This is first out of two-part presentation on Energy conservation efforts made in secretariat building in Gandhinagar. Presentation was made on Energy Conservation Day at Gujarat State Centre, The Institution of Engineers (India) at Ahmedabad.

1. Energy Conservation in
Sachivalaya Complex
Gandhinagar Part 1
By Er Uresh Mehta
Past Chairman, GSC & Chief Engineer(Electrical) (retd)
Roads & Building Department

2. Vitthalbhai Patel Bhavan,
Vidhansabha
Sector No. 10, Gandhinagar
Gujarat

3. Building Details
• Vitthalbhai Patel Bhavan, Vidhansabha
Building,
2 Floors with Double Height
2 Floors with Single Height
• Sardar Patel Bhavan, Sachivalaya
10 Nos. of 10 storied building
4 Nos. 2 storied building

4. Energy Consumption Details
(July’2001 to June’2002)
Approx. Annual consumption in
Units = 7868550
Annual Consumption in
Rs. 3,58,78,269/-

5. Electricity Details
• Source of Electricity :-
M/s Torrent Power A.E.Co. Ltd. Ahmedabad
• Supply Voltage:-
11 Kv
• Contract Demand :-
3400 KVA
• Average monthly consumption :-
(July'2001 to June'2002)
655713 Units and Rs.2989856/-
• Average P.F.:-
0.93

6. Information regarding
Electrical Installations
at
Sachivalaya Complex
Gandhinagar

7. Electrical Utility Details
• No. of transformers
8 Nos. Each 1000 KVA
• No. of pump, motors for water supply –
41 Hp 2 Nos., 25 HP-4 Nos
• Central A.C. Plant –
1050 Ton
• No. of Window Type / Split A.C. Machine 1.5 Tons –
500 Nos
• No. of Water Coolers - 150 Ltrs. –
125 Nos
• No. of Lifts –
46 Nos. (2.5Mt/ Second , 1.5Mt/ Second, 1Mt/ Second Speed)

8. Electrical Utility Details
• No. of Escalators –
4 Nos
• No. of Ceiling Fans :-
12000 Nos
• No. of Tube Light Fittings :-
27000 Nos
• No. of Computers :-
3000 Nos
• No. of Compound Light Poles :-
210 Nos
• No. of Helogen Fittings in Assembly Hall –
48 Nos

9. Energy Savings in Lighting Loads:-

10. Application of T/5 Tube lights by
replacement of conventional tube lights
Total 17500 Nos. of Tube Lights replaced in
Different Blocks and Vidhansabha Building

11. Project cost is
NIL for 7500 nos.
The above project is taken upon hand and
completed in
demand side management project.
So the initial expenditure incurred in the
project is
NIL

12. Advantages for Replacement of
conventional Tube Lights by
T/5 Tube Lights
• The Consumption reduced by approx. 44%
• Reduction in total no. of Tube Lights
• Reduction in maintenance cost