The objective of this project is to provide a comprehensive electric and thermal energy supply solution for an isolated residential and industrial complex. The project scope includes assessing energy demand, determining the optimal equipment configuration, conducting economic feasibility studies, and implementing a hybrid energy system based on various renewable energy sources (RES) and energy-saving technologies.
The research was completed in the following areas:
- analysis of existing technical solutions and practical recommendations for renewable energy supply systems;
- calculation of the optimal energy mix, determining the best ratio for energy supply from different renewable sources;
- development of modular designs for hybrid energy hub;
- equipment selection and optimization of performance parameters of a RES-based hybrid system;
- development of technical design for dynamic load balancing and sustainable use of available energy sources.
Based on the research findings, a comprehensive RES-based energy supply system for social settlement has been developed. The project is currently in the practical implementation phase.
KEY RESULTS
The eco-settlement development site has been evaluated for the natural renewable energy potential and conventional electricity supply options.
The energy demand assessment has been carried out by evaluating the construction solutions for the residential buildings designed on the site.
Five types of buildings have been assessed for heating and hot water demand, and three heating options were considered: an electric boiler (4.5 kW), a heat pump (1.88 kW), and dynamic electric thermal storage (2.4 kW).
Based on the energy demand, the available capacities of the existing power grids in the settlement area with voltages of 110 kV, 35 kV, and 10 kV have been determined. The calculated load for the buildings is adjusted for the 0.4 kV busbars of the 35/0.4 kV transformer substation, considering the three heating options.
The wind pattern in the settlement site is adequate for the efficient use of state-of-the-art wind turbines with sufficiently tall towers (50-80 m). An analysis of the break-even points for the key parameters proves the project’s profitability, provided that the surplus energy is sold at a special tariff for renewable energy sources (RES).”
Various options for the structural and technological arrangement of photovoltaic modules on residential buildings of 5 types and above the parking lot have been determined and modeled.
The equipment for the photovoltaic plant (photovoltaic modules) has been preliminarily selected, and the installed capacity of the PV plant has been calculated. The electricity output by the photovoltaic plant has been calculated based on average solar radiation data.
An evaluation of the potential use of agricultural waste for heating purposes has been conducted, and the recommendation has been provided to use biomass boilers with specific characteristics.