What is installed in one year has little relevance to what eventual installed capacity will be for solar/wind/nuclear. Once solar/wind becomes a larger amount o

What is installed in one year has little relevance to what eventual installed capacity will be for solar/wind/nuclear. Once solar/wind becomes a larger amount of installed capacity the immense problems with storage will likely become a huge limiting factor. Have you considered how much storage poland (or any country with large seasonal variation in sun/wind) would actually need for having 50% of it's capacity in solar?