2 kW vs 3 kW Solar System: Which Is Best For Your Home?

The most common question homeowners ask before applying for the PM Surya Ghar scheme is: "How big should my system be?"

The sweet spot for the majority of urban Indian homes is either a 2 kW or a 3 kW system. Choosing the right one depends entirely on your current electricity consumption.

The 2 kW System

• Generation: Produces roughly 8-10 units per day (240-300 units per month).
• Best For: Small families, 2 BHK apartments, and homes with no heavy AC usage. If your monthly bill is strictly under ₹1,500, a 2 kW system will likely zero it out.
• Subsidy: ₹60,000.

The 3 kW System (The Most Popular)

• Generation: Produces roughly 12-15 units per day (360-450 units per month).
• Best For: 3 BHK homes, families running 1-2 air conditioners during the summer, and monthly bills ranging from ₹1,500 to ₹3,000.
• Subsidy: ₹78,000 (The maximum central cap).

Before guessing, use our System Size Estimator to input your exact monthly bill and find the mathematically perfect system size for your roof.