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Monie, S., Nilsson, A. & Åberg, M. (2019). Electricity balancing capacity, emissions, and cost comparison of three storage-based local energy systems for variable power generation. In: 9th International Workshop on Integration of Solar Power and Storage into Power Systems: . Paper presented at 9th Solar & Storage Integration Workshop, Dublin, Ireland, 15-16 October, 2019,.
Open this publication in new window or tab >>Electricity balancing capacity, emissions, and cost comparison of three storage-based local energy systems for variable power generation
2019 (English)In: 9th International Workshop on Integration of Solar Power and Storage into Power Systems, 2019Conference paper, Oral presentation with published abstract (Other academic)
Abstract [en]

This study compares three energy system setups for supplying the electricity and heat demand in a residential area. Two of the setups contain district heating and a combined heat and power unit. The first setup contains a thermal storage and the second contains an electric battery. The third setup is all electric (incl. the heat production). The second setup reduced the electricity balancing demand the most, but had the highest CO2,eq-emissions. The third setup had no emissions, but the highest cost. This setup also increased the balancing demand. The first system, with the thermal storage, performed most satisfying when electricity balancing capacity, CO2,eq-emissions, and costs were weighed together.

Keywords
Thermal energy storages, electricity balancing, emissions, district heating, combined heat and power
National Category
Building Technologies Energy Engineering
Research subject
Engineering Science with specialization in Civil Engineering and Built Environment
Identifiers
urn:nbn:se:uu:diva-397577 (URN)
Conference
9th Solar & Storage Integration Workshop, Dublin, Ireland, 15-16 October, 2019,
Note

Article accesible upon request via research gate:

https://www.researchgate.net/profile/Svante_Monie/

Available from: 2019-11-22 Created: 2019-11-22 Last updated: 2019-11-29Bibliographically approved
Monie, S., Nilsson, A., Lingfors, D., Widén, J. & Åberg, M. (2018). Thermal Energy Storages in Residential Areas: – a potential to increase renewable power generation?. In: Fred Grossberg (Ed.), 2018 ACEEE Summer Study on Energy Efficiency in Buildings: Making Efficiency Easy and Enticing. Paper presented at 2018 ACEEE Summer Study on Energy Efficiency in Buildings, Pacific Grove, CA, August 12-17, 2018. (pp. 11-1-11-12). Washington D.C., 20, Article ID 0194_0286_000156.
Open this publication in new window or tab >>Thermal Energy Storages in Residential Areas: – a potential to increase renewable power generation?
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2018 (English)In: 2018 ACEEE Summer Study on Energy Efficiency in Buildings: Making Efficiency Easy and Enticing / [ed] Fred Grossberg, Washington D.C., 2018, Vol. 20, p. 11-1-11-12, article id 0194_0286_000156Conference paper, Oral presentation with published abstract (Refereed)
Abstract [en]

With an increased ambition of implementing renewable electricity production in our energy systems follows the need of handling the inherent variability from some of these production sources (e.g. wind and solar). This could be via curtailments, infrastructural reinforcements of the power grid, and/or increased utilization of power system reserves. The aim of this study was to investigate if power surplus and deficit due to mismatch between intermittent power generation and power demand could be reduced with electric heat pumps (used for power-to-heat purposes), combined heat and power (CHP) production (for power balancing), and seasonal thermal energy storage (STES) (as buffering capacity). A residential area consisting of buildings refurbished for improved energy performance, roof top solar photovoltaic (PV) systems, a local heat distribution system, a small-scale CHP plant, central heat pumps, and a STES, was simulated. The heat pumps were given priority to use surplus power from roof top PV generation or surplus from the grid (e.g. wind power). The CHP plant produced power during power deficits. Surplus heat from the CHP plant as well as from the heat pumps was stored in the STES. The results showed a reduction of the surplus power from the local PV systems towards the upstream power grid. Also, the possibility to offer regulative service towards upstream power grid by using CHP was demonstrated. The conclusion is that power-to-heat and CHP can significantly reduce the mismatch between variable power generation and power demand.

Place, publisher, year, edition, pages
Washington D.C.: , 2018
Keywords
Thermal Storage, Power to heat, Combined heat and power, CHP, P2H, Power balancing
National Category
Energy Systems
Research subject
Physics
Identifiers
urn:nbn:se:uu:diva-363957 (URN)
Conference
2018 ACEEE Summer Study on Energy Efficiency in Buildings, Pacific Grove, CA, August 12-17, 2018.
Available from: 2018-10-22 Created: 2018-10-22 Last updated: 2018-10-29Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0002-1650-8947

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