Future power transmission: Visions, technologies and challenges

Arcia-Garibaldi, Guadalupe; Cruz-Romero, Pedro; Gómez-Expósito, Antonio

doi:10.1016/j.rser.2018.06.004

Cited by 53 publications

(22 citation statements)

References 60 publications

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“…Fourth, technologies have matured and become both technical and financially more viable under a range of conditions. Mini-grids today include various AC [135] and DC [136,137] transmission options and a variety of primary energy sources (oil, biomass, hydro, wind, solar, hydrogen, or hybrids among others) [27,138]. Monitoring systems [139] allow companies to gather a large amount of data on systems usage, enabling them to refine their business models and technical solutions.…”

Section: Discussionmentioning

confidence: 99%

A Retrospective Analysis of Energy Access with a Focus on the Role of Mini-Grids

et al. 2020

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Achieving universal access to electricity by 2030 is a key part of the Agenda for Sustainable Development, and has its own Sustainable Development Goal, SDG 7.1. This is because electricity services are required for almost all aspects of a modern economy, from the cooling of vaccines to irrigation pumping, to manufacturing and running a business. The achievement of SDG 7.1 will require a thoughtful mix of policy, finance, and technology to be designed and implemented at scale. Yet, the pressing need for an electrification ramp-up is not unprecedented. Many countries (now considered "industrialized") faced similar challenges about a century ago. Although the existing literature covers a great deal of power systems evolution, there is a gap around the specific role and impact of small, isolated power systems in the early stages of electricity uptake. In this paper, we provide insights based on the review of the historical electrification efforts in four (now middle and high-income) countries. The drivers and context of electrification efforts in early stages are described. Those focus particularly on the role of dispersed, small-scale generation systems (mini-grids). Our analysis shows that electrification follows four loosely defined phases, namely: pilot projects, technological roll-out, economic expansion, and social scale-up. We report a selection of historical mistakes and advances that offer lessons of striking importance for today´s energy access efforts, particularly in regards to the development of mini-grids. We find that today, as historically, multi-stakeholder (e.g., planners, regulators, developers, investors, third party actors) collaboration is key and can help build locally adaptable, economically sustainable and community compatible mini-grids that can accelerate-and lower the societal costs of-universal access to electricity.

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Section: Discussionmentioning

confidence: 99%

A Retrospective Analysis of Energy Access with a Focus on the Role of Mini-Grids

et al. 2020

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“…First, the nature of a renewable electricity grid implies a physically integrated infrastructure that connects producers and consumers through interconnected grids between neighbouring countries, at a regional scale and possibly even inter‐continentally (Scholten & Bosman, 2016). So far, attention has focused on the technical, economic and regulatory aspects of grid interconnection (Fischhendler et al., 2016; IEA, 2016a; Konstantelos et al., 2017; Pierri et al., 2017), while its geopolitical implications have only recently attracted interest (Arcia‐Garibaldi et al., 2018; IEA, 2016b; IRENA, 2019a; Lilliestam & Ellenbeck, 2011, 2012; O'Sullivan et al., 2017; Overland, 2019).…”

Section: The Challenges Of Low‐carbon Energy Transitionsmentioning

confidence: 99%

The geopolitics of energy system transformation: A review

et al. 2021

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“…T O counteract the climate change, many countries consider a decarbonization of the energy sector, especially via a transition of electricity generation based on fossil fuels toward renewable energy sources (RES) [1], [2]. This transition introduces an increasingly distributed and fluctuating energy production, which generally necessitates additional transmission capacity as well as stronger interconnections of regional and national grids to balance and smooth the variability of RESbased generation [2], [3].…”

Section: Introductionmentioning

confidence: 99%

hynet: An Optimal Power Flow Framework for Hybrid AC/DC Power Systems

Hotz

Utschick

2020

IEEE Trans. Power Syst.

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High-voltage direct current (HVDC) systems are increasingly incorporated into today's AC power grids, necessitating optimal power flow (OPF) tools for the analysis, planning, and operation of such hybrid systems. To this end, we introduce hynet, a Python-based open-source OPF framework for hybrid AC/DC grids with point-to-point and radial multiterminal HVDC systems. hynet's design promotes ease of use and extensibility, which is supported by the particular mathematical model and software design presented in this paper. The system model features a unified representation of AC and DC subgrids as well as a concise and flexible converter model, which enable the compact description of a hybrid AC/DC power system and its OPF problem. To support convex relaxation based OPF solution techniques, a state space relaxation is introduced to obtain a unified OPF formulation that is analogous to the OPF of AC power systems. This enables the direct generalization of relaxation-related results for AC grids to hybrid AC/DC grids, which is shown for the semidefinite and second-order cone relaxation as well as associated results on exactness and locational marginal prices. Finally, hynet's object-oriented software design is discussed, which provides extensibility via inheritance and standard design patterns, and its robust and competitive performance is illustrated with case studies.

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Future power transmission: Visions, technologies and challenges

Cited by 53 publications

References 60 publications

A Retrospective Analysis of Energy Access with a Focus on the Role of Mini-Grids

A Retrospective Analysis of Energy Access with a Focus on the Role of Mini-Grids

The geopolitics of energy system transformation: A review

hynet: An Optimal Power Flow Framework for Hybrid AC/DC Power Systems

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