Housing societies · Mumbai
Lower common-area electricity bills for Mumbai housing societies
In most Mumbai co-operative housing societies the common meter pays for lifts, water pumping, corridor and parking lights, the club house and increasingly EV chargers. These loads run every day, often on old equipment, and the bill is shared by every member through maintenance charges.
A WattAudit energy audit goes through each of those loads on site, reads the last twelve common-meter bills from BEST, Adani Electricity, Tata Power or MSEDCL, and gives the managing committee a costed list of measures with payback — written so it can be tabled at a general body meeting.
Where the money goes
Lifts on old drives
Geared lifts without VVVF or regenerative drives, cabin lights and fans that never switch off, and high standby draw.
Water pumping
Transfer pumps far from their best efficiency point, missing tank level controllers, overflowing overhead tanks and hydro-pneumatic systems set at high pressure.
Common lighting running all day
Staircase, corridor and parking lights without timers or motion sensors, and compound lights without photo-sensors.
Bill-side losses
Common areas billed in a commercial category instead of residential common, low power factor, or sanctioned load and contract demand far above actual use.
What the audit covers
- 01
Common-meter bill analysis
Twelve months of bills checked for tariff category, fixed charges, power factor and demand.
- 02
Lift, pump and lighting survey
Each lift, pump and lighting circuit inspected and logged with ratings, running hours and condition.
- 03
Costed measures
LED and controls, pump replacement or VFDs, lift drive upgrades, tank auto-cutoff, APFC — each with cost, saving and payback.
- 04
Savings per flat
Savings shown per flat per month as well as annual totals, so members see what it means for maintenance.
Rooftop solar opportunity
Terraces of residential buildings are often well suited to rooftop solar for common facilities. The audit sizes a plant from your shadow-free terrace area, common-meter consumption and sanctioned load, and shows the estimated generation and savings at your actual tariff.
- Central financial assistance for housing societies / RWAs for common facilities, subject to scheme eligibility
- Financing available to registered housing societies
- Net-metering application filed and followed up with your DISCOM
- 5 years free AMC
Indicative estimate based on your bills; final design after site survey. Subsidy subject to scheme eligibility.
Solar installation by Saksham Solar, an Energent India partner · sakshamsolar.in
Frequently asked questions
Is the energy audit really free for housing societies?
Yes. The energy audit for registered housing societies is free. You receive the full report with measures, costs and payback; there is no obligation to buy anything.
What does the committee need to provide?
The last 12 common-meter electricity bills, access to the meter room, pump room, lift machine rooms and terrace, and a committee member or the society manager during the visit.
Our common area is billed as commercial. Can that be changed?
Common areas of residential buildings are generally eligible for the residential common tariff category. The audit checks your category against the applicable tariff order and, if it is wrong, we help you prepare the application to your DISCOM.
Can committee members see the report online?
Yes. The chairman, secretary and treasurer can be invited as viewers of the society's reports in WattAudit.
Who installs the rooftop solar?
Solar installation is by Saksham Solar, an Energent India partner. The audit gives an indicative size and saving; the final design follows a site survey.