Installing solar panels domestically should not usually require an application for planning permission so long as the conditions and limits are met.
You should also consider your location and the positioning of panels to maximise the amount of energy generated.
If you live in a listed building or designated area (conservation area, national park, area of outstanding natural beauty, etc…) you should check with your Local Planning Authority before carrying out any work.
Learn more on the Planning Portal.
Getting your job done safely.