The Guggenheim Museum in Bilbao, Spain, has just installed 300 solar panels on its roof – part of its commitment to be climate neutral by 2030. The 80 kW photovoltaic installation will save around 5 per cent of the museum’s electricity consumption and supply enough power to light its exhibition halls. But the modernist building by renowned architect Frank Gehry posed unique challenges for integrating the panels onto the roofs. To preserve the architectural integrity of the iconic structure, the colour and design of the panels had to be carefully selected and approved. With the need for green e…