Solar Installation India: The Complete 2026 Guide for Homes & Businesses
India is in the middle of a once-in-a-generation energy transition. With electricity tariffs rising every year and the government actively pushing rooftop adoption through the PM Surya Ghar Yojana, solar installation India is no longer a "future" investment — it's the smartest financial decision a homeowner or business can make today.
At SurDev Energy, widely considered the best solar company in Indore, we've installed solar across residential rooftops, commercial buildings, schools, factories, and warehouses. This guide brings together everything we've learned so you can make an informed decision. You can also estimate your savings instantly with our free solar calculator before you read further.
Based in Indore? See our dedicated service page for solar installation in Indore — site survey, design, subsidy guidance, and net metering support.
Researching a specific size? See our dedicated breakdown of 5kW rooftop solar installation cost — cost, subsidy, EMI and savings for the most popular home size.
Why Solar Installation in India Makes Sense in 2026
India receives 300+ sunny days a year, electricity prices have grown ~7% annually for the last decade, and a typical solar rooftop system now pays for itself in 3 to 5 years. After payback, you essentially get free electricity for the next 20+ years. (See exactly how much you'd save in our savings breakdown section.)
Key drivers fueling solar installation India:
- PM Surya Ghar Yojana offering up to ₹78,000 in central subsidy for residential rooftops
- Net-metering available in almost every state
- Commercial tariff arbitrage (grid power costs ₹8–₹12/unit, solar costs ₹2.5–₹3/unit over its lifetime)
- 25-year manufacturer warranties on panels
- Accelerated depreciation (40% in year one) for commercial solar installation
Types of Solar Systems You Can Install
1. On-Grid Solar Rooftop
Connected to the grid with net-metering. Best for homes and offices where grid power is reliable. This is what 90% of solar rooftop installations in India use.
2. Off-Grid Solar
Includes batteries. Ideal for areas with frequent power cuts or remote locations.
3. Hybrid Solar
On-grid + battery backup. Becoming popular in Tier-1 cities and for commercial solar installation projects that cannot afford downtime. Read our deep-dive on commercial solar installation, ROI & tax benefits.
Step-by-Step: How Solar Installation in India Works
Step 1 — Site Survey A certified engineer measures your shadow-free area, roof orientation, and inspects your electrical load. At SurDev Energy, we do this free of cost.
Step 2 — System Sizing & Proposal Based on your monthly bill (in units/kWh), we design a system. A typical Indian home needs 3 kW–5 kW; a small commercial building needs 10 kW–50 kW.
Step 3 — Subsidy Application (PM Surya Ghar Yojana) For residential systems, we file your PM Surya Ghar Yojana application on the National Portal, get the feasibility approval, and lock in your subsidy before installation begins. Full walkthrough here: PM Surya Ghar Yojana 2026 — Subsidy & Application Guide.
Step 4 — Installation Mounting structure, panels, inverter, DC/AC cabling, earthing, and lightning arrester — typically completed in 3–7 days for homes and 2–6 weeks for commercial solar installation.
Step 5 — Net-Meter & Inspection DISCOM inspects, replaces your meter with a bi-directional net-meter, and your plant goes live.
Step 6 — Subsidy Disbursement PM Surya Ghar Yojana subsidy is credited directly to your bank account within 30 days of commissioning.
What Does Solar Installation Cost in India?
| System Size | Typical Use | Approx. Cost (Before Subsidy) | After PM Surya Ghar Subsidy |
|---|---|---|---|
| 1 kW | Small home | ₹65,000 | ₹35,000 |
| 3 kW | Average 3BHK | ₹1,80,000 | ₹1,02,000 |
| 5 kW | Large villa | ₹2,75,000 | ₹1,97,000 |
| 10 kW | Shop / clinic | ₹5,50,000 | N/A (commercial) |
| 50 kW+ | Factory / school | ₹2,00,00,000+ | Avail accelerated depreciation |
These are turnkey prices for Tier-1 panels, IGBT inverters, GI mounting structures, and full DISCOM liaisoning — exactly the quality SurDev Energy delivers as the best solar company in Indore. Browse our full range of residential & commercial solar services for what's included.
Understanding PM Surya Ghar Yojana
PM Surya Ghar: Muft Bijli Yojana is the Government of India's flagship rooftop solar scheme. It offers:
- ₹30,000 subsidy for 1 kW
- ₹60,000 subsidy for 2 kW
- ₹78,000 subsidy for 3 kW and above
- Free electricity up to 300 units per month for participating households
Eligibility is straightforward: you must be a residential consumer with a valid electricity connection. We handle the entire PM Surya Ghar Yojana paperwork end-to-end.
Commercial Solar Installation: Why It's a No-Brainer
For factories, hotels, schools, hospitals, and showrooms, commercial solar installation delivers:
- 40% accelerated depreciation in Year 1 (huge tax saving)
- Internal rate of return (IRR) of 18–24%
- Hedging against future tariff hikes
- ESG / sustainability reporting benefits
A 100 kW commercial system in Indore typically generates ~1.5 lakh units/year, saving ₹15–₹18 lakh annually in electricity bills.
How to Choose the Best Solar Company in Indore (or Anywhere in India)
Not all installers are equal. Here's a checklist before signing:
- MNRE-empanelled vendor — required for PM Surya Ghar Yojana subsidy
- Tier-1 panel brands (Waaree, Adani, Vikram, Premier)
- Indian-made inverters with 5+ year warranty
- In-house design + execution team (avoid sub-contractors)
- Post-installation AMC and monitoring
- Transparent quotation — no hidden costs
SurDev Energy ticks every one of these boxes, which is why we're trusted as the best solar company in Indore by 500+ residential and commercial clients.
Final Word
Solar installation India in 2026 is faster, cheaper, and more profitable than ever. With PM Surya Ghar Yojana subsidies, falling panel prices, and a mature installer ecosystem, there has never been a better time to switch.
Whether you're a homeowner exploring solar rooftop options or an enterprise planning commercial solar installation, SurDev Energy can design, install, and maintain the perfect system for you. Also see our solar rooftop buying guide, learn why we're the best solar company in Indore, and use our checklist to choose the right solar installer near you.
Ready to begin? [Book a free site inspection](/#book-visit) with the best solar company in Indore today.
