The company’s first green roof pilot was installed at an Oslo school. According to Mongstad, the pilot PV system integrated well with the rooftop vegetation and the energy yields were 20-30% ...
However, although it does not fully offset the costs of an energy efficiency renovation, installing a PV system improves the financial return by between 40% and 50%. “Installing rooftop PV ...
It is pushed to record lows when household rooftop PV installations generate a lot more than is used by the home owner. AEMO is concerned that it may go too low, pushing system security at risk ...