9 Electricity storage apparatus, namely, cold transfer energy storage systems comprised of electricity or fluid conduits and storage tanks comprised of metal to enable cold energy transfer; electricity storage apparatus, namely, cold transfer energy storage systems comprised of electricity or fluid conduits, turbines other than for land vehicles, compressors for compressing air for energy storage purposes, and storage tanks comprised of metal to enable cold energy transfer; electricity storage apparatus, namely, cryogenic energy storage systems comprised of electricity or fluid conduits and storage tanks comprised of metal to enable cold energy transfer; electricity storage apparatus, namely, cryogenic energy storage systems comprised of electricity or fluid conduits and storage tanks comprised of metal, turbines other than for land vehicles, and compressors for compressing air for energy storage purposes to enable cold energy transfer; apparatus and instruments, namely, electric accumulators and batteries for accumulating electricity by means of storing electric currents; downloadable training manuals in electronic format in the field of electricity, electricity generation, electricity storage and electricity supply