Solar Calculator Uttarakhand | Residential, C&I, Kusum Pump & Battery Storage

Residential Solar Sizing & Subsidy

Average Monthly Electricity Bill (₹)

District in Uttarakhand

Available Shadow-Free Rooftop Area (Optional sq.ft)

💡 UPCL Domestic Slab Modeling: Blended average tariff calculated from current Uttarakhand electricity slabs (₹3.35 to ₹6.80/unit).

Recommended System Capacity

3.0 kW

Required Roof Area: 225 sq.ft

PM Surya Ghar Central Subsidy (DBT)

₹78,000

Estimated Net Customer Investment

₹1,02,000

Gross Project Cost: ₹1,80,000

Estimated Annual Electricity Savings

₹24,528/yr

Simple Payback Period: 3.2 Years

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Commercial & Industrial Solar Sizing

Monthly Electricity Consumption (Units in kWh)

Sanctioned Contract Demand (kVA / kW)

Current Grid Tariff Rate (₹ per kWh)

Daytime Operational Load (%)

Recommended Captive Plant Size

50.0 kW

Estimated Turnkey Project Cost

₹22,00,000

Year 1 Tax Savings (40% Acc. Depreciation)

₹2,20,000

Estimated Annual Power Bill Savings

₹5,77,200/yr

Payback: 3.4 Years | 25-Year Levelized Cost: ~₹2.45/unit

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Solar Agriculture Pump (PM-KUSUM Component-B)

Pump Capacity (Horsepower - HP)

Required Dynamic Pumping Head (Meters)

Pump Configuration

Total PM-KUSUM Benchmark Cost

₹2,40,000

Combined 60% Subsidy (30% Central + 30% UK Govt)

₹1,44,000

Farmer Share (Only 40%)

₹96,000

Farmer margin money 10%: ₹24,000 | Bank loan 30%: ₹72,000

Estimated Diesel Fuel Replaced

₹1,62,000/yr

Daily discharge: approx 85,000 Litres/day

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Solar Battery Storage & Autonomy Sizing

Connected Critical Load (Watts)

e.g., Lights, Fans, Refrigerator, Wi-Fi router, TV

Desired Backup Duration (Hours)

Battery Chemistry

Inverter DC System Voltage

Required Battery Gross Energy

5.80 kWh

Required Capacity at Chosen Voltage

120 Ah @ 48V

Recommended Energy Storage Pack

51.2V 100Ah (5.12 kWh) LiFePO4 Wall-Mount Battery with Smart CAN/RS485 BMS

Expected Lifespan: 12–15 Years (5,000+ deep cycles)

Estimated Storage Cost

₹1,15,000 - ₹1,30,000

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Solar Generation & Technical Losses Model

System Capacity (kW)

District Location

Roof Tilt Angle (Degrees from Horizontal)

Optimal tilt for Uttarakhand latitude is 28°–30° South.

Estimated Daily Solar Generation

21.8 kWh / day

Estimated Annual Generation

7,950 kWh / year

System Performance Ratio (PR)

79.2%

Losses modeled: Inverter (2.5%), Cabling (1.8%), Soiling (2.0%), Temperature (net 3.5%)

Environmental CO₂ Abatement

~6.5 Metric Tons CO₂ / yr

Equivalent to planting ~290 mature Himalayan trees

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Scientific Solar Calculators for Uttarakhand