{"id":51442,"date":"2021-10-06T08:00:09","date_gmt":"2021-10-06T06:00:09","guid":{"rendered":"https:\/\/www.vpsolar.com\/?p=51442"},"modified":"2021-10-06T09:01:56","modified_gmt":"2021-10-06T07:01:56","slug":"new-technologies-for-pv-modules-half-cut-cells","status":"publish","type":"post","link":"https:\/\/www.vpsolar.com\/en\/new-technologies-for-pv-modules-half-cut-cells\/","title":{"rendered":"New technologies for PV modules: Half cut cells"},"content":{"rendered":"

Since 2017, a new technology that is growing in importance on the market is the so-called \u201chalf cut cells\u201d, and it is often combine with the PERC technology<\/strong>.<\/p>\n

In this way, it is possible to switch from the current standard modules with 60 or 72 6-inch cells, to 120 or 144 half-cells.<\/strong><\/p>\n

The transition to this new technology allows the increase of the power of the single module and of the producibility, thanks to the following factors.<\/p>\n

A) Greater tolerance to shading<\/h2>\n

In traditional modules, cells are connected in series in a 6 x 10 matrix and the effect of a possible shadow is mitigated by the 3 bypass diodes<\/strong>.<\/p>\n

In the event that a cell is not radiated like the others, one of the 3 diodes is activated and the module production is only guaranteed for 2\/3 (a 300W module could roduce 200W).<\/p>\n

On the left, the half-cut module on the right, the traditional module<\/h4>\n

[vc_row][vc_column][vc_single_image image=”50560″ img_size=”full” alignment=”center” onclick=”link_image”][\/vc_column][\/vc_row]<\/p>\n

Considering instead a module with 120 half-cut cells, there will be 2 series of 60 cells in parallel having in common the 3 by-pass diodes.<\/p>\n

In this way, if a cell is shaded only 1\/6 of the module will be affected by the shadow (a 300W module could therefore produce 250W).<\/p>\n

B) Decrease in resistive losses<\/h2>\n

In half cut cells, since the surface is half compared to the whole cells, the current produced will also be halved and consequently the losses will be reduced by 1\u20444<\/strong> (being the proportional losses to the square of the current).<\/p>\n

Moreover, with a lower current circulating in the bus bars, the temperature of the module will be lower, thus contributing to increase its producibility.<\/p>\n

C) Lower crack possibilities<\/h2>\n

In a cell with a smaller surface, microcracks formed over time will have less effect and the photovoltaic module will maintain its performance for longer<\/strong>.<\/p>\n

If this technological innovation is supplemented by having cells with a high number of 5\/6 or 12 bus bars (called multiwire) the benefits described in points B and C are amplified.<\/p>\n

Market share estimated at 35% in 2020<\/h2>\n

With half cut cell modules, the power increases from 5 to 15W per module (depending on the type of cell)<\/strong>. The market share of this technology is estimated to reach 35% in 2020<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

Since 2017, a new technology that is growing in importance on the market is the so-called \u201chalf cut cells\u201d, and it is often combine with the PERC technology. In this<\/p>\n","protected":false},"author":1,"featured_media":50565,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[141],"tags":[5197,5336,5543,4937,3375,3534,4546],"class_list":["post-51442","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news-en","tag-energy-systems-4-1","tag-half-cut-cells-en","tag-microcracks","tag-perc-technology","tag-photovoltaic-en","tag-pv-modules-en","tag-solar-pv"],"yoast_head":"\nNew technologies for PV modules: Half cut cells<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.vpsolar.com\/en\/new-technologies-for-pv-modules-half-cut-cells\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"New technologies for PV modules: Half cut cells\" \/>\n<meta property=\"og:description\" content=\"Since 2017, a new technology that is growing in importance on the market is the so-called \u201chalf cut cells\u201d, and it is often combine with the PERC technology. 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