700 kW Solar System: Price in India with Subsidy, Installation Cost, Specifications & More (2025 Guide)
As India moves towards clean and affordable energy, many industries, commercial buildings, and institutions are adopting large-scale solar power systems. A 700 kW solar system is ideal for factories, corporate buildings, schools, warehouses, and hospitals that have large electricity usage.
In this guide, you’ll learn the complete details about pricing, subsidy, area required, generation capacity, and return on investment.
✅ What is a 700 kW Solar System?
A 700 kW (0.7 MW) solar system is a high-capacity plant that can generate enough power to run a large industrial or commercial setup.
⭐ Key Highlights
| Feature | Details |
|---|---|
| Capacity | 700 kW (Grid-Tied) |
| Daily Power Generation | 2,800 – 3,500 Units/Day |
| Monthly Power Generation | 84,000 – 1,05,000 Units |
| Annual Power Generation | 10 – 12.5 Lakh Units |
| Best For | Industries, Malls, Colleges, Cold Storage, Manufacturing Units |
🏭 Types of 700 kW Solar Systems
| Type | Description | Best Use |
|---|---|---|
| On-Grid | Connected to government grid, sell extra power | Industries & commercial |
| Ground-Mounted | Installed on open land | Large manufacturing units |
| Rooftop | Installed on building roof | Corporate offices, schools |
Most 700 kW systems are on-grid because they reduce energy bills and allow earning through net metering.
💰 700 kW Solar System Price in India (2025)
| System Type | Price per Watt | Total Cost (Approx.) |
|---|---|---|
| On-Grid Solar System | ₹42 – ₹55/Watt | ₹2.94 Cr – ₹3.85 Cr |
| Ground-Mounted | ₹40 – ₹48/Watt | ₹2.80 Cr – ₹3.36 Cr |
Why price differs?
✅ Panel brand & technology
✅ Inverter type
✅ Structure type (rooftop / ground)
✅ Cable & safety equipment
✅ Location & installation complexity
📉 Government Subsidy on 700 kW Solar System
Currently, Government subsidies are available mostly for residential solar systems (up to 10 kW).
For commercial / industrial solar, subsidy is not available under PM Surya Ghar scheme.
But you can still save a lot through:
✅ Accelerated Depreciation (40%)
✅ Net Metering Benefits
✅ Reduction in Energy Cost
📐 Area Required for 700 kW Solar System
| Installation Type | Space Required |
|---|---|
| Rooftop | 45,000 – 55,000 Sq. Ft |
| Ground-Mounted | 3.5 – 4 Acres |
⚡ Power Bill Savings
A 700 kW solar system can save:
- ₹6 – ₹9 per unit
- ₹50 – ₹80 Lakhs per year
- Payback period: 3 to 5 Years
After payback → Almost free electricity for 20+ years
🔌 700 kW Solar System Specifications (Typical)
| Component | Details |
|---|---|
| Solar Panels | Mono PERC / Bi-facial |
| Panel Efficiency | 18 – 22% |
| Inverter | 8 x 80–100 kW string inverters |
| Structure | GI/Aluminium, wind resistant |
| Battery | Not required in On-grid |
| Warranty | 25 Years on Panels, 5–10 Years on Inverters |
🛠 Installation Cost Breakdown
| Component | Cost Share |
|---|---|
| Solar Panels | 55–60% |
| Inverter System | 10–15% |
| Structure & Cables | 10–15% |
| Installation & Labour | 10% |
| Protection System | 5% |
🌞 Why Install a 700 kW Solar System?
✅ Heavy reduction in energy bills
✅ Long-term return with minimal maintenance
✅ Good for ESG & Green Compliance
✅ Tax Benefits + Increased property value
✅ Helps company achieve sustainability goals
🔍 Who Should Install 700 kW System?
| Sector | Suitable? |
|---|---|
| Manufacturing Units | ✅✅✅ |
| Hospitals | ✅✅ |
| Schools & Colleges | ✅✅✅ |
| IT Parks / MNC Buildings | ✅✅✅ |
| Cold Storage | ✅✅✅ |
| Shopping Malls | ✅✅✅ |
🧮 ROI Example (Simple Case)
If monthly generation = 90,000 units
Avg. saving = ₹7/unit → ₹6,30,000 per month
Yearly saving → ₹75,60,000
Payback = 3.5 – 4.5 years
System Life = 25+ years → 20 years income
🧾 FAQ – 700 kW Solar System
Q1: Can we run a factory fully on solar with 700 kW?
Yes, depending on your consumption load & net metering setup.
Q2: Can industrial solar get subsidy?
Mostly No — but tax benefits are available.
Q3: What is the lifespan of the system?
20–25 years with minimal maintenance.
Q4: How much land is required for ground-mounted?
Around 3.5–4 acres.
✅ Conclusion
A 700 kW solar system is a smart investment for high energy-consuming businesses.
It provides huge savings, fast ROI, and long-term clean energy with very low maintenance.