Annotations to the Institutes articles on the topic Green energy

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ANNOTATION to the article № 15         go to article Roadside Solar Power Plants with Water-Based Thermal Energy Storage and Heat Pumps This paper presents an energy storage system for roadside solar power plants (SPPs) based on the use of a water-based thermal energy storage and a heat pump. The main goal of the complex is to accumulate that portion of solar energy that the power grid does not receive during the sunny day, and then transfer this energy to the grid at night. Unlike the conventional approach, in which storage efficiency is evaluated exclusively by round-trip efficiency, this work proposes to assess the effectiveness of the Complex by the total electrical energy actually absorbed by the grid over a 24-hour period. It is shown that, due to the use of a heat pump and the operation of all thermal machines strictly in optimal regimes, a high energy and economic effect of up to 75% of previously curtailed solar energy can be achieved, even with moderate conversion efficiencies. The paper describes the composition of the Complex, its operating modes during daytime and nighttime, the results of thermodynamic analysis, an evaluation of electrical energy efficiency, approximate capital expenditures, and environmental advantages compared to electrochemical batteries. The specific cost of energy storage is estimated to be 5–10 times lower than that of electrochemical batteries: CAPEX ≈ 34 USD/kWh or 500 USD/kW, while the cost of nighttime electricity is approximately 1 cent/kWh, assuming a storage lifetime of 30–50 years. Author's name : Rozenberg Simyon E-mail : Date of publication          07.01.26

ANNOTATION to the article № 14         go to article Water accumulators of energy and heat pumps for solar power plants on the walls of high-rise buildings The article examines the energy and economic characteristics of solar power plants that can be built on the walls of multi-story residential and office buildings. Each such station on the walls will be able to provide consumers with a significant reduction in energy consumption from the network by 40-50%. Equipping the stations with innovative water accumulators of energy turns solar power plants into a source of 24-hour electricity. The flexible use of this adjustable 24-hour energy source provides significant benefits for both the consumer and the grid. Solar power plants on the walls of multi-story residential and office buildings bring generation sources closer to energy consumers, which reduces the load on power grids and reduces the need to build new power lines. The Complex delivers 224,000 kWh of power to the consumer annually, including 151,000 kWh during the day and 73,000 kWh during non-sunny times of the day. The system in question combines solar panels, water accumulators of energy, and heat pumps and expanders. This system is 10-20 times cheaper than electrochemical batteries of equivalent energy capacity, offers twice the service life and is environmentally friendly. The proposed combination of equipment achieves an efficiency similar to that of pumped storage power plants. The system's capital expenditure (CAPEX) is approximately: US$ 32/kWh or US$ 500/kWh, and the night energy price is 1.4 ¢/kWh. Research and development of this technology within the framework of R & D will create opportunities for increasing the energy efficiency and environmental friendliness of solar power plants. The market for the storage technology under consideration is very relevant and amounts to 1000 GW. Author's name : Rozenberg Simyon E-mail : Date of publication          02.01.26

ANNOTATION to the article № 13         go to article Water accumulators of energy for solar power plants The article discusses a technical solution that transforms any solar panel field into a day-and-night energy source. The system in question combines solar panels, water accumulators of energy and thermal machines - compressors and expanders. This environmentally friendly system includes energy storage devices that are 10-20 times cheaper than electrochemical batteries of equivalent energy capacity and offer twice the service life. The system supplies the consumer with 79 % of the energy that these solar panels would have generated during the day if directly connected via an inverter, achieving efficiency comparable to pumped-storage power plants. The system is an innovative unique combination of devices and therefore is promising for patenting. The system does not require the allocation of separate land plots, since the equipment is installed under the solar panels, which saves space and reduces the environmental impact. Author's name : Rozenberg Simyon E-mail : Date of publication          02.01.26

ANNOTATION to the article № 12         go to article SOLAR PHOTOVOLTAIC POWER PLANTS IN THE CITY The article discusses the energy and economic characteristics of solar power plants that can be built in the city. Solar power plants in urban areas can be placed on rooftops, on awnings over parking lots, on awnings over roads, as well as on the walls of multi-storey residential and office buildings. It is shown that it is most effective to place solar power plants on the walls of high-rise buildings. Each such station will be able to provide residents with a reduction in energy consumption from the network by a quarter or a third. Author's name : Rozenberg Simyon E-mail : Date of publication          03.09.23

ANNOTATION to the article № 11         go to article Authors propose building a pumped storage complex between the northern and southern Basins of the Dead Sea, including a Pumped Storage Power Plant (PSPP), an upper basin and a turbine conduit. Author's name : Kachan Anatoly, Rozenberg Simyon E-mail : semyon.rozenberg@gmail.com Date of publication          17.11.21

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Total Articles: 9 

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