Instead , savings in energy and raw materials , as well as increases in productivity , offset the cost of the pollution - abating , energy - saving improvements 利用這個模式獲得的在能源、原材料方面的降低耗損以及增產所帶來的經濟效益抵消安裝環(huán)保設施的費用。
A rough breakdown : $ 11 million for filtering out air pollutants ; $ 28m saved in energy consumption ( less need for air conditioners ) ; $ 36m for stemming storm - water run - off ; and $ 53m in “ aesthetic benefits ” 粗略分類如下:過濾空氣污染物, 1100萬美元;減少能源消耗,節(jié)省2800萬美元(對空調的需求減少) ;阻止雨水流失, 3600萬美元; “美化環(huán)境” , 5300萬美元。
Whether it has worked out the costs incurred by the government departments and public organisations in switching to the use of such installations , their annual savings in energy expenditures and respective cost recovery periods ; if not , the reasons for that ; and (三)有否計算已轉用有關裝置的政府部門及公營機構須付出的成本、每年可節(jié)省的能源開支及回本期;若否,原因為何;及