Editorial

4 pages, 174 KiB

Open AccessEditorial

Special Issue “Innovation, Policy, and Regulation in Electricity Markets”

by Lynne L. Kiesling, Leonardo Meeus and Michael G. Pollitt

Energies 2021, 14(19), 6202; https://doi.org/10.3390/en14196202 - 28 Sep 2021

Viewed by 1298

The rise of intermittent renewable energy generation, the coming mass penetration of electric vehicles and moves to decarbonise the gas grid are leading to widespread innovation experiments within electricity systems and their associated markets [...] Full article

(This article belongs to the Special Issue Innovation, Policy, and Regulation in Electricity Markets)

Research

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26 pages, 325 KiB

Open AccessArticle

How to Procure Flexibility Services within the Electricity Distribution System: Lessons from an International Review of Innovation Projects

by Karim L. Anaya and Michael G. Pollitt

Energies 2021, 14(15), 4475; https://doi.org/10.3390/en14154475 - 24 Jul 2021

Cited by 12 | Viewed by 3410

Abstract

The aim of this paper is to analyse and evaluate the deployment of smart platforms (operated by distribution system operators—DSOs—or by independent parties) in key jurisdictions that facilitate the trading of flexibility services—primarily by DSOs. We look at key innovation projects/initiatives from seven [...] Read more.

The aim of this paper is to analyse and evaluate the deployment of smart platforms (operated by distribution system operators—DSOs—or by independent parties) in key jurisdictions that facilitate the trading of flexibility services—primarily by DSOs. We look at key innovation projects/initiatives from seven jurisdictions, including Australia, France, Germany, Great Britain, Japan, The Netherlands and Norway. We have deliberately selected 13 use cases that operate under different regulatory frameworks and market rules, and have been recently implemented (from 2017 onwards). With the selection of key use cases this study seeks to discuss the different smart architecture solutions and main capabilities across different demonstrators and their relationship to business as usual. It also analyses flexibility market designs, identifies main characteristics, and compares different price formation schemes and procurement methods. The value of flexibility for DSOs is also discussed. Full article

(This article belongs to the Special Issue Innovation, Policy, and Regulation in Electricity Markets)

25 pages, 295 KiB

Open AccessArticle

The Role of Regulators in Promoting the Procurement of Flexibility Services within the Electricity Distribution System: A Survey of Seven Leading Countries

by Karim L. Anaya and Michael G. Pollitt

Energies 2021, 14(14), 4073; https://doi.org/10.3390/en14144073 - 06 Jul 2021

Cited by 7 | Viewed by 2599

Abstract

This paper identifies and explores regulatory issues that may have an impact on the use of flexibility services by distribution utilities to solve grid constraints. This can be done by flexible distributed energy resources which can be instructed, for instance, to reduce export [...] Read more.

This paper identifies and explores regulatory issues that may have an impact on the use of flexibility services by distribution utilities to solve grid constraints. This can be done by flexible distributed energy resources which can be instructed, for instance, to reduce export generating capacity or increasing consumption. We want to identify how regulation can better support the development of the future distribution utility in its role as neutral market facilitator, enabling more competition in local flexibility markets and optimal use of resources. A set of questionnaires were designed to capture the insights around important aspects of the regulation of flexibility markets (utilities’ network incentives, network tariff structure, market design for flexibility markets, etc.). These were sent to distribution utilities, energy regulators, energy marketplaces, energy associations and relevant experts from seven jurisdictions. The responses suggest a collective interest in the procurement of flexibility services by distribution utilities from distributed energy resources. New regulations, the adaptation of current rules and recent consultations reflect this. However, the amount of progress with and preferences for key regulatory changes differ across jurisdictions. Full article

(This article belongs to the Special Issue Innovation, Policy, and Regulation in Electricity Markets)

20 pages, 1324 KiB

Open AccessArticle

Welcoming New Entrants into European Electricity Markets

by Tim Schittekatte, Valerie Reif and Leonardo Meeus

Energies 2021, 14(13), 4051; https://doi.org/10.3390/en14134051 - 05 Jul 2021

Cited by 13 | Viewed by 5292

Abstract

In this review paper, we select four important waves of new entrants that knocked on the door of European electricity markets to illustrate how market rules need to be continuously adapted to allow new entrants to come in and push innovation forward. The [...] Read more.

In this review paper, we select four important waves of new entrants that knocked on the door of European electricity markets to illustrate how market rules need to be continuously adapted to allow new entrants to come in and push innovation forward. The new entrants that we selected are utilities venturing into neighbouring markets after establishing a strong position in their home market, utility-scale renewables project developers, asset-light software companies aggregating smaller consumers and producers, and different types of communities. We show that well-intentioned rules designed for certain types of market participants can (unintentionally) become obstacles for new entrants. We conclude that the evolution of market rules illustrates the importance of dynamic regulation. At the start of the liberalisation process the view was that we would deregulate or re-regulate the sector after which the role of regulators could be reduced. However, their role has only increased. New players tend to improve the sustainability of the electricity sector in environmental, social, or economic terms but might also present new risks that require intervention by regulators. Full article

(This article belongs to the Special Issue Innovation, Policy, and Regulation in Electricity Markets)

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22 pages, 632 KiB

Open AccessArticle

Opening Up Transactive Systems: Introducing TESS and Specification in a Field Deployment

by Marie-Louise Arlt, David P. Chassin and L. Lynne Kiesling

Energies 2021, 14(13), 3970; https://doi.org/10.3390/en14133970 - 02 Jul 2021

Cited by 7 | Viewed by 3010

Abstract

Transactive energy systems (TS) use automated device bidding to access (residential) demand flexibility and coordinate supply and demand on the distribution system level through market processes. In this work, we present TESS, a modularized platform for the implementation of TS, which enables the [...] Read more.

Transactive energy systems (TS) use automated device bidding to access (residential) demand flexibility and coordinate supply and demand on the distribution system level through market processes. In this work, we present TESS, a modularized platform for the implementation of TS, which enables the deployment of adjusted market mechanisms, economic bidding, and the potential entry of third parties. TESS thereby opens up current integrated closed-system TS, allows for the better adaptation of TS to power systems with high shares of renewable energies, and lays the foundations for a smart grid with a variety of stakeholders. Furthermore, despite positive experiences in various pilot projects, one hurdle in introducing TS is their integration with existing tariff structures and (legal) requirements. In this paper, we therefore describe TESS as we have modified it for a field implementation within the service territory of Holy Cross Energy in Colorado. Importantly, our specification addresses challenges of implementing TS in existing electric retail systems, for instance, the design of bidding strategies when a (non-transactive) tariff system is already in place. We conclude with a general discussion of the challenges associated with “brownfield” implementation of TS, such as incentive problems of baseline approaches or long-term efficiency. Full article

(This article belongs to the Special Issue Innovation, Policy, and Regulation in Electricity Markets)

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21 pages, 688 KiB

Open AccessArticle

Constrained Optimization as the Allocation Method in Local Flexibility Markets

by Andreas Zeiselmair and Simon Köppl

Energies 2021, 14(13), 3932; https://doi.org/10.3390/en14133932 - 30 Jun 2021

Cited by 13 | Viewed by 1989

Abstract

Local flexibility markets or smart markets are new tools used to harness regional flexibility for congestion management. In order to benefit from the available flexibility potential for grid-oriented or even grid-supportive applications, complex but efficient and transparent allocation is necessary. This paper proposes [...] Read more.

Local flexibility markets or smart markets are new tools used to harness regional flexibility for congestion management. In order to benefit from the available flexibility potential for grid-oriented or even grid-supportive applications, complex but efficient and transparent allocation is necessary. This paper proposes a constrained optimization method for matching the flexibility demand of grid operators to the flexibility supply using decentralized flexibility options located in the distribution grid. Starting with a definition of the operational and stakeholder environment of smart market design, various existing approaches are analyzed based on a literature review and a resulting meta-analysis. In the next step, a categorization of the allocation method is conducted followed by the definition of the optimization goal. The optimization problem, including all relevant input parameters, is identified and formulated by introducing the relevant boundary conditions and constraints of flexibility demand and offers. A proof of concept of the approach is presented using a case study and the Altdorfer Flexmarkt (ALF) field test within the project C/sells. In this paper, we analyze the background of the local flexibility market, provide the methodology (including publishing the code of the matching mechanism), and provide the results of the field test. Full article

(This article belongs to the Special Issue Innovation, Policy, and Regulation in Electricity Markets)

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15 pages, 502 KiB

Open AccessArticle

Community Energy Groups: Can They Shield Consumers from the Risks of Using Blockchain for Peer-to-Peer Energy Trading?

by Alexandra Schneiders and David Shipworth

Energies 2021, 14(12), 3569; https://doi.org/10.3390/en14123569 - 15 Jun 2021

Cited by 9 | Viewed by 2427

Abstract

Peer-to-peer (P2P) energy trading is emerging as a new mechanism for settling the exchange of energy between renewable energy generators and consumers. P2P provides a mechanism for local balancing when it is facilitated through distributed ledgers (‘blockchains’). Energy communities across Europe have uncovered [...] Read more.

Peer-to-peer (P2P) energy trading is emerging as a new mechanism for settling the exchange of energy between renewable energy generators and consumers. P2P provides a mechanism for local balancing when it is facilitated through distributed ledgers (‘blockchains’). Energy communities across Europe have uncovered the potential of this technology and are currently running pilots to test its applicability in P2P energy trading. The aim of this paper is to assess, using legal literature and legislation, whether the legal forms available to energy communities in the United Kingdom (UK) can help resolve some of the uncertainties around the individual use of blockchain for P2P energy trading. This includes the legal recognition of ‘prosumers’, the protection of their personal data, as well as the validity of ‘smart contracts’ programmed to trade energy on the blockchain network. The analysis has shown that legal entities, such as Limited Liability Partnerships and Co-operative Societies, can play a crucial role in providing the necessary framework to protect consumers engaging in these transactions. This is particularly the case for co-operatives, given that they can hold members liable for not respecting the rules set out in their (compulsory) governing document. These findings are relevant to other European countries, where the energy co-operative model is also used. Full article

(This article belongs to the Special Issue Innovation, Policy, and Regulation in Electricity Markets)

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19 pages, 2630 KiB

Open AccessArticle

DSO Flexibility Market Framework for Renewable Energy Community of Nanogrids

by Luca Mendicino, Daniele Menniti, Anna Pinnarelli, Nicola Sorrentino, Pasquale Vizza, Claudio Alberti and Francesco Dura

Energies 2021, 14(12), 3460; https://doi.org/10.3390/en14123460 - 11 Jun 2021

Cited by 15 | Viewed by 4030

Abstract

With the introduction of the renewable energy communities in the current electrical market environment, it becomes possible to aggregate small generation resources and users’ loads to exchange power within the aggregation and at the same time provide services to the electrical system. The [...] Read more.

With the introduction of the renewable energy communities in the current electrical market environment, it becomes possible to aggregate small generation resources and users’ loads to exchange power within the aggregation and at the same time provide services to the electrical system. The renewable energy community of users equipped with nanogrid technology allows performing an adequate level of flexibility. It may be the solution to coordinate in the best possible way the energy resources in order to increase the community self-consumption and to provide ancillary services to the grid. In this paper, a model for the interaction between the Distribution System Operator (DSO)—Transmission System Operator (TSO) and the energy community based on nanogrids is proposed and an operational example is presented. Full article

(This article belongs to the Special Issue Innovation, Policy, and Regulation in Electricity Markets)

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29 pages, 15939 KiB

Open AccessArticle

Integration of Flexibility from Distributed Energy Resources: Mapping the Innovative Italian Pilot Project UVAM

by Jan Marc Schwidtal, Marco Agostini, Fabio Bignucolo, Massimiliano Coppo, Patrizia Garengo and Arturo Lorenzoni

Energies 2021, 14(7), 1910; https://doi.org/10.3390/en14071910 - 30 Mar 2021

Cited by 14 | Viewed by 3199

Abstract

In light of the advancing energy transition and an increasing amount of intermittent renewable energy to be integrated, flexibility from distributed energy resources will be key. In this paper, the Italian UVAM (Unità Virtuali Abilitate Miste, i.e., virtually aggregated mixed units) project, one [...] Read more.

In light of the advancing energy transition and an increasing amount of intermittent renewable energy to be integrated, flexibility from distributed energy resources will be key. In this paper, the Italian UVAM (Unità Virtuali Abilitate Miste, i.e., virtually aggregated mixed units) project, one of the biggest pilots in Europe to serve this purpose, is critically reviewed and mapped after two years of operation. The pilot is analyzed on a global level as well as the individual participant level. Based on the extensive analysis of actual market data, different strategies of participating companies to obtain capacity in accordance with the pilot project’s design are identified. Furthermore, the specific bidding strategies of individual participating units on the balancing market are outlined. Alongside this, the overall pilot project’s market integration, in terms of offered and accepted bids, is depicted. The thorough data analysis, therefore, serves as an input and fundamental building block for future electricity market modeling. Comprehending specific data from the coronavirus disease 2019 (COVID-19) pandemic, provides insights for future high renewable-energy scenarios. Based on the analysis findings, valuable deliverables are devised for both policy-makers and decision-makers who aim to leverage the flexibility potential of distributed resources. Full article

(This article belongs to the Special Issue Innovation, Policy, and Regulation in Electricity Markets)

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16 pages, 1413 KiB

Open AccessArticle

The Impact of Smart Prepaid Metering on Non-Technical Losses in Ghana

by Gideon Otchere-Appiah, Shingo Takahashi, Mavis Serwaa Yeboah and Yuichiro Yoshida

Energies 2021, 14(7), 1852; https://doi.org/10.3390/en14071852 - 26 Mar 2021

Cited by 9 | Viewed by 6442

Abstract

The high incidence of electricity theft, meter tampering, meter bypassing, reading errors, and defective and aged meters, among others, increases utility losses, especially non-technical losses (NTL). A utility in Ghana piloted a non-technical loss reduction program in 2019 to replace postpaid meters with [...] Read more.

The high incidence of electricity theft, meter tampering, meter bypassing, reading errors, and defective and aged meters, among others, increases utility losses, especially non-technical losses (NTL). A utility in Ghana piloted a non-technical loss reduction program in 2019 to replace postpaid meters with anti-tamper, anti-fraud, and anti-theft smart prepaid meters. By using customer-level residential billing panel data from 2018 to 2019 obtained from the utility, we assess the effectiveness of this program using the difference-in-differences fixed-effect approach. On average, the results indicated that the reported amount of customers’ monthly electricity consumption increases by 13.2% when any tampered postpaid meter is replaced with a smart prepaid meter, indicating the NTLs by customers. We further employed quantile difference-in-differences regression and observed that reported energy consumption has increased for all households except those at the lower quantile (25th quantile). We conclude that smart prepaid metering could be a remedy to reduce NTLs for the electricity distribution sector in areas where electricity theft is rampant. Full article

(This article belongs to the Special Issue Innovation, Policy, and Regulation in Electricity Markets)

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Review

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24 pages, 1010 KiB

Open AccessReview

Analysis of New Flexibility Market Models in Europe

by Orlando Valarezo, Tomás Gómez, José Pablo Chaves-Avila, Leandro Lind, Mauricio Correa, David Ulrich Ziegler and Rodrigo Escobar

Energies 2021, 14(12), 3521; https://doi.org/10.3390/en14123521 - 13 Jun 2021

Cited by 55 | Viewed by 6665

Abstract

To identify the trends in new flexibility markets, a set of market and aggregator platforms were selected and compared. The analyzed initiatives are relevant to consider alternative designs for European electricity markets. This review proposes a common methodology for analyzing these market models [...] Read more.

To identify the trends in new flexibility markets, a set of market and aggregator platforms were selected and compared. The analyzed initiatives are relevant to consider alternative designs for European electricity markets. This review proposes a common methodology for analyzing these market models by comparing their description, market structure, market timing, and implementation. Furthermore, a range of policy implications and future research directions towards implementing these markets are presented. The results provide compelling evidence that the new market models represent a promising business with technical and economic justification, as they incentivize the uptake of flexibility from distributed resources by providing services to Distribution System Operators (DSOs) in coordination with Transmission System Operators (TSOs). Moreover, the interactions between these new market platforms and existing markets are of particular interest, and the contributions from aggregator platforms are also relevant to enhance the political vision of empowering the customers through their active participation in markets. Full article

(This article belongs to the Special Issue Innovation, Policy, and Regulation in Electricity Markets)

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23 pages, 347 KiB

Open AccessReview

Assessment of Demand Side Flexibility in European Electricity Markets: A Country Level Review

by Aikaterini Forouli, Emmanouil A. Bakirtzis, Georgios Papazoglou, Konstantinos Oureilidis, Vasileios Gkountis, Luisa Candido, Eloi Delgado Ferrer and Pandelis Biskas

Energies 2021, 14(8), 2324; https://doi.org/10.3390/en14082324 - 20 Apr 2021

Cited by 31 | Viewed by 5423

Abstract

Power systems in many countries have recently undergone a significant transition towards renewable and carbon-free generation sources. Those sources pose new challenges to the grid operation due to their intermittency and uncertainty. Consequently, advanced policy strategies and technologies offering new flexibility solutions on [...] Read more.

Power systems in many countries have recently undergone a significant transition towards renewable and carbon-free generation sources. Those sources pose new challenges to the grid operation due to their intermittency and uncertainty. Consequently, advanced policy strategies and technologies offering new flexibility solutions on the inelastic demand side are required to maintain the reliability of power systems. Given the diversity of situations, legislation and needs across European countries and the varying nature of distribution system operators, this article reviews the deployment of demand side flexibility at national level to identify best practices and main barriers. The analysis concerns European countries of different progress in solutions that leverage flexibility towards offering electricity grid services. The scope is to explore the operation principles of European electricity markets, to assess the participation of emerging flexible resources, and to propose new approaches that facilitate the integration of flexible assets in the distribution grid. The countries reviewed are the United Kingdom, Belgium, Italy and Greece. These countries were selected owing to their diversity in terms of generation mix and market design. Barriers for market access of flexibility resources are also identified in order to form relevant country-specific recommendations. Full article

(This article belongs to the Special Issue Innovation, Policy, and Regulation in Electricity Markets)

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