Solar panel income from overseas property

Dear HMRC officer, I have solar panels are fitted to my house at Hong Kong, my house is not rented out, my family members are living in the house now, and I am not charging anyone on a fee for that. Is the income from solar panel paid by Hong Kong electricity company consider as taxable income? If yes, what category should I put it on? Thank you!

Hi
No as this is personal use as it is fitted to a private residence.