What humidity levels do the conventional passive systems work at? In regions where there’s excess solar energy and insufficient humidity, the tradeoff seems ma

What humidity levels do the conventional passive systems work at? In regions where there’s excess solar energy and insufficient humidity, the tradeoff seems maybe worth it? Excess solar energy brings to mind stuff like putting it through solar panels, which can be limiting. But if we just need to convert photons to phonons, no need to stop by in electron-vill, a big dumb array of mirrors could do it, right?