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Representing node-internal transmission and distribution grids in energy system models

Hess, Denis and Wetzel, Manuel and Cao, Karl-Kiên (2018) Representing node-internal transmission and distribution grids in energy system models. Renewable Energy. Elsevier. ISSN 0960-1481

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Abstract

Today’s energy system models calculate power flows between simplified nodes representing transmission and distribution grid of a region or a country; so called copper plates. Such nodes are often restricted to a few tens thus the grid is not well represented or totally neglected in the whole energy system analysis due to limited computational performance using such models. Here we introduce our new methodology of node-internal grid calculation representing the electricity grid in cost values based on strong correlations between peak load, grid cost and feed-in share of wind and photovoltaic capacity. We validate in our case study this approach using a 491 node model for Germany. This examination area is modelled as enclosed energy system to calculate the grid in a 100% renewable energy system in 2050 enabling maximum grid expansion. Our grid model facilitates grid expansion cost and reduces computational effort. The quantification of the German electricity grid show that the grid makes up to 12% of total system cost equivalent up to 12 billion € per year.

Item URL in elib:https://elib.dlr.de/115271/
Document Type:Article
Title:Representing node-internal transmission and distribution grids in energy system models
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Hess, Denisdenis.hess (at) dlr.dehttps://orcid.org/0000-0002-4767-1659
Wetzel, Manuelmanuel.wetzel (at) dlr.dehttps://orcid.org/0000-0001-7838-2414
Cao, Karl-Kiênkarl-kien.cao (at) dlr.dehttps://orcid.org/0000-0002-9720-0337
Date:2018
Journal or Publication Title:Renewable Energy
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Publisher:Elsevier
ISSN:0960-1481
Status:Published
Keywords:grid expansion, copper plate, energy system model, balanced energy mix, fluctuating and dispatchable renewable energy shares, CSP-HVDC
HGF - Research field:Energy
HGF - Program:Technology, Innovation and Society
HGF - Program Themes:Renewable Energy and Material Resources for Sustainable Futures - Integrating at Different Scales
DLR - Research area:Energy
DLR - Program:E SY - Energy Systems Analysis
DLR - Research theme (Project):E - Systems Analysis and Technology Assessment
Location: Stuttgart
Institutes and Institutions:Institute of Engineering Thermodynamics > Systems Analysis and Technology Assessment
Deposited By: Hess, Denis
Deposited On:01 Dec 2017 11:42
Last Modified:06 Sep 2019 15:16

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