Estimates of the impact of extreme heat events on cooling energy demand in Hong Kong

Morakinyo, Tobi Eniolu; Ren, Chao; Shi, Yuan; Lau, Kevin Ka-Lun; Tong, Hang Wai; Choy, Chun Wing; Ng, Edward

doi:10.1016/j.renene.2019.04.077

Cited by 57 publications

(16 citation statements)

References 33 publications

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“…Increases in cooling demand also depend strongly on socio-economic development such as the affordability of space cooling, energy prices, building stock and adaptation practices 74,82,83 . Furthermore, climate extremes are anticipated to escalate energy demands [84][85][86] . Extreme weather events, both heatwaves and cold spells, can test system reliability by driving energy demand to its limits, for example, for cooling or heating, respectively 13 .…”

Section: Impacts On Energy Systemsmentioning

confidence: 99%

“…Expenditure on heating and cooling has been indicated to vary regionally: net expenditure will decrease in regions where heating demands currently dominate and will increase in areas where greater demand for space cooling is currently required 72,74,81,86 . The expected change of the frequency and strength of climate extremes as well as changes in variability can affect costs of energy in general (investment or consumption) and associated critical infrastructures in particular 27,84,85,[97][98][99][100][101] .…”

Section: Impacts On Energy Systemsmentioning

confidence: 99%

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Impacts of climate change on energy systems in global and regional scenarios

et al. 2020

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Although our knowledge of climate change impacts on energy systems has increased substantially over the past few decades, there remains a lack of comprehensive overview of impacts across spatial scales. Here, we analyse results of 220 studies projecting climate impacts on energy systems globally and at the regional scale. Globally, a potential increase in cooling demand and decrease in heating demand can be anticipated, in contrast to slight decreases in hydropower and thermal energy capacity. Impacts at the regional scale are more mixed and relatively uncertain across regions, but strongest impacts are reported for South Asia and Latin America. Our assessment shows that climate impacts on energy systems at regional and global scales are uncertain due partly to the wide range of methods and non-harmonized datasets used. For a comprehensive assessment of climate impacts on energy, we propose a consistent multi-model assessment framework to support regional-to-global-scale energy planning.

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Section: Impacts On Energy Systemsmentioning

confidence: 99%

Section: Impacts On Energy Systemsmentioning

confidence: 99%

Impacts of climate change on energy systems in global and regional scenarios

et al. 2020

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“…Morakinyo et al [49] studied the spatial pattern of CDD on a typical normal and extremely hot summer day using OCK geospatial mapping technique. Results revealed reasonable predictability of city-wide CDD with the OCK method, which uses two covariables: "elevation of the weather station" and "building volume density within the 1000 m radius neighboring area".…”

Section: Geostatistical Techniquesmentioning

confidence: 99%

Heating and Cooling Degree-Days Climate Change Projections for Portugal

2021

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Climate change is expected to influence cooling and heating energy demand of residential buildings and affect overall thermal comfort. Towards this end, the heating (HDD) and cooling (CDD) degree-days along with HDD + CDD were computed from an ensemble of seven high-resolution bias-corrected simulations attained from EURO-CORDEX under two Representative Concentration Pathways (RCP4.5 and RCP8.5). These three indicators were analyzed for 1971–2000 (from E-OBS) and 2011–2040, and 2041–2070, under both RCPs. Results predict a decrease in HDDs most significant under RCP8.5. Conversely, it is projected an increase of CDD values for both scenarios. The decrease in HDDs is projected to be higher than the increase in CDDs hinting to an increase in the energy demand to cool internal environments in Portugal. Statistically significant linear CDD trends were only found for 2041–2070 under RCP4.5. Towards 2070, higher(lower) CDD (HDD and HDD + CDD) anomaly amplitudes are depicted, mainly under RCP8.5. Within the five NUTS II

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“…The increasingly extreme heat events, i.e. heatwaves, are expected to further increase the cooling demand (Morakinyo et al, 2019), thermal discomfort and health risk (Salata et al, 2017). Therefore, the better understanding the interactions between the building energy use and the associated anthropogenic heat with outdoor urban climate is essential in developing policy and technology to mitigate building induced heat emissions and environmental burden, and cooling the cities (Degirmenci, Desouza, Fieuw, Watson & Yigitcanlar, 2021).…”

Section: Introductionmentioning

confidence: 99%