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Energy Efficiency in Apartments

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A Case Study of an Energy Efficiency project in a Mid Sized Apartment complex

Saxena & Raja Sekhar
Midway City Owner’s Association

Moderators:
Pradeep Rao, CEO, Siant Energy Solutions Pvt. Ltd.
R.K.Iyer, M.D., Yieldopia Energy Pvt. Ltd.

Published in: Technology, Business
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Energy Efficiency in Apartments

  1. 1. Energy Efficiency in Apartments A Case Study of an Energy Efficiency project in a Mid Sized Apartment complex Saxena & Raja Sekhar Midway City Owner’s Association Moderators Pradeep Rao, CEO, Siant Energy Solutions Pvt. Ltd. R.K.Iyer, M.D., Yieldopia Energy Pvt. Ltd.
  2. 2. Property Details  Concorde Midway City  Located near Electronic city  5 Acres Campus  7 Blocks  240 Apartments
  3. 3. Problem Statement  Our Common area lighting needed upgrade to improve visibility for residents  We needed to improve the lighting ,save energy and get decent payback on investment from the savings
  4. 4. Approach Taken  Energy Audit – study of energy usage patterns and identification of major common power consuming items  Data Oriented – use monthly bills as reference  Employ a gradual process  Analyze and present the results  Get buy in from all residents  Plan next steps
  5. 5. Monthly Power Bill We had monthly bill of Rs.2.2 Lakhs for common power consumed by  Common area lighting  Waste Treatment Plant (WTP)  Lifts
  6. 6. Implementation Following measures were taken  Analyzed all the 8 BESCOM bill, later performed load balancing  Replaced 6 Sodium lights (1000W) each ~20 (14-24 watt CFL’s)  Replaced all the 26 pole lights from 200w bulbs with 65W or 85W CFL’s  Each Block have 2 lifts, shutting down smaller lift in each block from 11 pm till 6 am.  We have water indicator for Raw water, Treated water, and overhead tank for each block, Once the water reaching ~40% in overhead tank of each block, we were stopping WTP motors (5hp)  Bore well motors (4 to 12 hp) were also stopped once RAW water tank is filled with ~60% capacity.
  7. 7. RESULTS  The project resulted in cutting our monthly bills by nearly 25%  This definitely met our expectations (maybe exceeded?)
  8. 8. Possible next steps  Use of LED Lighting for common areas  Rooftop Solar for Common area lighting , Power Back up , WTP motors , pumping of water  Use of Power conditioning equipment  Use of Inverters for WTP motors  Use of Micro Wind energy , where feasible
  9. 9. THANK YOU!

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