{"id":63657,"date":"2021-09-15T08:00:55","date_gmt":"2021-09-15T06:00:55","guid":{"rendered":"https:\/\/www.vpsolar.com\/?p=63657"},"modified":"2021-09-15T07:59:54","modified_gmt":"2021-09-15T05:59:54","slug":"solaredge-new-single-string-design-rules","status":"publish","type":"post","link":"https:\/\/www.vpsolar.com\/en\/solaredge-new-single-string-design-rules\/","title":{"rendered":"SolarEdge new single string design rules"},"content":{"rendered":"

SolarEdge changed the already simple design rules based<\/strong> in practice only on the minimum and maximum number of optimizers in series and the maximum power that they could support.<\/p>\n

Inverter \u2264 5 kW: removed the power limit of the single series of 5.7 kWp<\/h2>\n

From now on, for the single-phase inverters of the HD Wave series<\/a><\/strong> with size less than \/ equal to 5 kW of whatever models standard, with integrated EV-charger<\/a><\/strong> or StorEdge with battery input, the power limit of the single series of 5.7 kWp is removed .<\/p>\n

10 kW inverter: removed the power limit of the single string which stood at 11.25 kW<\/h2>\n

The same thing also for three-phase inverters from 10 kW downwards, the power limit of the single string is removed, which stood at 11.25 kW. Also included here are StorEdge inverters with 48V battery input.<\/p>\n

Inverters connected to Delta-type grids are excluded from this rule<\/h2>\n

In this way, the design can be even easier and faster, in practice:<\/p>\n

    \n
  • single string minimum 6 optimizers P404, P485, P505, P601 or 8 optimizers P370, P401, P500 for any DC power for single-phase inverters up to 5 kW;<\/li>\n
  • minimum 14 optimizers P404, P485, P505, P601 for three-phase inverters up to 10 kW, with the exception of 3 kW where 13 are enough.<\/li>\n
  • single string with at least 16 optimizers P370, P401, P500 on all three-phase inverters from 10 kW and below including 3 kW for any DC power.<\/li>\n<\/ul>\n

    Keep in mind the usual rules for optimizer module coupling:<\/h2>\n
      \n
    • Isc current<\/strong> less than the maximum allowed by the optimizer<\/li>\n
    • Voc voltage<\/strong> calculated at the minimum design temperature lower than the maximum allowed by the optimizer<\/li>\n
    • STC power<\/strong> of the module lower than the maximum allowed by the optimizer, taking into account that the power tolerance must be a maximum of + 5%<\/li>\n<\/ul>\n

      In this way, in addition to saving time in the design phase, the costs of the BOS (balance of system) and assembly costs are also reduced.<\/p>\n","protected":false},"excerpt":{"rendered":"

      SolarEdge changed the already simple design rules based in practice only on the minimum and maximum number of optimizers in series and the maximum power that they could support. Inverter<\/p>\n","protected":false},"author":1,"featured_media":63272,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[141],"tags":[7775,3355,7777,7776,3365,7779,7778],"class_list":["post-63657","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news-en","tag-design-rules","tag-inverter-en-2","tag-isc-current","tag-optimizer-module","tag-solaredge-en-2","tag-stc-power","tag-voc-voltage"],"yoast_head":"\nSolarEdge new single string design rules<\/title>\n<meta name=\"description\" content=\"SolarEdge has changed the design rules based only on the min. and max. number of optimizers in series and the max. power that this could bear\" \/>\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\/solaredge-new-single-string-design-rules\/\" 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