PS.本文的計算是在2006年 因為石油上漲或許電費會提高或是太陽能板的價格會下跌都會改變計算的結果
* CALCULATION: 2 KW complete PV system installed in Phoenix quoted at $16,000 (before any tax rebates or incentives, grid-intertie only,NOT including battery storage)(5). In Phoenix (optimal location), this generates 4,000 KW-hours of electricity per year (5). At prevailing Phoenix rate of electricity ($.10/KW-hour) this is $400/electricity per year. This produces a pay-back time of 40 years if we do not account for the time-value of money. For the purposes of this calculation I will be very conservative and find that actual inflation will equal TVM over this 40-year period. The quoted PV panels have a life-expectancy of 40-years (again, this is conservative as this “complete” system ignores battery storage, which would dramatically decrease the aggregate life expectancy). The resulting price-estimated EROEI of PV solar is 1:1.
原文出處
Recent Comments