Let’s say, for instance, that there are six strings of 280-watt modules supplying a 24 kW inverter as shown in images 1 and 2. If each string has a most present of 12.1 amperes (9.71 A x 125%), then the mixed output of the six strings can be 72.6 amperes in keeping with 690.8(A)(1). Assuming 75°C terminals are used in the equipment, this requires a minimal of four AWG copper conductors. Using the new permissive language in 690.8(A)(2), you possibly can use 8 AWG copper conductors protected with 50-ampere fuses to produce the inverter enter current of 33 amperes x 125% (steady duty) or 41 amperes.
Consequently, conventional funding appraisal methodologies primarily based on deterministic Discounted Cash Circulation (DCF) are inadequate to evaluate these dangers and Montaż instalacji fotowoltaicznych uncertainties, as properly because the investor’s flexibility to cope with them. Because of this, the literature suggests using the true Possibility Evaluation (ROA), which is a useful gizmo in uncertain situations, to assess the worth of risks and uncertainties.
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