darth_nadoma OP t1_izeolpj wrote
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.
ph_ch t1_izfu2yp wrote
Their brochure at https://ibispower.eu/wp-content/uploads/2021/04/Ibis-Power-Brochure-2021.pdf mentions two business cases with 132MWh/year for solar and 40 MWh/year for wind. So I'm really curious how they calculated that factor 6 to 10.
Furthermore the question is at what price they can market their solution. Normal wind turbines become more cost effective with larger turbine sizes hence the increase wing span over the last years. This design seems to work with relatively small turbines, which would not help the business case.
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