Norway’s national football stadium carries a lesser-known star attraction: 1,242 solar panels stretching across the roof.

“Our data shows that the yearly energy yield of vertical solar panels can be the same or up to 30% higher than for conventional flat roof solar installations,” company founder and CEO Trygve ...

Norwegian vertical ... 1200 m2 on a flat-roofed commercial building in Oslo. It also supplied a 45 kW system for a school rooftop project earlier in the year. Both flat roofs are planted with ...