5kW Solar System Price in India (2026)
| System Type | Gross Cost | Subsidy | Net Cost |
|---|
| On-grid | ₹2,61,000 – ₹3,19,000 | ₹78,000 | ₹1,83,000 – ₹2,41,000 |
| Hybrid (with battery) | ₹3,24,000 – ₹3,96,000 | ₹78,000 | ₹2,46,000 – ₹3,18,000 |
| Off-grid | ₹3,82,500 – ₹4,67,500 | ₹0 | ₹3,82,500 – ₹4,67,500 |
State top-ups in Delhi, Uttar Pradesh and Assam reduce the net cost further; the calculator above applies them
when you pick your state. For a full quote-style breakdown, use the
solar panel cost calculator.
What Can a 5kW Solar System Run?
A 5kW system generates about 19.2 units a day (576 units a month) in a typical Indian city. That
comfortably powers a large household with two air conditioners, a geyser and all standard appliances. It matches monthly bills of ₹3,800 to ₹5,500 and is the standard choice for AC-heavy homes.
5kW Solar System Quick Specs
- Panels: 10 × 550W modules (fewer with 600 – 620W panels)
- Roof area: 400 – 500 sq. ft. of shadow-free space
- Generation: ~19.2 units/day, ~576 units/month, ~7,008 units/year
- Inverter: 5 kW string or hybrid inverter
- Payback: typically 3 – 6 years after subsidy, then 20+ years of low-cost power
Is 5kW the Right Size for You?
Move to 5kW when the bill lives between ₹3,800 and ₹5,500 (500 to 650 units): two-AC households, joint families, or homes with a geyser-heavy winter. The subsidy stays at the ₹78,000 cap, so the extra two kilowatts over a 3kW system are bought at full price; they still pay back in 4 to 6 years because they offset top-slab units. Wrong-fit signs: a roof under 400 usable sq. ft., or consumption below 450 units where the marginal kilowatts would mostly export.
Worked Example: A 5kW System in Ludhiana
A Ludhiana home installs 5kW on-grid at about ₹2,90,000 gross. After the capped ₹78,000 subsidy, leaving a net
cost near ₹2,12,000. At the city's 5.3 peak sun hours the system produces
about 21.2 units a day (636 a month), trimming up to ₹4,293
off the monthly bill at the local ₹7.5 tariff. Run the calculator above with your own city to see
how these numbers shift with sun hours and state subsidies.
From 5kW Estimate to Installation
- Confirm the size against your usage with the
solar system size calculator; the right kW comes from your
units, not from a page you happened to land on.
- Check the connection. Several DISCOMs require a three-phase connection at or above 5kW; check your sanction early because a phase upgrade adds weeks and a few thousand rupees.
- Collect three 5kW quotes and compare them line by line against the
cost calculator's gross range; quotes far below it are cutting
something you will miss later.
- Apply on the national portal before installing, use a registered vendor, and expect the
subsidy by bank transfer a few weeks after inspection.
5kW Mistakes to Avoid
- Being surprised by the flat subsidy. 5kW earns the same ₹78,000 as 3kW; budget the two extra kilowatts at full cost from the start.
- Squeezing 10 panels onto 350 sq. ft. A 5kW array genuinely needs 400 to 500 sq. ft. with spacing; cramming rows shades them in winter.
- Keeping a single-phase sanction. Where three phase is mandated at 5kW, applying late stalls the net-metering approval after the panels are already up.
- Skipping the conduit for tomorrow's EV. AC-heavy homes buy EVs next; a spare conduit from roof to parking during installation costs nothing compared to retrofitting.
How These 5kW Numbers Are Calculated
Daily units = 5 kW × Peak sun hours × 0.8
Net cost = Gross cost − Subsidy
Monthly saving ≈ Monthly units × Your tariff × 0.9
Assumptions
- Cost: on-grid ₹58,000/kW, hybrid ₹72,000/kW, off-grid ₹85,000/kW, ±10%
- Generation: your city's peak sun hours × 0.8 performance ratio
- Saving: assumes ~90% of generation offsets billed units at your tariff
