Abstract
Efficient utilization of renewable generation inside microgrids remains challenging. In most existing studies, the goal is to optimize the energy cost of microgrids by working in synergy with the main grid. This work aimed at maximizing the self-consumption of on-site photovoltaic (PV) generation using an electrical storage, as well as demand response solutions, in a building that was also capable of interacting with the main grid. Ten-minute resolution data were used to capture the temporal behavior of the weather. Extensive mathematical models were employed to estimate the demand for hot-water consumption, space cooling, and heating loads. The proposed framework is cast as mixed-integer linear programming model while minimizing the interaction with the grid. To evaluate the effectiveness of the proposed framework, it was applied to a typical Finnish household. Matching indices were used to evaluate the degree of overlap between generation and demand under different PV penetrations and storage capacities. Despite negative correlation of PV generation with Finnish seasonal consumption, a significant portion of demand can be satisfied solely with on-site PV generation during the spring and summer seasons.
Highlights
In recent years, a rapid growth of electricity demand was observed around the globe, which resulted in increasing energy prices and caused harmful environmental impacts such as carbon emissions
This paper proposes a framework to maximize the self-utilization of on-site PV generation in a grid-connected detached house during different times of the year
The mixed-integer nonlinear programming (MINLP) model was reformulated into a mixed-integer linear programming (MILP) model that could be effectively embedded into an home energy management system (HEMS)
Summary
A rapid growth of electricity demand was observed around the globe, which resulted in increasing energy prices and caused harmful environmental impacts such as carbon emissions. If a net ZEB is located in high latitude, it has high PV generation in the summer and high demand in the winter which may balance each other [11] Such a building may supply large amounts of energy when the grid does not need it. This paper proposes a framework to maximize the self-utilization of on-site PV generation in a grid-connected detached house during different times of the year This concept was naturally tailored toward a net ZEB agenda. The goal of this study was to determine the degree of being independent while relying on PV generation as much as possible This was achieved by minimizing the power exchanges with the grid that resulted in maximizing the on-site PV consumption while exploiting flexible loads and storage devices. 2 discusses the details used in this study; Section 3 presents the optimization model in detail; case studies and simulation
Sign-in/Register to view highlights & summary 
Published Version (
Free)
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
