Thermal storage systems; thermal storage instruments and apparatus using phase change materials for cooling; apparatus and installations for regulating and cooling water temperature; thermal energy storage systems in the nature of heat batteries for energy storage; thermal energy storage blocks; thermal energy storage equipment, namely, thermal energy storage systems in the nature of heat batteries for temporary storage of energy; apparatus and equipment for the storage of sensible and/or latent heat, namely thermal energy storage systems; modular thermal blocks for the storage of energy; thermal energy storage bricks; thermal collector unit and heat exchange unit; apparatus and installations for lighting, heating, cooling; thermal solar power systems; installations for heating and cooling; parts and accessories for all of the foregoing included in this class