Nuclear has enormous political hurdles that translate into extreme project costs. Hydro and Geothermal are both geographically limited. Hydro especially is effectively tapped out at this point. You are chasing progressively less suitable locations for each install. Most of the best remaining places are far away from civilization and would require hundreds of kilometers of high tension wire to get to the nearest grid connection.

Meanwhile battery prices are dropping year over year and installed capacity is still skyrocketing. Eventually the curve will level off, but we are not to the point of diminishing returns yet. Solar and Wind + Battery is shaping up to be the dominant power source of the future. It's all down to economics. Solar cells and wind turbines are not only getting cheap to buy, but once installed they require little maintenance and no ongoing fuel costs. Batteries are similarly low maintenance and the purchase price continues to drop as economies of scale and advances in technology make them cheaper and better.