11 Thermal storage apparatus, namely, heat accumulators having heat storage masses made from ceramic, salts, rock flour or metal alloys; thermal storage instruments for energy supply and provision of sustainable energy for buildings, namely, heat accumulators having heat storage masses made from ceramic, salts, rock flour or metal alloys, solar thermal modules, solar heat collection panels for use in heating, and thermal energy storage media; thermal storage instruments in the nature of heat accumulators having heat storage masses made from ceramic, salts, rock flour or metal alloys, solar thermal modules, solar heat collection panels for use in heating, and thermal energy storage media for industrial use; thermal storage apparatus and instruments in the nature of heat accumulators having heat storage masses made from ceramic, salts, rock flour or metal alloys, solar thermal modules, solar heat collection panels for use in heating, and thermal energy storage media for energy grids