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২টি AC চালিয়েও কমবে বিদ্যুতের বিল!
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News18•21-09-2026, 08:31
Solar System for 2 ACs, 3 Fans: How Many kW Needed? Full Calculation & Subsidy Details
  • •A house with 2 ACs and 3 fans may require a 5-6 kW solar system to meet electricity demands.
  • •The PM Surya Ghar: Muft Bijli Yojana offers subsidies of up to 78,000 rupees for rooftop solar installations.
  • •Two 1.5-ton inverter ACs and three fans running simultaneously can create a load of 2.6 to 3.2 kilowatts.
  • •Using 550-watt panels, approximately 10 panels are needed for a 5 kW system and about 11 for a 6 kW system.
  • •Determining solar system capacity requires considering electricity bills, daily consumption, AC usage hours, and roof area.

Key Questions Answered

If a house runs two 1.5-ton inverter ACs and three ceiling fans simultaneously, the estimated load is between 2.6 and 3.2 kilowatts. For a home featuring additional appliances like refrigerators, TVs, and water pumps alongside two ACs, a 5 to 6 kW rooftop solar system is typically recommended.

Eligible household electricity consumers receive financial assistance of 30,000 rupees per kW for the first 2 kW and 18,000 rupees for an additional 1 kW under the central government's PM Surya Ghar: Muft Bijli Yojana, bringing the maximum central subsidy up to 78,000 rupees.

According to a general calculation, approximately 100 square feet of space is needed for each 1 kW capacity. This means a 5 kW solar system requires about 500 square feet, while a 6 kW system can need up to 600 square feet of roof area.