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11 <br />Www' <br />ti <br />Figure 5:A Connectable being used by students to charge their laptops. <br />The version seen in Figure 5 is one of the more popularly sold ones and is called the "Café <br />Model"design. For purposes of this report,this is the model that will be compared to the Elk <br />River Solar Project(ERSP). The ConnectableTM Café Model uses two solar panels to <br />generate 530 Watts DC,has two deep cycle lead acid batteries for energy storage, and has <br />four GFCI outlets for AC power access [5]. There are also 8 DC USB outlets for direct cell <br />phone charging: A detailed technical comparison between the ERSP and the <br />ConnectableTM <br />can be seen below in Table 1. <br />Table 1:A technical comparison between the heavily marketed and mass produced Cafe Model and the prototype ERSP. <br />Components <br />ConnectableTM Elk River SP <br />Solar Panels 530 W from 2-panel array 750 W from 3-panel array <br />Charge Controllers Morningstar TS-MPPT 45 Morningstar TS-MPPT 60 <br />Energy Storage <br />2 x 112 Amp Lead Acid 2 x 104 Amp Hour AGM Lead Acid <br />batteries battery