Renewables-2023

Israeli Energy Minister Karine Elharrar said, “As David Ben-Gurion put it, security is energy. We need a combination of different types of energy, and the crisis in Europe shows that we can’t give up on any of them at the moment. We must lead the world of energy https://english.tau.ac.il/Green_Hydrogen_2023 Over 90% Efficiency The new method was developed by doctoral student Itzhak Grinberg and Dr. Oren Ben-Zvi, under the guidance of Prof. Iftach Yacoby of the School of Plant Sciences and Food Security at the Wise Faculty of Life Sciences and Prof. Lihi Adler-Abramovich of the Goldschleger School of Dental Medicine and the Center for Nanoscience and Nanotechnology. The promising research results were published in the prominent journal Carbon Energy, focusing on advanced materials and technology for clean energy and CO2 emission reduction. “Hydrogen is very rare in the atmosphere,” explains Itzhak Grinberg, “although it is produced by enzymes in microscopic organisms, which rece...

October 30, 2025 It is an important step towards the implementation of H2 energy from a dream to reality by following strategy. (1) distributed renewable energy generation cheaper than USD 0.01 / kWh, (2) well scalable liquid or liquified fuels production destributely by the said RE energe and for storage, (3) such fuels can be used for powering of any designed shedule. They are especialy important in war-time and against terrorists' attack (4) "Breeding investment', i.e. reinvesting of such excess profits allows to accelerate full implementation of the system. David Judbarovski, systems engineering, principle inventor, retired. judbarovski.blogspot.com, judbarovski@gmail.com. Abstract. Estimations: Hyderogen by USD 133 /ton, NH3 by USD 17 /ton, CH2 (oil) by USD 4.6 /bbl, CH4 by USD 18 /1000 m3. All those by Opex. See a short disclosure just bellow. Short disclosure. (1) Hydrogen. Here CO2 and CO are circular and practicaly free. (a) CO2 + H2 = CO + H2O + 41 kJ. (b) (CO + ...

Incredibly cheap and zero-carbon NH3. It is an important step towards the implementation of H2 energy from a dream to reality by following strategy. (1) distributed renewable energy generation, (2) well scalable NH3 production by the said RE energy on saveful places either not so far away of dense settlement, or for the NH3 storage tanks, (3) conversion of NH3 in electricity, of any schedule for powering. David Judbarovski, systems engineering, principle inventor, retired. judbarovski.blogspot.com, judbarovski@gmail.com. Short disclosure. Here CO2 and CO are circular and practicaly free. (1) CO2 + H2 = CO + H2O + 41 kJ. (2) (CO + H2O) + 0.5 * H2O = 0.5 * (H2 + 0.5 * O2) + (CO2 + H2) = CO + 1.5 H2O = CO2 + 1.5 H2 + 0.25 O2 + 80 kJ of such thermochemistry + 41 kJ = 121 = USD 133 /Mmol heat. dG = 80 kJ + 6 * T, and totally Q(H) = USD 133 / ton H2. 0.5 N2 + 1.5 H2 = NH3 - 46 kJ. 46 Mmol heat * (0.3 effectiveness heat in electricity) * (0.03 tariffs) / 3,600 = USD 115.[1]. Here N2 is pra...

David Jdbarovski, systems engineering, principle inventor, 85, retired, Israel. judbarovski.blogspot.com, judbarovski@gmail.com , CV-2023, Davidjud.blogspot.com/2023/04, posted on April 27, 2023. Abstract. Solar thermo-electric generator of about 1 m2 solar flux comprise a tiny antenna after solar energy heating upto 1200 C in focal spot by (b) a dish concentrator and (c) a solar tracker comprise a thin film planar mirror moved by two tiny and cheap servomotors controlled by simplest sensor, the said all are motionless, except of the said tracker. It was estimated roughly and shortly whithout serious optimisation as more than 45% efficiency of solar into electricity, while a cost of the energy system seriously depended on regions' implementation, but for moderate climate it is about USD 30-50 / kW.

Breakthrough cheap and zero-carbon hydrogen production can change a game in chemistry and energetics. David judbarovski, systems engineering, principle inventor, retired. judbarovski.blogspot.com, judbarovski@gmail.com. (a) CO2 [1] + H2 = CO + H20 + 41 kJ. Such reaction is known (1780 yr., rewersible WGSR - Water-gas shift reaction) and circular here, so is for free. (b) The novelty is thermochemistry being (CO + H20) + 0.5 H2O = O.5 * (H2 + 0.5 O2) + (CO2 + H2) + (- 41 + 242/2) = 80 kJ. dG = 80,000 + 6 * T. So it needs catalysts , can be the iron, and additional heating, and H2 is 121 kJ * 4 /3.6 [2], [3] = USD 133 / ton H2, OPECS. References. [1] CO2 mass production from the air very cheaply, judbarovski.blogspot.com/2025/01, posted on 12 January, 2025 [2] Breakthrough cheap Re energy, davidjud.blogspot.com/2024/06, posted on 21 June, 2024. [3] Solar and Wind as cheap as 0.4 cent / kWh judbarovski.blogspot.com/2025/02, posted 11 February, 2025. [4] CV-2023, davidjud.blogspot.com/202...

Отличный выбор — стиль Nature Energy требует академической строгости, но допускает ясный, энергичный тон и ориентацию на прикладной результат. Ниже — переработанная версия статьи в формате Nature Energy (адаптированный научный стиль, правильная структура, единицы измерения, сохранение сути идей автора). --- A compact and hazard-free method for ammonia-based hydrogen storage and transport enabling realistic hydrogen economics David Judbarovski Independent researcher, Systems Engineering, Principal Inventor Email: judbarovski@gmail.com Blog: judbarovski.blogspot.com --- Abstract Safe, scalable, and low-cost hydrogen storage remains a major obstacle in achieving a global hydrogen economy. Here we present a simple and compact approach based on dissolving ammonia (NH₃) in water at mild conditions (10 °C, 1 atm), achieving up to 900 g NH₃ per kg of H₂O, equivalent to roughly 1,000 L of gaseous NH₃ per liter of solution. This method allows three orders of magnitude higher volumetric e...

Профессиональный анализ представленной статьи (или, точнее, краткого тезиса или аннотации), посвященной прорывному методу производства водорода, выявляет как амбициозные сильные стороны, так и существенные методологические и презентационные слабости. 📝 Профессиональная оценка и анализ статьи Сильные стороны (Strengths) Смелость и актуальность заявленной цели: Автор сразу заявляет о цели, которая является одним из главных вызовов современной энергетики и химии: дешевое и безуглеродное производство водорода. Эта тема крайне актуальна для борьбы с изменением климата и перехода к водородной экономике. Ясное указание на химические реакции: Автор приводит две конкретные химические реакции, лежащие в основе метода (a и b). Это обеспечивает минимальную научную основу для обсуждаемого процесса. Акцент на цикличности и доступности сырья: Утверждение, что CO 2 ​ является "свободным" (free here) из-за его цикличности (a), является ключевым экономическим преимуществом, если это тех...

October 03, 2025 Extremely compact and hazard free way to store, and delivery, and usage of NH3, opening a door for realistic hydrogen economics. David Judbarovski, systems engineering, principle inventor, 85, retired. judbarovski.blogspot.com, judbarovski@gmail.com. Abstract. NH3 of USD 50 /ton, see [1], is produced from the air and water and from the cheapened hydrogen of USD 157 /ton, Opex, see [1a], with a help of my supercheap renewable energy conceptions, see [2], [2a], such NH3 being dissolved at 10 Cantigrade in the water 900 g / kg water, it is about 1000 liter / liter such solution, hence it allows to transport and to store a huge amounts of NH3 at mild conditiins and a three order of magnitude more compact and cheaper than any others conventional alternatives. References. [1] Incredibly cheap and zero-carbon NH3 production, judbarovski.blogspot.com/2025/09, posted on Sept. 21, 2025. [1a] Breakthrough cheap and zero-carbon hydrogen production, judbarovski.blogspot.com/2025/09...