You can switch your gas and electricity energy supplier and this shouldn't affect the payments that you get from your existing feed-in tariff provider - it is obliged to continue making payments to you. You can do your switch as normal via Cheap Energy Club, or via any other switching site.
If you'd like to change your feed-in tariff provider, you'll need to arrange this with your chosen supplier - you can't do this through Cheap Energy Club.
The 'big six' energy companies (British Gas, EDF, E.on, Npower, Scottish Power and SSE) must pay a feed-in tariff to you if you generate renewable energy at home through your solar panels. Some smaller companies don't offer feed-in tariffs but to find out which ones do, please see Ofgem's website.
See our Solar Panels guide for more info.