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Integration of renewable energy sources (RES) into power grids is a significant global trend impacting various problems in specific conditions of particular countries. New digital solutions need to be prepared to operate RES more reliable and affordably. RES can be used also for electricity and heat supply of emergency shelters, but control of RES efficiency for this proposal is still not clear. Integration of RES DT in control process of shelter-city can allow it to be the prosumer and to be one more benefit for power grid. Implementation of Digital Twin (DT) of RES to management of their day-to-day operations and performance optimisation increase efficiency and speed up the binding target EU that the share of electricity produced by renewables must grow to 50 % by 2030. The digital transformation helps to decarbonize energy supply, respectivelly reliance on fossil fuels and promoting the progress and integration of renewables into energy system and to increase its resilience. Vision 2030 on Market Design and System Operation, ENTSO-E identify four key elements as major drivers for the power system for the next 10 years: the improvement of renewables, the acceleration of RES utilisation, the increase of decentralized resources, and digitalization. Published reports accompanied the European Commission’s action plan and support the digitalization of the energy sector, CORDIS Results Pack presented in EU-funded research projects develop digital solutions (including DT) to build more secure and diversified energy supply, improve efficiency and resilience, reduce emissions and provide citizens innovative energy services and impact the efficiency of them.
The idea of this work is to theoretically and experimentally substantiate the energy-efficient power and heat supply of shelters for various purposes using renewable energy sources and digital twin. Research focuses mainly on solar energy. Recommendations design power and heat supply of shelters with RES are based on simulations in software PVSol Premium. DT of RES and shelters can be used in three directions:
1. DT of shelters with RES. The design and operation of power and heat supply and consumption of shelters and RES use DT technology.
2. DT of RES. This case means improving the method of assesment technical condition of the RES, for example PV system. This method proposes to determine index of resudial resourses of RES and to implement the results into DT.
3. DT of microgrid with shelters. This method asses the efficiency of RES in power grid and improves the supply of shelters. Assesment of index quality RES in power grid will use criterion programming, ANN and creation of DT to control RES.