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Heat transport is one of the key technologies for the high efficiency utilization of the thermal energy discharged from the industries in a remote area. The authors have proposed a new hydrogen pipeline network system, which can realize heat recovery, transport and supply. The system consists of facilities for heat-pressure conversion by metal hydrides and a pair of pipelines whose pressure is maintained at high and low specific pressure. Heat recovered from various waste heat sources is normalized as the high pressure hydrogen gas, and afterwards the pressure energy is converted again into thermal energy at heat demand area: All "energy information" is integrated to the pressure of hydrogen. This system becomes the base of the technology infrastructure for supplying urban energy in the future; the pipeline network will be useful for supplying hydrogen as a clean town gas through developing technologies of the economical hydrogen production and the safe distribution. The concept of this network system has been applied to the national research and development project of New Sunshine Program, "Broad Area Energy Utilization Network System Technology" (Eco-Energy City), promoted by AIST, MITI.