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<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Computational nanotechnology</journal-id><journal-title-group><journal-title xml:lang="en">Computational nanotechnology</journal-title><trans-title-group xml:lang="ru"><trans-title>Computational nanotechnology</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2313-223X</issn><issn publication-format="electronic">2587-9693</issn><publisher><publisher-name xml:lang="en">YUR-VAK</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">350201</article-id><article-id pub-id-type="doi">10.33693/2313-223X-2025-12-3-203-208</article-id><article-id pub-id-type="edn">CBCVDJ</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>NANOTECHNOLOGY AND NANOMATERIALS</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>НАНОТЕХНОЛОГИИ И НАНОМАТЕРИАЛЫ</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Optimizing tilt angle for enhanced solar panel efficiency: A case study in Parkent, Uzbekistan</article-title><trans-title-group xml:lang="ru"><trans-title>Оптимизация угла наклона для повышения эффективности солнечных панелей: на примере Паркента, Узбекистан</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0003-5106-6704</contrib-id><name-alternatives><name xml:lang="en"><surname>Nosirov</surname><given-names>Mirjalol U. o‘g‘li</given-names></name><name xml:lang="ru"><surname>Носиров</surname><given-names>Миржалол Ужабой уғли</given-names></name></name-alternatives><address><country country="UZ">Uzbekistan</country></address><bio xml:lang="en"><p>PhD student</p></bio><bio xml:lang="ru"><p>докторант</p></bio><email>m.nosirov@imssolar.uz</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sobirov</surname><given-names>Yuldash B.</given-names></name><name xml:lang="ru"><surname>Собиров</surname><given-names>Юлдаш Бекжонович</given-names></name></name-alternatives><address><country country="UZ">Uzbekistan</country></address><bio xml:lang="en"><p>Dr. Sci. (Eng.)</p></bio><bio xml:lang="ru"><p>доктор технических наук</p></bio><email>m.nosirov@imssolar.uz</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7206-5220</contrib-id><contrib-id contrib-id-type="spin">3075-6013</contrib-id><name-alternatives><name xml:lang="en"><surname>Nurmatov</surname><given-names>Shavkat R.</given-names></name><name xml:lang="ru"><surname>Нурматов</surname><given-names>Шавкат Расулматович</given-names></name></name-alternatives><address><country country="UZ">Uzbekistan</country></address><bio xml:lang="en"><p>Cand. Sci. (Eng.)</p></bio><bio xml:lang="ru"><p>кандидат технических наук</p></bio><email>sh.nurmatov@imssolar.uz</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Rakhimov</surname><given-names>Khamdam Yu.</given-names></name><name xml:lang="ru"><surname>Рахимов</surname><given-names>Хамдам Юлдашевич</given-names></name></name-alternatives><address><country country="UZ">Uzbekistan</country></address><bio xml:lang="en"><p>Dr. Sci. (Phys.-Math.)</p></bio><bio xml:lang="ru"><p>доктор физико-математических наук</p></bio><email>bbilolzon@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Institute of Materials Science, Academy of Sciences of Uzbekistan</institution></aff><aff><institution xml:lang="ru">Институт материаловедения Академии наук Узбекистана</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-11-02" publication-format="electronic"><day>02</day><month>11</month><year>2025</year></pub-date><volume>12</volume><issue>3</issue><fpage>203</fpage><lpage>208</lpage><history><date date-type="received" iso-8601-date="2025-11-07"><day>07</day><month>11</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Yur-VAK</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Юр-ВАК</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Yur-VAK</copyright-holder><copyright-holder xml:lang="ru">Юр-ВАК</copyright-holder><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://www.urvak.ru/contacts/</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.rcsi.science/2313-223X/article/view/350201">https://journals.rcsi.science/2313-223X/article/view/350201</self-uri><abstract xml:lang="en"><p>The efficiency of photovoltaic (PV) systems is significantly influenced by the tilt angle of solar panels, especially in regions with varying solar insolation across seasons. This study investigates the optimal tilt angle for a 10 kW solar-powered system installed in the Parkent district of Uzbekistan, a region characterized by a continental climate and high solar irradiance. Based on empirical formulas, the research identifies 33° as the fixed optimal tilt angle for year-round operation. Seasonal adjustments offer marginal gains, with two- and four-season tilt configurations improving performance by up to 4%. The findings highlight the importance of site-specific tilt optimization in maximizing solar energy harvesting, which is particularly relevant for autonomous renewable energy systems used in hydrogen production.</p></abstract><trans-abstract xml:lang="ru"><p>Эффективность фотоэлектрических (ФЭ) систем в значительной степени зависит от угла наклона солнечных панелей, особенно в регионах с сезонными колебаниями солнечной инсоляции. В данном исследовании рассматривается оптимальный угол наклона для солнечной электростанции мощностью 10 кВт, установленной в Паркентском районе Узбекистана –регионе с континентальным климатом и высокой солнечной активностью. На основе эмпирических формул установлено, что фиксированный оптимальный угол наклона для круглогодичной эксплуатации составляет 33°. Сезонная корректировка угла наклона обеспечивает незначительное увеличение выработки – до 4% при использовании двух- и четырехсезонных конфигураций. Полученные результаты подчеркивают важность оптимизации угла наклона с учетом местных условий для максимального сбора солнечной энергии, что особенно актуально для автономных систем возобновляемой энергетики, применяемых для производства водорода.</p></trans-abstract><kwd-group xml:lang="en"><kwd>tilt angle</kwd><kwd>photovoltaics</kwd><kwd>hydrogen production</kwd><kwd>optimal tilt angle</kwd><kwd>solar energy</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>угол наклона</kwd><kwd>фотоэлектрические системы</kwd><kwd>производство водорода</kwd><kwd>оптимальный угол наклона</kwd><kwd>солнечная энергия</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Chu S., Majumdar A. Opportunities and challenges for a sustainable energy future. Nature. 2012. No. 488. Pp. 294–303.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Breyer C. et al. 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