cost of 400w on grid solar system

{"cid":"91224780","title":"Risen Mono Perc Module Solar Panel 400w 405w Monocrystalline Solar Panel Cost of Solar Panels on a House","imgUrl":"https:\/\/img.chinax.com\/nimg\/20\/a2\/e77dd732b2892a20fdd239964891-200x200-1.jpg","attrs":{"Price":"$0.11-0.13 \/ watt","Brand Name":"Risen","Model Number":"RSM40-8-385MB-405MB","Minimum Order Quantity":"100 watts","Place of Origin":"Fujian, China","Cell size":"please consult customer service","Type":"PERC, Half Cell, Mono","Panel Dimensions":"1754*1096*30mm","Panel Efficiency":"20.0%~21.1%","Product Name":"solar panel RSM40-8-385MB-405MB","Solar Cells":"Monocrystalline","Cell configuration":"120 cells(5*12+5*12)","weight":"21kg","J-Box":"potted,IP68,1500VDC,3 Schottky bypass diodes","Frame":"Anodized Aluminium Alloy type 6005-2T6,Black","Cables":"4.0m\u33a1(12AWG),Positive(+)350mm,Negative(-)350mm(Connector Included)","Connector":"Risen Twinsel PV-SY02,IP68","Application":"Solar Power system","Warranty":"25 year linear power warranty"}}

{"cid":"91222658","title":"Off Grid No Electricity Cost Solar Street Light for Farm Park Pathway Lighting","imgUrl":"https:\/\/img.chinax.com\/nimg\/e6\/67\/3cce1d3c4058d7a1df04b26257fa-200x200-1.jpg","attrs":{"Price":"USD1-100\/pcs","Brand Name":"KUOMAN","Model Number":"200 300 W road light","Minimum Order Quantity":"1","Delivery Time":"general two weeks, more quantity based on exact quantity","Packaging Details":"standard international carton packing","Controller Technology":"Pro-Double MPPT","Place of Origin":"China","Optical Components":"Glass Cover with High-Brightness Lens","Lamp Power":"100-200W","Solar Panel":"Monocrystalline Silicon","Beam Angle":"70\u00b0*140\u00b0","Motion Detection":"8-10m range","Ingress Protection":"IP65","Supply Ability":"10000pcs\/month","CCT":"2700-6000K","Luminous Efficacy":"180 LM\/W","Installation Methods":"Pole Mount and Wall Mount","Control Method":"Remote Control","Certification":"CE UL","Solar Panel Adjustability":"180\u00b0 adjustable"}}