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Komatsu's Environmental and Social Activities Enhancing Quality of Life


Mitigating Climate Change(Initiatives to Mitigate Climate Change in Business Operations)  Halving Electricity Usage Project

Halving Electricity Usage Project

As part of its continuing effort to reduce environmental burdens by cutting CO2 emissions, Komatsu has decided to accelerate its pace of power usage reduction by boosting productivity drastically in anticipation of lingering nationwide power shortages in 2012 and after since their outbreaks in the service areas of Tokyo Electric Power Company, Inc. and Tohoku Electric Power Company, Inc. in the wake of the Great East Japan Earthquake in 2011.

Based on the in-depth analysis of electricity usage status since then, Komatsu’s own domestic manufacturing facilities have worked towards achieving its new goal of cutting the peak power usage by 50% compared to its summer 2010 level to reduce environmental burdens.

Conceptual Approaches to Reducing Electricity Usage
Conceptual Approaches to Reducing Electricity Usage

Komatsu is committed to three basic concepts of reducing electricity usage as follows:

  • (1)Visualize electricity usage to eliminate waste
  • (2)Production reform
  • (3)Use alternative energy sources

(For more details, please refer to the “Halving Electricity Usage Project” section of the Environmental Report 2014.)

(1) Activity Results (Domestic Manufacturing Facilities)

In addition to the peak power usage, we were also able to achieve Komatsu’s own target of 50% reduction in electricity usage. Going forward, we will continue with these types of activities, as well as pursue further actions that will lead to even more electricity usage reduction.

■Electricity usage change forecasts
Electricity usage change forecasts
■Saving in electricity purchases at the new assembly plant (in terms of the FY2010 output)
Saving in electricity purchases at the new assembly plant (in terms of the FY2010 output)
(2)Status of electricity usage reductions at a new assembly shop at Awazu Plant

With impetus mainly from a full launch of biomass power generation scheduled for FY2015, electricity usage reductions at a new assembly shop at Awazu Plant commissioned into service in 2014 was reduced by over 90% as planned.



Whole view of the new assembly shop

Whole view of the new assembly shop

Full underground pit structure

Full underground
pit structure

Assembly line made easier to work with

Assembly line made easier to work with