{"product_id":"solar-technology-290w-mhd-flexible-solar-panel","title":"Solar Technology 290W MHD Flexible Solar Panel | 2mm","description":"\u003cp\u003e\u003cstrong\u003e290 watts from a panel just 2mm thick, for van roofs where a rigid frame won't fit or would add too much height.\u003c\/strong\u003e The mono high density (MHD) cells sit in a lightweight laminate that follows flat surfaces and gentle curves.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e290W\u003c\/strong\u003e rated output, 24.4V at 11.89A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2mm thick\u003c\/strong\u003e and 1710 × 890mm, weighing 4.6–5.2kg depending on version\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSalt-spray and UV tested\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUp to about 1,740Wh a day\u003c\/strong\u003e on Solar Technology's estimate for good conditions\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhich version?\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eSTPVFU290\u003c\/strong\u003e uses shingled monocrystalline cells under an ETFE top sheet and comes with an inline fuse, two 0.9m leads and two 3m cables with MC4 connectors, so several panels can be joined into an array. The \u003cstrong\u003eSTPVFU290R\u003c\/strong\u003e has its cable exiting from the rear, a built-in diode against battery discharge, and weighs 4.6kg.\u003c\/p\u003e\u003ch3\u003eCharging a 12V system\u003c\/h3\u003e\u003cp\u003eThis is a 24V-class panel (24.4V at maximum power). Solar Technology specify a 20A charge controller, which isn't included. On a 12V battery bank, choose an MPPT controller: it converts the panel's higher voltage into extra charging current, where a basic PWM controller would waste much of it. Real-world output depends on season, weather and roof angle; model your summer and winter days in the \u003ca href=\"https:\/\/roamwired.com\/calculator\"\u003eRoam Wired calculator\u003c\/a\u003e. The panel also pairs with a \u003ca href=\"\/collections\/power-stations\"\u003epower station\u003c\/a\u003e that has a suitable solar input.\u003c\/p\u003e","brand":"Solar Technology","offers":[{"title":"With inline fuse (STPVFU290)","offer_id":51416054464679,"sku":"STPVFU290","price":739.0,"currency_code":"GBP","in_stock":true},{"title":"Rear cable exit (STPVFU290R)","offer_id":51416054497447,"sku":"STPVFU290R","price":739.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0770\/1158\/3143\/files\/STPVFU290_fullsize.webp?v=1790308345","url":"https:\/\/shop.roamwired.com\/products\/solar-technology-290w-mhd-flexible-solar-panel","provider":"Roam Wired Shop","version":"1.0","type":"link"}