Heat pumps will soon be able to store/ distribute heat as needed from storage smaller/ more powerful than a traditional hot water tank

https://techxplore.com/news/2026-01-heat-pumps-will-soon-be.html

"when electricity cheap or heat pumps running, heats non-toxic salt hydrate phase change material until melts, absorbing massive thermal energy... when need heat for showers/ morning warmth, material solidifies/ releases stored energy... salt hydrates' higher energy density than water so up to 4X smaller water tank speeds heat transfer, thin recycled aluminum fins last decades (plasma electrolytic oxidation coated), 85% efficient (was 65), >70% reduced charging times, >80% reduced time releasing heat"