Introduction
Electricity Cost Calculation vs Solar Savings in India is one of the most important comparisons for homeowners and businesses planning to switch to solar. At Solyug Energy, we regularly help clients understand how much they can save by comparing grid electricity rates with solar power generation costs.
This detailed guide explains real examples, ROI, payback period, and long-term savings across residential, commercial, and industrial sectors.
Electricity Cost Calculation vs Solar Savings in India: Current Electricity Tariffs
In India, electricity costs vary by sector:
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Residential: ₹6–₹8 per unit
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Commercial: ₹7–₹10 per unit
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Industrial: ₹8–₹12 per unit
Tariffs increase 4–6% every year due to fuel prices, infrastructure costs, and demand growth. This rising trend makes electricity cost calculation essential before deciding on solar investment.
Solar Power Cost Comparison in India
When comparing electricity cost calculation vs solar savings in India, rooftop solar offers major advantages:
CAPEX Model in Solar Energy
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₹2.5–₹3.5 per unit after ROI
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One-time investment
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3–5 year payback
OPEX Model in Solar Energy
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₹4–₹6 per unit under long-term PPA
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No upfront investment
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Fixed tariff for 15–25 years
Solar power is typically 40–60% cheaper than DISCOM electricity.
Residential Example: Solar Savings Calculation
A household consuming 300 units/month at ₹8 per unit:
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Monthly bill: ₹2,400
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Annual bill: ₹28,800
3 kW rooftop system:
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Investment: ₹1.5 lakh (after subsidy)
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Annual generation: 3600 units
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Annual savings: ₹28,800
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Payback: 4 years
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25-year savings: ₹10–12 lakh
Commercial Example: Electricity Cost vs Solar Savings
A textile business consuming 1,00,000 units/month at ₹9 per unit:
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Monthly bill: ₹9 lakh
200 kW OPEX solar plant:
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Solar tariff: ₹5/unit
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New bill: ₹5 lakh
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Monthly savings: ₹4 lakh
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Annual savings: ₹48 lakh
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20-year savings: ₹9.6 crore
Industrial Example: Large-Scale Solar ROI MNRE
1 MW CAPEX installation:
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Investment: ₹4 crore
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Generation: 14 lakh units/year
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Payback: ~4 years
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25-year savings: ₹10.5 crore+
This clearly shows how electricity cost calculation vs solar savings in India strongly favors solar investment.
Net Metering Advantage
Net metering allows excess electricity to be exported to the grid and credited against your bill, further increasing your total savings.
Conclusion
Electricity prices are rising every year, but solar power provides predictable, low-cost electricity for 25+ years. When properly analyzed through electricity cost calculation vs solar savings in India, the financial benefits are undeniable.
At Solyug Energy, we provide accurate savings calculations, ROI analysis, structural design, and approval-ready documentation for residential, commercial, and industrial solar projects across India.