5 kW Solar System Price in India 2026 (After Subsidy)

Thinking of a 5 kW rooftop system for your home? It is one of the most popular sizes for Indian families with a decent-sized bill and enough shade-free roof. Here is the honest picture on price, subsidy, units, savings and payback — with every figure dated and hedged, because real prices change by brand, panel type and city.

All rupee figures below are indicative for 2026 — please verify current prices with local installers before you decide.

5 kW solar price in India: before and after subsidy

At a typical installed cost of about ₹55,000–₹75,000 per kW (indicative 2026 — verify current), a 5 kW system lands in this range:

Where you land depends on the panel type (DCR Mono PERC, TOPCon, bifacial), the inverter brand, roof structure and your city. A simple flat rooftop in Ahmedabad may cost less than a tricky multi-level roof in Pune that needs extra mounting.

Why the subsidy stops at ₹78,000

The scheme is PM Surya Ghar: Muft Bijli Yojana, the residential rooftop subsidy. The central financial assistance is ₹30,000 per kW for the first 2 kW, plus ₹18,000 for the 3rd kW — and it is capped at ₹78,000 total.

• 1 kW → ₹30,000
• 2 kW → ₹60,000
• 3 kW or more → ₹78,000 (maximum)

So a 5 kW, 6 kW or even 10 kW residential system all get the same ₹78,000 — no more. The subsidy applies to residential rooftop only.

A note on registrations in 2026

New PM Surya Ghar registrations closed on 6 June 2026. By mid-2026, more than 40 lakh homes were solarised and over 1 crore families had registered. If you already applied, track your application status with your DISCOM and the scheme portal. If you missed it, do not rush a fresh sign-up — watch for the next intake instead. You can still install solar without the subsidy; the payback simply stretches a little longer.

How many units will a 5 kW system make?

As a thumb rule, rooftop solar in India produces about 4 units per day per kW. So a 5 kW system makes roughly:

• ~20 units a day
• ~7,000–8,000 units a year (based on ~1,400–1,600 units/year per kW)

Cloudy days, dust on panels and shadows pull this down, while clear winter mornings in Rajasthan can push it up. Clean your panels and keep them shade-free to stay near the top of the range.

Monthly bill savings and payback

For most homes, ~20 units a day is enough to cover a big chunk — sometimes all — of daily consumption, with surplus units exported to the grid under net metering. Your actual savings depend on your slab tariff and how much you use during the day, so put your own bill into the savings calculator rather than trusting a one-size number.

The headline every homeowner cares about: payback is usually 3–4 years for a subsidised residential rooftop system. After that, the panels keep working for many more years, so the electricity is essentially near-free for a long stretch. Panels carry roughly a 25-year performance warranty, so the system easily outlives its payback.

Roof space you’ll need

A 5 kW system needs a good amount of shadow-free roof — more than a 2 or 3 kW setup. Exact area depends on panel wattage and how tightly they can be laid out, so do not fix a number in your head. Any serious installer will measure your roof and confirm the layout in the quote. Tell them about water tanks, parapets, chimneys and nearby trees, because shadows for even part of the day hurt generation.

What you actually get

A subsidised 5 kW home system is almost always on-grid (grid-tied) — only on-grid systems get net metering and the subsidy, and most subsidised homes do not need a battery. A typical package includes:

• Panels: usually DCR Mono PERC for subsidised homes (must be ALMM-listed with DCR cells to qualify). Brands like Waaree, Tata Power Solar, Vikram Solar and Adani are common.
• Inverter: a grid-tied string inverter (Luminous, Havells and similar), typically 5–10 year warranty.
• Warranties: panels ~25-year performance + ~10–12-year product warranty. If you add a battery later, lithium (LFP) lasts longer than tubular lead-acid.

Because subsidy needs ALMM + DCR compliance, confirm your installer is using eligible modules — otherwise your claim can get stuck.

Net metering: how it works

Net metering is deemed feasible up to 10 kW for homes under the Electricity (Rights of Consumers) Rules, 2020 — so a 5 kW system qualifies comfortably. You apply through your DISCOM after installation, and approval typically takes about 15–45 days. Your bi-directional meter counts what you export against what you import, and you are billed on the net.

Is a 5 kW system right for you?

• Your monthly bill is on the higher side and you have enough shade-free roof — go for it.
• You use a lot of power during the day (AC, pump, home office) — a 5 kW earns its keep.
• Your bill is small or roof space is tight — a 2 or 3 kW system may suit you better and still gets a strong subsidy per rupee spent.

Getting the right price

Prices vary a lot between installers, so do not accept the first number. Compare 3 free quotes from local, reputable companies, check that the panels are ALMM-listed with DCR cells, and match warranties line by line. Run your own bill through the savings calculator to see your realistic monthly savings and payback before signing anything. A little homework here can save you tens of thousands of rupees over the life of the system.

All prices are indicative for 2026 — verify current rates and scheme status locally before buying.