{"id":8212,"date":"2023-06-22T09:32:56","date_gmt":"2023-06-22T07:32:56","guid":{"rendered":"https:\/\/www.neo-messtechnik.com\/?p=8212"},"modified":"2025-10-07T10:39:16","modified_gmt":"2025-10-07T08:39:16","slug":"solar-inverter-efficiency","status":"publish","type":"post","link":"https:\/\/www.neo-messtechnik.com\/en\/solar-inverter-efficiency","title":{"rendered":"Solar Inverter Efficiency"},"content":{"rendered":"\n<p>Solar inverters with high voltage, large current, and high power are becoming increasingly common. This is done to increase power generation efficiency and reduce installation costs. This article introduces measurement of high voltages, large currents, and high power values when evaluating solar inverter efficiency.<\/p>\n\n\n\n<p>Solar inverters play a crucial role in converting electrical energy for various applications. For example, they convert DC power from solar panels into AC power for the electrical grid. However, this conversion process results in energy loss, making the efficiency of solar inverters an important performance indicator. Efficient inverters effectively utilize generated electrical energy with minimal losses.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"450\" height=\"525\" src=\"https:\/\/www.neo-messtechnik.com\/wp-content\/uploads\/2020\/04\/pqa_side3.png\" alt=\"\" class=\"wp-image-5710\" srcset=\"https:\/\/www.neo-messtechnik.com\/wp-content\/uploads\/2020\/04\/pqa_side3.png 450w, https:\/\/www.neo-messtechnik.com\/wp-content\/uploads\/2020\/04\/pqa_side3-257x300.png 257w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/figure>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_83 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6a11e6699895d\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #000000;color:#000000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #000000;color:#000000\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a11e6699895d\" checked aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.neo-messtechnik.com\/en\/solar-inverter-efficiency\/#PQA8000H_%E2%80%93_ACDC_Efficiency_Analysis\" >PQA8000H &#8211; AC\/DC Efficiency Analysis<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.neo-messtechnik.com\/en\/solar-inverter-efficiency\/#Current_Sensor_Correction\" >Current Sensor Correction<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.neo-messtechnik.com\/en\/solar-inverter-efficiency\/#Wrapping_up\" >Wrapping up<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"PQA8000H_%E2%80%93_ACDC_Efficiency_Analysis\"><\/span>PQA8000H &#8211; AC\/DC Efficiency Analysis<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>To accurately evaluate efficiency, the NEO Messtechniks PQA8000H is an excellent tool. This advanced instrument offers powerful calculation functionality for precise power analysis. By simultaneously capturing voltage and current readings from multiple points in a circuit, it enables comprehensive analysis of power components.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"564\" src=\"https:\/\/www.neo-messtechnik.com\/wp-content\/uploads\/2023\/06\/PV_Efficiency_Schematic_PQA8000-1024x564.png\" alt=\"\" class=\"wp-image-8240\" srcset=\"https:\/\/www.neo-messtechnik.com\/wp-content\/uploads\/2023\/06\/PV_Efficiency_Schematic_PQA8000-1024x564.png 1024w, https:\/\/www.neo-messtechnik.com\/wp-content\/uploads\/2023\/06\/PV_Efficiency_Schematic_PQA8000-300x165.png 300w, https:\/\/www.neo-messtechnik.com\/wp-content\/uploads\/2023\/06\/PV_Efficiency_Schematic_PQA8000-1090x600.png 1090w, https:\/\/www.neo-messtechnik.com\/wp-content\/uploads\/2023\/06\/PV_Efficiency_Schematic_PQA8000-768x423.png 768w, https:\/\/www.neo-messtechnik.com\/wp-content\/uploads\/2023\/06\/PV_Efficiency_Schematic_PQA8000-18x10.png 18w, https:\/\/www.neo-messtechnik.com\/wp-content\/uploads\/2023\/06\/PV_Efficiency_Schematic_PQA8000.png 1255w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>When it comes to current measurement, two common methods are used: current sensors and direct wiring. While direct wiring is challenging for measuring large currents, current sensors provide precise and accurate measurements.<\/p>\n\n\n\n<p>For measuring high voltages, such as those exceeding 1000 V, a power quality analyzer employs various techniques like high-voltage differential probes, voltage transformers (VT, PT), or high-voltage dividers. Voltage transformers are unsuitable for measuring DC or waveforms like PWM, while high-voltage differential probes can introduce measurement errors. In contrast, high-voltage dividers offer precise detection capabilities for both DC and various waveforms like PWM, enabling accurate assessment of efficiency improvements.<\/p>\n\n\n\n<p>Accurate assessment of power loss in a reactor requires measuring not only DC and the standard commercial line frequency (50 Hz\/60 Hz) but also harmonic components. Switching frequencies and harmonics resulting from switching control can impact power input and output in a smoothing DC reactor.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Current_Sensor_Correction\"><\/span>Current Sensor Correction<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Instruments have their unique frequency characteristics, including fluctuations in amplitude error and phase error within the harmonic band. To ensure accurate measurement of power with diverse frequency components, it&#8217;s crucial to evaluate errors across the harmonic band, in addition to representative points like DC and the commercial line frequency. With this correction you can perform solar inverter efficiency measurements.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"658\" height=\"359\" src=\"https:\/\/www.neo-messtechnik.com\/wp-content\/uploads\/2021\/02\/Sensor-correction.png\" alt=\"Sensor-correction\" class=\"wp-image-6573\" srcset=\"https:\/\/www.neo-messtechnik.com\/wp-content\/uploads\/2021\/02\/Sensor-correction.png 658w, https:\/\/www.neo-messtechnik.com\/wp-content\/uploads\/2021\/02\/Sensor-correction-300x164.png 300w, https:\/\/www.neo-messtechnik.com\/wp-content\/uploads\/2021\/02\/Sensor-correction-16x9.png 16w\" sizes=\"auto, (max-width: 658px) 100vw, 658px\" \/><\/figure>\n\n\n\n<hr class=\"wp-block-separator is-style-wide\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Wrapping_up\"><\/span>Wrapping up<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Where can I get more information?<\/p>\n\n\n\n<div class=\"wp-block-kadence-iconlist kt-svg-icon-list-items kt-svg-icon-list-items_2a06d5-5b kt-svg-icon-list-columns-1 alignnone kt-list-icon-aligntop\"><ul class=\"kt-svg-icon-list\"><li class=\"kt-svg-icon-list-style-default kt-svg-icon-list-item-wrap kt-svg-icon-list-item-0\"><div style=\"display:inline-flex;justify-content:center;align-items:center;color:#485156\" class=\"kt-svg-icon-list-single kt-svg-icon-list-single-fe_checkCircle\"><svg style=\"display:inline-block;vertical-align:middle\" viewbox=\"0 0 24 24\" height=\"20\" width=\"20\" fill=\"none\" stroke=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M22 11.08V12a10 10 0 1 1-5.93-9.14\"><\/path><polyline points=\"22 4 12 14.01 9 11.01\"><\/polyline><\/svg><\/div><span class=\"kt-svg-icon-list-text\">Simply click on the link and <strong><a href=\"https:\/\/www.neo-messtechnik.com\/pqa8000\">visit the product site<\/a><\/strong><\/span><\/li><li class=\"kt-svg-icon-list-style-default kt-svg-icon-list-item-wrap kt-svg-icon-list-item-1\"><div style=\"display:inline-flex;justify-content:center;align-items:center;color:#485156\" class=\"kt-svg-icon-list-single kt-svg-icon-list-single-fe_checkCircle\"><svg style=\"display:inline-block;vertical-align:middle\" viewbox=\"0 0 24 24\" height=\"20\" width=\"20\" fill=\"none\" stroke=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M22 11.08V12a10 10 0 1 1-5.93-9.14\"><\/path><polyline points=\"22 4 12 14.01 9 11.01\"><\/polyline><\/svg><\/div><span class=\"kt-svg-icon-list-text\">Request an <strong>online-product demo<\/strong><\/span><\/li><li class=\"kt-svg-icon-list-style-default kt-svg-icon-list-item-wrap kt-svg-icon-list-item-2\"><div style=\"display:inline-flex;justify-content:center;align-items:center;color:#485156\" class=\"kt-svg-icon-list-single kt-svg-icon-list-single-fe_checkCircle\"><svg style=\"display:inline-block;vertical-align:middle\" viewbox=\"0 0 24 24\" height=\"20\" width=\"20\" fill=\"none\" stroke=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M22 11.08V12a10 10 0 1 1-5.93-9.14\"><\/path><polyline points=\"22 4 12 14.01 9 11.01\"><\/polyline><\/svg><\/div><span class=\"kt-svg-icon-list-text\">We are <a rel=\"noreferrer noopener\" href=\"https:\/\/www.neo-messtechnik.com\/en\/about-us\" target=\"_blank\">a simple phone call<\/a> or E-Mail away. We look forward to hear from you<\/span><\/li><\/ul><\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\">\n<p class=\"has-text-align-center\"><strong><a href=\"mailto:sales@neo-messtechnik.com\">Austria<\/a><\/strong><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"has-text-align-center\"><strong><a href=\"mailto:info@schotec.ch\">Switzerland<\/a><\/strong><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"has-text-align-center\"><strong><a href=\"mailto:neo@neomez.com\">South Korea<\/a><\/strong><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"has-text-align-center\"><strong><a href=\"mailto:sales@dewe-tech.cn\">China<\/a><\/strong><\/p>\n<\/div>\n<\/div>\n\n\n\n<p>Your <a href=\"https:\/\/www.linkedin.com\/company\/neo-messtechnik\/\">NEO Messtechnik experts<\/a><\/p>\n\n\n\n<ul class=\"wp-block-social-links is-layout-flex wp-block-social-links-is-layout-flex\"><li class=\"wp-social-link wp-social-link-linkedin  wp-block-social-link\"><a href=\"https:\/\/linkedin.com\/company\/neo-messtechnik\" class=\"wp-block-social-link-anchor\"><svg width=\"24\" height=\"24\" viewBox=\"0 0 24 24\" version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M19.7,3H4.3C3.582,3,3,3.582,3,4.3v15.4C3,20.418,3.582,21,4.3,21h15.4c0.718,0,1.3-0.582,1.3-1.3V4.3 C21,3.582,20.418,3,19.7,3z M8.339,18.338H5.667v-8.59h2.672V18.338z M7.004,8.574c-0.857,0-1.549-0.694-1.549-1.548 c0-0.855,0.691-1.548,1.549-1.548c0.854,0,1.547,0.694,1.547,1.548C8.551,7.881,7.858,8.574,7.004,8.574z M18.339,18.338h-2.669 v-4.177c0-0.996-0.017-2.278-1.387-2.278c-1.389,0-1.601,1.086-1.601,2.206v4.249h-2.667v-8.59h2.559v1.174h0.037 c0.356-0.675,1.227-1.387,2.526-1.387c2.703,0,3.203,1.779,3.203,4.092V18.338z\"><\/path><\/svg><span class=\"wp-block-social-link-label screen-reader-text\">LinkedIn<\/span><\/a><\/li>\n\n<li class=\"wp-social-link wp-social-link-youtube  wp-block-social-link\"><a href=\"https:\/\/www.youtube.com\/channel\/UC0SItHb-UNY0WNUhQtqhB7w\" class=\"wp-block-social-link-anchor\"><svg width=\"24\" height=\"24\" viewBox=\"0 0 24 24\" version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M21.8,8.001c0,0-0.195-1.378-0.795-1.985c-0.76-0.797-1.613-0.801-2.004-0.847c-2.799-0.202-6.997-0.202-6.997-0.202 h-0.009c0,0-4.198,0-6.997,0.202C4.608,5.216,3.756,5.22,2.995,6.016C2.395,6.623,2.2,8.001,2.2,8.001S2,9.62,2,11.238v1.517 c0,1.618,0.2,3.237,0.2,3.237s0.195,1.378,0.795,1.985c0.761,0.797,1.76,0.771,2.205,0.855c1.6,0.153,6.8,0.201,6.8,0.201 s4.203-0.006,7.001-0.209c0.391-0.047,1.243-0.051,2.004-0.847c0.6-0.607,0.795-1.985,0.795-1.985s0.2-1.618,0.2-3.237v-1.517 C22,9.62,21.8,8.001,21.8,8.001z M9.935,14.594l-0.001-5.62l5.404,2.82L9.935,14.594z\"><\/path><\/svg><span class=\"wp-block-social-link-label screen-reader-text\">YouTube<\/span><\/a><\/li><\/ul>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Solar inverters with high voltage, large current, and high power are becoming increasingly common. This is done to increase power generation efficiency and reduce installation costs. This article introduces measurement of high voltages, large currents, and high power values when evaluating solar inverter efficiency. Solar inverters play a crucial role in converting electrical energy for [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":8240,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[50,1],"tags":[],"class_list":["post-8212","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news-and-trends","category-pq-essentials"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Solar Inverter Efficiency - NEO Messtechnik<\/title>\n<meta name=\"description\" content=\"Discover the Importance of Solar Inverter Efficiency measurements at your solar power plant. 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