Description of the project activities
presently overall rated power capacity (Prtd) of the Tashkent city out-door
lighting electric grid is 29469,0 kW .
Data about consumption, losses and saving of electrical energy in net-works of outdoor lighting is presented in annual balance of power consumption for 2009, you can see in the Table № 1.
1.1. From balance of power consumption we can see that the common expenditure of electrical energy makes 65548,5 GWh (50,9 %). The difference be-tween settlement expenditure of the electric power, for the given concrete working conditions of networks of outdoor lighting, and to actual expenditures under indi-cations of electric meters, defines the value of total losses (saving) of the electric power depending on factors of electro installations inevitably accompanying at maintenance including electric systems of outdoor lighting and makes 63206,2 GWh (49,1 %).
annual consumption of electricity at 100 % of operating of outdoor
|Reduction of electric energy consumption for the reasons independent from SUE "Toshshaharnur"|
Emergency-recovery works, fan discon-necting and others in
networks of JSC “TashGorPES”
|Emergency-recovery works in outdoor lighting networks
of SUE "Toshshaharnur"
|Continuation of table №1|
|Electric Energy saving activities||Losses in
networks of outdoor lighting at cosf=0,92
an-nual saving of electrical energy for 2008
con-sumption of the electric-ity by indica-tions of elec-tricity supply
|Disconnecting of outdoor lighting during capital
construc-tion and overhauls
|Introduction of limitations
t - average daily time of outdoor lighting in hours (11 h.);
365 - quantity of days in a year.
Ertd.year = 32188,68 *4 000 = 128 754 720 MWh. (128 754,7 MWh.) .
2. Within the scope of project realization following activities are offered:
2.1. Replacement of lanterns with the mercury lamps having luminous ef-ficacy up to 55 lm/W, notably lanterns with lamps AML (Arc Mercury Luminifer-ous) 400 – 7 110 pc., AML 250 – 40 198 pc., ALM 210 – 702 pc., AML 125 – 19 260 pc., ALM 80 – 1 326 pc., with sodium lamps, having luminous efficacy up to 80 lm/W, notably lanterns with lamps AST (Arc Sodium Tubular) AST 70 – 3 500 pc., AST 100 – 4 122 pc., AST 150 – 3 831pc., AST 210 – 386 pc., AST 250 – 14 499 pc., AST 400 – 17 749 pc., and also lanterns with bulbs and direct switch-ing 277 pc. with more power to more power efficient lanterns with improved light-ing characteristics (efficiency, sealed optical block, vandalproof performance etc.) with smaller power with sodium lamps.
Concerning offered lamps for using, they are power effective sodium lamps (50 W – 8000 pc., 70 W – 17 054 pc., 100 W – 43 904 pc., 150 W – 14 659 pc., 250 W – 22 028 pc., 400 W – 1 979 pc.), and metal halogen (100 W – 4 342pc., 150 W – 994 pc.,) with luminous efficacy up to 117 lm/W and above.
2.2. Replacement of existing feeding centers (FC) of different types (Ex-ecutive Point of Distributive Line - EPDL, Executive Point of Outdoor Lighting - EPOL, Outdoor Thyristor Distribution Box - OTDB and others) operated under cascade schemes of mechanical time relay and telecells on direct lines of tele-communication in quantity – 1546 pieces, to innovative system of outdoor lighting with software operation, equipment which has higher lighting parameters and de-sign. Offered lanterns of new generation with aluminum case, which have double level of protection, providing the maximum guarantee from dust and moisture hit under operating conditions in Republic of Uzbekistan and promoting substantial increase of service life of all lighting facilities as a whole.
2.3. Carrying out of energy audit, optimization of placing and choice of lighting devices will allow additional decreasing of power consumption up to 4 %.