Taking goods for personal use from the UK to Ukraine

I bought an equipment for solar energy production and storage in the UK for my family in Ukraine. The plan is to use my private car to deliver it to Ukraine. 1. Do I need to create an export declaration to move it out the UK? 2. Do I need to have T1 form to transit goods for personal use through EU territory?

Hi,
If your goods are for personal use, you do not normally need to make a formal declaration (requiring you to complete an electronic customs declaration) when you
bring them into or out of the UK.
These goods include private vehicles that have been in the UK before, and personal effects and gifts carried in your luggage or driven in a vehicle.
More information on below link:
Check how to declare personal goods you bring into or take out of the UK
You may have to check with customs in EU countries for their requirements.
Thank you.