Solar Panel for 1 Ton AC in India 2026

Related Calculators

Solar Panel for 1 Ton AC: Complete 2026 Guide

A 1 ton split AC is a significant electricity consumer in an Indian home. Running a 3-star 1 ton AC for 8 hours/day can meaningfully add to your monthly electricity bill. A properly sized solar system can bring this AC-related cost to effectively ₹0.

How Much Power Does a 1 Ton AC Use?

AC Type	Power Draw	Units/Day (8 hrs)	Units/Month	Monthly Bill (₹9/unit)
5-Star Inverter	700–800W	5.6–6.4	168–193	₹1,510–1,740
4-Star Inverter	800–900W	6.4–7.2	193–216	₹1,740–1,940
3-Star Inverter	900–1,000W	7.2–8	216–240	₹1,940–2,160
3-Star Non-Inverter	1,000–1,200W	8–9.6	240–290	₹2,160–2,610

What Solar System Size Do You Need for a 1 Ton AC?

Use Case	System Size	Panels (400W)	Net Cost (After Subsidy)	Monthly Savings
Only 1 ton AC (5-star, 6 hrs/day)	2 kW	5 panels	₹50,000	₹1,134–₹1,298
1 Ton AC + basic home loads	3 kW	8 panels	₹82,000	₹3,402–₹3,893
1 Ton AC + full home (3BHK)	4 kW	10 panels	₹1,22,000	₹4,536–₹5,191

* Net cost after PM Surya Ghar subsidy (capped at ₹78,000 for 3kW+). Savings at ₹9/unit average tariff.

Can a Smaller Solar System Run a 1 Ton AC?

Not reliably. A 1 ton AC draws 0.7–1.1kW depending on the model. A solar system smaller than 2kW generates roughly that much at peak — leaving zero margin for inverter losses, other loads, or reduced irradiance (cloudy days, partial shade). You need at least a 2kW system for a 1 ton AC.

Roof Space Required

A 3kW system (8 panels of 400W) requires approximately 200–250 sq.ft of shadow-free roof space. A 4kW system needs 270–320 sq.ft. Use our Roof Area Calculator to verify.

Cost Breakdown for a 2kW System (for 1 Ton AC)

Solar panels (8 × 400W, DCR): ₹80,000–95,000
On-grid inverter (3kW): ₹25,000–40,000
Mounting structure + cables: ₹20,000–30,000
Installation, net meter + DISCOM charges: about ₹35,000
Total gross: ₹1,60,000–2,00,000
PM Surya Ghar subsidy: −₹78,000
Your net investment: ₹82,000–1,22,000

Payback Period — Running AC on Solar

If your 1 ton AC plus home loads previously cost ₹2,000–3,000/month, a 3kW solar system pays back in:

At ₹2,000/month savings: ~3.4–5 years (on ₹82,000–1,22,000 net investment)
At ₹3,000/month savings: ~2.3–3.4 years

After payback, you get free AC cooling for 20+ years.

Comparison: AC Size vs Solar Requirements

AC Size	Power Draw	Min Solar Size	Panels Needed
1 Ton	800–1,000W	1.5 kW	4 panels
1.5 Ton	1,200–1,500W	2 kW	5–6 panels
2 Ton	1,600–2,200W	3 kW	8 panels
2.5 Ton	2,000–2,800W	3.5–4 kW	9–10 panels
3 Ton	2,400–3,600W	5 kW	13 panels

FAQs — Solar Panel for 1 Ton AC

How many solar panels are needed to run a 1 ton AC?

A 1 ton split inverter AC draws approximately 700–1100W (0.7–1.1 kW) depending on the star rating and ambient temperature. To run a 1 ton AC plus basic home loads (fans, lights, TV, fridge) for 8 hours a day, you need a 2–3kW solar system. With 400W panels, that means 5–8 panels. A 5-star inverter AC is most efficient and requires fewer panels.

What size solar system is needed for a 1 ton AC?

For running a 1 ton AC alone (without other home loads), a 2kW on-grid solar system is sufficient in most Indian cities with 5+ peak sun hours. If you also want to power fans, lights, TV, and a refrigerator along with the AC, a 3kW system is recommended. Use our Solar Panel for AC Calculator for a precise estimate based on your usage hours.

How much does a solar system for a 1 ton AC cost in India?

A 2kW solar system for a 1 ton AC costs approximately ₹1.10 lakh gross. After the ₹60,000 PM Surya Ghar subsidy, the net cost is around ₹50,000. A 3kW system costs approximately ₹1.60 lakh gross (₹82,000 after the ₹78,000 subsidy).

Can a smaller solar system run a 1 ton AC?

A solar system smaller than 2kW is not recommended for a 1 ton AC — it leaves no headroom for inverter losses, other loads, or reduced irradiance (cloudy days, partial shade). You need at least a 2kW system for a 1 ton AC, or a 3kW system if you want to run other appliances simultaneously.

How many units does a 1 ton AC consume per month?

A 5-star 1 ton inverter AC running 8 hours/day consumes approximately 5.6–6.4 units/day, or 168–193 units/month. A 3-star non-inverter model consumes noticeably more. Upgrading to a 5-star inverter model significantly reduces the solar system size needed.

Calculate Your Solar Cost for 1 Ton AC

Get exact cost, subsidy, and monthly savings for your system.

AC Solar Calculator → Full Cost Calculator

Solar Panel for 1 Ton AC — How Many Panels & What System Size?

❄️ Solar for 1 Ton AC — Quick Calculator