Water plant gets efficiency boost

Sum Manet / Khmer Times No Comments Share:

Japan-based company Metawater will provide its power-saving inverter technology to a water treatment plant in Cambodia’s capital through an arrangement that will help the Japanese government earn carbon reduction credits, according to a Nikkei Asian Review report.
The inverter equipment, which controls water-pumping rates to match demand fluctuations, will be installed at the Phum Prek treatment plant of Phnom Penh Water Supply Authority.
The plant’s daily processing capacity is 150,000 tonnes. “In Cambodia, electricity accounts for about 30 percent of costs to operate water purification facilities − a higher ratio than in Japan,” the report said.
Although water demand in Cambodia varies widely between the monsoon and dry seasons, the facility has not adjusted pumping rates to match the changes, so inefficiency has been an issue.
However, Phnom Penh Water Supply Authority general director Sim Sitha said he had not yet  received any information about the provision.  Inverters, which control the revolution of pump motors, are said to save power consumption by 20-30 percent in general.
Metawater hopes that its power-saving system will translate to a 400 tonne reduction in annual carbon emissions from power plants burning fossil fuels.
 Metawater will build the system in Japan and complete installation by July next year.
“The Japanese government will shoulder half of the initial costs as subsidies in exchange for gaining carbon reduction credits,” the report said.
“This trading program has been often used in light-emitting diode lighting and air conditioning.”
The latest project was the first application in water treatment in Cambodia and the first in which Metawater has been  involved.
Amid international efforts to cut greenhouse gas emissions under the Paris Agreement to combat climate change, Cambodia will gain green technology, while the Japanese government earns credit through the activities of a Japanese company.  In turn, Metawater gets to accelerate its business overseas.
Metawater aims to increase overseas sales to $133 million by 2020 − up from $26.5 million in 2015.  The company has focused on big, developed markets such as Europe and the US but says it will step up efforts to cultivate Southeast Asian emerging economies.

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