Calculate the utility bills for an industrial customer serviced by OG&E under two rates:

i. Conventional rate with the following charges:

Customer charge: $150.00 Energy charge: $0.0264/kWh Demand charge: $13.1/kW ii. RTP rate structure with the hourly prices given in Table 2.15 . In addition, a customer charge (referred to as an administrative charge) of $300 is incurred monthly by the customer under the RTP rate.

The hourly energy use and the contracted CBL profiles (for the RTP rate) are summarized in Table 2.16 for typical week and weekend days (data provided by Mont and Turner, 1999).

Assume that the month has 21 weekdays (including two curtailment days) and 9 weekend days. In the utility bill calculations, do not account for any other charges such as taxes and credits.

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TABLE 2.15 Day-Ahead-Price and Noncurtailment Days Hour 0:00-1:00 1:00-2:00 2:00-3:00 3:00-4:00 4:00-5:00 5:00-6:00 6:00-7:00 7:00-8:00 8:00-9:00 9:00-10:00 10:00-11:00 11:00-12:00 12:00-13:00 13:00-14:00 14:00-15:00 15:00-16:00 16:00-17:00 17:00-18:00 18:00-19:00 19:00-20:00 20:00-21:00 21:00-22:00 22:00-23:00 23:00-24:00 Rates from OG&E Utility for Typical Curtailment Noncurtailment Rate Price (S/kWh) 0.01673 0.01683 0.01730 0.01780 0.01900 0.02130 0.02730 0.02890 0.02932 0.03213 0.03575 0.03423 0.03456 0.03677 0.03977 0.04254 0.04354 0.03595 0.02587 0.01950 0.01523 0.01532 0.01723 0.01722 Curtailment Rate Price ($/kWh) 0.01673 0.01683 0.01730 0.01780 0.01900 0.02130 0.02730 0.02890 0.02932 0.03213 0.03575 0.03423 0.03456 0.03677 0.03977 1.06350 1.08950 0.89875 0.64675 0.48750 0.01523 0.01532 0.01723 0.01722