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Thermal Energy Storages in Residential Areas: – a potential to increase renewable power generation?
Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Fasta tillståndets fysik. (Built Environment Energy Systems Group)ORCID-id: 0000-0002-1650-8947
Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Fasta tillståndets fysik.
Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Fasta tillståndets fysik.ORCID-id: 0000-0001-6586-4932
Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Fasta tillståndets fysik.ORCID-id: 0000-0003-4887-9547
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2018 (Engelska)Ingår i: 2018 ACEEE Summer Study on Energy Efficiency in Buildings: Making Efficiency Easy and Enticing / [ed] Fred Grossberg, Washington D.C., 2018, Vol. 20, s. 11-1-11-12, artikel-id 0194_0286_000156Konferensbidrag, Muntlig presentation med publicerat abstract (Refereegranskat)
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.

Ort, förlag, år, upplaga, sidor
Washington D.C., 2018. Vol. 20, s. 11-1-11-12, artikel-id 0194_0286_000156
Nyckelord [en]
Thermal Storage, Power to heat, Combined heat and power, CHP, P2H, Power balancing
Nationell ämneskategori
Energisystem
Forskningsämne
Fysik
Identifikatorer
URN: urn:nbn:se:uu:diva-363957OAI: oai:DiVA.org:uu-363957DiVA, id: diva2:1257648
Konferens
2018 ACEEE Summer Study on Energy Efficiency in Buildings, Pacific Grove, CA, August 12-17, 2018.
Tillgänglig från: 2018-10-22 Skapad: 2018-10-22 Senast uppdaterad: 2018-10-29Bibliografiskt granskad

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Monie, SvanteNilsson, AnnicaLingfors, DavidWidén, JoakimÅberg, Magnus

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