Negotiating photovoltaic (PV) module warranties can seem like a complicated task with blurred lines separating fact and fiction. Making the wrong choices could see a project saddled with hidden clauses, often unnecessary coverage, and false promises.
The aim of the Solar Bankability project is to establish a common practice for professional risk assessment, which will serve to reduce the risks associated with investments in PV projects. In this article the project team discusses a key aspect of this work: the development of a methodology for the assessment of the economic impact of failures occurring during operation but which might have originated in previous phases.
Potential-induced degradation can cause significant power loss in modules if the appropriate precautions are not taken. In the first part of a new series in PV Tech Power on module failure, Peter Hacke and Steve Johnston assess the current state-of-the-art in detecting, avoiding and mitigating the worst effects of PID.