Solar power itself is intermittent, yes. But it is not a risky investment – quite the opposite actually. You can buy panels and inverters with 25yr manufacture

Solar power itself is intermittent, yes. But it is not a risky investment – quite the opposite actually. You can buy panels and inverters with 25yr manufacturer warranties. Maintenance costs are low and predictable (cleaning panels, replacing equipment). Energy output is as predictable as the sun, and in certain regions it is pretty constant. It is also not "costly" in the sense that the bulk of the cost of installing solar is the labor.