Tokyogasgroup csr report

Contribution to the Environment

Efforts in the District Heating and Cooling Business


Efforts in the District Heating and Cooling Business

Tokyo Gas Group operates District Heating and Cooling plants (including small-scale spot heat supply centers) in 54 districts. Steam and heated and chilled water are produced by various natural gas systems, including gas cogeneration systems, absorption chillers, and boilers, and are supplied within specific areas. To increase energy efficiency, we are working to fine-tune operation of these facilities and make them more efficient.

Makuhari District Heating and Cooling Center
Makuhari District Heating and Cooling Center


Initiatives at the Makuhari District Heating and Cooling Center
We are upgrading heat source equipment at the Makuhari District Heating and Cooling Center in order to convert it from a conventional heat-only district heating and cooling center into a community energy center that also generates electricity in order to help conserve energy and reduce CO2 emissions throughout the area as a whole. Using the latest high-efficiency large-scale gas cogeneration system (with a total capacity of 15.7 MW), electric turbo chiller, boiler, and absorption chiller, we have achieved the "best mix" of heat and power supply systems, resulting in a 19% reduction in fuel consumption and 19% reduction in CO2 emissions (based on performance in fiscal 2015).

Schematic of Makuhari District Heating and Cooling Center


Schematic of Makuhari District Heating and Cooling Center
Only when demand cannot be met by the cogeneration system.
 

DHC service to Makuhari Shintoshin area
DHC service to Makuhari Shintoshin area

DFF Inc., Corporate Social Responsibility Sect, General Administration Dept., Corporate Planning Dept., Resources & Global Business Division, Energy Solution Div, Power Buisiness Dept., Pipeline Network Division, IT Division, Residential Sales Div., Fundamental Technology Dept., Energy Solution Div, Environmental Affairs Dept., Purchasing Dept. , Health Insurance & Employees' Welfare Sect., Personnel Dept., Internal Audit Dept., Audit & Supervisory Board Member's Office, Compliance Dept., Regional Development Div., Finance Dept, TGES, TOKYO GAS COMMUNICATIONS, INC.