01
Start with the property
Assess usable roof, orientation, inclination, shading, condition, structure, meter and consumer-unit location, cable routes and equipment positions.
02
Check the Welsh rules
Many house-mounted installations can fall within permitted development, but listed buildings, conservation areas, flat roofs and prominent positions can require closer review.
03
Build an evidence trail
Keep the survey, design, performance estimate, permissions, network correspondence, contracts, certificates, warranties and commissioning documents together.