Updated July 2026

2kW Solar System Calculator

Everything about a 2kW solar system in one place: price after subsidy, daily and monthly generation, panel count and roof area, calculated for your own city.

Calculate Your 2kW System

On-grid is the standard, subsidy-eligible choice. A different size may fit you better: try the solar system size calculator.

Your 2kW System Numbers

net cost after subsidy
Gross cost
Subsidy (central + state)
Daily generation
Monthly generation
Panels (540 – 620W)
Roof area needed
Estimated monthly saving
Estimator only: all figures are indicative planning estimates for India based on typical 2026 prices, city-level sun data and standard assumptions. Actual quotes, generation and savings vary by site, installer and DISCOM policy. Confirm final numbers with a certified installer before you commit.

2kW Solar System Price in India (2026)

System TypeGross CostSubsidyNet Cost
On-grid₹1,04,400 – ₹1,27,600₹60,000₹44,400 – ₹67,600
Hybrid (with battery)₹1,29,600 – ₹1,58,400₹60,000₹69,600 – ₹98,400
Off-grid₹1,53,000 – ₹1,87,000₹0₹1,53,000 – ₹1,87,000

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 2kW Solar System Run?

A 2kW system generates about 7.7 units a day (230 units a month) in a typical Indian city. That comfortably powers everything a 1kW system runs plus a washing machine, water pump, cooler and limited use of a 1 ton AC. It suits homes with monthly bills around ₹1,400 to ₹2,200.

2kW Solar System Quick Specs

  • Panels: 4 × 550W modules (fewer with 600 – 620W panels)
  • Roof area: 160 – 200 sq. ft. of shadow-free space
  • Generation: ~7.7 units/day, ~230 units/month, ~2,803 units/year
  • Inverter: 2 kW string or hybrid inverter
  • Payback: typically 3 – 6 years after subsidy, then 20+ years of low-cost power

Is 2kW the Right Size for You?

Choose 2kW for bills between ₹1,400 and ₹2,200 (200 to 260 units): the classic size for compact non-AC or single-cooler homes. In top-up states it is remarkably cheap: Uttar Pradesh and Assam residents stack state money on the ₹60,000 central subsidy and can own 2kW for well under ₹50,000 net. The wrong-fit sign is a planned AC: one more kilowatt captures ₹18,000 of additional subsidy and covers the AC, so read the 3kW page before deciding.

Worked Example: A 2kW System in Varanasi

A Varanasi home installs 2kW on-grid at about ₹1,16,000 gross. The ₹60,000 central subsidy plus Uttar Pradesh's ₹30,000 top-up remove ₹90,000, leaving a net cost near ₹26,000. At the city's 4.5 peak sun hours the system produces about 7.2 units a day (216 a month), trimming up to ₹1,361 off the monthly bill at the local ₹7 tariff. Run the calculator above with your own city to see how these numbers shift with sun hours and state subsidies.

From 2kW Estimate to Installation

  1. 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.
  2. Check the connection. Standard single-phase connections carry 2kW without changes; just confirm your sanctioned load is 2kW or more.
  3. Collect three 2kW 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.
  4. Apply on the national portal before installing, use a registered vendor, and expect the subsidy by bank transfer a few weeks after inspection.

2kW Mistakes to Avoid

  • Stopping 1kW short of the subsidy sweet spot. The third kilowatt earns another ₹18,000 of subsidy; if your usage is near 300 units, 3kW is often cheaper per useful unit.
  • Forgetting the state top-up. In Delhi, UP and Assam the 2kW economics change completely; check the subsidy calculator before assuming the central amount is all.
  • Planning the roof for exactly 4 panels. Leave one row of space; the cheapest future upgrade is the one that needs no structure rework.
  • Sizing to the winter bill. A ₹1,800 January bill that becomes ₹2,800 in June is a 3kW home wearing a 2kW disguise.

How These 2kW Numbers Are Calculated

Daily units = 2 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

2kW Solar System: Frequently Asked Questions

What is the price of a 2kW solar system in India?+
A 2kW on-grid system costs ₹1,04,400 to ₹1,27,600 gross in 2026. After the ₹60,000 central subsidy, the net cost is about ₹44,400 to ₹67,600. Hybrid and off-grid versions cost more because of batteries.
How many units does a 2kW solar system generate per day?+
About 7.7 units a day in a typical Indian city (4.8 peak sun hours), which is roughly 230 units a month and 2,803 units a year. High-sun states like Rajasthan generate 15 to 20% more.
How many panels are needed for 2kW?+
4 panels of 550W, or fewer with 600 to 620W modules. They need about 160 to 200 sq. ft. of shadow-free roof including row spacing and walkways.
What can a 2kW solar system run?+
Comfortably a full small household plus limited AC use. Remember that instantaneous load depends on the inverter rating, while the panels determine total daily energy of about 7.7 units.
How much subsidy does a 2kW system get?+
The central subsidy for a 2kW residential grid-connected system is ₹60,000. Delhi, Uttar Pradesh and Assam add state top-ups on top of this.
What is the payback period for a 2kW system?+
Typically 3 to 6 years after subsidy, depending on your tariff and how much of the generation you self-consume. Use the solar savings and payback calculator for a city-specific figure.
What size inverter does a 2kW solar system need?+
A 2kW string or hybrid inverter is the standard match, with the array allowed to run up to about 1.2 times the inverter rating. Check the backup side separately if it is a hybrid system, since load capacity and solar capacity are different ratings.
How much roof do 4 panels of 550W actually occupy?+
Around 160 to 200 sq. ft. once row spacing and walkways are included, roughly double the raw glass area. High-wattage 620W modules shrink the count and the footprint by about 10 to 15%.