The Impact on System Performance When Renovating a Multifamily Building Stock in a District Heated Region

In Sweden, 90% of multifamily buildings utilize district heat and a large portion is in need of renovation. The aim is to analyze the impact of renovating a multifamily building stock in a district heating and cooling system, in terms of primary energy savings, peak power demands, electricity demand and production, and greenhouse gas emissions on local and global levels. The study analyzes scenarios regarding measures on the building envelope, ventilation, and substitution from district heat to ground source heat pump. The results indicate improved energy performance for all scenarios, ranging from 11% to 56%. Moreover, the scenarios present a reduction of fossil fuel use and reduced peak power demand in the district heating and cooling system ranging from 1 MW to 13 MW, corresponding to 4–48 W/m2 heated building area. However, the study concludes that scenarios including a ground source heat pump generate significantly higher global greenhouse gas emissions relative to scenarios including district heating. Furthermore, in a future fossil-free district heating and cooling system, a reduction in primary energy use will lead to a local reduction of emissions along with a positive effect on global greenhouse gas emissions, outperforming measures with a ground source heat pump.

[1]  Bahram Moshfegh,et al.  Experiences from nine passive houses in Sweden – Indoor thermal environment and energy use , 2014 .

[2]  Thomas Olofsson,et al.  Assessment of renovation measures for a dwelling area - Impacts on energy efficiency and building certification , 2016 .

[3]  Alemayehu Gebremedhin The role of a paper mill in a merged district heating system , 2003 .

[4]  Alfred Voß,et al.  A Model for Energy Supply Systems Alternatives and their General Environmental Impact , 1979 .

[6]  F. Reda,et al.  Northern European nearly zero energy building concepts for apartment buildings using integrated solar technologies and dynamic occupancy profile: Focus on Finland and other Northern European countries , 2019, Applied Energy.

[7]  Sven Werner,et al.  International review of district heating and cooling , 2017 .

[8]  Mats Söderström,et al.  Assessing the climate impact of district heating systems with combined heat and power production and industrial excess heat , 2015 .

[9]  Louise Trygg,et al.  Reduction of electricity use in Swedish industry and its impact on national power supply and European CO2 emissions , 2008 .

[10]  Ghislaine M. Lawrence The social construction of technological systems: new directions in the sociology and history of technology , 1989, Medical History.

[11]  Steven Beyerlein,et al.  Review of district heating and cooling systems for a sustainable future , 2017 .

[12]  Dag Henning MODEST : an energy-system optimisation model applicable to local utilities and countries , 1997 .

[13]  Sanna Syri,et al.  Is District Heating Combined Heat and Power at Risk in the Nordic Area?—An Electricity Market Perspective , 2018 .

[14]  P. Jackman Strategic Plan 2011-2014 , 2012 .

[15]  Martin Kumar Patel,et al.  An interdisciplinary review of energy storage for communities: Challenges and perspectives , 2017 .

[16]  Tim Johansson,et al.  Development of an energy atlas for renovation of the multifamily building stock in Sweden , 2017 .

[17]  Sanna Syri,et al.  Heat pumps versus combined heat and power production as CO2 reduction measures in Finland , 2013 .

[18]  Björn G. Karlsson,et al.  Simulation and introduction of a CHP plant in a Swedish biogas system , 2013 .

[19]  Stuart A. Norman,et al.  Optimum community energy storage system for demand load shifting , 2016 .

[20]  Anna Cecilia Krook Riekkola,et al.  Assessing the development of combined heat and power generation in the EU , 2014 .

[21]  Mariagrazia Dotoli,et al.  Cooperative Distributed Control for the Energy Scheduling of Smart Homes with Shared Energy Storage and Renewable Energy Source , 2017 .

[22]  Taehoon Hong,et al.  A review on sustainable construction management strategies for monitoring, diagnosing, and retrofitting the building's dynamic energy performance: Focused on the operation and maintenance phase , 2015 .

[23]  Ambrose Dodoo,et al.  Effects of heat and electricity saving measures in district-heated multistory residential buildings , 2014 .

[24]  Sven Werner,et al.  District heating and cooling in Sweden , 2017 .

[25]  Hyo-Jin Kim,et al.  Does Combined Heat and Power Play the Role of a Bridge in Energy Transition? Evidence from a Cross-Country Analysis , 2019, Sustainability.

[26]  Ray Galvin,et al.  Economic viability in thermal retrofit policies: Learning from ten years of experience in Germany , 2013 .

[27]  Jan Akander,et al.  Comprehensive investigation on energy retrofits in eleven multi-family buildings in Sweden , 2014 .

[28]  T. Hall,et al.  The Million Homes Programme: a review of the great Swedish planning project , 2005 .

[29]  Seppo Junnila,et al.  Planning for a Low Carbon Future? Comparing Heat Pumps and Cogeneration as the Energy System Options for a New Residential Area , 2015 .

[30]  Åsa Svenfelt,et al.  Decreasing energy use in buildings by 50% by 2050 — A backcasting study using stakeholder groups , 2011 .

[31]  F. M. Meijer,et al.  Comparing European residential building stocks: performance, renovation and policy opportunities , 2009 .

[32]  Rasmus Søgaard Lund,et al.  Large combined heat and power plants in sustainable energy systems , 2015 .

[33]  Lina La Fleur,et al.  Energy Use and Perceived Indoor Environment in a Swedish Multifamily Building before and after Major Renovation , 2018 .

[34]  Rasmus Søgaard Lund,et al.  Socioeconomic potential for introducing large-scale heat pumps in district heating in Denmark , 2016 .

[35]  Sven Werner,et al.  Synthesis of recent Swedish district heating research , 2018 .

[36]  Stefan Lechtenböhmer,et al.  The potential for large-scale savings from insulating residential buildings in the EU , 2011 .

[37]  G. Sundberg,et al.  Project financing consequences on cogeneration: industrial plant and municipal utility co-operation in Sweden , 2003 .

[38]  Henk Visscher,et al.  Actual heating energy savings in thermally renovated Dutch dwellings , 2016 .

[39]  Ambrose Dodoo,et al.  Effects of energy efficiency measures in district-heated buildings on energy supply , 2018 .

[40]  Satu Paiho,et al.  An analysis of heating energy scenarios of a Finnish case district , 2017 .

[41]  Mats-Olov Olsson,et al.  Systems Approaches and Their Application: Examples from Sweden , 2006 .

[42]  Leslie G. Fishbone,et al.  Markal, a linear‐programming model for energy systems analysis: Technical description of the bnl version , 1981 .

[43]  J. Widén,et al.  Sensitivity of district heating system operation to heat demand reductions and electricity price variations: A Swedish example , 2012 .

[44]  Louise Trygg,et al.  Energy conservation measures in buildings heated by district heating – A local energy system perspective , 2010 .

[45]  Richard Loulou,et al.  Energy Technology Systems Analysis Programme , 2005 .

[46]  Bahram Moshfegh,et al.  Measured and predicted energy use and indoor climate before and after a major renovation of an apartment building in Sweden , 2017 .

[47]  Martin Morelli,et al.  Energy retrofitting of a typical old Danish multi-family building to a “nearly-zero” energy building based on experiences from a test apartment , 2012 .

[48]  J. Danielewicz,et al.  Trends of European research and development in district heating technologies , 2017 .

[49]  Magnus Åberg,et al.  Optimisation of a Swedish district heating system with reduced heat demand due to energy efficiency measures in residential buildings , 2011 .

[50]  Louise Trygg,et al.  System impact of energy efficient building refurbishment within a district heated region , 2016 .

[51]  Louise Trygg,et al.  Introduction of large-scale biofuel production in a district heating system - an opportunity for reduction of global greenhouse gas emissions , 2014 .

[52]  Bahram Moshfegh,et al.  Evaluating indoor environment of a retrofitted multi-family building with improved energy performance in Sweden , 2015 .