Solar Panels

I have recently installed 10 solar panels on the roof of my house.

Just wondering how I sell the electricity to the grid, do bulb buy it from me?
If so how is it done?

https://bulb.co.uk/export/

Since phproxy has thoroughly answered the OPs question, I feel safe in moving the discussion onwards.

How in the name of all that is sensible is this not a question that someone asks before spending thousands on a purchase of anything?