Bengaluru is one of India’s most active solar markets in 2026, driven by BESCOM (Bangalore Electricity Supply Company) residential tariffs that charge more per unit at higher consumption, and a tech-savvy homeowner base that understands long-term asset value. The city gets 5.2 to 5.6 peak sun hours per day, consistent year-round thanks to Karnataka’s stable climate. After the PM Suryaghar subsidy of ₹78,000, a 3 kW system costs ₹1,25,000–₹1,55,000, a 5 kW system costs ₹1,85,000–₹2,25,000, and a 10 kW system costs ₹3,30,000–₹4,15,000.
Key takeaway. Solar installation in Bengaluru costs ₹1,25,000–₹4,15,000 after PM Suryaghar subsidy, depending on system size. BESCOM’s higher-slab tariffs and 5.2 to 5.6 peak sun hours make payback roughly 4 to 6 years. Heaven Green Energy is an MNRE-empanelled installer that handles BESCOM net metering and PM Suryaghar subsidy end-to-end.
Bengaluru’s solar market has matured considerably since 2022. BESCOM has streamlined its net metering process, Karnataka has a published Renewable Energy Policy, and the PM Suryaghar portal has simplified the subsidy application. This guide covers everything a Bengaluru homeowner needs: costs by system size, the BESCOM approval process, common mistakes, and a framework for evaluating quotes.
Why Bengaluru Is a Strong Solar Market
BESCOM’s residential (LT domestic) tariff is set each year by the Karnataka Electricity Regulatory Commission (KERC), with a lower rate for the first block of units and a higher rate above it, plus fixed charges and periodic fuel adjustment charges. Solar offsets your highest-priced units first, so medium to heavy users benefit most. Check the current per-unit rate on your BESCOM bill before calculating savings.
A 3 to 4 BHK Bengaluru apartment with 1 to 2 ACs and a water heater typically consumes 250 to 500 kWh/month, so most of its units fall in the higher-rate block.
Bengaluru’s climate is also unusually stable for solar generation. Unlike coastal cities with heavy monsoons or North Indian cities with foggy winters, Bengaluru’s weather is moderate year-round. The monsoon (June–September) reduces output, but Bengaluru’s low annual rainfall compared to Chennai or Kochi means generation dips less severely.
Solar Cost by System Size in Bengaluru: Detailed Breakdown
For the full size-by-size companion with per-size price tables, savings math, and the Gruha Jyothi interplay at each size, read our solar cost Bengaluru 3kW, 5kW, 10kW guide. The table below uses typical Bengaluru market prices for 2026. Mono PERC Tier-1 panels and BIS-certified grid-tie inverters are assumed throughout.
| System Size | Gross Cost (before subsidy) | PM Suryaghar Subsidy | Net Cost (post-subsidy) | Monthly Generation | Best For |
|---|---|---|---|---|---|
| 3 kW | ₹2,03,000–₹2,33,000 | ₹78,000 | ₹1,25,000–₹1,55,000 | 325 to 375 kWh | 2 to 3 BHK, bill ₹2,000–₹4,500 |
| 5 kW | ₹2,63,000–₹3,03,000 | ₹78,000 | ₹1,85,000–₹2,25,000 | 540 to 625 kWh | 3 to 4 BHK with 1 to 2 ACs, bill ₹4,500–₹8,000 |
| 10 kW | ₹4,08,000–₹4,93,000 | ₹78,000 | ₹3,30,000–₹4,15,000 | 1,085 to 1,250 kWh | Large homes, small offices, clinics |
Source: subsidy of ₹78,000 per MNRE PM Surya Ghar operational guidelines (₹30,000 per kW for the first 2 kW, ₹18,000 for the third kW). Gross and net cost ranges are the typical Bengaluru market prices stated in this article, not a MNRE benchmark; net cost is gross minus ₹78,000.
Why Bengaluru costs slightly more than some other cities: Bengaluru has higher real estate and labour costs than tier-2 cities. Installation in apartment complexes with restricted terrace access, high-rises, or Bengaluru’s hilly terrain may add 5 to 8% to labour costs.
BESCOM net metering charges: BESCOM’s application fee and the bidirectional meter are separate from the vendor quote unless the vendor includes them. Ask for them to be listed.
💡 Fast tip
Bengaluru's many apartment complexes require Apartment Owners Association (AOA) approval before terrace solar installation. Get written approval from your AOA before signing with any vendor, approval takes 2 to 8 weeks and can delay your entire project if left for later.
The BESCOM Net Metering and PM Suryaghar Process
BESCOM is Karnataka’s largest DISCOM. The process for Bengaluru homeowners:
For a deeper look at the full BESCOM application pathway, see our PM Suryaghar BESCOM guide, and the suryaghar document checklist to prepare all documents in advance.
⚠️ Watch out
Confirm your DISCOM and account number from your electricity bill before applying. Selecting the wrong DISCOM or account on the portal sends your application to the wrong office and delays it.
The Bengaluru Apartment Solar Readiness Checklist
The Bengaluru Apartment Solar Readiness Checklist is Heaven Green Energy’s proprietary tool for assessing whether a Bengaluru apartment complex is ready for rooftop solar, the single biggest challenge unique to this city.
Checklist items (each must be confirmed before vendor engagement):
Bengaluru Solar: Pros and Cons for Homeowners
- Higher-slab BESCOM tariffs mean high savings per solar kWh
- Stable year-round climate with 5.2 to 5.6 peak sun hours
- PM Suryaghar ₹78,000 subsidy reduces initial investment
- BESCOM's net metering process is streamlined compared to many DISCOMs
- Strong local installer market with many registered PM Suryaghar vendors
- Apartment AOA approvals add 2 to 8 weeks to project timelines
- Dense apartment layouts cause significant shading challenges
- Monsoon (June–September) reduces output; budget for 20 to 25% lower generation those months
- Installation labour costs 5 to 8% higher than smaller cities
Ready to check your Bengaluru solar potential? Use our free solar calculator, enter your BESCOM bill amount and get subsidy + savings in 60 seconds.
Common Mistakes Bengaluru Solar Buyers Make
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1
Not checking the DISCOM and account details on your bill, selecting the wrong DISCOM or account number on the portal sends your application to the wrong office and resets your timeline.
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2
Over-sizing the system relative to actual consumption, a Bengaluru apartment consuming 300 kWh/month should install a 3 kW system, not a 5 kW. Surplus exports are typically paid at a [feed-in tariff](/glossary/feed-in-tariff) that is lower than the import tariff, reducing your effective ROI.
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3
Choosing vendors without experience in apartment installations, terrace solar in multi-storey buildings requires knowledge of common area electrical routing, lift room bypass, and AOA documentation. Not all vendors handle this well.
How Heaven Green Energy Helps Bengaluru Homeowners
Heaven Green Energy brings 10,000+ installations of experience to every Bengaluru project. Our team understands BESCOM’s net metering process deeply and has experience with apartment-specific solar installations including AOA coordination and common-area electrical routing.
- Residential Solar: end-to-end PM Suryaghar subsidy processing, BIS-certified equipment, and 25-year support.
- Commercial Solar: for Bengaluru offices and commercial buildings in BESCOM area.
- Solar Calculator: calculate your personalised BESCOM savings estimate.
- Contact Us: site visit within 24 hours, proposal within 48 hours.
Our MNRE empanelment covers Karnataka, so your subsidy application is processed through the correct channel from day one.
Frequently Asked Questions
How much does a 5 kW solar system cost in Bengaluru in 2026?
A 5 kW solar system in Bengaluru costs ₹1,85,000–₹2,25,000 after the PM Suryaghar subsidy of ₹78,000. Gross system cost before subsidy is ₹2,63,000–₹3,03,000 for BIS-certified Tier-1 mono PERC panels and a quality string inverter. Depending on your BESCOM tariff slab, annual savings are roughly ₹35,000–₹50,000.
Does BESCOM allow net metering for apartments?
Yes, BESCOM allows net metering for individual metered connections in apartments. Each flat with its own BESCOM meter can install a rooftop solar system (sized to its own load) and register for net metering, provided the AOA approves terrace access and there’s a clear wiring path to the individual flat’s meter. Society-level systems are also possible for common-area consumption.
What is the PM Suryaghar subsidy for Bengaluru?
The PM Suryaghar subsidy is the same nationally: ₹30,000 for 1 kW, ₹60,000 for 2 kW, and ₹78,000 for 3 kW and above. Ask BESCOM whether any state support applies to you, since the national scheme is the main residential subsidy. After BESCOM inspects and approves the installation, the subsidy is processed within 15 days and paid to your bank account by Direct Benefit Transfer (DBT).
How long does the BESCOM net metering approval take?
Feasibility approval and, after installation, inspection and meter change each usually take a few weeks. Once BESCOM approves the installation, the subsidy is processed within 15 days. Total timeline is typically 2 to 3 months with complete documentation. Delays occur most often due to missing equipment certificates or incomplete vendor paperwork.
Can I install solar without AOA approval in a Bengaluru apartment?
Installing without AOA approval is not recommended. While you technically own your terrace rights in some configurations, the building’s common electrical infrastructure, wiring paths, and structural access all require AOA coordination. An unauthorised installation may face removal requests and can complicate future building maintenance. Get written AOA approval first.
Is Bengaluru’s climate consistent enough for solar all year round?
Bengaluru’s climate is one of India’s most stable for solar, no extreme winter fog (unlike North India), no heavy coastal monsoon (unlike Chennai or Kochi), and moderate temperatures year-round. The June–October monsoon period reduces generation by 20 to 30%, but average annual yield remains 1,300 to 1,500 kWh per kWp installed, comparable to Delhi and better than Mumbai.
What is the Karnataka Renewable Energy Policy’s impact on Bengaluru solar?
Karnataka’s Renewable Energy Policy 2022 to 2027 (published by KREDL) supports rooftop solar growth in the state, while the actual connection rules, capacity limits and metering arrangements for BESCOM consumers are set by KERC regulations. Check the current KERC rooftop rules with BESCOM or your installer before sizing a system.