmark, as a case where municipalisation through. Traditional excess heat resources are combined heat and power chp plants, wastetoenergy wte plants, and industrial. Since district heating is an important substitute to electricity, the increase in the electricity price has been an important reason for the growth in the price. District heatingchp is the most important factor behind denmarks co2reduction. This has increased the focus on flexible dhchp systems using, for example, heat storage, electric boilers, heat pumps, and bypass of power turbines, to support. These factors make district heating and cooling systems most attractive in serving 1 industrial complexes, 2 densely populated urban areas, and 3 highdensity building clusters with high thermal loads. In the united kingdom, natural gas dominates the provision of heating in buildings.
District heating systems dh systems can play an important role in increasing the use of res for heating purposes and in reducing overall primary energy consumption. District heating denmark 60% of heat demand sweden 50% of heat demand about 12% of heat demands in germany and austria about 12% of heat demands in europe common in russia and china, called district energy in us. Further, the data is translated into a dkkkwh format in. Daily heat load variations in swedish district heating systems. Fast forward 40 years from the original oil crisis and district heating networks provide heat to a whopping 63% of danish households. It was therefore relevant for me to address this issue and to elaborate the consequences of this transition. A district heating system with 100% re 50% solar thermal a seasonal heat storage a heat pump district heating system consisting of 33,300 m2 solar plant 75,000 m3 storagepit heat storage 1. District heating traces its roots to the hot waterheated baths and greenhouses of the ancient roman empire. In a future energy system based on renewable energy, district heating will remain a corner stone.
Aug 20, 2014 fast forward 40 years from the original oil crisis and district heating networks provide heat to a whopping 63% of danish households. Heat supply in denmark 5 foreword very few people are likely to know that there are more than two and a half million domestic heating installations in denmark. Central solar district heating plants heller, alfred. Change in heat load profile for typical danish multi. In europe, dh systems are particularly common in sweden, finland, denmark, the baltic countries and eastern europe. Solar district heating has enjoyed increasing attention from all across europe and china, triggered by denmarks enormous growth rates in the field. Dynamic performance of a district heating system in madumvej. Seasonal storage for solar district heating iea shc solar academy task 55, march 2019 jan erik nielsen btes cost limited cost data is available for the implementation of borehole thermal energy storages. World leader in biogas reduces co2 emissions by 50,000 t annually. District energy has the potential to cover 50% of the anticipated heating demand in 2050. In areas with large shares of combined heat and power chp production, a significant. District heating chp is the most important factor behind denmark s co2reduction.