Technoeconomic Analysis for Electricity Storage Using Batteries and Fuel Cells

    Student thesis: Master's Thesis

    Abstract

    Shifting to green sources of energy and energy efficient buildings has gained popularity over the last few years thanks to its ability to generate and save energy. Yet, curtailment of electricity remains one of the major challenges faced when adopting green building energy. For that matter, energy storage systems were introduced as an economic solution to store energy and use it while needed. In this thesis, lithium-ion batteries, and proton exchange membrane reversible fuel cells, and reversible solid oxide cells are the ESS considered. To evaluate these ESSs in two different states, California and New York, their Levelized Cost of Storage (LCOS) were computed. The results show how different solar and load profiles generate different LCOS. Also, sensitivity analysis shows that the LCOS of LIB, PEM RFC, and RSOC is sensitive to changes in capital costs, lifetime, discount rate, and round-trip efficiency; and the changes along the polarization curve shows the optimal configuration corresponding to the highest efficiency and lowest LCOS for PEM RFC. Finally, uncertainty analysis helped visualize the behavior of the LCOS when exposed to uncertainty in input parameters.
    Date of AwardNov 2021
    Original languageAmerican English

    Keywords

    • Energy efficient buildings; Energy storage systems; Li-ion battery; Reversible fuel cells; LCOS.

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