Profitability of Energy Supply Contracting and Energy Sharing Concepts in a Neighborhood Energy Community: Business Cases for Austria
Open Access
- 8 February 2021
- Vol. 14 (4), 921
- https://doi.org/10.3390/en14040921
Abstract
To ensure broad application of renewable and energy-efficient energy systems in buildings and neighborhoods, profitable business models are vital. Energy supply contracting helps building residents to overcome the barrier of high upfront investment costs while additionally reducing risks related to energy-saving mechanisms. This study examines profitability for energy contractors in a variety of business cases that simultaneously ensure energy cost savings for the residents. A mixed-integer linear optimization model is developed for a neighborhood energy community, consisting of three buildings with diverse usages. In the process, the optimum capacities of building-attached and building-integrated photovoltaics, a heat pump and a gas-fired mini combined heat and power unit are determined to cover the energy community’s electricity and heat load. Results show that cross-domain contracting within energy communities is highly profitable for both, the contractor and the residents, while the extent depends on the accounting method, assumed interest rate and depreciation time. The additional application of energy-efficiency measures in/on the buildings, constituting a combination of energy supply and energy performance contracting, further increases profitability. The investigation of several sensitivities shows that high grid energy costs for electricity and gas enhance profitability of local energy technologies, leading to an increase in optimal technology capacities.Keywords
This publication has 29 references indexed in Scilit:
- An optimal distributed energy management scheme for solving transactive energy sharing problems in residential microgridsApplied Energy, 2020
- Cost-optimal economic potential of shared rooftop PV in energy communities: Evidence from AustriaRenewable Energy, 2020
- A comparison of arrangements for increasing self-consumption and maximising the value of distributed photovoltaics on apartment buildingsSolar Energy, 2019
- Opportunities and barriers for photovoltaics on multi-unit residential buildings: Reviewing the Australian experienceRenewable and Sustainable Energy Reviews, 2019
- Optimisation of community shared solar application in energy efficient communitiesSustainable Cities and Society, 2018
- Economic Assessment and Business Models of Rooftop Photovoltaic Systems in Multiapartment Buildings: Case Studies for Austria and GermanyJournal of Renewable Energy, 2018
- Energy-Sharing Model With Price-Based Demand Response for Microgrids of Peer-to-Peer ProsumersIEEE Transactions on Power Systems, 2017
- Overcoming barriers to renewable energy diffusion: business models for customer-sited solar photovoltaics in Japan, Germany and the United StatesJournal of Cleaner Production, 2016
- Analysis of distributed-generation photovoltaic deployment, installation time and cost, market barriers, and policies in ChinaEnergy Policy, 2015
- Energy sharing and matching in different combinations of buildings, CHP capacities and operation strategyEnergy and Buildings, 2014