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An industrial consumer has a maximum a demand of 1 MW at power factor of 0.8 lagging and annual load factor of 65%. The tariff used is OMR 0.7 per KVA of maximum demand plus 18 baisa per unit consumed. Calculate (i) Annual bill and (ii) flat rate per unit. (estimated

User Michid
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To calculate the annual bill and flat rate per unit for the industrial consumer, we need to consider the maximum demand, power factor, load factor, and the tariff structure.

Given data:

Maximum demand (MD) = 1 MW

Power factor (PF) = 0.8 lagging

Annual load factor (LF) = 65%

Tariff: OMR 0.7 per KVA of maximum demand + 18 baisa per unit consumed

First, let's calculate the following values:

(i) Maximum demand in KVA:

Maximum demand in KVA = MD / PF

Maximum demand in KVA = 1 MW / 0.8

Maximum demand in KVA = 1.25 MVA

(ii) Annual energy consumption:

Annual energy consumption = Maximum demand (KVA) * Annual load factor

Annual energy consumption = 1.25 MVA * 0.65

Annual energy consumption = 0.8125 MVA

(iii) Annual bill calculation:

Annual bill = (Maximum demand in KVA * Tariff rate per KVA) + (Annual energy consumption * Tariff rate per unit)

Annual bill = (1.25 MVA * OMR 0.7/KVA) + (0.8125 MVA * OMR 0.18/unit)

Annual bill = OMR 0.875 + OMR 0.146625

Annual bill = OMR 1.021625

(iv) Flat rate per unit:

Flat rate per unit = Annual bill / Annual energy consumption

Flat rate per unit = OMR 1.021625 / 0.8125 MVA

Flat rate per unit ≈ OMR 1.2578

Therefore, the calculations for the industrial consumer are as follows:

(i) Annual bill: OMR 1.021625

(ii) Flat rate per unit: Approximately OMR 1.2578

User Verhaeren
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