Economic BenefitAnalysis Of The 10MW Ground Power Station Condition: 10 mw power plant scale,Ⅲ resource area,effective utilization hours 1200 hours,260 watts photovoltaic modules, 4000 pieces photovoltaic panels per mw, electricity price 0.85 yuan perkilowatt-hour, robot maintenance costs by 3%. | Project | Human cleaning | Robot cleaning | | Light polution | Moderate pollution Heavy polluton | Light polution | Moderate pollution | Heavy polluton | | Lose power per year(%) | Western area 3-7% | Eastern area 3-5% | 5% | 8% | 10% | | Promote power per year(Million KW) | —— | —— | 60 | 96 | 120 | | Value of the power promotion per year(ten thousand yuan) | —— | —— | 51 | 82 | 102 | | Equipment investment(ten thousand yuan) | —— | —— | 150 | 150 | 150 | | Life time for the equipment(year) | —— | —— | 10 | 10 | 10 | | Replacement costs of the equiment per year(ten thousand yuan) | —— | —— | 15 | 15 | 15 | | Cost per cleaning(yuan/MW) | Western area 2000-6000 | Eastern area 4000-10000 | NO cost | | Cleaning frequency per year(times/year) | 2-4 times | 365 times or according need | | Cleaning cost per year(ten thousand yuan) | 12 | 18 | —— | —— | —— | | Water usage to cleaning(ton/year) | 200 | 200 | —— | —— | no water | | Cost of thel water(yuan/ton) | 1200 | 500 | no | no | no | | Refund time for the investment(year) | —— | —— | 2.71 | 1.69 | 1.35 | | Rate of return on investment(%) | —— | —— | 34% | 54.40% | 68% |
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