Like the solar collectors, barometric turbines already exist using old mines or caves to store compressed air (just a few PSI but lots of volume) when grid power is discounted or wind energy available, and draw on it later to meet peak demand. It's a low-density energy storage solution, but efficient on a large scale where the mass of ground around the chamber absorbs heat from compressed air and later warms expanding air. It's the heat in the air that gives it power to expand. With portable tanks or highly-compressed air, heat of compression dissipates and you lose a lot of the energy you spent putting it in.

Ambient barometric differentials (daily air temperature driven pressure changes) are a free renewable energy source for low-power devices such as self-winding clocks. Cornelius Drebbel built one in 1610 (years before he started building submarines). Like Cox in the 1760's Drebbel powered his device by expansion and contraction of liquid, while the 1864 Beverly Clock (still working in New Zealand) lifts its weight by daily movement of a sealed air chamber diaphragm instead.