How Does A Single Point Electricity Connection Work In Commercial Complexes And Residential Societies?
What Is A Single Point Electricity Connection?
A Single Point Connection means the electricity utility provides power only up to one designated delivery point. After that point, the responsibility for transformers, switchgear, cables, distribution panels, sub-meters and maintenance generally rests with the developer, promoter or society managing the project.
In a commercial complex containing hundreds of shops, the DISCOM does not normally provide separate electricity connections to every shop. Instead, one bulk connection is supplied to the complex, and the internal electricity network distributes power to individual units.
The utility supplies electricity to the complex. The builder or society supplies electricity within the complex.
How Electricity Flows Inside A Large Complex
The typical electricity flow structure is:
- DISCOM Grid (11 kV / 33 kV / higher voltage)
- Point of Delivery & Utility Meter
- HT Switchgear / RMU
- Step-Down Transformer
- Main LT Distribution Panel
- Block-wise Distribution Panels
- Individual Shop or Apartment Meters
- End Consumers
Common facilities such as lifts, pumps, lighting systems, fire-fighting systems, HVAC units, parking illumination and security systems are also connected through the internal network and separately accounted for.
Who Is Responsible For What?
- Supply electricity up to the delivery point.
- Install and maintain the utility meter as per agreement.
- Bill the bulk consumer for total electricity consumption.
- Provide sanctioned electrical load.
- HT switchgear and RMU installation.
- Transformers and substations.
- Main LT panels.
- Internal distribution cables.
- Individual unit sub-metering.
- Maintenance of electrical infrastructure.
- Collection of electricity charges from occupants.
How Billing Is Calculated
The DISCOM records electricity consumption at the bulk supply meter. The society or developer then allocates the consumption among shops, offices, apartments and common facilities using internal sub-meters.
Typically, billing may include:
- Individual unit consumption.
- Share of common area electricity usage.
- Transformer losses.
- Maintenance charges.
- Backup power costs (if DG sets are installed).
Advantages Of Single Point Connections
- Simplified utility infrastructure.
- Faster project execution.
- Centralized power management.
- Better control over internal maintenance.
- Scalable for large developments.
- Easier expansion of electrical systems.
Important Points Buyers Should Verify
Before purchasing a shop, office or apartment in a project operating under a single point connection model, buyers should verify:
- Single Point Supply Agreement or NOC.
- Sanctioned electrical load.
- Responsibility matrix between utility and builder.
- Method used for electricity billing.
- Allocation of common area charges.
- Maintenance obligations.
- Backup power arrangements.
- Transformer ownership and replacement responsibility.
A single point electricity connection does not mean that the utility directly supplies power to every shop or apartment. Instead, electricity is supplied to the project at one delivery point, while the internal distribution system is owned and managed by the builder, developer, RWA or society. Understanding the ownership and billing structure is critical before investing in any commercial or residential project.
Projects using this model often benefit from efficient power management, but buyers should carefully review agreements to understand how electricity costs, losses and maintenance expenses are distributed among occupants.
This article is intended for educational and informational purposes only. Electricity regulations, supply agreements and billing mechanisms may vary depending on the state electricity regulator, distribution company and project-specific agreements. Readers should consult official utility documents, agreements and applicable regulations before making any decision.
