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Energies 2014, 7(12), 7816-7846; doi:10.3390/en7127816

Performance Analyses of Renewable and Fuel Power Supply Systems for Different Base Station Sites

Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture (FESB), University of Split, R. Boskovica 32, Split 21000, Croatia
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Received: 11 April 2014 / Revised: 10 November 2014 / Accepted: 10 November 2014 / Published: 25 November 2014
(This article belongs to the Special Issue Green IT and IT for Smart Energy Savings)
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Abstract

Base station sites (BSSs) powered with renewable energy sources have gained the attention of cellular operators during the last few years. This is because such “green” BSSs impose significant reductions in the operational expenditures (OPEX) of telecom operators due to the possibility of on-site renewable energy harvesting. In this paper, the green BSSs power supply system parameters detected through remote and centralized real time sensing are presented. An implemented sensing system based on a wireless sensor network enables reliable collection and post-processing analyses of many parameters, such as: total charging/discharging current of power supply system, battery voltage and temperature, wind speed, etc. As an example, yearly sensing results for three different BSS configurations powered by solar and/or wind energy are discussed in terms of renewable energy supply (RES) system performance. In the case of powering those BSS with standalone systems based on a fuel generator, the fuel consumption models expressing interdependence among the generator load and fuel consumption are proposed. This has allowed energy-efficiency comparison of the fuel powered and RES systems, which is presented in terms of the OPEX and carbon dioxide (CO2) reductions. Additionally, approaches based on different BSS air-conditioning systems and the on/off regulation of a daily fuel generator activity are proposed and validated in terms of energy and capital expenditure (CAPEX) savings. View Full-Text
Keywords: base station; sensor; energy; green; power; network; consumption; monitoring; wireless; renewable; diesel; generator; wind; solar base station; sensor; energy; green; power; network; consumption; monitoring; wireless; renewable; diesel; generator; wind; solar
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Lorincz, J.; Bule, I.; Kapov, M. Performance Analyses of Renewable and Fuel Power Supply Systems for Different Base Station Sites. Energies 2014, 7, 7816-7846.

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