Yes, solar is cheaper than the retail with massive subsidies, not having to pay for storage (they don't supply power in the evening nor at night), and not paying for grid (hence cheaper than retail).

From your third link: "New York State’s Public Service Commission is overhauling its rate system to keep transmission owners profitable as more consumers produce their own power". So the rest of us are subsidizing solar owners through income taxes (federal) and the rates we pay for electricity.