Switching to solar energy is a smart move—but only if it's done right. Whether you're a homeowner looking to cut electricity bills, or someone researching how to install solar panels in India, knowing what not to do is just as important as knowing what to do.
This guide answers common questions like:
- “What should I check before installing solar panels?”
- “Why are my solar panels underperforming?”
- “What permits or loans do I need before going solar?”
Let’s explore the top 7 solar installation mistakes—and how to avoid them with pro tips from MYSUN.
1. Not Doing Enough Research Before Installation
Problem: Many homeowners jump into buying solar without understanding the basics, which leads to poor system performance or inflated costs.
Why This Matters:
- Mismatched systems: Choosing the wrong capacity can lead to power shortages or wasted money.
- Poor installer choice: Unqualified contractors may cut corners or use subpar materials.
Pro Tip from MYSUN:
- Compare panel types (monocrystalline vs. polycrystalline vs. thin-film).
- Understand your home’s energy consumption and solar potential.
- Check the installer's reputation through reviews, certifications (MNRE-approved), and completed projects.
2. Choosing the Wrong Type of Solar Panel
Problem: People often choose solar panels without understanding the differences, resulting in poor performance, wasted investment, and space constraints
Know Panels Types:
- Monocrystalline – High efficiency, ideal for limited roof space, higher cost.
- Polycrystalline – Balanced option for most homes, cost-effective.
- Thin-Film – Flexible and lightweight but lower output; suited for shaded areas or industrial roofs.
Mistakes to Avoid:
- Prioritizing cost over efficiency in compact spaces.
- Ignoring local climate (e.g., thin-film works better in diffused sunlight).
- Overlooking aesthetics in housing societies or gated communities.
Pro Tip from MYSUN: Choose based on your roof size, sunlight hours, and energy demand—not just price tags.
3. Incorrect Placement and Positioning
Problem: Improper panel placement = low energy output = poor ROI.
How to Maximize Solar Output:
- Direction: Face panels south (in India) for maximum sunlight.
- Tilt angle: Adjust for your latitude—Delhi (28°), Mumbai (19°), etc.
- Avoid shade: Trees, buildings, water tanks—shade cuts output drastically.
Pro Tip from MYSUN:
- Observe Sunlight Patterns: Spend 10–15 minutes on your rooftop during morning, noon, and late afternoon to note where sunlight falls.
- Use a Compass App to Check South Direction: Use Google Maps or a built-in compass on your phone to align panels correctly.
- Sketch a Simple Rooftop Layout: Draw your rooftop and mark fixed structures like tanks or walls to visually plan your panel layout.
- Consult a Trusted Installer Like MYSUN: Instead of using software, Solar professionals can suggest the right angle based on your city.
4. Underestimating Your Energy Needs
Problem: If your system is too small, you’ll still rely on the grid. Too large, and you’ll overinvest without maximizing returns.
How to Estimate Correctly:
- Check the past 12 months’ electricity bills.
- Factor in future appliances (e.g. EVs, ACs, geysers).
- Use the MYSUN Solar Calculator as per your needs—whether it's for a residential property or a commercial setup—and get a free, customized solar assessment.
Common Mistake:
- Assuming one-size-fits-all. A 3BHK home with 2 ACs needs a different setup than a 1BHK without them.
Pro Tip from MYSUN:
Oversizing without subsidy approval could void net metering eligibility in some states.
5. Not Planning Roof Repairs Before Installation
Problem: If your roof needs repair later, you’ll pay twice—once for dismantling the panels, and again for reinstallation.
What to Inspect Beforehand:
- Age of roof: If over 15 years old, consider re-roofing first.
- Structural strength: Ensure it can bear solar load + wind forces.
Pro Tip from MYSUN:
MYSUN conducts a pre-installation roof audit to prevent such future costs.
6. Ignoring Solar Loan & Financing Options
Problem: Many homeowners don’t know they can finance solar—so they delay installation or use high-interest personal loans.
Best Solar Financing Options in India:
- Easy Financing Options: Pay in easy monthly installments (EMIs).
- Government Subsidies and Incentives: Central and state-level programs offer financial support and subsidies for residential solar systems.
- Tax Benefits: Loans for solar often come with tax advantages, helping you save even more.
Pro Tip from MYSUN:
Why should you wait for when you can install it today with a loan.
7. Overlooking Permits and Legal Compliance
Problem: Installing panels without permits can result in disconnection, fines, or rejection from net metering.
What You Need:
- State-level DISCOM approvals for net metering.
- Electrical safety inspection post-installation.
- Municipal or RWA permissions for visible installations.
Pro Tip from MYSUN:
Choose a trusted provider like MYSUN that handles the entire documentation and approval process for you—saving time and effort.
Final Thoughts: Secure Your Solar Investment
Solar panels are a long-term investment. Avoiding these common mistakes ensures:
- Maximum savings on electricity bills.
- Higher system efficiency and longevity.
- Compliance with local policies and subsidies.
Why Trust MYSUN?
- End-to-end solar services—from design to financing.
- 25-year performance warranty with remote system monitoring.
Ready to Go Solar?
💡 Get a free solar assessment from MYSUN.
📱 Need financing? Apply through MYSUN for fast-track approval.
🌞 Start saving and living sustainably—Choose Better. Choose MYSUN.
FAQs
1. What is the biggest drawback of solar panels?
Solar panels rely on sunlight, so they’re less effective on cloudy or rainy days. To offset this, you can use solar battery storage or remain grid-connected.
2. Do solar panels damage your roof?
If installed properly, no. But improper mounting or old roofs can lead to leaks. A roof audit before installation prevents this risk.Still have questions?
Explore India’s most trusted solar guide at www.itsmysun.com or call +9184483 80218 our experts for a free consultation.
Book your Solar System for just 6,999 and build your personalized payment plan with Flexi-payTM. 
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