Solar passed 600 GW in a single year and is now the largest installed technology on earth

Installed capacity is the number that changes first and explains least. A gigawatt of solar and a gigawatt of gas do not produce the same electricity, because the solar plant works when the sun is up and the gas plant works when it is told to; the crossover being reported here is a nameplate crossover, and the generation crossover happens later and by a smaller margin. That is not a reason to dismiss it. Capacity leads because it is where the money and the manufacturing go, and 30 countries clearing a gigawatt in a year is a supply-chain fact that will still be true in five years regardless of any single government’s policy. The concentration is the caveat worth carrying: with China responsible for more than 60% of additions, the global figure is substantially one country’s industrial policy, and the module prices that make a Gulf solar tender viable are set by that same industry. For a region building at utility scale, the second-order consequence of a fleet this large is that the binding constraint moves from panels to everything around them — grid connections, storage duration and the hours after sunset, which is exactly why tenders here now arrive with battery capacity attached rather than as solar alone.