TEPCO : Challenges of TEPCO | Environmental Indicators (Performance and Targets)

Challenges of TEPCO

TEPCO's environmental goal

TEPCO has established environmental indicators to assess major environmental impacts and environmental conservation measures. Numerical targets have been set as much as possible, and a system of regular checks and reviews have been adopted toward their achievement. Owing to past efforts, steady improvement has been achieved in regard to many indicators, including power generation efficiency, air quality, and waste recycling.

Global warming indicators

CO₂ (carbon dioxide)		Unit	Performance *			Target
CO₂ (carbon dioxide)		Unit	FY1990	FY2008	FY2009	FY2010	Future
CO₂ emission intensity		kg-CO₂ /kWh	0.380	0.332 (0.418)	0.324 （0.384）	20% reduction on average over the five-year period between FY2008 and FY2012, compared to FY1990 (0.304）
Related indicators	Nuclear facility utilization rate	%	71.3	43.8	53.3	-	-
	Thermal power generation efficiency (lower heating value	%	42.2	46.1	46.9	Maintain the front-runner position
	Amount of power from natural energies purchased	GWh	-	530	620	Expand as much as possible

* Performance figures for FY2008 and beyond are CO₂ emission intensity after reflecting carbon credits. Figures in parentheses are CO₂ emission intensity without carbon credits.
( From FY2008, the Law Concerning the Promotion of Measures to Cope with Global Warming allows to reflect carbon credits of Kyoto Mechanisms.)

CO₂ emission intensity was 0.384 kg-CO₂/kWh in FY2009, and 8% lower compared to the previous year as a result of the recommissioning of Units 6 and 7 at the Kashiwazaki-Kariwa Nuclear Power Station, increased thermal power generation efficiency, and a drop in fossil fuel consumption accompanying a decline in power sales. And CO₂ emission intensity after reflecting carbon credits was 0.324 kg-CO₂ /kWh.

Local environment indicators

Air pollutants	Unit	Performance			Target
Air pollutants	Unit	FY1990	FY2008	FY2009	FY2010	Future
SOx emission intensity (average of all power sources)	g/kWh	0.17	0.10	0.06	Maintain the world's cleanest levels	by FY2019
NOx emission intensity (average of all power sources)	g/kWh	0.22	0.13	0.09	Maintain the world's cleanest levels	by FY2019

SOx and NOx emission intensity levels declined in FY2009 compared to the previous year, as a result of the reduced composition ratio of thermal power generation owing to the recommissioning of Units 6 and 7 at the Kashiwazaki-Kariwa Nuclear Power Station.

Radioactive substances	Unit	Performance			Target
Radioactive substances	Unit	FY1990	FY2008	FY2009	FY2010	Future
Evaluated value of public radiation dose in the vicinity of nuclear power stations	mSv/year	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001 by FY2019

Public radiation exposure is lower than both the regulatory value (1 mSv/year) and the target dose value set forth in the guidelines of the Nuclear Safety Commission (0.05 mSv/year).

PCBs (polychlorinated biphenyls)	Unit	Performance			Target
PCBs (polychlorinated biphenyls)	Unit	FY1990	FY2008	FY2009	FY2010	Future
Pole transformers (treatment of insulating oil inadvertently containing PCB)	kl/year	-	3,338	3,411	3,000, from FY2010
Pole transformers (washing treatment of main housing unit)	unit /year	-	105,396	107,987	About 100,000, from FY2010

We have achieved our FY2009 target values (insulating oil: 3,000 kR, main housing: 100,000 units) owing to accelerated treatment speed and decreased facility shutdown frequency.

Resource recycling indicator

Industrial waste	Unit	Performance			Target
Industrial waste	Unit	FY1990	FY2008	FY2009	FY2010	Future
Industrial waste recycling rate	%	86	99.8	99.9	Maintain current level

Industrial waste recycling rate again stood at roughly 100% in FY2009, owing to ongoing recycling efforts.
(Note) Figures are rounded to the nearest tenth.