COST OF HYDRO-ELECTRIC POWER PLANTS 



711 



3. Depreciation on plant adjusted between general works 



and equipment to provide for major repairs and re- 

 newals $13,700.00 



4. Operation and maintenance, including management, 



superintendence, wages for operators of plant, trans- 

 mission line, receiving station, storage regulation, 

 minor repairs, supplies, and upkeep, etc 20,650 . 00 



Total annual charges $105,300 . 00 



Cost per Kw. year, delivered 17 . 50 



COST OF THE MlNIDOKA POWER STATION OF UNITED STATES 

 RECLAMATION SERVICE 



Capacity, 7000 Kv.A. 



The power-house is a reinforced concrete structure with steel 

 roof trusses and purlins covered by matched lumber and galvanized 

 corrugated iron. It measures 149 feet in length, 50 feet in width 

 and 90 feet in height. It contains five 2000 H.P. main turbines 

 operating under a head of 46 feet, driving five 1400-Kv.A. 2200- 

 volt generators at a speed of 200 R.P.M. There are also two 180- 

 H.P. turbine-driven exciters and each main generator is directly 

 connected to a three-phase transformer, stepping up the voltage 

 to 33,000. Complete switching and lightning-arrester equip- 

 ment is included in the estimate, but no allowance is made for the 

 dam, this forming part of the irrigation system. 



COST OF POWER-HOUSE 



