Energy efficiency in indian buildings

7/29/2019 Energy efficiency in indian buildings

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Shram Shakti Bhavan / TransportBhavanEnergy Services Performance Contracting Project

kiloWatthour (kWh) Value of savings @ Rs. . / kWh666

Lighting666666 .1 1 1 1 1 1 1 1 1

Air-conditioner 1 1 1 1 1 1 .66666666

Canteen Heating 66666 .6666666

Winter Heating 666666 .6666666

Pumping 66666 .666666

Total 666666 .66666666

Summary of annual savings f

rom variousEEMs

uaranteed savings - 788143 kWh / year


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Lightin

. %6666Canteen heatin

. %666

Winter heatin

. %1 1 1 1

Pumpin

. %666

AC

. %1 1 1 1

Percentage contribution to savings byvarious EEMs


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EEM # 1 - Lighting

Estimated contribution to gross savings 38.26%

Proposed improvements are

Replace existing fluorescent tube lights withenergy efficient T-5 fluorescent tube lights andelectronic ballast

Replace GLS lamps with CFL / T-5 FTL withelectronic ballast

Replace sodium vapour / metal halide streetlights with T-5 FTL-based weatherproof streetlights


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EEM # 2 - Air-conditioning



Install occupancy sensor above work-table, toensure that AC operates only when the space isoccupied.

Integrate a wireless thermostat in the samesensor which helps in controlling the workplacetemperature (instead of the regular ACthermostat which measures the return-air pathtemperature)

Have hand-held field programming devices for


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EEM # 3 - Canteen Heating


Proposed improvement is

Replace existing electrical storage geysers withenergy-efficient LPG-fired on-line water heaters

Cost of additional LPG expense to be borne by the

ESCO


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EEM # 4 - Winter Heating



In air-conditioned space, use the occupancysensor and wireless thermostat to regulate theusage of the heaters within a set temperature

range and at the time of occupancy only In non-air-conditioned space, replace existing

electrical blowers with more efficient (hencelower capacity) blowers / quartz heaters withrotary operation to ensure proper heat circulation


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EEM # 5 - Water Pumping


Proposed improvement is

Replace one 10 HP water pump each in ShramShakti Bhavan and Transport Bhavan premises,with efficient submersible pumps

All other pumps have been installed after 2002,and hence, need not be replaced now.


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Project schedule at a glance

Ends

-Jul

66 -A

ug

6-Aug

66

-Aug

66

-Aug

11 -S

ep

6-Sep

66

-Sep

66

-Sep

11 -O

ct

6-Oct

6-Oct

11

-Oct

66

-Oct

11 -N

ov

6-Nov

66

-Nov

66

-Nov

66 -D

ec

6

Starts

-Jul

66

-

Aug

6 -Aug

6

-Aug

66

-Aug

66

-Aug

66

-

Sep

6

-Sep

66

-Sep

66

-Sep

66

-

Oct

6

-Oct

66

-Oct

66

-Oct

66

-Oct

66

-

Nov

6

-Nov

66

-Nov

66

-Nov

66

Week

6 6 6 6 6 6 6 6 6 66

66

66

66

66

66

66

66

66

66

ASASASASASASASASASAS

ASAS

Sl.No.

Activity

6 Receipt of approval from CPWD

6 Obtaining permissions

6 Submittals of plans & specifications

6 Equipment / material acquisition

6Mobilization

6 Final inspecition

6 Installation at site

6 Clean up

66Training

11 Notice of substantial completion

66Post-installation submittals

6 Start-up / testing

A - Actual

S - Scheduled


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Case Study: DISCOM model, AECo,Ahmedabad

Total installation base 70,000 Nos. T-5retrofit FTL (and stillgrowing)

Savings in VA 4.2 MVA

Participants Individual

consumers Current status Ongoing


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The DISCOM model - advantage utilities

Reduced peak demand load on account of energy

savings.

Improved power factor, enhanced systemcapacity and lower T&D losses - all at zeroinvestment.

60 kVA reduced load for every 1000 unitsinstalled.

Additional revenue by way of collection charges.

To pay money to AEL only if the money iscollected from consumer.


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The DISCOM model - advantage consumers

Reduced energy bill.

Monthly installments can be paid from savings.

Easy retrofit installation in existing fittings - nochange in wiring

Increased and better quality of light.

Model available to cater to new fittingrequirement

Documents

Energy efficiency in indian buildings