Cooling represents 20% of global electricity demand in buildings, a share that’s expected to rise as the planet warms and more of the world turns to cooling technology. During peak demand hours, air conditioners can account for over half the total demand on the grid in some parts of the world today.
New cooling technologies that incorporate energy storage could help by charging themselves when renewable electricity is available and demand is low, and still providing cooling services when the grid is stressed.
If you have a PV upon your house, the most effective power storage option will be a general power storage, not storing power within the aircon. Doing so, it‘s just accessible by one single device. Instead of all electric devices in the house.
I assume this aircon is targeting apartments in a residential block. But even here, I assume it makes more sense to run a small battery storage such as a camping storage for your apartment and offer power for all your devices, not just a single one.
Well that depends on how equipped you are. One cool thing about compressors is you can straight up connect a PV directly to a compressor with no voltage regulators or anything. So if you have a simple setup like that, I can see up front cost effectiveness in storing ice. But if you already have batteries, and thus voltage regulators and all the costly intermediate components to make that possible, then I would agree… I might rather store it in lead acid batteries as that would be more versatile.