The article reveals the issue of the neural networks’ applicability, considering the possibility of “mixing” the data set of cyclonic activity indicators in the North Atlantic as parallel inputs for constructing a long-term forecast of the air temperature anomaly in the Arctic region. The importance of considering this factor in the implementation of neural forecasting is determined by the fact that the North Atlantic cyclones provide the supply of heat and moisture to the polar regions and can also modify the ice cover of the Arctic Ocean. A nonlinear autoregression model with external inputs was used as a primary neural network. The training was carried out on data changes in temperature anomalies with a monthly resolution with different observation durations. The training sample is composed of three 20 year vectors, randomly selected from the available set. The software environment STATISTICA Automated Neural Networks was used as a tool in work, which allows researching data preparation to testing a trained neural network. Among all the considered variants of the network parameters, the best results of training the neural network were obtained with 15 hidden layers and a signal delay of 2 samples (simulation clock). Testing the predictive properties of the obtained neural network, carried out on a selection of unused data in training, and showed quite good results. In all cases, the correlation coefficient between the input data and the forecast was more than 0.85. The root-mean-square deviation (model error) did not exceed 0.5 °C. Despite the obtained high forecasting accuracy, it should be assumed that in further studies of building a temperature forecasting system, it is necessary to provide a procedure for periodic retraining of the network to consider the variability of parameters with “mixing” and other parallel inputs characterising the modern climatic dynamics of the Arctic region. Such a retraining scheme can be easily implemented using the methodology for constructing a neural model proposed in work.

The article analyses the volume of electricity production in Russia at solar and wind power plants. The conducted studies allowed the authors to assess the potential for reducing carbon dioxide (СО2) emissions by using these renewable energy sources. The role of renewable energy in the energy supply of Russian regions and in the reduction of СО2 emissions is assessed. The regions of Russia were ranked by the level of decarbonisation due to use of renewable energy sources, and there was assessed the role of renewable energy in the energy balances of the country’s regions. In 2023 due to the operation of power facilities without the use of fossil fuels it is possible to avoid emissions of 4.75 million tons. The study revealed a positive trend in reducing СО2 emissions in all leading in RE regions of Russia from 2020 to 2030. According to the forecast using neural networks the total reduction in СО2 emissions due to the use of renewable energy sources in all the regions under consideration may amount to approximately 0.46% of the total СО2 emissions in Russia in 2022 by 2030. This shows not so significant prospects for renewable energy in terms of decarbonisation while maintaining the current place of increasing the capacity of their use in Russia. However, for some regions located in the Southern Federal District, the development of renewable energy sources is of great importance for improving the environmental situation and shows the need for further development and support of domestic technologies.

Авторы рассматривают в статье новые подходы к организации энергетического жизнеобеспечения с использованием местных энергоресурсов на основе применения новых технологий использования биомассы, накопления энергии и водорода.

When constructing solar aerobaric power plants, it is necessary to develop effective ways to accelerate convective flows initiated by the action of a high-temperature working fluid heated due to the concentration of solar radiation, accumulation of dissipated heat losses and the use of the greenhouse effect. As an option for organizing the flow in the aerodynamic module of the solar aerobaric power plants, article considered a diagram of the cyclotron acceleration of the flow during horizontal and vertical transfer of convective air currents formed in cells containing alternately located cold and hot side boundaries and differently heated upper and lower bases.

Центральная Азия в российской геополитике обычно рассматривается в увязке с интересами преимущественно Китая и отчасти США. В настоящей статье эта проблема рассмотрена более предметно, в частности применительно к задачам энергетической и водной инфраструктуры.

The article discusses the main problems of the using of biomass as a fuel, including the fuel use of biomass as an innovative way to generate clean energy. It is shown that according to the development of technology for the production of renewable energy sources, energy costs will decrease, and the operating time of the devices and, accordingly, their productivity will increase. Ultimately, this will allow to get a positive result, i.e. reduce harmful emissions from energy production. The methodology basis on the open statistics data and analysis of the energy balance of new energy production technologies are considered. The motivation for the using renewable energy sources in industrialized and developing countries is investigated. A review of new technologies for the using biomass as a fuel is made, which allows for efficient processing of biomass, including gasification, co-production of heat and electricity, fuel use of combustible gases generated at landfills, and production of fuel for transport in the form of methanol and biodiesel.

The chapter focuses on different aspects and challenges of power supply for remote energy consumers in the Russian Arctic. The authors discuss the potential use of renewable energy, some specified technological features and risks related to the broader deployment of decentralized renewable energy systems in the Arctic region. Even though there is limited experience of renewable energy systems installation in the Russian Arctic and greater technological challenges, the authors see it as a potential opportunity to contribute to innovative and sustainable development of the region. The authors underline the potential synergistic effect of broader deployment of renewable energy systems in the Russian Arctic. The key argument is that a sustainable and efficient energy system will open new development opportunities and stimulate future socioeconomic development of the region through the use of local and renewable energy resources and the implementation of new power generation modes and technologies.

Abstract The article provides an overview of the existing problems arising in the conversion of radiant energy into the energy of currents, as well as in the transformation of electrical energy in solar convective-vortex power plants. On the practical example of a pilot industrial solar aerobaric power plant, the possibility of implementing solar-convective-vortex power systems is illustrated. As a result of a comprehensive analysis, factors have been determined that allow creating optimal conditions for controlling the processes of concentration of thermal energy of solar radiation into the power of tornado-like flows.

The paper reveals the problems of management organizing of functioning and development of smart metropolis (Smart City) integrated with the power supply system. A lot of attention is paid to ways of solving these problems through the implementation of Smart Grid technologies and practices taking into account the SoS (system of systems) approach. In the context of this research work, the Smart Grid is considered as one of the first SoS subsystems of the Smart City. A concept of a new electrical network is also presented in the paper. This electrical network has qualitatively unique characteristics of adaptability, stability, and throughput, allowing to ensure reliable and uninterrupted power supply to consumers in the new conditions of rapid and stochastic changes in generation and consumption volumes, as well as the multidirectional nature of information and electricity flows (from the consumer to the network).

The analysis of the main directions of renewable energy in Africa, as a factor in sustainable development and reduction of greenhouse gas emissions is performed. The ecological problems of the modern and prospective development of the energy complex of African countries are considered. For African countries the issue of ensuring reliable and environmentally friendly access to electricity for the population is extremely acute. It is shown, that the electricity demand for industry in Sub-Saharan Africa the most problematic region is growing on a very large scale. The construction of new large coal-fired thermal power plants in the required volumes will lead to serious environmental and climatic consequences. The study of regional data allowed us to conclude that PV solar systems are of priority importance for increasing people’s access to electricity in rural SubSaharan Africa. Based on numerous materials from international energy structures the estimates and calculations of volumes of reduction of greenhouse gas emissions due to the use of renewable energy sources as an alternative to carbon fuel are carried out. The study has shown that of particularly great importance for reducing CO2 emissions in Kenya is the development of geothermal energy.

The article provides an overview of the tasks of studying heat and mass transfer in reservoirs with hydraulic flows of circulating water from turbine condensers. The conditions of effective reduction of the temperature of the water from the reservoir via a slotted water intake working on the principle of a hydraulic siphon are considered. The scheme of the slotted siphon-type water intake is presented, as well as its technical implementation. The system of differential equations for the numerical calculation of the parameters of cooling circulating water in reservoirs with siphon culverts is designed. An assessment of the effectiveness of the use of hydraulic slit water intakes in the cooling systems of the recycled water of thermal power plants is contained in the conclusion.

Current problems and the tasks of increasing the reliability of the equipment designs for utilizing the energy of sea waves are described in the article. The requirements for the protection of float and buoy structures from storm impacts by immersing them in undisturbed water layers using rotary engines articulated with a wave power station are formulated. Ways to protect wave converters from storm impacts are proposed.