Little is known about the long-term stability of photovoltaic solar panels. Solliance/TNO researcher Mirjam Theelen has developed an experimental set-up in which the degradation of solar cells can be accelerated and the degradation monitored in real time.   The experimental set-up has been well received in the photovoltaic world and is now being commercialized.   Copper indium gallium selenide (CIGS) solar cells have a large potential for large-scale application, as they can be manufactured ...