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Water 2015, 7(6), 2900-2907;

Contribution of Water Saving to a Stable Power Supply in Vietnam

ESG Promotion Department, TOTO Ltd., 2-1-1, Nakashima, Kokurakita-ku, Kitakyushu City 802-8601, Japan
Fukuoka Women's University, 1-1-1, Kasumigaoka, Higashi-ku, Fukuoka City 813-8529, Japan
Water and Lifestyle Research Laboratory, 31-3, Munakata, Fukuoka 811-4141, Japan
Author to whom correspondence should be addressed.
Academic Editor: Miklas Scholz
Received: 15 May 2015 / Accepted: 5 June 2015 / Published: 15 June 2015
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In Vietnam, the rapid expansion of cities is exceeding the supply capacity for water and electricity, and restrictions on water supply and blackouts occur on a daily basis. In this study, the authors examined whether water-saving equipment could solve these problems. This paper focused on toilet bowls that consumed a large amount of water, and on showers for which heat consumption was high. In Vietnam, the main heat source for showers is the electric water heater, typically having a power consumption of 2500–4500 W. Although the current diffusion rate of such water heaters is just 13%, their use will spread widely in the future. These heaters have already placed a peak load on electricity consumption in winter when a large amount of energy is consumed for heating water, and they will become a significant factor in blackout risks as their use becomes commonplace nationwide. It is clear that the introduction of water-saving showers will allow not only a more efficient use of water resources, but will also mitigate against the risk of blackouts. View Full-Text
Keywords: global warming; CO2 reduction; water; saving water; Vietnam global warming; CO2 reduction; water; saving water; Vietnam

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Otani, T.; Toyosada, K.; Shimizu, Y. Contribution of Water Saving to a Stable Power Supply in Vietnam. Water 2015, 7, 2900-2907.

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