Tokyogasgroup csr report

Decarbonization through Energy Supply

District Heating and Cooling Services

District Heating and Cooling Services

The Tokyo Gas Group operates district heating and cooling services, including small-scale heat supply, in 44 districts. We supply steam and hot /cold water with combined heat and power (CHP) systems*1 consisted of absorption chillers and boilers, powered by natural gas. We seek to enhance energy efficiency by fine-tuning operations and working to achieve even higher efficiency with our equipment.
*1 Gas engine-based CHP systems generate electricity and recover exhaust heat generated as a by-product.
 
Makuhari District Heating and Cooling Center
Makuhari District Heating and Cooling Center

Makuhari District Heating and Cooling Center

We upgraded the Makuhari District Heating and Cooling Center to a regional energy center for power generation and heat supply that promotes region-wide reductions of energy use and COemissions, from a conventional district heating and cooling center that supplied only heat by renewed heat source equipment. We have optimally mixed the use of the latest highly efficient large-scale CHP system with a total capacity of 15.7 MW, an electric turbo chiller, a boiler and an absorption chiller while also reducing fuel consumption by 19% and CO2 emissions by 19% (fiscal 2015).

■ Operational Chart of the Makuhari District Heating and Cooling Center after Renewal

Operational Chart of the Makuhari District Heating and Cooling Center after Renewal
*1 Only when the CHP system cannot meet demand.
 
The Makuhari New City area is provided with district air-conditioning and heating services
The Makuhari New City area is provided with district air-conditioning and heating services
Sustainability Dept., 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.