7 Common Mistakes People Make While Choosing Solar Panels

By SolSetu Editorial Team | Updated: October 2025

Switching to solar energy is one of the smartest decisions for homeowners and businesses today. However, many people end up making costly mistakes while selecting their solar panels — often because of poor guidance or misinformation. At SolSetu, we connect you with verified solar vendors and help you make smarter choices. Here are the top 7 mistakes to avoid when choosing solar panels in India.

1. Ignoring Panel Efficiency

Many buyers choose panels just based on price, overlooking efficiency ratings. A higher-efficiency panel might cost more upfront but delivers better long-term performance — especially in limited rooftop space. Always compare wattage and efficiency before purchase.

2. Not Checking for BIS or MNRE Certification

Buying uncertified panels can be a costly mistake. Always ensure the solar panels are approved by the MNRE (Ministry of New and Renewable Energy) and carry BIS certification. Only certified panels qualify for government subsidies under the PM Surya Ghar Yojana.

3. Overlooking Warranty & Service Support

Solar panels typically come with a 10–25 year warranty. Many users forget to verify the manufacturer’s after-sales service network or warranty claim process — resulting in future headaches. Always prefer vendors who offer transparent service commitments.

4. Choosing the Wrong Type of Panel

There are two main types: Monocrystalline (high efficiency, higher cost) and Polycrystalline (lower efficiency, budget-friendly). The right choice depends on your budget, space, and sunlight conditions. Consult a verified SolSetu solar vendor for a customized suggestion.

5. Ignoring Inverter Compatibility

Even if your panels are top-notch, a mismatched inverter can cause major efficiency losses. Ensure your solar inverter and panels are compatible in terms of voltage and output. Many vendors ignore this — but a professional installer won’t.

6. Falling for Unrealistic Discounts

Beware of vendors offering extremely low prices — often it means poor-quality components or no service warranty. Always verify the vendor’s portfolio, installation photos, and reviews on SolSetu before payment.

7. Not Estimating Actual Energy Needs

Installing a system that’s too small (or too large) for your needs affects ROI. Calculate your average energy consumption and growth plans before choosing system capacity. SolSetu’s Solar Savings Calculator can help you estimate the right size.

💡 Final Takeaway

Choosing solar panels isn’t just about price — it’s about long-term reliability, warranty, and energy output. Avoid these mistakes and partner with verified professionals through SolSetu to ensure quality, safety, and savings.