ENERGY AWARDENERGY AWARD

PROPOSAL FOR NATIONAL ENERGY

CONSERVATION AWARD 2007

Shevapet TE Building, Salem

ENERGY AWARD

Presented by: S. Senguttuvan EE(E), Salem

ENERGY AWARD

Proposal Submitted Based on the Energy Audit Studies Conducted by

1. Shri. V.P.Gupta, PCE(E), Energy Auditor2. Shri. S.P.S. Neemrana, SE(E), Energy Auditor3. Shri. S.Francis Xavier, EE(E)4. Shri. S.Sathyanarayanan, SDE(E),

Energy Auditor5. Shri. C.R.Sreenivasan, SDE(E)6. Shri. S.Ravindrakumar, JTO(E)7. Shri. R.Venkatesh, JTO(E)

ENERGY AWARDENERGY AWARD

ENERGY CONSERVATION ACHIEVEMENTS

HIGHLIGHTED IN THE PROPOSAL

ENERGY AWARDENERGY AWARD

1.Rationalisation of DC load

Diversion of Exchange loads from E10B to EWSD and scrapping E10B

Savings Achieved due to the above measure= Rs 11,68,000/- per annum

Savings in kWH = 23.36kWH

ENERGY AWARDENERGY AWARD

2.Rationalisation of CMD

CMD reduced from 400kVA to 300kVA

Savings Achieved due to the above measure= Rs 3,60,000/- per annum

ENERGY AWARDENERGY AWARD

3.Improvement in Power Factor

Power Factor Improved from 0.99 to unity by switching off excess lighting /inductive loads and frequent monitoring.

Savings Achieved due to the above measure= Rs 30,362/- per annum

Post Audit Measures

Shevapet TE Building Salem

POWER PLANT

Replacement of 2000 A Conventional power plant with SMPS power plant

Existing plant Scrapped. New plant awaited

Target for replacement: Mar’08

POWER PLANTPOWER PLANT

η of old PP = 75%Power consumed by Eqpt = 92kWStandard η of SMPS PP = 95%Power Consumption by new SMPS

= 75% x 92kW / 95% = 73kWDiff in Power consumption

= 92-73 = 19kW

Calculations

POWER PLANTPOWER PLANT

Saving in Energy Consumption per annum = 19kW x 365 x 24 = 166440 units

Cost of Energy per unit = say Rs 5/-

Savings per annum for BSNL = Rs. 8,32,200/-

Calculations

POWER PLANTPOWER PLANT

Cost of new Power plant being enquired to calculate the pay back period of this EC measure

Calculations

AC AC UNITSUNITS

Outlived AC units Replacements

Conf Hall Co axial Room

Existing Capacity

9 TR 72 TR

Proposed Capacity

7.5 TR Heat Load study being conducted (approx. 24 TR is sufficient)

TRANSFORMERTRANSFORMER

Replacement of 750 kVA oil cooled transformer with 400kVA resin cast transformer Age of Existing Transformer > 20years

750kVA 400kVA Diff

Core Loss 3450W 1840W 1610W

No Load Loss data

Annual Savings in kWH=7050 kWH(operation of transformer for six months per year)

Cost of new Transformer being enquired to calculate the pay back period of this EC measure

TRANSFORMERTRANSFORMER

PUMPSPUMPS

Water level controllers for all centrifugal pumpsThree types of controllers identified.

1. Switching off the pump automatically, when the OH tank is full

2. Starting the pump when level in the OH tank is LOW and switching it off when the OH tank is FULL

3. Similar to (2) above & stopping the pump, if water in the source tank (sump) depletes

PUMPSPUMPS

Prices and models suitable for the building are being enquired.

Currently, the pumps are switched off only after water overflows from the OH tank at 7th Floor and attracts staff nearby

GENERAL AWARENESSGENERAL AWARENESS

The PCE(E), Chennai addressed a gathering of over 125 executives on 15/06/2007 to disseminate information on EC act & EC Building Code.

Three Core Group meetings conducted by GMT, Salem SSA during 2007.

The GMT, Salem has approved the proposal for MD controller

All the staff in the building were found to be highly energy conscious and cases of energy wastage due to negligence were found to be minimal.

THANK YOU