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496  A CoMPrEhEnsiVE GUidE To solAr EnErGy sysTEMs




                                                    r(1 +r ) T  
                                                  K   (1 +r ) T  −  1   +C
 LCOEDKr(1+r)T(1+r)T−1+C(MW              LCOE D =                                        (25.9)
 hD⋅365)                                            ( MWh .365)
                                                         D
             where MWh D  is the daily megawatt hours of energy output given ambient conditions on a
             particular day, and all other terms are as defined for Eq. (25.1).
                Fig. 25.2 shows the daily levelized cost of energy (LCOE D ) of producing solar, hydro-
             electric, and wind energy at the Vermont sites modeled, given each day’s ambient energy
             availability.
                in this example, solar PV energy and hydro/wind energy are complementary, with solar
             providing less expensive energy in the summer and hydro/wind energy being less expensive
















































             FIGURE 25.2  LCOE D  for solar, wind power, and hydropower in Vermont example.
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