On-Grid Solar System Installation in Bangalore
Grid-connected solar with BESCOM net metering. Export surplus power, slash your bill to near zero, claim PM Surya Ghar subsidy up to ₹78,000.
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Quick Answer
- Cost:
- ₹72,000–1.22 lakh (after PM Surya Ghar subsidy) for a 3kW system
- Payback:
- 2–4 years
- Monthly savings:
- ₹2,100–4,000/month on BESCOM bill
- Best for:
- Homes with reliable grid supply and ₹2,000+ monthly BESCOM bill
An on-grid solar system in Bangalore connects your rooftop solar panels directly to the BESCOM electricity grid. During daylight hours, solar power runs your home; any surplus is exported to BESCOM through a bi-directional net energy meter. At night or on overcast days, you draw from the grid as normal — but those imports are offset by your export credits. With the right-sized system, most Bangalore households achieve near-zero monthly bills. Pratham Solar has completed 500+ on-grid installations across Bangalore and handles the entire BESCOM application process.
How Does BESCOM Net Metering Work for On-Grid Solar?
BESCOM's net metering policy allows on-grid solar owners to export surplus power to the grid and receive credits on their electricity bill. The bi-directional meter measures both import (from grid) and export (to grid) separately.
Solar generates power
During daylight hours, your panels produce DC power. The grid-tied inverter converts it to AC power matching BESCOM's 230V, 50Hz supply.
Home consumes first
Your home's loads — lights, AC, appliances — are powered by solar first, reducing grid draw to zero whenever solar production exceeds consumption.
Surplus exported
Any excess power that your home can't consume flows back into the BESCOM grid via the bi-directional meter. BESCOM records these units separately.
Credits offset your bill
At ₹3.56/unit current BESCOM rate, exported units are credited against imported units. Your monthly bill reflects only the net difference.
Current BESCOM export rate (2025)
₹3.56 / unit
Reviewed periodically by KERC. Pratham Solar tracks rate changes and advises accordingly.
Is On-Grid Solar the Right Choice for Your Home?
Reliable BESCOM supply
Areas with consistent grid power — Koramangala, JP Nagar, Banashankari, HSR Layout, Whitefield.
Monthly bill above ₹1,500
On-grid makes economic sense from ₹1,500/month. Higher bills = larger system = higher savings.
4+ hours direct sunlight
South or west-facing roofs in Bangalore typically receive 4.5–5.5 peak sun hours daily.
Priority: lowest cost
No batteries means lowest upfront cost and fastest payback — typically 3–5 years.
What Size On-Grid Solar System Do You Need in Bangalore?
| Monthly Bill | System Size | Monthly Generation | Approx Cost* |
|---|---|---|---|
| Up to ₹1,000 | 1 kW | ~120 units | ₹55,000–70,000 |
| ₹1,500–2,500 | 2 kW | ~240 units | ₹90,000–1,20,000 |
| ₹2,500–4,000 | 3 kW | ~360 units | ₹1,20,000–1,60,000 |
| ₹4,000–7,000 | 5 kW | ~600 units | ₹1,80,000–2,40,000 |
| ₹7,000–15,000 | 10 kW | ~1,200 units | ₹3,50,000–4,50,000 |
*Before PM Surya Ghar subsidy. After subsidy of up to ₹78,000, net cost reduces significantly for 1–3kW systems.
What Components Make Up an On-Grid Solar System?
Solar Panels
Adani, Waaree, or Topcon N-type monocrystalline panels (400–540Wp). Pratham Solar specifies panels based on roof area and budget.
Grid-Tied Inverter
Single-phase (up to 10kW) or three-phase (10kW+). Brands: Growatt, Solis, Goodwe. App monitoring included.
AC/DC Wiring & Conduit
Copper wiring, MC4 connectors, DC isolators, AC isolation switch. All to IS/IEC standards.
Mounting Structure
Hot-dip galvanised steel or aluminium rails. Designed for Bangalore's wind zone and roof type (RCC, metal, or Mangalore tile).
Bi-Directional Net Meter
Supplied and installed by BESCOM after approval. Measures import and export separately for net billing.
BESCOM Application
Pratham Solar handles the complete application: technical drawings, DISCOM form submission, inspection, and follow-up.
How Much PM Surya Ghar Subsidy Can You Get for On-Grid Solar?
The PM Surya Ghar Muft Bijli Yojana provides central government subsidy for residential on-grid solar installations. Pratham Solar is registered on the PM Surya Ghar portal and assists with the complete application at no extra charge.
First 2 kW
₹30,000/kW
Up to ₹60,000
2–3 kW slab
₹18,000/kW
Up to ₹18,000 additional
Maximum subsidy
₹78,000
For 3kW+ systems
Pratham Solar handles the portal registration, document upload, installation report submission, and MNRE follow-up. Subsidy is credited directly to your bank account after commissioning.
Frequently Asked Questions
What is an on-grid solar system?
Can an on-grid system work during power cuts?
What is the BESCOM export rate for solar in 2025?
How long does on-grid solar installation take in Bangalore?
Is PM Surya Ghar subsidy available for on-grid systems?
Want backup during power cuts? See our Hybrid Solar or Off-Grid Solar pages. Have questions? Visit the FAQ page.
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