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ID:
166717
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| Summary/Abstract |
Heat decarbonisation is the biggest challenge facing UK energy policy. This paper presents an area-based modelling approach to heat electrification using 17,741 dwellings in the city of Newcastle upon Tyne as a case study. The presented framework has been developed so as to address local energy policy questions on the impact of domestic electrical heating options. These questions reflect significant under-researched challenges such as the quantification of peak electricity demand for heat pumps based electrification options. The presented results show that the electrification of heat at city-scale will have a substantial impact on the local electrical grid infrastructure and provide a first indication of what the potential additional mean and (winter) peak household electricity demand ranges (i.e. 59–95%. This is significantly lower than what might be ascertained from existing literature). Furthermore, the results show that emission savings will be achieved with all electrification options studied but achieving the city's ambitious decarbonisation goals will require more exploration of the urban energy landscape. The paper further underpins the significance of sub-city modelling by enabling policy makers to identify housing neighbourhoods at LV sub-station for area-based delivery. Finally, an integrated modelling approach to cope with forthcoming energy system design challenges at LV scale is suggested.
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| 2 |
ID:
176843
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| Summary/Abstract |
Chile presents an extended use of low-quality firewood for residential heating. This raises serious concerns, mainly related to health problems due to particulate emissions from firewood combustion. Several initiatives have been considered by the Chilean government to address this, including heat electrification goals. In addition, the Chilean power system is undergoing a decarbonization process. This paper analyzes the impacts of firewood heat electrification over the Chilean power system’s decarbonization process until 2044, based on a capacity expansion planning model and an estimation of firewood heat demand, to account for major changes in load shape and spatial distribution. The results show that there is a large increase in the power system total cost (ranging from 5.6% to 19.4%), with flexibility requirements becoming larger in the south. Technologies that strongly depend on local resource availability, such as wind and concentrated solar power, present changes in their systemic value, altering the need for storage and flexibility. Also, aspects such as household insulation, electrification efficiency, and smart heating technologies would significantly impact the process in terms of cost reduction and optimal generation mix. The policy implications for the Chilean power system are presented, within the broader discussion of the overall firewood problem.
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