Question: Refer to Example. Would the pump recommendation change if the cost of electricity was $0.15 per kWh? What if the pumps were only required for 3,000 operating hours?
EXAMPLE 2-11
Investing in Electrical Efficiency Two pumps capable of delivering 100 hp to an agricultural application are being evaluated in a present economy study. The selected pump will only be utilized for one year, and it will have no market value at the end of the year. Pertinent data are summarized as follows:
If electric power costs $0.10 per kWh and the pump will be operated 4,000 hours per year, which pump should be chosen? Recall that 1 hp = 0.746 kW.