Coalitional Game Theory Based Value Sharing in Energy Communities

This paper presents a coalitional game for value sharing in energy communities (ECs). It is proved that the game is super-additive, and the grand coalition effectively increases the global payoff. It is also proved that the model is balanced and thus, it has a nonempty core. This means there always...

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Main Authors: Amir Safdarian, Poria Astero, Marius Baranauskas, Antti Keski-Koukkari, Anna Kulmala
Format: Article
Language:English
Published: IEEE 2021-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9435374/
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author Amir Safdarian
Poria Astero
Marius Baranauskas
Antti Keski-Koukkari
Anna Kulmala
author_facet Amir Safdarian
Poria Astero
Marius Baranauskas
Antti Keski-Koukkari
Anna Kulmala
author_sort Amir Safdarian
collection DOAJ
description This paper presents a coalitional game for value sharing in energy communities (ECs). It is proved that the game is super-additive, and the grand coalition effectively increases the global payoff. It is also proved that the model is balanced and thus, it has a nonempty core. This means there always exists at least one value sharing mechanism that makes the grand coalition stable. Therefore, prosumers will always achieve lower bills if they join to form larger ECs. A counterexample is presented to demonstrate that the game is not convex and value sharing based on Shapley values does not necessarily ensure the stability of the coalition. To find a stabilizing value sharing mechanism that belongs to the core of the game, the worst-case excess minimization concept is applied. In this concept, however, size of the optimization problem increases exponentially with respect to the number of members in EC. To make the problem computationally tractable, the idea of clustering members based on their generation/load profiles and considering the same profile and share for members in the same cluster is proposed here. K-means algorithm is used for clustering prosumers’ profiles. This way, the problem would have several redundant constraints that can be removed. The redundant constraints are identified and removed via the generalized Llewellyn’s rules. Finally, value sharing in an apartment building in the southern part of Finland in the metropolitan area is studied to demonstrate effectiveness of the method.
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spelling doaj.art-d3a0bec0b0c24a3d8df13f7ebea931cc2023-06-27T23:01:00ZengIEEEIEEE Access2169-35362021-01-019782667827510.1109/ACCESS.2021.30818719435374Coalitional Game Theory Based Value Sharing in Energy CommunitiesAmir Safdarian0https://orcid.org/0000-0003-0555-8858Poria Astero1https://orcid.org/0000-0002-6126-3598Marius Baranauskas2https://orcid.org/0000-0001-7176-9931Antti Keski-Koukkari3https://orcid.org/0000-0003-0490-9003Anna Kulmala4https://orcid.org/0000-0002-0051-359XVTT Technical Research Centre of Finland, Espoo, FinlandVTT Technical Research Centre of Finland, Espoo, FinlandVTT Technical Research Centre of Finland, Espoo, FinlandVTT Technical Research Centre of Finland, Espoo, FinlandVTT Technical Research Centre of Finland, Espoo, FinlandThis paper presents a coalitional game for value sharing in energy communities (ECs). It is proved that the game is super-additive, and the grand coalition effectively increases the global payoff. It is also proved that the model is balanced and thus, it has a nonempty core. This means there always exists at least one value sharing mechanism that makes the grand coalition stable. Therefore, prosumers will always achieve lower bills if they join to form larger ECs. A counterexample is presented to demonstrate that the game is not convex and value sharing based on Shapley values does not necessarily ensure the stability of the coalition. To find a stabilizing value sharing mechanism that belongs to the core of the game, the worst-case excess minimization concept is applied. In this concept, however, size of the optimization problem increases exponentially with respect to the number of members in EC. To make the problem computationally tractable, the idea of clustering members based on their generation/load profiles and considering the same profile and share for members in the same cluster is proposed here. K-means algorithm is used for clustering prosumers’ profiles. This way, the problem would have several redundant constraints that can be removed. The redundant constraints are identified and removed via the generalized Llewellyn’s rules. Finally, value sharing in an apartment building in the southern part of Finland in the metropolitan area is studied to demonstrate effectiveness of the method.https://ieeexplore.ieee.org/document/9435374/Coalitional game theoryenergy communityoptimization problempayoff allocationprosumerredundant constraint
spellingShingle Amir Safdarian
Poria Astero
Marius Baranauskas
Antti Keski-Koukkari
Anna Kulmala
Coalitional Game Theory Based Value Sharing in Energy Communities
IEEE Access
Coalitional game theory
energy community
optimization problem
payoff allocation
prosumer
redundant constraint
title Coalitional Game Theory Based Value Sharing in Energy Communities
title_full Coalitional Game Theory Based Value Sharing in Energy Communities
title_fullStr Coalitional Game Theory Based Value Sharing in Energy Communities
title_full_unstemmed Coalitional Game Theory Based Value Sharing in Energy Communities
title_short Coalitional Game Theory Based Value Sharing in Energy Communities
title_sort coalitional game theory based value sharing in energy communities
topic Coalitional game theory
energy community
optimization problem
payoff allocation
prosumer
redundant constraint
url https://ieeexplore.ieee.org/document/9435374/
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AT poriaastero coalitionalgametheorybasedvaluesharinginenergycommunities
AT mariusbaranauskas coalitionalgametheorybasedvaluesharinginenergycommunities
AT anttikeskikoukkari coalitionalgametheorybasedvaluesharinginenergycommunities
AT annakulmala coalitionalgametheorybasedvaluesharinginenergycommunities