{"id":80919,"date":"2024-01-10T14:12:10","date_gmt":"2024-01-10T04:42:10","guid":{"rendered":"https:\/\/www.solarquotes.com.au\/blog\/?p=80919"},"modified":"2024-01-10T14:12:10","modified_gmt":"2024-01-10T04:42:10","slug":"longi-hbc-record","status":"publish","type":"post","link":"https:\/\/www.solarquotes.com.au\/blog\/longi-hbc-record\/","title":{"rendered":"Another Solar Efficiency Record for LONGi"},"content":{"rendered":"

\"scientist<\/p>\n

Less than two months after setting a 33.9% efficiency record<\/a> for crystalline silicon-perovskite (CSP) tandem cells, LONGi is back with another record claim.<\/p>\n

This week, LONGi Solar<\/a> received certification from a German lab that its crystalline silicon heterojunction back-contact (HBC) solar cells had claimed their own record, with efficiency of 27.09%.<\/p>\n

The certification came from the Institute for Solar Energy Research Hamelin (ISFH).<\/p>\n

\n

What are crystalline silicon heterojunction back-contact (HBC) solar cells?<\/h2>\n

 <\/p>\n

Heterojunction refers to the junction where two different materials meet. In the context of solar cells, it usually involves a layer of amorphous silicon (a form of silicon that doesn’t have a crystalline structure) placed on top of crystalline silicon. This heterojunction can more efficiently collect and transport the electrical charges generated when sunlight hits the solar cell.<\/p>\n

 <\/p>\n

Back-Contact solar cells have all their metal electrical contacts on the backside of the cell. This design allows the entire front surface to capture sunlight without being partially shaded by metal contacts, making the cell more efficient.<\/p><\/blockquote>\n

Higher efficiency with reduced manufacturing costs<\/h2>\n

In a media release<\/a>, LONGi said the 27.09 percent efficiency was achieved using an all-laser patterning process to overcome the high patterning cost of back-contact cells.<\/p>\n

Patterning is used to create distinct areas for positive (p-type) and negative (n-type) contacts on the backside of the HBC cell. Before the laser process, manufacture of HBC cells relied on an expensive photolithographic patterning process.<\/p>\n

By reducing the use of transparent conductive oxide layers, LONGi also said it uses just 20 percent of the element indium, compared to traditional bifacial heterojunction cells.<\/p>\n","protected":false},"excerpt":{"rendered":"

Less than two months after setting a 33.9% efficiency record for crystalline silicon-perovskite (CSP) tandem cells, LONGi is back with another record claim.<\/p>\n","protected":false},"author":23,"featured_media":80929,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[678],"tags":[],"class_list":["post-80919","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-solar-battery-news","entry"],"acf":[],"yoast_head":"\nAnother Solar Efficiency Record for LONGi<\/title>\n<meta name=\"description\" content=\"Efficiency record of 27.09% for crystalline silicon heterojunction back-contact cells certified 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No sooner had we published our article on SunPower grabbing the unofficial prize of most efficient solar panel for commercial use, than Japanese manufacturer Panasonic surprises with a late sprint to the line. The Japanese manufacturer has now jumped into the lead in the solar\u2026","rel":"","context":"In "Solar Panels"","block_context":{"text":"Solar Panels","link":"https:\/\/www.solarquotes.com.au\/blog\/category\/solar-panels-2\/"},"img":{"alt_text":"panasonic most efficient panel","src":"https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2016\/03\/panasonic-trump-sunpower.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2016\/03\/panasonic-trump-sunpower.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2016\/03\/panasonic-trump-sunpower.jpg?resize=525%2C300 1.5x"},"classes":[]},{"id":91956,"url":"https:\/\/www.solarquotes.com.au\/blog\/longi-ecolife-panels-mb3179\/","url_meta":{"origin":80919,"position":4},"title":"Longi Unveils Monster 510W Residential Solar Panel","author":"Michael Bloch","date":"May 13, 2025","format":false,"excerpt":"Chinese solar panel manufacturer Longi offered a look at its new line of heterojunction back contact modules boasting up to 510 Watts capacity at Intersolar Europe last week. The EcoLife series still manages to sneak within what would be considered suitable sizing for residential rooftop installations - but only just.\u2026","rel":"","context":"In "General Solar & Storage News"","block_context":{"text":"General Solar & Storage News","link":"https:\/\/www.solarquotes.com.au\/blog\/category\/solar-battery-news\/"},"img":{"alt_text":"Longi EcoLife solar panel","src":"https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2025\/05\/longi-ecolife-panel.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2025\/05\/longi-ecolife-panel.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2025\/05\/longi-ecolife-panel.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2025\/05\/longi-ecolife-panel.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2025\/05\/longi-ecolife-panel.jpg?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":17472,"url":"https:\/\/www.solarquotes.com.au\/blog\/longi-solar-bifacial-mb0356\/","url_meta":{"origin":80919,"position":5},"title":"Longi Solar Announces New World Record","author":"Michael Bloch","date":"December 11, 2017","format":false,"excerpt":"China's Longi Solar has announced its bifacial PERC monocrystalline cell has achieved a world record bifaciality value of 82.15%.\u00a0 Bifacial solar cells can make use of light entering the cell from both sides. The \"bifaciality\" of cell, according to PVSyst, is \"the ratio of the nominal efficiency at the rear\u2026","rel":"","context":"In "General Solar & Storage News"","block_context":{"text":"General Solar & Storage News","link":"https:\/\/www.solarquotes.com.au\/blog\/category\/solar-battery-news\/"},"img":{"alt_text":"Longi Solar","src":"https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2017\/12\/longi-solar-modules.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2017\/12\/longi-solar-modules.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2017\/12\/longi-solar-modules.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2017\/12\/longi-solar-modules.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.solarquotes.com.au\/blog\/wp-json\/wp\/v2\/posts\/80919","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.solarquotes.com.au\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.solarquotes.com.au\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.solarquotes.com.au\/blog\/wp-json\/wp\/v2\/users\/23"}],"replies":[{"embeddable":true,"href":"https:\/\/www.solarquotes.com.au\/blog\/wp-json\/wp\/v2\/comments?post=80919"}],"version-history":[{"count":6,"href":"https:\/\/www.solarquotes.com.au\/blog\/wp-json\/wp\/v2\/posts\/80919\/revisions"}],"predecessor-version":[{"id":80933,"href":"https:\/\/www.solarquotes.com.au\/blog\/wp-json\/wp\/v2\/posts\/80919\/revisions\/80933"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.solarquotes.com.au\/blog\/wp-json\/wp\/v2\/media\/80929"}],"wp:attachment":[{"href":"https:\/\/www.solarquotes.com.au\/blog\/wp-json\/wp\/v2\/media?parent=80919"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.solarquotes.com.au\/blog\/wp-json\/wp\/v2\/categories?post=80919"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.solarquotes.com.au\/blog\/wp-json\/wp\/v2\/tags?post=80919"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}