학술논문

Case Studies of Energy Grid Hybridization in a Northern European City
Document Type
Periodical
Source
IEEE Transactions on Sustainable Energy IEEE Trans. Sustain. Energy Sustainable Energy, IEEE Transactions on. 10(3):1362-1369 Jul, 2019
Subject
Power, Energy and Industry Applications
Geoscience
Computing and Processing
Resistance heating
Boilers
Heat pumps
Cogeneration
Waste heat
Co-generation
hybrid power systems
power system simulation
smart grids
sustainable development
Language
ISSN
1949-3029
1949-3037
Abstract
We present two case studies on energy grid hybridization , where the distribution networks of multiple energy sectors are more tightly coupled together to increase their flexibility via mutual transfer of energy. The hybridization approaches were developed in cooperation with the local stakeholder in a northern European city, comprising of a short-term setup with a low adoption barrier as well as a long-term scenario with more involved grid coupling using more efficient devices. For a range of coupling device configurations, device locations, control algorithms, and assumptions on utility prices and energy demand, we investigate the influence of the hybridization on the energy mix, $\text{CO}_2$ emissions, and energy costs. The studies have been conducted using a co-simulation toolchain developed by the European Project OrPHEuS specifically for fine-grained technical simulation of multi-carrier grids. Our results confirm that the hybrid grid approach is an effective means to increase the share of renewable energies and reduce operational costs. It also turns out that precise forecasts of energy demand and utility prices are essential for appropriate dimensioning of the coupling points.