Organizing prosumers into electricity trading communities: Costs to attain electricity transfer limitations and self‐sufficiency goals
Artikel i vetenskaplig tidskrift, 2019

Among household electricity end users, there is growing interest in local renewable electricity generation and energy independence. Community‐based and neighborhood energy projects, where consumers and prosumers of electricity trade their energy locally in a peer‐to‐peer system, have started to emerge in different parts of the world. This study investigates and compares the costs incurred by individual households and households organized in electricity trading communities in seeking to attain greater independence from the centralized electricity system. This independence is investigated with respect to: (i) the potential to reduce the electricity transfer capacity to and from the centralized system and (ii) the potential to increase self‐sufficiency. An optimization model is designed to analyze the investment and operation of residential photovoltaic battery systems. The model is then applied to different cases in a region of southern Sweden for year 2030. Utilizing measured electricity demand data for Swedish households, we show that with a reduced electricity transfer capacity to the centralized system, already a community of five residential prosumers can supply the household demand at lower cost than can prosumers acting individually. Grouping of residential prosumers in an electricity trading community confers greater benefits under conditions with a reduced electricity transfer capacity than when the goal is to become electricity self‐sufficient. It is important to consider the local utilization of photovoltaic‐generated electricity and its effect on the net trading pattern (to and from the centralized system) when discussing the impact on the electricity system of a high percentage of prosumers.

optimization modeling

residential electricity prosumers

photovoltaic battery systems

community energy systems

peer‐to‐peer electricity trading

Författare

Verena Heinisch

Chalmers, Rymd-, geo- och miljövetenskap, Energiteknik, Energiteknik 1

Mikael Odenberger

Chalmers, Rymd-, geo- och miljövetenskap, Energiteknik, Energiteknik 2

Lisa Göransson

Chalmers, Rymd-, geo- och miljövetenskap, Energiteknik, Energiteknik 2

Filip Johnsson

Chalmers, Rymd-, geo- och miljövetenskap, Energiteknik

International Journal of Energy Research

0363-907X (ISSN)

Nya krafter, nya nätverk: om framväxt, spridning och konsekvenser av alternativa elsystemarkitekturer

Energimyndigheten, 2015-01-01 -- 2018-12-31.

Ämneskategorier

Energiteknik

Energisystem

Annan elektroteknik och elektronik

Styrkeområden

Energi

DOI

10.1002/er.4720

Mer information

Skapat

2019-10-24