3 kW Solar Panel Price in Delhi With Subsidy (2025 ROI Guide)

A 3 kW solar system is one of the most popular choices for homes in Delhi, offering a strong balance between cost and electricity savings. In 2025, a 3 kW rooftop solar plant can significantly cut your DISCOM bills while taking advantage of central subsidies and net metering policies.
This guide explains the approximate 3 kW solar price in Delhi, how much subsidy you can expect, and how quickly the system can pay for itself through monthly savings. All numbers are indicative and can vary by brand, installer, and final site conditions.
Note:
Arkahub isn't in Delhi just yet, but it's very much on our roadmap and something we're actively working towards. This guide is designed to help Delhi homeowners understand solar costs and ROI.
3 kW Solar Panel Price in Delhi (2025 – Approximate)
For a standard on-grid 3 kW residential system in Delhi (panels + inverter + structure + basic installation), typical price bands in 2025 are:
💰Pre-subsidy price (approx.)
₹1,60,000 – ₹2,10,000
Variation depends on:
- •Monocrystalline vs polycrystalline panels
- •Inverter type (string / hybrid)
- •Mounting structure quality and roof complexity
These ranges assume good-quality Tier-1 panels and BIS-compliant inverters suitable for Delhi's climate and DISCOM norms.
Central Subsidy Structure for 3 kW Rooftop in 2025 (Indicative)
Subsidies for residential rooftop solar are primarily driven by central schemes (through MNRE) and implemented via registered vendors and the national or state portal. The exact slab rates can change, but typical patterns seen recently include:
- ⚡Subsidy offered per kW up to a certain system size (for example, higher rate for first 2 kW and a lower rate for additional capacity).
- 📋A 3 kW system often falls in the "small rooftop" band that receives the full eligible slab benefit, subject to scheme limits and documentation.
- 💳Subsidy is usually disbursed after installation and inspection, either directly to the customer's account or adjusted in the final invoice.
Because subsidy rules are updated periodically, homeowners should always check the current central scheme and national portal at the time of enquiry.
Effective 3 kW Solar Price in Delhi After Subsidy (2025)
Using indicative numbers, a rough example for a 3 kW residential system in Delhi could look like:
System cost (before subsidy)
Say ~₹1,80,000
Approx. central subsidy impact
Can commonly reduce the effective cost by tens of thousands of rupees, depending on the per-kW rate and cap for 3 kW systems.
Indicative effective cost after subsidy
Often ends up closer to the ₹1,20,000 – ₹1,40,000 band for many homeowners, assuming they qualify and complete all formalities correctly.
These figures are only directional; actual amounts depend on the current scheme notification, sanctioned capacity, and empanelled vendor pricing.
Monthly Savings & 2025 ROI Guide for 3 kW in Delhi
A well-designed 3 kW rooftop solar system in Delhi can generate roughly 330–420 units per month on average over the year, depending on shading, tilt, and panel quality.
Typical Monthly Impact
- ⚡If your grid tariff is around ₹7–₹9 per unit (all-inclusive slabs), your 3 kW system can offset a sizable portion of your bill.
- 💰Monthly savings often fall in the ₹2,300 – ₹3,500 range for households that can fully utilise or export most of the generated energy via net metering.
Payback / ROI (Illustrative)
- Effective cost after subsidy (example): ~₹1.3 lakh
- Average annual savings: say ₹28,000 – ₹36,000
- Simple payback period: around 3.5 – 5 years
Payback depends on:
- • Your actual tariff slabs
- • Daytime usage vs export
- • Any future tariff hikes
After the payback period, the major part of your solar generation effectively becomes "free power" for the remaining life of the system (panels often warrantied for 20–25 years).
Key Factors That Change Your Final Cost & ROI
When planning a 3 kW solar system in Delhi, these elements can significantly shift price and returns:
- 🔆Type of system: On-grid (most common) vs hybrid (with battery backup).
- 🏠Roof type & structure: Flat RCC vs sloped/tin; need for elevated structures or extra civil work.
- ☀️Shading & orientation: True-south orientation, proper tilt, and minimal shading improve generation and shrink payback.
- 📋DISCOM & net metering rules: Sanctioned load, net-metering caps, and application timelines.
- ⭐Quality of components: Higher-efficiency monocrystalline panels and branded inverters may cost more but usually improve output and reliability.
Why Consider Arkahub for a 3 kW System in Delhi?
- 🏠End-to-end assistance: Site survey, system design, documentation, and commissioning.
- 📋Subsidy and net metering help: Guidance through portal registration and paperwork so you don't miss out on eligible benefits.
- ⭐Quality components: High-efficiency panels, trusted inverters, and durable structures suited for Delhi's weather.
- 💰Transparent pricing: Clear break-up of material, labour, and any optional extras like batteries.
- 🔧After-sales support: Periodic maintenance, performance checks, and service visits to protect your ROI.
While Arkahub is not yet operational in Delhi, we're actively expanding. Sign up for updates to be notified when we launch in your area!
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FAQs – 3 kW Solar Price & Subsidy in Delhi
Common questions about 3 kW solar systems and subsidies in Delhi.
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