The following submission statement was provided by /u/darth_nadoma:

PowerNEST is an integrated solar-wind electricity system for the high rise buildings (buildings with at least five floors) . It has already been installed in five projects across the Netherlands, IBIS power is currently working on installing these units on 12 more.

According to IBIS Power, the ready-made system may create 6 to 10 times more electricity than standalone rooftop solar.

Please reply to OP's comment here: https://old.reddit.com/r/Futurology/comments/zg2eui/netherlands_integrated_rooftop_solar_panels_wind/izeolpj/