✅ 1 kW Solar System – Daily & Monthly Generation

☀️ Daily Generation (India average)

A 1 kW rooftop solar system produces:

👉 4 to 5 units (kWh) per day

(This depends on sunlight, weather, roof direction, and shade.)

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📅 Monthly Generation

Daily: 4 to 5 units
Monthly: 4 × 30 = 120 units
or 5 × 30 = 150 units

👉 Monthly output = 120–150 units

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📆 Yearly Generation

120–150 units × 12 =

👉 1,440 – 1,800 units per year

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⚡ Understanding “1 kW”

• 1 kW is the capacity of the solar system

• It tells you the maximum power the system can generate at peak sunlight

• But actual daily generation is always lower because sunlight changes throughout the day

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💡 Want to know cost savings?

Tell me your current per-unit electricity rate (₹ per unit), and I will calculate:

• Monthly savings

• Yearly savings

• Payback time (ROI) for solar installation

Just send me your rate or your average electricity bill amount.

You said:

how much bescom pays per unit

ChatGPT said:

Good question — how much Bangalore Electricity Supply Company (BESCOM) pays per unit for surplus solar power depends on the scheme and the size of your rooftop-solar installation. As of 2025 the approximate pay-back (or buy-back) rates are:

• For a domestic rooftop solar system (1 kW–10 kW) exporting surplus power: ~ ₹ 3.86 per unit (kWh). SolarQuarter+1

• Systems commissioned under the subsidized home-solar scheme (PM Surya Ghar Muft Bijli Yojana) — the buy-back/excess-power rate is lower, depending on size: e.g. ~ ₹ 2.30 to ₹ 2.93 per unit (depending on capacity) if subsidy was taken. SolarQuarter+1

⚠️ What to check / keep in mind

• The quoted rate (₹ 3.86) is for non-subsidized domestic rooftop systems. Subsidy-beneficiaries get lower pay-back. SolarQuarter+1

• The “payment” generally applies only for net exported energy — i.e. after your own consumption. If you consume more than you produce, surplus matters. World Resources Institute+2The Economic Times+2

• Details like meter-type (net-meter), accurate export recording, and registration under BESCOM’s rooftop-solar scheme are necessary to get payment/credit.