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2013年9月18日,新加坡第二座海水淡化厂——大泉海水淡化厂(Tuaspring)——建成投产,李显龙总理亲自主持开幕(http://www.zaobao.com/news/singapore/story20130919-254587)。自此,新加坡海水淡化供水能力达到1亿英制加仑/日,占每天用水量4亿加仑/日的1/4。
第一座新泉海水淡化厂每天约可淡化约3000万加仑的水。
第二座大泉海水淡化厂每天可淡化7000万加仑(31.823万方/日)。该厂投资10亿500万新元,按1新加坡元=4.9207人民币元,换算成人民币为49.453亿元,相当于每(方/日)投资15540元,或者每(吨/年)投资44.4元。
据此数据可以对大泉水厂的供水成本进行粗略估算。如果按利率6%、回收年限12年计算,则每供一方水的投资分摊为5元。如果年运行费按总投资额的8%估算,则每方水的运行费为3.5元左右,其中能源消耗约2.4元/方。供水总成本为8.5元/方。因为不知道详细的运行费,这里只是粗略的估计,如果有朋友知道详细的情况,诚望告知!
新加坡水价包括直接水费(Water tarrif)、水资源保护税(Water Conservation Tax)和排污费(Sanitary Appliance Fee and Waterborne Fee),具体计价方式比较复杂,(http://www.pub.gov.sg/general/pages/watertariff.aspx)。
但新加坡采取的水价政策是不仅要回收成本,而且要反映水的稀缺价值,实际上采用了边际成本定价制。直接水费就在6¥/方左右,加上保护税、排污费,肯定可以回收海水淡化的成本8.5元/方
Water Tariff in Table Format
Tariff since 1 Jul 2000
Tariff Category | Consumption Block (m3 per month) | Tariff($/m3) [before GST] | Water Conservation Tax (% of tariff) [before GST] |
---|---|---|---|
Domestic | 0 to 40 | 1.1700 | 30 |
Above 40 | 1.4000 | 45 | |
Non-Domestic | All units | 1.1700 | 30 |
Shipping | All units | 1.9200 | 30 |
Tariff Category | Consumption Block (m3 per month) | Waterborne Fee ($/m3) [before GST] | Waterborne Fee ($/m3)* [after GST] | Sanitary Appliance Fee [before GST] | Sanitary Appliance Fee * [after GST] |
---|---|---|---|---|---|
Domestic | All units | 0.2803 | 0.30 | $2.8037/- per chargeable fitting per month | $3.00/- per chargeable fitting per month |
Non-Domestic | All units | 0.5607 | 0.60 | ||
Shipping | All units | 0.5607 | 0.60 |
NEWater Tariff (before GST)
Tariff since 1 Apr 2012
Tariff Category | Consumption Block (m3 per month) | Tariff (cents/m3) | WCT (% of tariff) | WBF (cents/m3) |
---|---|---|---|---|
NEWater | All units | 122 | - | 56.07 |
Industrial Water Tariff (before GST)
Tariff with effect from 1 Oct 2012
Tariff Category | Consumption Block (m3 per month) | Tariff (cents/m3) | WCT (% of tariff) | WBF (cents/m3) |
---|---|---|---|---|
Industrial Water | All units | 58 | - | 56.07 |
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