The heat pump (5) has one end connected to a circulation line in which the heat exchange coil (2.2) of each energy storing pond (2) is located and the other end connected to an external user (6).

Workers at Japan's stricken Fukushima nuclear plant have begun removing fuel rods from a storage pond at the Unit 4 reactor building.

These regulations are the result of a fly ash slurry spill from a 40-acre coal ash storage pond at the Tennessee Valley Authority’s Kingston plant in December 2008.