This document discusses TOTO's environmental strategy for water conservation and reducing CO2 emissions through water saving efforts. It summarizes that TOTO continuously improves the water-saving performance of its sanitation products like toilets. This water saving leads to reductions in water usage, energy usage from water systems, and CO2 emissions. TOTO is expanding these water saving efforts to developing countries in Asia to help address issues from rapid urbanization like increased water and energy demands. Projects utilize carbon credits and subsidies to incentivize adoption of water saving products and behaviors.

1. TOTO
Environmental strategy for water
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2. UN-Water Conference 2013
Environmental strategy for water
=CO2 reduction by water saving=
Yasutoshi Shimizu
Kanako Toyosada
(TOTO Ltd., Japan)

3. １． About
TOTO
Sanitation ware
(toilets)
Bathrooms
,
Kitchens
Tiles,
Ceramics
Hydrotect/Tiles
(Photocatalyst)
Air-Bearing Slides,
Ferrules
■ Company name TOTO LTD.
■ Established
■ Headquarters
May 15, 1917
： Subsidiary Company
： Business Office
Japan
： Affiliate Company
■The group’s overseas hubs
15 countries, 31 hubs
3

4. 1. About TOTO
■Company Endeavors
CO2
Sanitation ware
(toilets)
Bathrooms
,
Kitchens
Products,
Services
Company
Continuously improving
water-saving performance
Manufacturing
stage impact
CO2 Emisions
(Kg-CO2/unit･year)
Ex. Toilet flushing water
reduction rate = 3% /year
Impact
reduction
by products
C150E
Amount of water
per full-flush
CS series
NEW CS series
RESTICA
series
NEOREST A
Reduce the
amount of
NEOREST AH
NEOREST AH
NEOREST AH･RH water used
per half-flush
NEOREST AH･RH
※ Only Floor Drain
4

5. 2. Benefits of water-saving in Japan
Water resources
conservation
Water
savings
Determined methodology
and calculation factors.
Contribution Potential
in 2020 was evaluated
CO2 emissions
reduction
Energy
saving
Pump
Waterwork
s
Filtration
plant
Sewer
systems
5

6. 2. Benefits of water-saving in Japan
Water resources
conservation
Water
savings
Energy
saving
CO2 emissions
reduction
The policies
that promote
water saving
began to act.
Contribution Potential
in 2020 was evaluated
The use of water-saving equipment
provides co-benefits ：
・ Water saving ⇒ 15%
reduction
from peak year 2006
・ Energy saving ⇒ 1%
reduction
from 1990
・ CO2 reduction ⇒ 1%
reduction
・ Housing Eco-point subsidy for
toilet
・ Domestic credit system
・ Joint Crediting Mechanism
from 1990
Expanded toward
developing countries
6

7. 3. Expanding of water-saving project toward other Asian nations
（ Lo
w
rate （ ） Sani
tation
high
use
）
In developing countries, progress of urbanization
(modernization) increases per capita water & energy
demands greatly.
Water systems
have been
constructed
Water systems
are under
construction
Population
Sanitation
in 2007
use rate
（ million ）
100%
<100%
to ≥30%
<30%
685.3
4061.2
1471.0
Typical
countries
Japan, U.S.,
Canada
Indonesia,
Vietnam, Mexico
India, Cambodia,
Nepal
Domestic
water usage
（ L/day ･
capita ）
442
132
114
Water-saving project mitigates water and energy issues
such as suspension of water supply and blackouts.
7

8. 3. Contribution to developing countries
Electricity consumption
（ MW ）
■ The contribution of water saving to a stable electric power supply
in Vietnam
The influence
of hot showers
on peak power
consumption
Electricity consumption
Time
The spread of hot showers pushes up peak power consumption.
The spread of water-saving showers can mitigate blackout risks.
8

9. 3. Contribution to developing countries
Vietnam
Japan
China
Energy consumption rate
of water (kwh/m3)
0.66
0.85
1.32
CO2 emission factor
of electricity (kg-CO2/kwh)
0.58
0.41
0.84
CO2 emission factor
of water (kg-CO2/m3)
0.39
0.44
1.11
CO2 reduction potential by
water saving
4.8
1.0
1.8
(% ratio to whole emission)
CO2 reduction by water saving is effective also in
other Asian countries.

10. 3. Contribution to developing countries
The main obstacle is that momentum for water saving
has not been fermented in Vietnamese society.
■The background to this is low water charges.
･ Products with water-saving features are expensive.
⇒The price difference cannot be covered
by the reduction in water charges.
Institutional design has been planed in the project area: Vietnam
⇒ Water-saving campaign with the Vietnamese
government
using carbon credit (≒ subsidy) and certification.

11. 3. Contribution to developing countries
Carbon credit produces Joint Crediting Mechanism Scheme
Rapid urbanization induces
mass consumption of
water and energy
Japanese
government
+
Company
Japan
Subsidy
Watersaving
products
Hotel
Vietnam
2
CO2
reduction
s no ssi m OC
i
e
CO2
offset
Carbon
credit
BaU
Present
Carbon
credit
Watersaving
project
Water-saving project
mitigates water and
energy issues
2011-13‥Feasibility study in China, Vietnam and other ASEAN nations
2014‥‥Plan to start a water-saving credit project in Vietnam
11

12. 3. Contribution to developing countries
■ Framework of Minimal Infrastructure for water saving
JCM utilizes low-carbon city development
plan (water scenario) construction support
JCM-applied product selection standard
Fermentation of a water-saving momentum
Local
Partner
Credits
Subsidy
Japanese
Ⅱ
government
Ⅰ
Government
organization
Business+
campaign
Counterpart
country government
Consumer market
Prominent
buildings
Certification
Water saving
campaign
Business partners
expansion
Full-scale business deployment
Credits
Ⅲ
Subsidy
Minimal infrastructure design standard
PPP
business
Waterworks
system
Sewer
system
Public utilities market