I follow Saule Technologies. They solve stability for few years. Great for Internet of Things such as price tag in shop. Competitor to batteries. However this

I follow Saule Technologies. They solve stability for few years. Great for Internet of Things such as price tag in shop. Competitor to batteries. However this is not good enough when 25+ Years lifetime is required (residential or utility scale). Another niche use case is quantum glass by ML System. Generate energy from windows. Great for IoT, smart windows, new buildings, cars, but energy density is fraction of typical PV panels. https://mlsystem.pl/q-glass-dla-branzy-automotive/?lang=en https://mlsystem.pl/q-glass-dla-branzy-automotive/?lang=en