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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