3kW Solar System Price in India (2026)

A 3kW solar system is the most popular choice for Indian homes — perfect for 2–3 BHK households with 1 AC, refrigerator, washing machine, lights and fans. With the PM Surya Ghar ₹78,000 subsidy, it is the most affordable clean energy investment available in India today.

Panel QualityGross Price (₹)PM Subsidy (₹)Net Price (₹)
Standard (Polycrystalline)₹1,75,000−₹78,000₹97,000
High Efficiency (Mono PERC) ⭐ Most Popular₹2,10,000−₹78,000₹1,32,000
Premium (Bifacial / TopCon)₹2,35,000−₹78,000₹1,57,000

* Prices are indicative for 2026. Actual cost varies by state, installer, and roof type. Subsidy subject to PM Surya Ghar eligibility.

Interactive 3kW Calculator

kW
Total Cost (Approx):₹2,10,000
PM Surya Ghar Subsidy:₹78,000
Your Net Investment:₹1,32,000*
Estimated EMI (5yr loan):₹0

*Prices may vary by state and installer.

Daily Generation
12–15
Units / Day
Monthly Savings
₹3,240
@ ₹9/unit
⚡ 3kW powers:
  • 1 × 1.5 Ton Air Conditioner
  • Refrigerator + Washing Machine
  • LED lights and fans (full 3BHK)
  • TV, laptops, phone chargers
  • Water pump (0.5HP)

Why 3kW is India’s Most Popular Solar Size

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Maximum Subsidy

At 3kW, you receive the maximum ₹78,000 PM Surya Ghar subsidy. Bigger systems don’t get more — making 3kW the best subsidy-per-rupee.

🏠

Perfect for 2–3 BHK

Covers 80–100% of a standard Indian household’s electricity — 1 AC, fridge, washer, lights and fans running comfortably.

📈

3–4 Year Payback

Monthly savings of ₹3,000–4,500 means you recover your investment in just 3–4 years then 20+ years of free electricity.

🏗️

Easy Roof Fit

Needs only 200–250 sq ft of shadow-free roof. Most 2BHK terraces accommodate this. Just 8–10 panels.

3kW System Specifications

No. of Solar Panels8–10 panels (300–400W each)
Roof Area Required200–250 sq ft (shadow-free)
Daily Units Generated12–15 units/day
Annual Generation4,380–5,475 units/year
Inverter Required3kVA string or hybrid inverter
Panel Warranty25 years performance, 10 years product
CO₂ Saved / Year~4,200 kg/year

Frequently Asked Questions — 3kW Solar System

Is ₹78,000 the maximum subsidy for a 3kW system?
Yes. PM Surya Ghar gives ₹30,000 for 1kW, ₹60,000 for 2kW, and ₹78,000 for 3kW and above. A 4kW or 5kW system still only gets ₹78,000 — so 3kW gives the best subsidy-to-cost ratio.
Can I get a 3kW system on loan or EMI?
Yes. Most banks offer solar loans at 7–12% interest. On a ₹1.32 lakh net investment (after subsidy), a 5-year loan at 9% costs about ₹2,750/month EMI. Use our Solar Loan EMI Calculator.
How long does 3kW installation take?
Physical installation takes 1–2 days. DISCOM net metering approval takes 30–45 days. Your installer handles all paperwork.
Does a 3kW system work during power cuts?
Standard on-grid systems shut off during power cuts for safety. For backup power, you need a hybrid inverter + battery (add ₹30,000–60,000). Optional — net metering is sufficient for most homeowners.
Which brands are best for 3kW systems?
Top panel brands: Tata Solar, Adani Solar, Vikram Solar, Waaree, Luminous. Top inverter brands: Growatt, Solis, Delta, SMA, Goodwe. All BIS-certified with 25-year warranties.
What is the carbon saving from a 3kW system?
A 3kW solar system saves approximately 4,200 kg of CO₂ per year — equivalent to planting 200 trees annually. Over 25 years, that is over 100 tonnes of CO₂ avoided.

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