Isentropic is a UK company that has developed an energy storage system called Pumped Heat Electricity Storage (PHES).
Isentropic owns several international and U.S. patents and applications. U.S. Application Publication No. 2010/0257862 (’862 Application) describes and claims the PHES technology.
Often when going to the beach the common complaint is that the ocean is too cold. They appear to be warming up a bit. The upper layer of Earth’s ocean has warmed since 1993, indicating a strong climate change signal, according to a new international study co-authored by oceanographer Josh Willis of NASA’s Jet Propulsion Laboratory, Pasadena, Calif. The energy stored is enough to power nearly 500 100-watt light bulbs for each of the roughly 6.7 billion people on the planet.