Tokyogasgroup csr report

Contribution to the Environment

Popularization of High-Efficiency Commercial Gas Appliances and Systems

Development and promotion of high-efficiency air-conditioning systems

In the commercial air conditioning market, we are promoting the GHP XAIR gas heat pump air-conditioning system, which cuts annual energy consumption compared with previous models, and "natural chillers" which use natural refrigerant for building use. We are also encouraging adoption of Suzuchu cool kitchen systems, which reduce heat and air-conditioning load in locations such as restaurants and hotel kitchens.

Popularization of high-efficiency gas heat pumps (GHPs)
GHP air-conditioning systems both save power and conserve energy, and we have been working to promote the XAIR series of GHPs, which are the most efficient of all. In October 2015 we launched the even more energy-efficient GHP XAIR II with 20% lower annual primary energy consumption than its predecessor. This is made possible by its lower engine speed in the light load zone that accounts for much of the system's running time, allowing it to function even more efficiently.

Annual Energy Consumption Compared to the XAIR
Annual Energy Consumption Compared to the XAIR

Comparison between 15-year-old model and XAIR based on actual past performance. Comparison between XAIR and XAIR II based on Tokyo Gas estimates.

Our Green Help Pro*service achieves energy savings without sacrificing comfort by allowing GHPs to be controlled over the Internet so that they can be operated more efficiently and their operating status can be tracked at a glance. Since April 2016, we have also offered Smart Multi air-conditioning systems, which help lower energy consumption, CO2 emissions, and peak load by combining a GHP with an electric heat pump (EHP) using the same refrigerant system. These can be optimally controlled by the ENESINFO remote control service, also launched that same month.
Green Help Pro is a registered trademark of Tokyo Gas. 
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.

Development and popularization of high-performance industrial furnaces and steam systems

In the industrial sector, we are dramatically cutting CO2 emissions by enabling energy users to switch from fuels such as oil and LPG to natural gas, and to use natural gas in more sophisticated ways.We are also helping businesses reduce their energy use, CO2 emissions, and costs by delivering a variety of solutions. These include TG Miru Net, which monitors and analyzes facilities online so that customers can keep track of their energy usage at a glance, and the Steam Fit steam energy service, which helps customers optimize their generation, supply, and use of steam.


Promotion of high-efficiency burners for industrial furnaces
Regenerative burner systems work by capturing the heat from exhaust gas in a heat reservoir and using it to preheat an air feed, resulting in extremely high combustion efficiency coupled with low NOx emissions. Up to 50% more energy efficient than conventional systems, these systems are drawing attention for the crucial contribution that they can make to reducing CO2 emissions from industrial furnaces.

Regenerative burner system
Regenerative burner system

Reducing CO2 emissions by switching to natural gas and using it more efficiently
Switching from fuels such as oil and LPG to natural gas can reduce CO2 emissions by about 25%. However, emissions can be slashed even further by switching to more efficient equipment and systems and making more sophisticated use of natural gas.Reducing CO2 emissions by switching to natural gas and using it more efficiently
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.

Development and popularization of gas cogeneration systems

Gas cogeneration systems (CGSs) are distributed energy systems that generate electricity by means of a high-efficiency engine powered by clean natural gas, a turbine, and a fuel cell, while capturing the waste heat generated in the process to produce steam or hot water, which is then supplied, along with electricity, in the location of installation. Systems of this kind are very environmentally friendly, enhance energy security (by providing power source redundancy), and help conserve electricity. At the end of fiscal 2015, 1,943 MW of CGS capacity (excluding the residential sector) was in operation in Tokyo Gas's service 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.

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.