Transformative and disruptive role of local direct current power networks in power and transportation sectors

Abstract

The power sector is about to undergo a major disruptive transformation. In this paper, we have discussed the best possible energy solution for addressing the challenges of climate change and eradication of energy poverty. This paper focusses on the decentralized power generation, storage and distribution through photovoltaics and lithium batteries. It encompasses the need for local direct current (DC) power through the factors driving this change. The importance of local DC power in the transportation sector is also established. Finally, we conclude with data bolstering our argument towards the paradigm shift in the power network.

Future Design Approaches for Energy Poverty: Users Profiling and Services for No-Vulnerable Condition

“…From a technical point of view, 10% of analyzed papers focus on technical and technological solutions to fuel and energy poverty. Among them, most are based on finding solutions to produce more energy from renewable sources [64][65][66][67][68]. In particular, Donaldson et al [68] propose the use of urban brownfields for producing energy targeted to poor households.…”

“…In particular, Donaldson et al [68] propose the use of urban brownfields for producing energy targeted to poor households. Some research is then focused on the implementation of storage systems and lithium batteries together with energy production [64,65]. Very few papers focus on retrofitting solutions as a way to reduce and mitigate energy poverty.…”

Photovoltaics- and Battery-Based Power Network as Sustainable Source of Electric Power

“…However, power conversion, distribution and long-haul transmission losses are still prevalent in the ageing grid infrastructure. The emergence of decentralized DC microgrids and nanogrids is the solution to mitigate these losses [8,10]. Table 1.…”

“…However, the scenario is changing today. Local generation of DC power eliminates the long-haul transmission and saves capital cost and power [8,10]. Photovoltaics generates DC power and batteries store DC power.…”

“…Even at the solar farm level, the battery bank charging is prioritized before the generated excess power is converted to AC to be sold to the grid. Ideally, a DC power network consisting of PV for DC generation, a battery for DC storage and DC loads will be a more efficient system than the existing grid [8]. However, this imminent shift to a complete DC network with the conversion to a few AC loads will take some time [11].…”