Off-grid Solar Energy Storage System Using Repurposed Lithium Iron Phosphate (LFP) Batteries in NPUST: A Case Report

Hsien-Ching Chung

doi:10.20944/preprints202402.1037.v1

Preprint Case Report Version 1 Preserved in Portico This version is not peer-reviewed

Version 1 : Received: 19 February 2024 / Approved: 19 February 2024 / Online: 20 February 2024 (05:58:07 CET)

An off-grid solar energy storage system (ESS) in National Pingtung University of Science and Technology (NPUST) was built and officially operated on Jun. 16th 2022. The system is installed in a 40' general container with PV panels of solar power 8250 W_p on top of the container. The ESS is made by repurposed lithium iron phosphate (LFP) batteries of 20 kWh capacity, where a battery management system (BMS) is adopted to ensured the safety of the battery system. An energy management system (EMS) is built to receive, process, analyse, store, and output the energy information. In this manuscript, a brief engineering report about the system is given.

off grid; energy storage system; energy management system; lithium-ion battery; lithium iron phosphate battery; LFP battery; repurposed battery; photovoltaic energy

Engineering, Energy and Fuel Technology

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Off-grid Solar Energy Storage System Using Repurposed Lithium Iron Phosphate (LFP) Batteries in NPUST: A Case Report

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