Energy flexibility from the consumer: Integrating local electricity and heat supplies in a building

Yang Zhang, Pietro Elia Campana, Ying Yang, Bengt Stridh, Anders Lundblad and Jinyue Yan

Applied Energy, 2018, vol. 223, issue C, 430-442

Abstract: The increasing penetration level of renewable energy requires more flexibility measures to be implemented in future energy systems. Integrating an energy consumer’s local energy supplies connects multiple energy networks (i.e., the electrical grid, the district heating network, and gas network) in a decentralized way. Such integration enhances the flexibility of energy systems. In this work, a Swedish office building is investigated as a case study. Different components, including heat pump, electrical heater, battery and hot water storage tank are integrated into the electricity and heat supply system of the building. Special focus is placed on the flexibility that the studied building can provide to the electrical grid (i.e., the building modulates the electricity consumption in response to the grid operator’s requirements). The flexibility is described by two metrics including the flexibility hours and the flexibility energy. Optimization of the component capacities and the operation profiles is carried out by using Mixed Integer Linear Programming (MILP).

Keywords: Flexibility; Supply integration; Electrical grid; District heating; Optimization (search for similar items in EconPapers)
Date: 2018
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Citations: View citations in EconPapers (20)

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DOI: 10.1016/j.apenergy.2018.04.041

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