Power station 17

 Question = A generating station has a connected load of 40 MW and a maximum demand of 20 MW , the units generated being 60 × 10⁶ kWh . (1) the demand factor (2) the load factor . ? 

Solution = is given , 

»  connected load = 40 MW ,

» maximum demand = 20 MW or , 20,000 kW , 

» unit generated per annum = 60 × 10⁶ kWh , 

(1) Demand factor = maximum demand ÷ connected load. = 20 MW ÷ 40 MW = 0.5. Answer ✓ 

(2) load factor = average demand ÷ maximum demand , 

» So , average demand = unit generated per annum ÷ hours in a years , 

» 24 hours  × 365 days= 8760 hours , 

» AV. D. = 60 × 10⁶ kWh ÷ 8760 hours , = 6849.315 kW , 

» L.F. = 6849.315 kW ÷ 20 × 10³ kW , = 0.3424 , 

» for % = × 100 , = 0.3424 × 100 = 34.24% , answer ✓ 

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