5kW Solar System Price in India 2026 — Cost, Subsidy, Savings & Payback
Introduction
A 5kW rooftop solar system is the size most Delhi NCR families land on once they add up an air conditioner or two, a refrigerator, a water pump and everyday lighting. It is big enough to wipe out a ₹5,000–₹7,000 monthly electricity bill, and small enough to fit on the terrace of a typical independent house.
But “5kW solar price” is one of the most confusing searches in India right now, because quotes range from ₹2.75 lakh to well over ₹5 lakh. The gap is real, and it comes down to panel technology, mounting structure, inverter brand and whether a battery is included. This guide breaks the number down honestly, applies the 2026 subsidies correctly, and shows what your actual out-of-pocket cost and payback look like in Delhi and Gurgaon.
5kW Solar System Price in India (2026)
For a standard on-grid (grid-tied) 5kW system with ALMM-listed panels and a reputable string inverter, the installed price in 2026 typically falls in this band:
| System Type | Price Range (before subsidy) | What You Get |
|---|---|---|
| On-grid (no battery) | ₹3,10,000 – ₹3,60,000 | Panels, inverter, structure, net meter. No backup during a power cut. |
| Hybrid (with 5 kWh battery) | ₹4,20,000 – ₹5,20,000 | Everything above plus battery backup for essential loads. |
| Off-grid (battery-only) | ₹4,60,000 – ₹5,80,000 | Fully independent of the grid. Not eligible for net metering. |
That works out to roughly ₹62–₹72 per watt for on-grid systems at this size. Prices below ₹55 per watt almost always mean either non-ALMM panels, a light-gauge mounting structure that will not survive a Delhi summer storm, or a quote that excludes net metering and DISCOM liaison work.
Important: only on-grid and hybrid systems installed through a vendor registered on the PM Surya Ghar national portal, using ALMM-listed DCR modules, qualify for the central subsidy. Off-grid systems do not.
Subsidy on a 5kW System — What You Actually Get
This is where most homeowners are misled. The PM Surya Ghar central subsidy is capped at 3kW — it does not scale up with system size. A 5kW system receives exactly the same ₹78,000 that a 3kW system receives.
| Capacity | Central Subsidy (CFA) | How It Is Calculated |
|---|---|---|
| 1 kW | ₹30,000 | ₹30,000 per kW for the first 2 kW |
| 2 kW | ₹60,000 | ₹30,000 × 2 |
| 3 kW | ₹78,000 | ₹60,000 + ₹18,000 for the third kW |
| 5 kW | ₹78,000 | Capped — no additional CFA beyond 3 kW |
| 10 kW | ₹78,000 | Capped — same as above |
So the honest way to think about it: your first 3kW is heavily subsidised, and every kilowatt after that you pay for in full. That does not make 5kW a bad decision — it simply means the extra 2kW has to justify itself on generation and savings, not on subsidy.
Delhi State Subsidy and Generation Based Incentive
Delhi residents get a second layer on top. Under the Delhi Solar Policy, the state pays a capital subsidy of ₹10,000 per kW up to a maximum of ₹30,000, and a Generation Based Incentive (GBI) credited monthly through your electricity bill for five years from the date of commissioning.
| Benefit | Rate | Applies To a 5kW System? |
|---|---|---|
| Central CFA | ₹78,000 (capped at 3 kW) | Yes — ₹78,000 |
| Delhi capital subsidy | ₹10,000/kW, max ₹30,000 | Yes — ₹30,000 |
| Delhi GBI (up to 3 kW) | ₹3.00 per unit generated | No |
| Delhi GBI (3–10 kW) | ₹2.00 per unit generated | Yes |
Stacked together, a Delhi household installing 5kW brings the up-front cost down by ₹1,08,000. The GBI then keeps paying out for five years on top of the bill savings, which is what makes Delhi one of the fastest-payback rooftop solar markets in the country.
Gurgaon, Faridabad, Noida and Ghaziabad do not get Delhi’s state subsidy or GBI. Haryana and Uttar Pradesh run their own schemes with different rules — check your state before assuming the ₹1,08,000 figure applies to you.
Component-Wise Cost Breakdown
Here is where the money in a ₹3.35 lakh 5kW quote actually goes. Ask any installer for this breakup — a vendor who will not give it is usually hiding something in the structure or the inverter.
| Component | Typical Cost | Notes |
|---|---|---|
| Solar modules (9–10 panels) | ₹1,30,000 – ₹1,65,000 | 540–590 Wp ALMM-listed DCR panels |
| Grid-tie inverter (5 kW) | ₹40,000 – ₹65,000 | Biggest quality variable in the whole system |
| Mounting structure | ₹35,000 – ₹60,000 | Cost rises sharply for elevated / high-rise structures |
| DC & AC cabling, connectors | ₹18,000 – ₹28,000 | Cheap cable is a real fire risk — do not economise here |
| ACDB, DCDB, earthing, LA | ₹15,000 – ₹24,000 | Mandatory safety and protection equipment |
| Installation & commissioning | ₹25,000 – ₹42,000 | Labour, crane/hoist, testing |
| Net meter & DISCOM liaison | ₹8,000 – ₹16,000 | Application, inspection follow-up, meter charges |
On GST: the rate on solar panels and solar power generating systems was reduced from 12% to 5% with effect from 22 September 2025. How that flows into a full installation contract depends on whether your installer bills it as a composite supply of goods or as a works contract, so ask for the GST split to be shown clearly on the quotation.
How Much Electricity Does a 5kW System Generate?
In Delhi NCR, a well-installed, shadow-free 5kW system generates roughly 4 units per kW per day averaged across the year — more in March to May, noticeably less through the December–January fog and the monsoon weeks.
| Period | Typical Generation | Notes |
|---|---|---|
| Per day (annual average) | 18 – 21 units | Peaks near 26–28 units on clear April days |
| Per month | 550 – 630 units | Drops to around 380–450 units in December–January |
| Per year | 7,000 – 7,600 units | Assuming panels are cleaned regularly |
Dust and winter smog matter more in NCR than almost anywhere else in India. An uncleaned array in Delhi can lose 10–18% of its output by the end of a dry spell, which is the single cheapest performance loss to fix.
Payback Period and ROI
Payback depends far more on your electricity tariff than on your city’s sunshine. A Delhi household in the 400+ unit slab is paying roughly ₹9–₹11 per unit all-in once PPAC and electricity tax are added, while a Gurgaon household on the DHBVN domestic tariff may be paying closer to ₹6.50.
| Scenario | Net Cost After Subsidy | Annual Savings | Simple Payback |
|---|---|---|---|
| Delhi (₹9/unit, both subsidies) | ≈ ₹2,27,000 | ₹63,000 – ₹68,000 | 3.5 – 4 years |
| Gurgaon (₹6.50/unit, central only) | ≈ ₹2,57,000 | ₹45,000 – ₹49,000 | 5 – 5.5 years |
| Noida (₹6.50/unit, central + UP state) | ≈ ₹2,27,000 | ₹45,000 – ₹49,000 | 4.5 – 5 years |
Add Delhi’s GBI at ₹2 per unit and a Delhi 5kW owner receives roughly ₹14,000–₹15,000 a year for five years on top of the bill savings, pulling real payback closer to three years. Against a 25-year panel performance warranty, that leaves two decades of effectively free electricity.
Is 5kW the Right Size for Your Home?
Size the system to your consumption, not to your roof. The rule of thumb in NCR: every 1kW installed produces about 120 units a month, so divide your average monthly consumption by 120.
- Monthly bill of ₹4,000–₹7,000 and consumption of 500–700 units — 5kW is usually the right call.
- Two or more air conditioners running through the summer — 5kW is the practical minimum.
- Consumption under 350 units a month — a 3kW system will give you a better return, because you capture the full subsidy on a smaller investment.
- You want backup during power cuts — budget for a hybrid system, not a bigger on-grid one.
Roof Space, Sanctioned Load and Net Metering Limits
Two constraints decide whether 5kW is even permitted at your address, and both are checked before installation, not after.
- Roof area: allow roughly 100 sq ft of completely shadow-free roof per kW — so about 450–500 sq ft for 5kW. Elevated structures can recover space above a water tank or parking area, at extra cost.
- Sanctioned load: across Delhi, Haryana and UP, net-metered capacity generally cannot exceed 100% of your sanctioned load. If your connection is sanctioned at 3kW, you must apply for a load enhancement before a 5kW system can be net-metered.
- Connection type: a 5kW system will usually require a three-phase connection. Single-phase connections are typically limited to around 5kW, so this is worth confirming with your DISCOM early.
- Settlement: Delhi, Haryana and UP all run an April–March net metering settlement year, so your export credits reset annually.
5kW Solar Price in Delhi and Gurgaon
The hardware cost is much the same across NCR. What changes is the subsidy stack and the tariff you are saving against.
| City | Gross Cost | Subsidies Available | Net Cost |
|---|---|---|---|
| Delhi | ₹3,10,000 – ₹3,60,000 | ₹78,000 central + ₹30,000 state + GBI | ≈ ₹2,27,000 |
| Gurgaon / Faridabad | ₹3,10,000 – ₹3,60,000 | ₹78,000 central (state scheme is income-tested) | ≈ ₹2,57,000 |
| Noida / Ghaziabad | ₹3,10,000 – ₹3,60,000 | ₹78,000 central + UP state top-up | ≈ ₹2,27,000 |
Haryana runs an income-tested Solar Energy Promotion Scheme that adds a state contribution for families below a specified annual income and sanctioned load, and Uttar Pradesh offers a state top-up through UPNEDA. Both are worth checking on the official state portals before you finalise a quote, as the terms are revised periodically.
Conclusion
A 5kW rooftop solar system in India costs ₹3.10–₹3.60 lakh before subsidy in 2026, and lands near ₹2.27 lakh net for a Delhi household once the ₹78,000 central subsidy and ₹30,000 Delhi state subsidy are applied. It generates roughly 7,000–7,600 units a year, saves ₹45,000–₹68,000 depending on your tariff, and pays for itself in three and a half to five and a half years.
The single most important decision is not the price — it is the quality of the inverter and mounting structure, because those determine whether you are still generating 7,000 units a year in 2041. Get the component breakup in writing, insist on ALMM-listed panels, and confirm your sanctioned load before you sign.
Get a Free Quote from Solar Squad
Ready to go solar? Solar Squad designs, installs and commissions rooftop solar systems across Delhi and Gurgaon, and handles the PM Surya Ghar application and net metering paperwork end to end. Contact us today for a customised 5kW solar quote for your home, with a full component-wise breakup and a realistic payback estimate based on your actual electricity bill.
Official Sources and Further Reading
Subsidy amounts, tariffs and net metering rules are revised from time to time. These are the primary sources this guide is based on — always confirm current figures on the official portal before you sign a contract.
- PM Surya Ghar Muft Bijli Yojana — official national portal
- MNRE guidelines for residential Central Financial Assistance (PDF)
- Delhi Solar Portal — state subsidy and Generation Based Incentive rates
- MNRE — Approved List of Models and Manufacturers (ALMM)
FAQs
What is the price of a 5kW solar system in India in 2026?
An on-grid 5kW system typically costs ₹3.10–₹3.60 lakh before subsidy, which is roughly ₹62–₹72 per watt. Hybrid systems with a 5 kWh battery run ₹4.20–₹5.20 lakh.
How much subsidy is available on a 5kW solar system?
The PM Surya Ghar central subsidy is capped at ₹78,000 regardless of system size above 3kW. Delhi residents can add a state capital subsidy of up to ₹30,000, bringing the total to ₹1,08,000.
How many units does a 5kW solar system generate per day?
In Delhi NCR, expect 18–21 units per day averaged over the year, peaking around 26–28 units on clear days in April and dropping to 13–15 units during December fog.
How much roof space does a 5kW solar system need?
Around 450–500 sq ft of shadow-free roof area, or roughly 100 sq ft per kW. Elevated mounting structures can reclaim space over water tanks and parking areas.
Can I install 5kW if my sanctioned load is 3kW?
Not for net metering. Net-metered capacity is generally limited to 100% of your sanctioned load, so you would need to apply to your DISCOM for a load enhancement first.
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