Paper Conference

Proceedings of Building Simulation 2021: 17th Conference of IBPSA


Dynamic life cycle assessment of electricity demand of buildings with storage systems – potential for environmental impact mitigation

Jalomi Maayan Tardif 1, Vasco Medici 1, Pierryves Padey 2
1 Institute of Applied Sustainability to the Built Environment (ISAAC), University of Applied Sciences and Arts of Southern Switzerland (SUPSI), Canobbio CH-6952, Switzerland
2 School of Management and Engineering Vaud (HEIG-VD), University of Applied Sciences and Arts of Western Switzerland (HES-SO),Yverdon-les-Bains CH-1400, Switzerland

Abstract: The diffusion of renewable energy generation and storage in building applications, along with demand-side management capabilities, requires understanding the environmental implications of the interactions between building systems and the electricity grid. In this study, a dynamic Life Cycle Analysis (LCA) approach is used to evaluate the environmental impact of the electricity consumption of a residential building equipped with a photovoltaic (PV) and stationary battery system, as compared to the impact of electricity consumed from the grid. Since the environmental impact of the electricity grid varies according to the availability of its supply sources, a database of the hourly energy imports, exports, and national production was established for the Swiss grid. Results for the Swiss electric network show that, when using a simple control scheme that is oblivious to the environmental impact of the supply system, the environmental benefits can range between 7% to 46%, depending on the technical parameters and environmental impacts categories considered.
Keywords: Energy storage, LCA, GHG emissions, Primary Energy, Photovoltaics
Pages: 711 - 718