Environmentally Conscious Products

The Toshiba Corporation Power Systems Company is evaluating environmental impacts of products and developing and designing environmentally conscious products (ECPs).

Introduction of Environmentally Conscious Products

Advanced Ultra Super Critical Steam Turbine (under development)

Factor	1.55
Effect of CO2 reduction	Approx. 900 thousand tons/year
Environmental aspects	Mitigation of climate change Effective use of materials
Purpose	Reduction of the amount of CO2 emission from coal-fired power plant
Measures	Improving steam temperature condition to achieve high thermal efficiency by applying heat-resistant alloy materials.
Effect	Increasing thermal efficiency by approx. 20% or more Reducing the amount of CO2 emission per 1000MW power plant by approx. 900 thousand tons per year from previous records

A-USC

Advanced Ultra Super Critical Steam Turbine (under development)

VHP

Very high pressure turbine

Geothermal Power Generation to Make the Maximum Use of Natural Energy

Factor	18.1 *
Effect of CO2 reduction	227 thousand tons/year
Environmental aspects	Mitigation of climate change
Purpose	Improving performance of geothermal turbine and its reliability
Measures	Adopting water removal technology and 3D-Designed path, etc.
Effect	Extending the interval periods between periodic inspections and improving steam consumption By implementing the measures, reducing the amount of CO2 emission by 1.5% and achieving the CO2 reduction of 227 thousand tons per year (as an example of 50MW plant)

*

This factor as compared with general coal-fired thermal power plants of FY2000 was calculated.

Hydraulic Turbine Runner for Hydroelectric Power Plant Which Has Achieved High Efficiency

Environmental aspects	Mitigation of climate change
Purpose	Increasing power generation of hydroelectric power plant
Measures	Adopting a new runner blade due to advanced flow analysis technology and high-precision model test
Effect	Reducing the amount of CO2 emission by 3,600 tons/year against output increase of 1MW

Micro-Hydroelectric Generating Equipment

Environmental aspects	Mitigation of climate change
Purpose	Effective use of small-scale water
Measures	Cost reduction by setting hydraulic turbine as standard structure Ensuring wide-range application due to five different units
Effect	It is applicable to small-scale water points such as industrial water supply, water supply/sewerage systems, and discharge for river maintenance, etc.

Residential Fuel Cell Co-generation System, "ENE-FARM"

Factor	3.21
Effect of CO2 reduction	Approx. one ton/year
Environmental aspects	Mitigation of climate change
Purpose	Reducing the amount of CO2 emission from households
Measures	Using heat generated at power generation as hot water effectively Achieving energy-saving operation based on the learning control system which is customized according to electrical/heat load of each household
Effect	The amount of CO2 emission: reduced approximately one ton/year

Reference

• Environmental effective indicator, "Factor T"