(i) Private oil engine generating plant
 Annual fuel consumption = 1314000 kg 
 Annual cost of fuel = Rs. 2102400 
 Annual cost of maintainence and repair = Rs. 21900 
 Annual wages = Rs. 50000 
 Annual interest and depreciation = Rs. 120000 

 Total annual charges = Rs. 2294300 

(ii) Public supply
 Annual fixed charges = Rs. 150000 
Annual running charges = Rs. 657000 
Total annual charges = Rs. 807000 


