http://www.renewablesavings.co.uk/ProductInfo.aspx?id=150

Solar PV System Info - 3.9KW Sharp NU 245w

Price Inc VAT@ 5% : £ 12500
System kWh Rating : 3.9 KW
Panels : 16 X Sharp NU 245w
Inverter : SMA Sunny Boy 2500HF

Guarantees
Installation Guarantee : 5 Years
Panel Performance Guarantee : 25 Years
Panel / Inverter Guarantee or Extended Warranty : Inverter Guarantee: 5 Year (can be extended)

Other Information : Includes Wireless SMA Sunny Beam Monitoring System