1 kW Solar System Price in India (2026): Cost, Subsidy & Generation Sizing

1 kW Solar System Financial Overview

Estimated gross turnkey cost₹60,000 – ₹70,000
PM Surya Ghar central subsidy₹30,000
Estimated monthly generation120 – 140 units
Annual electricity savings₹10,000 – ₹14,000 / year
Estimated capital payback3.0 – 3.5 years
Net homeowner investment₹30,000 – ₹40,000
Sources: Ministry of New and Renewable Energy (MNRE), National Portal for Rooftop Solar, verified EPC bids 2026.. How we calculate

A 1 kW on-grid solar system is the entry-level solar solution in India. Under the PM Surya Ghar Muft Bijli Yojana, eligible residential homeowners receive an upfront direct central subsidy of ₹30,000, bringing the net out-of-pocket investment down to approximately ₹35,000.

Recommended for: 1 BHK apartments, small shops, rural homes consuming up to 150 units/month
Rooftop space required: 80 – 100 sq ft (shadow-free)

Technical hardware specifications for 1 kW

Standard components included in a certified turnkey installation:

System SpecificationHardware & Engineering Detail
Solar Modules2 x 540W Mono PERC / TOPCon Bifacial
Inverter Type1 kW Single Phase Grid-Tie (MPPT efficiency >97%)
Rooftop Requirement80 – 100 sq ft shadow-free
Daily Energy Generation4 – 4.5 kWh (units) / day
Grid InterconnectionBi-directional Net Meter (Single Phase)
Hardware Warranty25-yr panel output, 5–10 yr inverter

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Frequently asked questions: 1 kW Solar

Can a 1 kW solar system run an air conditioner?+
No. A standard 1.5-ton AC consumes 1,200W to 1,800W of power, which exceeds 1 kW. A 1 kW on-grid system offset base home loads (refrigerator, fans, lights, TV) while any deficit is drawn seamlessly from the DISCOM grid.
How much subsidy do I get on a 1 kW system in India?+
Under the PM Surya Ghar scheme, individual residential homeowners receive exactly ₹30,000 central subsidy for a 1 kW rooftop solar system.

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