1.
Energy Conservation/
Renewal Energy Initiatives
Raheja Eternity Housing Society, Thakur Village,
Kandivali (East), Mumbai 400101.
108-09-2018
Presented for ADDA Rise High
Awards 2018

2.
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3.
Introduction
Salient Features:
❖ Building has 229 flats with three wings and 20 floors.
❖ It is located just adjacent to National Park.
❖ It has an over all area of 5,10,000 sq ft with two levels below
ground level for parking.
❖ Occupancy started from April 2016.
❖ Society formed in December 2016.
308-09-2018

4.
Introduction
Salient Features (cont…)
▪ On the month of Society Formation, the monthly maintenance charge was Rs.
18000/-.
• It was in fact extremely high.
• On examining, found the high cost of maintenance was due to the combination
of various factors.
• One of the them found was on:
• Very High Energy Consumption at more than 25000 units/month
• As a result, Very High Energy Bill at more than Rs. 3,60,000/- per month
To control this energy factor, Immediate Initiatives on Energy Conservation and
Renewal Energy Generation was initiated .
408-09-2018

5.
View of Raheja Eternity
508-09-2018

6.
Wholesomeness of the Initiatives
• Initiatives taken that resulted in following fruitful results:
• As on date the energy scenario is:
• Energy consumption came down from 25900 to 6800
units/month
• Energy bill came down from Rs. 3,59,280/- to Rs. 20,000/- per
month
608-09-2018

7.
Energy Conservation
708-09-2018

8.
Energy Conservation
808-09-2018

9.
Savings from Energy Conservation
908-09-2018

10.
Initiatives on Energy Conservation in Dec -16
Month Action Initiated
Dec-16 Regulations of high wattage lights in parking area
❖There were 541 high wattage tube lights in two levels
❖All of them were switched on for 24 hours
❖Selectively regulated the timings
❖50% of them were used for 12 hours and the rest for 24 hours
❖Energy conservation was in the tune of 70 units per day
1008-09-2018

11.
Initiatives on Energy Conservation in Jan & Feb-17
Month Action Initiated
Jan-17
&
Feb-17
Replacement of entire high wattage tube lights with LEDs in parking area
❖There were 541 high wattage tube lights in two levels
❖All of them were replaced with LED bulbs
❖Identified and Isolated unwanted electrical loads
❖Replacement took 2 months
❖Energy conservation was in the tune of 235 units per day
1108-09-2018

12.
Initiatives on Energy Conservation in Mar-17
Month Action Initiated
Mar-17 Replacement of entire high wattage lights with LEDs in Lift Passages
❖There were 360 high wattage tube lights in 60 passages
❖All of them were replaced with LED bulbs
❖Replacement took more than one months
❖Energy conservation was in the tune of 165 units per day
1208-09-2018

13.
Initiatives on Energy Conservation in Apr-17
Month Action Initiated
Apr 17 Modification in Electric Circuit in stairs
❖There were 60 high wattage tube lights in stair cases
❖All of them were replaced with LED bulbs
❖Stair case lights were attached to the passage lights , running for 24
hours.
❖Modified the circuit and isolated the operation of stair lights
❖Regulated the time of operation of stair bulbs
❖Energy conservation was in the tune of 25 units per day
1308-09-2018

14.
Initiatives on Energy Conservation in May-17
Month Action Initiated
May 17 Energy Conservation in Elevators
❖There are nine large elevators .
❖Each Elevator had 6 high wattage tube lights.
❖Total there were 54 tube lights in 9 elevators, replaced with LEDs
❖Introduced sleep mode in the elevator electric circuit.
❖With this mode, lights are automatically switched off , if the lift is not
used for more than a minute.
❖Energy conservation was in the tune of 87 units per day
1408-09-2018

15.
Initiatives on Energy Conservation in June-17
Month Action Initiated
June 17 Energy Conservation through Rooftop Solar
❖First phase of Rooftop Solar System( 65kw) commissioned.
❖The power generation is connected to Tata Power Grid.
❖During the month, there has been reduction in monthly energy bill by
Rs. 50,000/- .
❖Renewal Energy generation through Solar System started.
1508-09-2018

16.
Initiatives on Energy Conservation in July-17
Month Action Initiated
July 17
&
Aug 17
Energy Conservation through Installation of Motion Sensors & Second
Phase of Solar System
❖Second phase of Rooftop Solar System(16.5 kw) erection started.
❖Meanwhile, installed 55 motion sensors on stairs for further
conservation of energy.
❖Renewal Energy Generation further saved is 15 units/day
1608-09-2018

17.
Initiatives on Energy Conservation in Sept-17
Month Action Initiated
Sept 17 ❑ Energy Conservation through Installation of Second Phase of Solar
System.
❑ Commissioned the 16.5 kw Solar System on 26/9/17.
❖With total installed capacity of 81.5 kw Solar System, the peak
generation was 377 kwh ( units) per day.
1708-09-2018

18.
Rooftop Solar & Residents’ Involvement
1808-09-2018

19.
Execution
Staff Involvement:
The in-house staff were fully involved in executing:
❖ Removal of high wattage tube lights fittings.
❖ Fixing fittings for more than 600 LED bulbs
❖ Fixing of more than 55 Motion Sensors
❖ Regular weekly cleaning of Solar Panels
❖ Monitoring daily generation of energy from Solar
1908-09-2018

20.
Execution
Residents’ Involvement:
There has been deep involvement of residents at different stages for:
➢ Procurement of LED products & Fittings
➢ Preparation of specs for Rooftop Solar and getting them vetted
through TERI, Delhi and awarding the job.
➢ Obtaining approval from M/s Tata Power prior to installation of Solar
System.
➢ Replacement with LED bulbs and erection of Rooftop Solar.
Moreover, nothing would have been possible without the approval of residents in AGMs.
2008-09-2018

21.
Reduction in CO2 Emission (Tons/Month)
2108-09-2018

22.
Month wise Energy Consumption since inception(units)
2208-09-2018

23.
Impact
• Environmental:
➢Reduction in Emission of CO2 by 66%
➢Reduction on Energy Consumption by 74%
• Social:
➢Highly impacted to the residents near by to replicate such steps on Energy Conservation
➢Society Children have been highly energised and self motivated to sustain the movement.
• Financial:
➢Saving in terms of monthly energy bills by 94%
➢One of the major contributors in the Reduction of Maintenance Bill by 78%, from Rs.
18000/- per month in Dec 16 to 4000/- per month as on date.
2308-09-2018

24.
Thank you very much
Raheja Eternity,
Thakur Village, Mumbai
2408-09-2018