Natural night ventilation; Mechanical night ventilation; Overheating; Microclimates; Thermal-energy simulations
Abstract :
[en] With increasing urbanization, overheating intensifies, resulting in a greater risk of indoor overheating in commercial buildings, which already have high internal gains. The impact of urban climate on the cooling energy needs of buildings has been extensively researched. However, the building performance during extreme heat events needs further investigation to reduce the energy demand from the grid during critical events and to ensure an acceptable indoor thermal environment. Here, a comparative assessment approach for natural and mechanical night ventilation performance to reduce indoor overheating and energy needs of a nearly zero-energy office building in Brussels, Belgium, was evaluated for the heat wave and non-heat wave periods in urban and rural microclimates, using calibrated thermal-energy simulations. The analysis indicated that active cooling with natural night ventilation was more effective during heat waves than other cooling strategies. In addition, natural night ventilation was also effective in maintaining safer levels of heat index values in the reference office compared to other strategies. Natural night ventilation reduced overheating by 0.39 °C in the urban microclimate and 0.50 °C in the rural microclimate relative to the Baseline. Considering the cooling energy use, natural night ventilation had no significant impact. In contrast, mechanical night ventilation increased energy use by 0.54 kWh/m2 in urban microclimate and 0.40 kWh/m2 in rural microclimate due to prolonged ventilation fan operation in the reference office building. The presented findings in the paper lead to the formulation of design guidelines, recommendations for future practices and identifying needs for further research.
Research center :
Sustainable Building Design Lab
Disciplines :
Civil engineering Architecture
Author, co-author :
Amaripadath, Deepak ; Université de Liège - ULiège > Urban and Environmental Engineering
Paolini, Riccardo
Sailor, David J.
Attia, Shady ; Université de Liège - ULiège > Département ArGEnCo > Techniques de construction des bâtiments
Language :
English
Title :
Comparative assessment of night ventilation performance in a nearly zero-energy office building during heat waves in Brussels
SPW - Service Public de Wallonie [BE] MK Engineering [BE]
Funding number :
847587
Funding text :
The authors declare that financial support was provided by the Walloon Public Service and MK Engineering, Belgium. The funders had no role in the study design, in the collection, analyses, or interpretation of data, in the writing of the manuscript, or in the decision to publish the results.
Yamashita, S., Some studies of heat Island in Japan. Geogr. Rev. Jpn. B 61:1 (1988), 1–13, 10.4157/grj1984b.61.1.
Santamouris, M., Recent progress on urban overheating and heat island research. Integrated assessment of the energy, environmental, vulnerability and health impact. Synergies with the global climate change. Energy Build., 207, Jan. 2020, 109482, 10.1016/j.enbuild.2019.109482.
Tewari, M., Salamanca, F., Martilli, A., Treinish, L., Mahalov, A., Impacts of projected urban expansion and global warming on cooling energy demand over a semiarid region. Atmos. Sci. Lett. 18:11 (Nov. 2017), 419–426, 10.1002/asl.784.
Oke, T.R., Johnson, G.T., Steyn, D.G., Watson, I.D., Simulation of surface urban heat islands under 'ideal' conditions at night part 2: diagnosis of causation. Boundary-Layer Meteorol. 56:4 (Sep. 1991), 339–358, 10.1007/BF00119211.
Santamouris, M., Analyzing the heat island magnitude and characteristics in one hundred Asian and Australian cities and regions. Sci. Total Environ. 512:513 (Apr. 2015), 582–598, 10.1016/j.scitotenv.2015.01.060.
Santamouris, M., Innovating to zero the building sector in Europe: minimising the energy consumption, eradication of the energy poverty and mitigating the local climate change. Sol. Energy 128 (Apr. 2016), 61–94, 10.1016/j.solener.2016.01.021.
Santamouris, M., et al. Heat mitigation technologies can improve sustainability in cities. An holistic experimental and numerical impact assessment of urban overheating and related heat mitigation strategies on energy consumption, indoor comfort, vulnerability and heat-related mortality and morbidity in cities. Energy Build., 217, Jun. 2020, 110002, 10.1016/j.enbuild.2020.110002.
Paolini, R., et al. The hygrothermal performance of residential buildings at urban and rural sites: sensible and latent energy loads and indoor environmental conditions. Energy Build. 152 (Oct. 2017), 792–803, 10.1016/j.enbuild.2016.11.018.
Heaviside, C., Macintyre, H., Vardoulakis, S., The urban heat Island: implications for health in a changing environment. Current Environmental Health Reports 4:3 (Sep. 2017), 296–305, 10.1007/s40572-017-0150-3.
Artmann, N., Jensen, R.L., Manz, H., Heiselberg, P., Experimental investigation of heat transfer during night-time ventilation. Energy Build. 42:3 (Mar. 2010), 366–374, 10.1016/j.enbuild.2009.10.003.
Artmann, N., Manz, H., Heiselberg, P., Parameter study on performance of building cooling by night-time ventilation. Renew. Energy 33:12 (Dec. 2008), 2589–2598, 10.1016/j.renene.2008.02.025.
Breesch, H., Janssens, A., Reliable design of natural night ventilation using building simulation. Thermal Performance of the Exterior Envelopes of Whole Buildings X, 2007, Clearwater Beach, FL, USA.
Breesch, H., Descheemaeker, K., Janssens, A., Willems, L., Evaluation of natural ventilation systems in a landscaped office. 21st International Conference Passive and Low Energy Architecture (PLEA), 2004 Eindhoven, The Netherlands.
Li, X.-X., Huang, K.-L., Feng, G.-H., Li, W.-Y., Wei, J.-X., Night ventilation scheme optimization for an Ultra-low energy consumption building in Shenyang, China. Energy Rep. 8 (Nov. 2022), 8426–8436, 10.1016/j.egyr.2022.06.059.
Kuczyński, T., Staszczuk, A., Gortych, M., Stryjski, R., Effect of thermal mass, night ventilation and window shading on summer thermal comfort of buildings in a temperate climate. Build. Environ., 204, Oct. 2021, 108126, 10.1016/j.buildenv.2021.108126.
Mhuireach, G.Á., et al. Lessons learned from implementing night ventilation of mass in a next-generation smart building. Energy Build., 207, Jan. 2020, 109547, 10.1016/j.enbuild.2019.109547.
Shi, D., Gao, Y., Zeng, P., Li, B., Shen, P., Zhuang, C., Climate adaptive optimization of green roofs and natural night ventilation for lifespan energy performance improvement in office buildings. Build. Environ., 223, Sep. 2022, 109505, 10.1016/j.buildenv.2022.109505.
Guo, R., et al. Experimental investigation of convective heat transfer for night ventilation in case of mixing ventilation. Build. Environ., 193, Apr. 2021, 107670, 10.1016/j.buildenv.2021.107670.
Breesch, H., Bossaer, A., Janssens, A., Passive cooling in a low-energy office building. Sol. Energy 79:6 (Dec. 2005), 682–696, 10.1016/j.solener.2004.12.002.
Wang, Y., Zhao, F.Y., Kuckelkorn, J., Li, X.H., Wang, H.Q., Indoor air environment and night cooling energy efficiency of a Southern German passive public school building operated by the heat recovery air conditioning unit. Energy Build. 81 (Oct. 2014), 9–17, 10.1016/j.enbuild.2014.06.008.
Heijmans, N., Wouters, P., Pilot study report: probe, Limelette, Belgium. Heiselberg, P., (eds.) Principles of Hybrid Ventilation, 2002, Aalborg University, Aalborg, Denmark Available: https://iea-ebc.org/Data/publications/EBC_Annex_35_Principles_of_H_V.pdf.
Guo, R., Hu, Y., Liu, M., Heiselberg, P., Influence of design parameters on the night ventilation performance in office buildings based on sensitivity analysis. Sustain. Cities Soc., 50, Oct. 2019, 101661, 10.1016/j.scs.2019.101661.
Kolokotroni, M., Aronis, A., Cooling-energy reduction in air-conditioned offices by using night ventilation. Appl. Energy 63:4 (Aug. 1999), 241–253, 10.1016/S0306-2619(99)00031-8.
Geros, V., Santamouris, M., Tsangrasoulis, A., Guarracino, G., Experimental evaluation of night ventilation phenomena. Energy Build. 29:2 (Jan. 1999), 141–154, 10.1016/S0378-7788(98)00056-5.
Guo, R., Heiselberg, P., Hu, Y., Zhang, C., Vasilevskis, S., Optimization of night ventilation performance in office buildings in a cold climate. Energy Build., 225, Oct. 2020, 110319, 10.1016/j.enbuild.2020.110319.
Santamouris, M., Night Ventilation Strategies. 2004, Air Infiltration and Ventilation Centre, INIVE EEIG, Brussels, Belgium [Online]. Available: https://www.aivc.org/sites/default/files/members_area/medias/pdf/VIP/VIP04.Night%20ventilation.pdf. (Accessed 18 November 2022)
Santamouris, M., Sfakianaki, A., Pavlou, K., On the efficiency of night ventilation techniques applied to residential buildings. Energy Build. 42:8 (Aug. 2010), 1309–1313, 10.1016/j.enbuild.2010.02.024.
Guo, R., Hu, Y., Heiselberg, P., Johra, H., Zhang, C., Peng, P., Simulation and optimization of night cooling with diffuse ceiling ventilation and mixing ventilation in a cold climate. Renew. Energy 179 (Dec. 2021), 488–501, 10.1016/j.renene.2021.07.077.
Kolokotroni, M., Webb, B.C., Hayes, S.D., Summer cooling with night ventilation for office buildings in moderate climates. Energy Build. 27:3 (Jun. 1998), 231–237, 10.1016/S0378-7788(97)00048-0.
Geros, V., Santamouris, M., Karatasou, S., Tsangrassoulis, A., Papanikolaou, N., On the cooling potential of night ventilation techniques in the urban environment. Energy Build. 37:3 (Mar. 2005), 243–257, 10.1016/j.enbuild.2004.06.024.
Yang, L., Li, Y., Cooling load reduction by using thermal mass and night ventilation. Energy Build. 40:11 (Jan. 2008), 2052–2058, 10.1016/j.enbuild.2008.05.014.
Guo, R., et al. Optimization of cool roof and night ventilation in office buildings: a case study in Xiamen, China. Renew. Energy 147 (Mar. 2020), 2279–2294, 10.1016/j.renene.2019.10.032.
Kolokotroni, M., Ren, X., Davies, M., Mavrogianni, A., London's urban heat island: impact on current and future energy consumption in office buildings. Energy Build. 47 (Apr. 2012), 302–311, 10.1016/j.enbuild.2011.12.019.
Breesch, H., Janssens, A., Performance evaluation of passive cooling in office buildings based on uncertainty and sensitivity analysis. Sol. Energy 84:8 (Aug. 2010), 1453–1467, 10.1016/j.solener.2010.05.008.
Kolokotroni, M., Giannitsaris, I., Watkins, R., The effect of the London urban heat island on building summer cooling demand and night ventilation strategies. Sol. Energy 80:4 (Apr. 2006), 383–392, 10.1016/j.solener.2005.03.010.
Pfafferott, J., Herkel, S., Wambsganß, M., Design, monitoring and evaluation of a low energy office building with passive cooling by night ventilation. Energy Build. 36:5 (May 2004), 455–465, 10.1016/j.enbuild.2004.01.041.
Pfafferott, J., Herkel, S., Jäschke, M., Design of passive cooling by night ventilation: evaluation of a parametric model and building simulation with measurements. Energy Build. 35:11 (Dec. 2003), 1129–1143, 10.1016/j.enbuild.2003.09.005.
Heracleous, C., Michael, A., Assessment of overheating risk and the impact of natural ventilation in educational buildings of Southern Europe under current and future climatic conditions. Energy 165 (Dec. 2018), 1228–1239, 10.1016/j.energy.2018.10.051.
Oke, T.R., The heat island of the urban boundary layer: characteristics, causes and effects. Cermak, J.E., Davenport, A.G., Plate, E.J., Viegas, D.X., (eds.) Wind Climate in Cities, 1995, Springer Netherlands, Dordrecht, 81–107, 10.1007/978-94-017-3686-2_5.
Salimi, S., Estrella Guillén, E., Samuelson, H., Exceedance Degree-Hours: a new method for assessing long-term thermal conditions. Indoor Air 31:6 (Nov. 2021), 2296–2311, 10.1111/ina.12855.
Attia, S., Canonge, T., Popineau, M., Cuchet, M., Developing a benchmark model for renovated, nearly zero-energy, terraced dwellings. Appl. Energy, 306, Jan. 2022, 118128, 10.1016/j.apenergy.2021.118128.
Sheng, M., Reiner, M., Sun, K., Hong, T., Assessing thermal resilience of an assisted living facility during heat waves and cold snaps with power outages. Build. Environ., 230, Feb. 2023, 110001, 10.1016/j.buildenv.2023.110001.
Hamdy, M., Carlucci, S., Hoes, P.J., Hensen, J.L.M., The impact of climate change on the overheating risk in dwellings - a Dutch case study. Build. Environ. 122 (Sep. 2017), 307–323, 10.1016/j.buildenv.2017.06.031.
Amaripadath, D., et al. Climate change sensitive sizing and design for nearly zero-energy office building systems in Brussels. Energy Build., 286, 2023, 112971, 10.1016/j.enbuild.2023.112971.
ANSI/ASHRAE. ASHRAE Standard 169: Climatic Data for Building Design Standards. 2013, American Society of Heating, Refrigerating and Air Conditioning Engineers, Atlanta, GA, USA.
Rahif, R., Amaripadath, D., Attia, S., Review on time-integrated overheating evaluation methods for residential buildings in temperate climates of Europe. Energy Build., 252, Dec. 2021, 111463, 10.1016/j.enbuild.2021.111463.
Davis Instruments, User Manual – Integrated Sensor Suite. 2022, Davis Instruments, Hayward, CA, USA [Online]. Available: https://cdn.shopify.com/s/files/1/0515/5992/3873/files/07395.333_VP2_ISS_Manual_RevM_web.pdf?v=1661460996. (Accessed 18 January 2023)
Ouzeau, G., et al. Heat waves analysis over France in present and future climate: application of a new method on the EURO-CORDEX ensemble. Climate Services 4 (Dec. 2016), 1–12, 10.1016/j.cliser.2016.09.002.
Machard, A., et al. A methodology for assembling future weather files including heatwaves for building thermal simulations from the European Coordinated Regional Downscaling Experiment (EURO-CORDEX) climate data. Energies, 13(13), 2020, 10.3390/en13133424.
Joshi, M.Y., Amaripadath, D., Machard, A., Attia, S., Heatwaves Identification Classification and Visualisation with python: v.1.0.0. 2022, Zenodo, 10.5281/zenodo.7326894.
Machard, A., AMachard/Assembling-Future-Weather-Files-Including-heatwaves: v1.0.0. 2022, Zenodo, 10.5281/zenodo.7300024.
Saeed Khan, H., Paolini, R., Caccetta, P., Santamouris, M., On the combined impact of local, regional, and global climatic changes on the urban energy performance and indoor thermal comfort—the energy potential of adaptation measures. Energy Build., 267, Jul. 2022, 112152, 10.1016/j.enbuild.2022.112152.
Gagge, A.P., Nishi, Y., Gonzalez, R., Standard effective temperature - a single temperature index of temperature sensation and thermal discomfort. CIB Commission W45 Symposium, 1972 London, UK.
ANSI/ASHRAE. ASHRAE Standard 55: Thermal Environmental Conditions for Human Occupancy. 2020, American Society of Heating, Refrigerating and Air Conditioning Engineers, Atlanta, GA, USA.
ANSI/ASHRAE. ASHRAE Handbook - Fundamentals. 2009, American Society of Heating, Refrigerating and Air Conditioning Engineers, Atlanta, GA, USA.
ISO, ISO 17772-1. Energy Performance of Buildings – Indoor Environmental Quality. Part 1: Indoor Environmental Input Parameters for the Design and Assessment of Energy Performance in Buildings. 2017, International Standards Organization, Geneva, Switzerland.
CIBSE, CIBSE TM52. The Limits of Thermal Comfort: Avoiding Overheating in European Buildings. 2013, Chartered Institution of Building Services Engineers, London, UK.
Steadman, R.G., The assessment of sultriness. part I: a temperature-humidity index based on human physiology and Clothing Science. J. Appl. Meteorol. 18:7 (1979), 861–873.
Luo, X., Hong, T., Sun, K., Simulating thermal resilience of buildings and their influence by urban microclimate using EnergyPlus. IBPSA Building Simulation Conference, 2021, Bruges, Belgium, 10.26868/25222708.2021.30174.
Metzger, K.B., Ito, K., Matte, T.D., Summer heat and mortality in New York City: how hot is too hot?. Environ. Health Perspect. 118:1 (2010), 80–86, 10.1289/ehp.0900906.
CEN. EN 16798-1: Energy Performance of Buildings - Ventilation for Buildings - Indoor Environmental Input Parameters for Design and Assessment of Energy Performance of Buildings Addressing Indoor Air Quality, Thermal Environment, Lighting and Acoustics. 2019, European Committee for Standardization, Brussels, Belgium.
Carlier, M., Nearly Zero-Energy Building Definitions in Selected Countries. Master Thesis, Jul. 2016, Ghent University, Ghent, Belgium [Online]. Available: www.libstore.ugent.be/fulltxt/RUG01/002/301/108/RUG01-002301108_2016_0001_AC.pdf.
IBGE, “Performance Energétique des Bâtiments. Guide des exigences et des procédures de la 960 réglementation Travaux PEB en Région de Bruxelles Capitale. 2017 Brussels, Belgium.
Amaripadath, D., Velickovic, M., Attia, S., Performance evaluation of a nearly zero-energy office building in temperate oceanic climate based on field measurements. Energies, 15(18), 2022, 10.3390/en15186755.
Performance Énergétique des Bâtiments, “La performance énergétique des bâtiments - La PEB, une réglementation à 3 volets,” Environnement Brussels, Belgium. [Online]. Avaiable: www.environn ement.brussels/thematiques/batiment-et-energie/obligations/la-performance-energetique-des-batiments-peb. (Accessed 25 February 2022)
Hamdy, M., Sirén, K., Attia, S., Impact of financial assumptions on the cost optimality towards nearly zero energy buildings – a case study. Energy Build. 153 (2017), 421–438, 10.1016/j.enbuild.2017.08.018.
Attia, S., Shadmanfar, N., Ricci, F., Developing two benchmark models for nearly zero energy schools. Appl. Energy, 263, 2020, 114614, 10.1016/j.apenergy.2020.114614.
ANSI/ASHRAE. ASHRAE Guideline 14: Measurement of Energy, Demand, and Water Savings. 2014, American Society of Heating, Refrigerating and Air Conditioning Engineers, Atlanta, GA, USA.
Bakhtiari, H., Akander, J., Cehlin, M., Hayati, A., On the performance of night ventilation in a historic office building in Nordic climate. Energies, 13(16), Aug. 2020, 4159, 10.3390/en13164159.
Rumsey, P., Le Garrec, J., Levasseur, A., How building decarbonization can transform HVAC. ASHRAE J. 63:9 (Sep. 2021), 14–27.
Dodd, N., Donatello, S., Cordella, M., Level(s) Indicator 4.1: Indoor Air Quality. 2020, JRC Technical reports, European Commission, Brussels, Belgium [Online]. Available: https://susproc.jrc.ec.europa.eu/product-bureau/sites/default/files/2020-10/20201013%20New%20Level(s)%20documentation_Indicator%204.1_Publication%20v1.0.pdf. (Accessed 2 December 2022)
O'Donnavan, A., et al. “Ventilative Cooling Design Guide,” Venticool. 2022, Aalborg University, Aalborg, Denmark [Online]. Available: https://venticool.eu/wp-content/uploads/2016/11/VC-Design-Guide-EBC-Annex-62-March-2018.pdf. (Accessed 4 December 2022)
Mathur, U., Damle, R., Impact of air infiltration rate on the thermal transmittance value of building envelope. J. Build. Eng., 40, Aug. 2021, 102302, 10.1016/j.jobe.2021.102302.
Younes, C., Shdid, C.A., Bitsuamlak, G., Air infiltration through building envelopes: a Review. J. Build. Phys. 35:3 (2011), 267–302, 10.1177/1744259111423085.
ISO. ISO 15927-2: Hygrothermal Performance of Buildings - Calculation and Presentation of Climatic Data - Part 2: Hourly Data for Design Cooling Load. 2009, International Standards Organization, Geneva, Switzerland.
Żuławińska, J., Wet Bulb Calculator. 2022, Omni Calculator [online]. Available: www.omnicalculator.com/physics/wet-bulb. (Accessed 17 March 2022)
Vecellio, D.J., Wolf, S.T., Cottle, R.M., Kenney, W.L., Evaluating the 35°C wet-bulb temperature adaptability threshold for young, healthy subjects (PSU HEAT Project). J. Appl. Physiol. 132:2 (Feb. 2022), 340–345, 10.1152/japplphysiol.00738.2021.
Ramponi, R., Gaetani, I., Angelotti, A., Influence of the urban environment on the effectiveness of natural night-ventilation of an office building. Energy Build. 78 (Aug. 2014), 25–34, 10.1016/j.enbuild.2014.04.001.
Peters, G.P., et al. The challenge to keep global warming below 2 °C. Nat. Clim. Change 3:1 (Jan. 2013), 4–6, 10.1038/nclimate1783.
Hansen, J., Sato, M., Ruedy, R., Lacis, A., Oinas, V., Global warming in the twenty-first century: an alternative scenario. Proc. Natl. Acad. Sci. USA 97:18 (Aug. 2000), 9875–9880, 10.1073/pnas.170278997.
Folkerts, M.A., et al. Long term adaptation to heat stress: shifts in the minimum mortality temperature in The Netherlands. Front. Physiol., 11, 2020, 10.3389/fphys.2020.00225.
Périard, J.D., Racinais, S., Sawka, M.N., Adaptations and mechanisms of human heat acclimation: applications for competitive athletes and sports. Scand. J. Med. Sci. Sports 25 (Jun. 2015), 20–38, 10.1111/sms.12408.
Hatvani-Kovacs, G., Belusko, M., Pockett, J., Boland, J., Heat stress-resistant building design in the Australian context. Energy Build. 158 (Jan. 2018), 290–299, 10.1016/j.enbuild.2017.10.025.
Amaripadath, D., Rahif, R., Velickovic, M., Attia, S., A systematic review on role of humidity as an indoor thermal comfort parameter in humid climates. J. Build. Eng., 68, 2023, 106039, 10.1016/j.jobe.2023.106039.
Hong, T., Xu, Y., Sun, K., Zhang, W., Luo, X., Hooper, B., Urban microclimate and its impact on building performance: a case study of San Francisco. Urban Clim., 38, Jul. 2021, 100871, 10.1016/j.uclim.2021.100871.
Baniassadi, A., Sailor, D.J., Krayenhoff, E.S., Broadbent, A.M., Georgescu, M., Passive survivability of buildings under changing urban climates across eight US cities. Environ. Res. Lett., 14(7), Jul. 2019, 074028, 10.1088/1748-9326/ab28ba.
EPA. Heat Island Impacts. [Online]. Available:, 2022, United States Environmental Protection Agency, Washington DC, USA https://www.epa.gov/heatislands/heat-island-impacts#_ftn1. (Accessed 4 January 2023)
Sakka, A., Santamouris, M., Livada, I., Nicol, F., Wilson, M., On the thermal performance of low income housing during heat waves. Energy Build. 49 (Jun. 2012), 69–77, 10.1016/j.enbuild.2012.01.023.
O'Lenick, C.R., Wilhelmi, O.V., Michael, R., Hayden, M.H., Baniassadi, A., Wiedinmyer, C., Monaghan, A.J., Crank, P.J., Sailor, D.J., Urban heat and air pollution: a framework for integrating population vulnerability and indoor exposure in health risk analyses. Sci. Total Environ. 660 (Apr. 2019), 715–723, 10.1016/j.scitotenv.2019.01.002.
Maxwell, K., et al. Built Environment, urban systems, and cities. Impacts, Risks, and Adaptation in the United States: Fourth National Climate Assessment, II, 2018, US Global Change Research Program, Washington DC, 438–478, 10.7930/NCA4.2018.CH11.
Zamuda, C., et al. Energy supply, delivery, and demand. Impacts, Risks, and Adaptation in the United States: Fourth National Climate Assessment, II, 2018, U.S. Global Change Research Program, Washington DC, 174–201, 10.7930/NCA4.2018.CH4.
Rajput, M., et al. Heat exposure during a power outage: a simulation study of residences across the Metro Phoenix area. Energy Build., 259, Mar. 2022, 111605, 10.1016/j.enbuild.2021.111605.
Stone, B. Jr., et al. Climate change and infrastructure risk: indoor heat exposure during a concurrent heat wave and blackout event in Phoenix, Arizona. Urban Clim., 36, Mar. 2021, 100787, 10.1016/j.uclim.2021.100787.
Stone, B. Jr., et al. Compound climate and infrastructure events: how electrical grid failure alters heat wave risk. Environ. Sci. Technol. 55:10 (May 2021), 6957–6964, 10.1021/acs.est.1c00024.
Legal Information Institute. 10 CFR § 431.97 - energy efficiency standards and their compliance dates. Cornell Law School, NY, USA. [Online]. Available https://www.law.cornell.edu/cfr/text/10/431.97#fn1_tbl2. (Accessed 12 December 2022)
