5kW Solar System Price in India With Subsidy: Full Cost
The 5kW solar system price in India with subsidy lands between ₹1.72 lakh and ₹2.72 lakh net, because the gross cost of ₹2.5 lakh to ₹3.5 lakh is reduced by a PM Surya Ghar subsidy that is capped at ₹78,000 and does not grow past 3kW. That cap is the entire story. Most buyers assume the ₹30,000-per-kW headline rate multiplies across all five kilowatts and budget for ₹1.5 lakh of government support. It does not, and they do not get it.
At a glance
Item | Figure | Note |
|---|---|---|
Gross cost, on-grid 5kW | ₹2,50,000 to ₹3,50,000 | ₹50,000 to ₹70,000 per kW |
Central subsidy received | ₹78,000 | Flat. Same as a 3kW system |
Net cost (rest of India) | ₹1,72,000 to ₹2,72,000 | Expected Price |
Net cost (Uttar Pradesh) | ₹1,42,000 to ₹2,42,000 | State top-up adds ₹30,000 |
Subsidy as % of spend | 22% to 31% | A 3kW system recovers 39% to 47% |
Daily generation | 18 to 22 units | Location dependent |
Roof area needed | 400 to 500 sq ft | Shadow-free |
Simple payback | 3.5 to 5 years | At ₹7 to ₹8 per unit |
GST on panels | 5% | Cut from 12% on 22 September 2025 |
What the 5kW solar system price in India with subsidy actually covers
The gross figure is not one product. It is roughly five cost blocks, and only the first has fallen meaningfully in price over the past two years.
Cost block | Share of a 5kW quote | Indicative amount |
|---|---|---|
Modules (Mono PERC or TOPCon) | 40% to 45% | ₹1,10,000 to ₹1,50,000 |
Grid-tied inverter | 15% to 18% | ₹42,000 to ₹58,000 |
Mounting structure | 10% to 12% | ₹28,000 to ₹40,000 |
Cables, ACDB/DCDB, earthing, LA | 12% to 15% | ₹34,000 to ₹50,000 |
Installation, commissioning, liaison | 12% to 18% | ₹34,000 to ₹60,000 |
The spread between ₹50,000 and ₹70,000 per kW is not usually explained by panel brand. It is explained by structure height, cable run length, whether the quote includes the net meter and DISCOM liaison, and whether the installer is absorbing the subsidy paperwork or leaving it to you.
The subsidy cap: why kilowatt four and five are unsubsidised
Under PM Surya Ghar Muft Bijli Yojana the central slabs are ₹30,000 for the first kilowatt, ₹30,000 for the second, ₹18,000 for the third, and nothing beyond that. The scheme ceiling is ₹78,000.
Run that across sizes and the effective per-kW subsidy collapses:
System size | Subsidy | Subsidy per kW | Gross cost | Net cost | Net per kW |
|---|---|---|---|---|---|
1kW | ₹30,000 | ₹30,000 | ₹65,000 | ₹35,000 | ₹35,000 |
2kW | ₹60,000 | ₹30,000 | ₹1,30,000 | ₹70,000 | ₹35,000 |
3kW | ₹78,000 | ₹26,000 | ₹1,90,000 | ₹1,12,000 | ₹37,333 |
4kW | ₹78,000 | ₹19,500 | ₹2,45,000 | ₹1,67,000 | ₹41,750 |
5kW | ₹78,000 | ₹15,600 | ₹3,00,000 | ₹2,22,000 | ₹44,400 |
Read the last column. Going from 3kW to 5kW costs you ₹1,10,000 of additional net outlay for 2kW of additional capacity, which is ₹55,000 per marginal kilowatt against ₹37,333 for the subsidised block. The extra capacity is 47% more expensive per kilowatt than the capacity you already bought.
This is not an argument against 5kW. It is an argument that 5kW must be justified on consumption, not on subsidy. See our 3kW cliff explainer for where the break normally falls.
Is 5kW worth it despite the cap
Yes, if your consumption genuinely supports it. A 5kW system produces roughly 600 units a month. If you consume 600 or more units a month and your DISCOM tariff slab is above ₹7 per unit, the unsubsidised marginal kilowatts still pay back in under six years, which is well inside a 25-year panel life.
No, if you are sizing for a future you have not committed to. A common pattern is a household consuming 350 units installing 5kW "for the EV we will buy." Net metering in most states credits export at a rate below the retail slab you avoid, so surplus export earns less than self-consumption saves. Oversizing converts high-value savings into low-value credits.
Monthly consumption | Sensible size | Reason |
|---|---|---|
Under 250 units | 2kW | Full subsidy, fastest payback |
250 to 400 units | 3kW | Maximum subsidy, best net per kW |
400 to 600 units | 4kW | Marginal kW justified by self-use |
600 units and above | 5kW | Marginal kW fully self-consumed |
Above 800 units with load sanction | 6kW to 10kW | Check sanctioned load first |
GST on solar: the number most price pages still get wrong
On 22 September 2025 the GST rate on renewable energy devices fell from 12% to 5%, following the 56th GST Council meeting held on 3 September 2025 (PIB Release ID 2167486, dated 17 September 2025). A large number of solar price pages still quote 12% on modules and compute blended EPC rates of around 14%. Those pages are a year out of date.
What it means for you practically: a quote issued before 22 September 2025 and a quote issued today are not comparable on the tax line. If an installer is still charging you 12% on modules, ask for the HSN-wise tax break-up. Our solar panel GST rate guide has the component-wise position.
Note that sources conflict here. Several industry blogs continue to publish 12% on modules and 18% on inverters. The PIB release is the primary source and supersedes them, but a solar-specific inverter supplied as part of a qualifying system and a standalone inverter are treated differently, so the blended rate on your invoice will not be a clean 5%.
Honest downsides of a 5kW system
- Subsidy ratio is poor. 22% to 31% of spend, against 39% to 47% for 3kW.
- Roof area is real. 400 to 500 sq ft shadow-free. Water tanks, stair mumty and parapet shadow routinely kill 15% of usable area that the site survey photo did not show.
- Sanctioned load ceiling. Most DISCOMs will not sanction rooftop capacity above your sanctioned load. A 5kW system on a 3kW connection needs a load enhancement first, which carries its own fee and timeline.
- Export is worth less than self-use. Surplus credited at the DISCOM's rate, not your top slab.
- Subsidy is not instant. Disbursement runs 30 to 45 days in strong DISCOM regions and 75 to 120 days in weaker ones. You pay the full amount upfront either way.
Who this suits
Strong fit: Households consuming 600 or more units monthly, with 500 sq ft of clear roof, a sanctioned load of 5kW or above, and the cash to fund the full gross cost for three months.
Marginal fit: Households at 450 to 600 units, or those with 5kW of roof but a 3kW sanctioned load who are willing to pay for load enhancement.
Not a fit: Consumption under 400 units (buy 3kW and take the better subsidy ratio), tenants, buildings without a clear single-owner roof, and anyone sizing for hypothetical future load.
The bottom line
The 5kW solar system price in India with subsidy nets out at ₹1.72 lakh to ₹2.72 lakh, and ₹1.42 lakh to ₹2.42 lakh in Uttar Pradesh where a state top-up applies. Judge the system on whether you consume 600 units a month, not on the subsidy headline, because the subsidy is the same ₹78,000 you would get on a 3kW system. If your consumption supports it, the unsubsidised kilowatts still pay back inside six years. If it does not, 3kW is the better financial decision and it is not close.
Frequently asked questions
How much is the 5kW solar system price in India with subsidy in 2026?
Gross cost is ₹2.5 lakh to ₹3.5 lakh and the central subsidy is ₹78,000, giving a net of ₹1.72 lakh to ₹2.72 lakh. In Uttar Pradesh an additional state top-up of ₹30,000 applies, bringing the net to ₹1.42 lakh to ₹2.42 lakh.
Why is the subsidy only ₹78,000 on a 5kW system?
PM Surya Ghar caps central financial assistance at ₹78,000 for any system of 3kW or above. The fourth and fifth kilowatts receive nothing. The cap is on the scheme, not on your system size.
How many units does a 5kW solar system generate per day?
Around 18 to 22 units a day, or roughly 600 units a month, depending on irradiance, tilt, soiling and inverter efficiency. Northern plains cities sit at the lower end in December and January.
What roof area do I need for 5kW?
400 to 500 sq ft of shadow-free area. Higher-efficiency TOPCon modules reduce this toward the lower end.
Is 5kW better than two separate 3kW connections?
Two connections on two separate service numbers can each claim ₹78,000, but the DISCOM will check whether the second connection is genuine and separately metered. Splitting a single household connection to double-claim is not permitted and is a common reason claims get rejected at inspection.
What is the payback period on a 5kW system?
Three and a half to five years at a tariff of ₹7 to ₹8 per unit with high self-consumption. Payback stretches toward seven years if most output is exported rather than consumed.
Does the subsidy apply to off-grid or hybrid 5kW systems?
Off-grid systems are not eligible at all. Hybrid systems are eligible for the subsidy on the solar portion only, provided they are grid-connected with net metering. Battery cost is never subsidised.
How long does the ₹78,000 actually take to reach my account?
Thirty to forty-five days after commissioning in strong DISCOM regions, and 75 to 120 days in slower ones. The money moves by DBT to the bank account linked to your application, and the most common delay is an Aadhaar-to-bank name mismatch.
.jpeg)
.jpeg)
.jpeg)
.jpeg)
.jpeg)
.jpeg)
