Design of an Ultra-Low Powered Data-Logger for Stand-Alone PV Energy Systems

Asif Ur Rehman and M. Tariq Iqbal
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Asif Ur Rehman: Memorial University of Newfoundland, Canada
M. Tariq Iqbal: Memorial University of Newfoundland, Canada

European Journal of Electrical Engineering and Computer Science, 2020, vol. 4, issue 6

Abstract: This paper presents an open-source, ultra-low powered data-logger for off-grid photovoltaic (PV) energy systems. Deep-sleep mode of ESP32-S2 microcontroller is used along with voltage, current, and light sensors for logging the data of PV energy system to an external micro SD card. A toggle switch is used to switch the operational modes of data-logger between deep-sleep and web-server modes. Real-time PV data can be monitored in a local web-portal programmed in the microcontroller. The same web-portal is also used to check and download the historical data of a PV energy system. The energy consumption of the designed system is 7.33mWh during deep-sleep mode and 425mWh during the web-server mode. The total cost of the designed data-logger is C$ 30.

Keywords: PV data-logger; open-source data-logger; ultra-low powered data-logger; Off-grid PV system; Renewable Energy; solar energy; ESP32-S2; PV monitoring System (search for similar items in EconPapers)
Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:epw:ejece0:v:4:y:2020:i:6:id:19261

DOI: 10.24018/ejece.2020.4.6.261

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