以樓面面積約70平方米的香港典型村屋為例，裝機容量為1.6千瓦的小型天

以樓面面積約70平方米的香港典型村屋為例，裝機容量為1.6千瓦的小型天台太陽能光伏系統，造價約50,000-55,000港元。7 此系統每年可生產約1 560度電，相當於本港家庭平均用電量的三分之一。8 在沒有上網電價的情況下，此太陽能光伏系統每月可為用戶節省電費約150港元。換言之，投資者需約30年收回成本(圖2)。然而，假如電力公司須以高於標準電價(每度電於2018年平均為1.14港元)9 的上網電價購買該系統的產電，可以縮短回本期，而有關幅度則仍需視乎於2018年公布的毛上網電價10 水平及年期而定。

結果 (英文) 1:

With floor area of ​​about 70 square meters of the typical village house in Hong Kong, for example, the installed capacity of 1.6 kilowatts of small-scale rooftop solar photovoltaic system cost about HK $ 50,000-55,000. 7 This system can produce about 1560 kWh of electricity per year, equivalent to one third of our average household electricity consumption. 8 in the absence of tariff, the solar photovoltaic system monthly electricity savings of approximately HK $ 150 for the user. In other words, investors will take about 30 years to recover the cost (Figure 2). However, if the power company shall be higher than the standard price (per kWh in 2018, an average of HK $ 1.14) 9 purchase tariff electricity production of the system, can shorten the payback period, but you still need to depend on the magnitude of about 2018 in Mao published tariff levels and 10-year period may be.

結果 (英文) 2:

Take the typical Village House in Hong Kong with a floor area of about 70 square metres, for example, a small rooftop solar photovoltaic system with a installed capacity of 1.6 kW will cost about HK$50,000-55,000. 7 The system produces about 1,560 degrees of electricity per year, equivalent to one third of the average household electricity consumption in Hong Kong. 8 In the absence of feed-in tariffs, this solar PV system can save users about HK$150 per month in electricity bills. In other words, it takes investors about 30 years to recover their costs (Figure 2). However, if the power company were to purchase the feed-in electricity of the system at a feed-in tariff above the standard tariff (an average of HK$1.14 per degree in 2018), it could shorten the return period, depending on the level and duration of the gross feed-in tariff announced in 2018.

結果 (英文) 3:

Take a typical village house in Hong Kong with a floor area of about 70 square meters as an example. A small rooftop solar photovoltaic system with an installed capacity of 1.6kw costs about 50000-55000 Hong Kong dollars. The system can produce about 1560 kilowatt hours of electricity a year, equivalent to one-third of the average domestic electricity consumption in Hong Kong. In the absence of feed in tariff, the solar photovoltaic system can save users about HK $150 per month. In other words, investors need to recover their costs for about 30 years (Figure 2). However, if the electricity company is required to purchase the electricity production of the system at a feed in tariff higher than the standard tariff (average of HK $1.14 per kwh in 2018), the period of return can be shortened, and the range still depends on the 10-level and year period of the published gross feed in tariff in 2018.