If you’re planning a solar rooftop installation, one of the first questions you’ll have is “Do I have enough space on my roof?” The answer depends on your energy needs, the type of panel, and the design of your rooftop.
At Power Planet, a trusted solar company, we simplify this by helping you understand how much area you’ll actually need for a standard 3kW or 5kW solar rooftop system.
Space Requirement for 3kW and 5kW Solar Systems.
On average, you’ll need:
|
System Size
|
Panel Type
|
Area Required
|
Panels
|
|---|---|---|---|
|
3 kwh
|
500W Monocrystalline PERC
|
150–200 sq. ft.
|
6 panels
|
|
5 kwh
|
500W Monocrystalline PERC
|
265–285 sq. ft.
|
10 panels
|
This is based on shadow-free, optimally tilted rooftop space. If your rooftop solar area has obstructions, the space needed may increase slightly.
In cities like Bangalore, our 3kW solar rooftop system installation typically fits easily on small residential terraces.
Why Rooftop Area Really Matters
- Solar panels need direct sunlight for at least 5–6 hours a day. If your panels are shaded by walls, trees, or water tanks, their output drops significantly.
- At Power Planet, we use advanced shadow analysis tools and site assessments to identify the most efficient placement, because even the best panels won’t perform under shade.
- We also ensure the tilt angle is optimized (usually between 15°–25°) to capture maximum sunlight, especially if your roof isn’t facing directly south.
System Performance & Energy Output
A well-installed 3kW system can generate around 330–450 units per month, helping you save ₹2,700–₹3,200 on your monthly bill. A 5kW system can give you 650–750 units, cutting your electricity costs by up to ₹5,000 per month.
Looking for ways to maximize returns? Our team can help you take full advantage of the solar subsidy in India up to ₹78,000, for a solar rooftop system for your home.
What Factors Affect the Space Requirement?
- Panel Efficiency
High-efficiency monocrystalline solar panels need less space than traditional polycrystalline ones. We mostly recommend Mono PERC panels, which offer the best efficiency-to-space ratio for Indian conditions.
- Roof Type
Flat RCC roofs are ideal for solar since they allow flexibility in design.
Sloped or tin sheet roofs may require custom mounting, increasing the area slightly.
- Obstructions & Shape
Water tanks, dish antennas, or complex rooftop designs may reduce usable space. But don’t worry, we specialize in creating custom layouts that maximize efficiency even on irregular roofs.
What If You Don’t Have Enough Area?
If your rooftop is smaller than 250 sq. ft., there are still options:
- Use higher-wattage solar panels like 550W or 590W
- Opt for elevated mounting structures to use roof space below
- Explore east-west installation if south-facing space is limited
Our engineers assess this during your free site visit and design a system tailored to your roof and power needs.
Why Choose Power Planet Solar?
- End-to-end services: survey, installation,legal documentation, subsidy.
- High-efficiency solar panels with warranty.
- Affordable pricing with EMI support.
- Trusted solar company with 100+ successful residential projects.
Start your journey to savings with a reliable solar company that understands your needs. Let Power Planet bring sunshine to your home!
Conclusion:
A 3kW or 5kW system doesn’t require a massive terrace, but it does need the right space, layout, and sunlight. Whether you have a small home or a large one, Power Planet will guide you from solar rooftop installation to real savings. Have questions? Call us at +91 9483979469 or book a free survey today!
FAQs:
1. How much electricity does a 3kW rooftop solar system generate?
A 3kW system generates around 330–450 units/month depending on sunlight, panel quality, and orientation.
2. Will I get a subsidy for my solar rooftop installation?
Yes. Under India’s national subsidy scheme (PM Surya Ghar: Muft Bijli Yojana), homeowners can receive up to ₹78,000 for approved solar rooftop systems for homes.
3. What is the cost of a 5 kW rooftop solar system?
Depending on the panel brand and structure, a 5kW on-grid solar system for a home can cost between ₹2.90–3.40 lakhs.
4. Can I install a rooftop solar system if my roof is small?
Yes! With space-saving panel arrangements and high-efficiency panels, even compact rooftops can accommodate systems.
5. How long does installation take?
Typically, installation of a 3kW or 5kW system takes 3-4 days, including structure setup, panel mounting, wiring, and net metering.