What are the key warning signs that a system may not be performing as it should?

In many cases simple electrical faults or wiring failures can cause a serious inefficiency in the ability of the panel to produce power. This is particularly important for installers working on ‘roof rental’ schemes were installation has been provided free of charge in return for receipt of the feed-in tariff payments.

Although metering will always give an indication of system performance, effective electrical testing is also vital not only to prove the safe installation of a new system but also to verify ongoing functional performance.