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Efforts to Help Prevent Global Warming
To help protect the global environment, Mazda is working to minimize CO2 emissions and reduce energy
consumption in every phase of our activities, from production to distribution.
Saving energy in production
Mazda is reducing energy consumption, working to achieve selfimposed
CO2 emission reduction targets for production (nonconsolidated)
of 5% from FY1990 levels by the end of FY 2005, and
10% by the end of FY 2010. In FY 2004 we adopted new production
technologies (see pages 43-44), integrated production lines, reviewed
losses through TPM activities, and reduced line operating times
through improvement activities, to name a few. We are also
converting to natural gas fuel, which is expected to significantly
reduce CO2 emissions.
Conversion to LNG fuel
Natural gas has the lowest CO2 emissions per thermal unit of any of
the fossil fuels, and Mazda is aggressively switching from existing
heavy oil and LPG fuels to liquid natural gas (LNG). The Head Office
plant completed the changeover in December 2000, followed by the
Hofu Plant in 2004. Mazda will continue to expand its use of LNG to
further reduce CO2 emissions.
Utilization of energy, by category
2001 2002
Electricity
Coke
C heavy oil
B heavy oil
A heavy oil
Gasoline
Kerosene
Diesel
LPG
LNG
Total
4,342
397
1,247
0
50
9
14
12
174
441
6,687
4,970
341
1,252
0
6
10
22
21
88
728
7,438
Volumw of energy use
(x 10 3 GJ/year)
8,000
6,000
4,000
0
6,687
7,438
7,670
5,176
386
1,181
0
6
8
16
29
47
821
7,670
7,818
2001 2002 2003 2004
Quantity of energy used (x 10 3 GJ/year)
2003 2004 (Fiscal year)
(fiscal year)
5,344
386
1,126
0
6
10
16
10
46
874
7,818
LNG
LPG
Diesel
Kerosene
Gasoline
A heavy oil
B heavy oil
C heavy oil
Coke
Electricity
CO2 emissions from vehicle manufacturing
CO2 emissions (thousand tons/year)
(fiscal year)
Trends in CO2 emissions per turnover unit
CO2 emissions per unit sale (t/100 million yen)
(fiscal year)
Hofu Plant Nakanoseki Area receives the Director-
General of the Agency of Natural Resources and Energy
Award for excellence in factory energy management.
In February 2005 The Energy
Conservation Center of Japan
presented the Nakanoseki Area of the
Hofu Plant with the Director-General
of the Agency of Natural Resources
and Energy Award for excellence in
factory energy management, in the thermal energy category. The award
recognized a 1 percent year-on-year reduction in the basic energy
consumption unit for the last three years. Employees in the Nakanoseki Area
participate in TPM activities to improve the workplace, and actively participate
in lectures, training sessions and certification programs related to energy
management.
Glossary: 1
Basic energy consumption unit
A basic unit used for calculating energy
efficiency. At Mazda it is equivalent to the
amount of energy required to produce one
vehicle.
Social & Environmental Report 2005
Glossary 2
GJ (gigaJoule)
A joule is an international unit of heat. One
giga joule is equivalent to 4,186,050 kcal.