Skip to content

4 kW · Home rooftop system

4 kW solar system in Indore

Larger homes running two ACs in summer, or families that work from home, with bills of ₹3,500–₹4,500.

At a glance

5,836units / year

Price
₹2.32 lakh – ₹2.72 lakh
Subsidy
₹78,000
Savings / month
₹3,529
Payback
3.9 years

Specifications & numbers

System size
4 kWp
Modules
8 × 545 W mono
Roof area
~360 sq ft
Generation / month
~486 units
Generation / year
~5,836 units
Price (before subsidy)
₹2.32 lakh – ₹2.72 lakh
PM Surya Ghar subsidy
₹78,000
Net cost (mid)
₹1.74 lakh
Savings, year 1
₹42,348
Savings, 25 years
₹14.82 lakh
EMI (indicative)
₹5,292/mo · 9.5% · 5 yrs
CO₂ avoided, 25 years
97.6 t

Month by month in Indore

508Jan508Feb592Mar556Apr568May452Jun352Jul340Aug436Sep524Oct504Nov496Dec
Units per month Monsoon months

What it can run

  • Two ACs with staggered use
  • Refrigerator, washing machine, induction cooking
  • Borewell pump
  • EV charging for a scooter

Good to know

  • Eight modules, about 360 sq ft of roof.
  • Subsidy remains capped at ₹78,000 above 3 kW.
  • A good size to plan around a future electric car: daytime charging absorbs surplus summer generation.

4 kW solar: questions

How many solar panels are needed for 4 kW?

With 545 W modules, a 4 kW system uses eight panels (4.36 kWp). With older 440 W modules it would need ten. Fewer, larger modules mean less roof space and fewer connections.

How much solar subsidy can I get in Madhya Pradesh?

Under PM Surya Ghar: Muft Bijli Yojana, homes get ₹30,000 per kW for the first 2 kW and ₹18,000 for the third kW — ₹30,000 for 1 kW, ₹60,000 for 2 kW and a maximum of ₹78,000 for 3 kW or more. Housing societies and RWAs get ₹18,000 per kW for common facilities.

Who is eligible for the PM Surya Ghar solar subsidy?

An Indian household with its own house and roof suitable for solar, a valid domestic electricity connection, and no earlier solar subsidy on that connection. The system must use DCR (domestic content) modules and be installed by a vendor registered on the national portal.

Free survey · No obligation

Your roof is already earning. Start collecting.

Tell us a little about your property. An engineer calls back, books a free site survey and sends a clear, itemised quote.

Opens WhatsApp or your email app with your details filled in. Nothing is stored on this website.