Contribution of Water Saving to a Stable Power Supply in Vietnam

DOI Web Site 2 Citations Open Access
  • Takayuki Otani
    ESG Promotion Department, TOTO Ltd., 2-1-1, Nakashima, Kokurakita-ku, Kitakyushu City 802-8601, Japan
  • Kanako Toyosada
    Fukuoka Women's University, 1-1-1, Kasumigaoka, Higashi-ku, Fukuoka City 813-8529, Japan
  • Yasutoshi Shimizu
    Water and Lifestyle Research Laboratory, 31-3, Munakata, Fukuoka 811-4141, Japan

Description

<jats:p>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.</jats:p>

Journal

  • Water

    Water 7 (6), 2900-2907, 2015-06-15

    MDPI AG

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