Im importing Solar Panels from China to the UK, I have all the details apart from knowing how much import tax i will have to pay. As its a renewable energy source are there any exemptions.

You will pay 17.5% VAT. There is a reduced VAT rate for the installation of renewable energy sources, but not for the purchase of items separately.
There may also be Customs duty. If you know the commodity code of your product, you can check the rate of duty by ringing Customs on 0845 010 9000 or have a look on the website below. You can also search on the website by description but you have to start with a vague search term and work your way through the sub-headings.
Any VAT and duty due will be charged on the cost+insurance+freight value of the panels. It will usually be paid by your shipper and they will invoice you for the amount due (plus a processing fee usually!)

From experience , If your company imports the solar panels from China to UK , If your company has Form-A which is provided by Chinese Solar Panel Factory , The Tax will be cutted a lots .

My name is Fred Sue from Hangzhou Zhejiang University Sunny Energy Science and Technology Co., Ltd , specializing in Poly and Mono Solar Panels from 8W to 280W , If having any solar panel problems , Please email me : fredsue@163.com , Sunny Energy's Website : www.solar-sunny.com My Skype : solar.panel.and.solar.module

Thank you ,

Kind Regards,

Fred Sue,