The Clean Energy Regulator's inspection scheme has not found any rooftop solar panel systems in the ACT to be unsafe for nearly five years, but it has inspected just 1 per cent of the systems installed in the territory.

Data from the regulator shows that 223 rooftop solar panel systems were inspected in the ACT between the start of the inspection scheme in 2011 and July 31 this year.

Nine of the 223 solar panel systems inspected by the Clean Energy Regulator in the ACT have been assessed as unsafe. Credit:Fairfax Media

Nine systems were classified as unsafe, with each of those inspected before January 31, 2014.

Despite this, the ACT's percentage of unsafe systems remains above the national average, with 4 per cent of the Canberra systems inspected assessed as unsafe, compared to the national average of 3.4 per cent.