A Techno-Economic Analysis of Battery Energy Storage Systems in Combination with Micro CHP Systems for Single-Family Houses

Peter Stenzel, Nils Heyermann, Maren Wenzel, Peter Markewitz, Martin Robinius, Rolf Albus, Klaus Görner, Detlef Stolten
2019 Proceedings of the 13th International Renewable Energy Storage Conference 2019 (IRES 2019)   unpublished
In this paper, the performance of battery storage systems in combination with micro combined heat and power (CHP) systems are systematically investigated by computer simulations for the supply of single-family houses in various settings. As input parameters for the analysis, energy demandtime series for electricity, heating and domestic hot water are considered for selected building types. The focus of the analysis is on the functional relationship between self-sufficiency (autarky) and
more » ... utarky) and self-consumption fraction on the one hand and factors such as system configuration (e.g. battery storage capacity), power and heat demand on the other hand. The results of the analysis shows that battery sizing only significantly affects autarky and self-consumption fraction up to a capacity of 2 kWh. The results of the economic evaluation shows also, that highest NPVs are reached for small batteries with capacities up to 2 kWh. Also, the operation of batteries in combination with CHP systems differs from the operation of batteries in combination with PV systems and results in higher full cycle numbers and different battery utilization patterns with a strong seasonal influence.
doi:10.2991/ires-19.2019.24 fatcat:cwpmc3nx4zduxejp3wvrsefake