Organizing prosumers into electricity trading communities: Costs to attain electricity transfer limitations and self‐sufficiency goals
Journal article, 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.

residential electricity prosumers

peer‐to‐peer electricity trading

photovoltaic battery systems

community energy systems

optimization modeling

Author

Verena Heinisch

Chalmers, Space, Earth and Environment, Energy Technology, Energy Technology 1

Mikael Odenberger

Chalmers, Space, Earth and Environment, Energy Technology, Energy Technology 2

Lisa Göransson

Chalmers, Space, Earth and Environment, Energy Technology, Energy Technology 2

Filip Johnsson

Chalmers, Space, Earth and Environment, Energy Technology

International Journal of Energy Research

0363-907X (ISSN)

Vol. 43 13 7021-7039

New networks of power: on the emergence, diffusion and impact of alternative electricity system architectures

Swedish Energy Agency, 2015-01-01 -- 2018-12-31.

Subject Categories

Energy Engineering

Energy Systems

Other Electrical Engineering, Electronic Engineering, Information Engineering

Areas of Advance

Energy

DOI

10.1002/er.4720

More information

Latest update

11/29/2019