Journal
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
Volume 45, Issue 6, Pages 8389-8419Publisher
WILEY
DOI: 10.1002/er.6451
Keywords
IoT energy; IoT energy sources; IoT energy storage; IoT renewable energy
Categories
Funding
- National University of Malaysia
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The Internet of Things (IoT) is a network of lightweight nodes with minimal power and storage capacity. The energy system for smart applications relies on the IoT architecture, with most objects powered by short-life batteries. This paper discusses IoT energy system, resources, and storage, highlighting challenges in management and storage for bidirectional, autonomy, fluctuation, conversion, consumption, integration, multifunction, and stability.
The internet of things (IoT) is a distributed heterogeneous network of lightweight nodes with very minimal power and storage. The IoT energy system for smart applications such as smart grid, smart building, and smart transportations depends on the IoT architecture, determining the high or low-energy consumption levels. Most of the IoT objects are power-driven by batteries with short life spans that require replacement. The replacement phase is tedious; hence this paper comprehensively discussed the IoT energy system, energy resources, and energy storage as these three elements are crucial to enable energy efficiency for the IoT applications. In comparison to the battery-powered solutions, the scavenging of infinite quantities of energy makes the IoT systems robust. Therefore, this paper further elaborates on understanding the current situation in terms of renewable energy harvesting for these low-energy systems. The IoT energy storage highlighted in this paper includes fuel cell, lithium battery, and supercapacitor technology. This paper also provides the findings for IoT energy system challenges and open issues in management and storage in terms of bidirectional, continuity, autonomy, fluctuation, conversion, consumption, integration, multifunction, and stability. This paper will assist researchers in more quality yet practical energy usage and savings, better IoT system architecture, and smart application sustainability.
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