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A 700W solar panel can reduce the number of panels needed, but its larger size may not suit every roof. Compare dimensions, prices, system costs, and Bajaj Finance Solar Finance options before planning your installation.
Planning a rooftop solar system is not simply about choosing the panel with the highest wattage. Your terrace may look spacious at first, but water tanks, staircases, parapet walls, shaded corners, and the space needed between panels can quickly reduce the area that is usable. This is why solar panel size matters just as much as its power rating. A 700W panel gives you more capacity from each module, which can reduce the total number of panels needed for a larger system. However, these are generally large-format panels, so you also need enough clear space to accommodate their dimensions and weight. Comparing the wattage, physical size, efficiency, and weight of different panels can help you work out whether fewer large panels or more smaller panels make better use of your available roof space.
Once you know how much usable roof space you have, how many panels can fit, and what system capacity you need, you can start planning the complete installation and its cost. Bajaj Finance Solar Finance offers financing of up to Rs. 5,00,000, with repayment tenures from 3 to 60 months and basic KYC requirements. You can explore eligible solar panels and complete solar systems through 1.5 lakh+ partner stores across 4,000+ cities and spread the purchase into manageable monthly instalments. This gives you more flexibility to consider suitable panels, an inverter, mounting equipment, wiring, and other eligible components based on your installation requirements rather than planning the entire system around the upfront cost.
Does higher wattage mean a bigger solar panel?
Not necessarily. Wattage tells you how much power a panel is rated to produce, while dimensions tell you how much roof space it occupies. Two similarly sized panels can have different wattages because their efficiency differs.
Three factors matter:
- Panel dimensions: Length and width determine how much roof space a panel needs, along with the required mounting and spacing.
- Efficiency: A more efficient panel converts more sunlight into electricity, helping provide greater rated power within a given area.
- Wattage: This is the panel’s rated power output under specified test conditions. A higher wattage does not necessarily mean the panel will fit your roof better.
If roof space is limited, compare the actual dimensions and watts per square metre rather than wattage alone.
What sizes do solar panels come in?
There is no standard physical size for each wattage. Dimensions vary by model and manufacturer, so use these ranges only as a starting point.
| Panel category | Common wattage range | Typical dimensions | May suit |
| Residential PERC | 350W to 420W | 1.7 to 1.8 m × 1.0 to 1.1 m | Residential rooftops |
| Residential TOPCon | 400W to 450W | 1.7 to 1.8 m × 1.0 to 1.1 m | Roofs with limited usable space |
| Large-format modules | 550W to 700W | 2.0 to 2.3 m × 1.1 to 1.3 m | Larger residential and commercial roofs |
| 700W+ modules | 700W and above | 2.1 to 2.4 m × 1.1 to 1.3 m | Roofs that can accommodate larger panels |
Always check the exact model’s datasheet before planning the layout. Small differences in dimensions can affect how panels fit around rooftop obstructions.
What should you check before choosing a 700W solar panel?
A 700-watt solar panel can reduce the number of modules required for a larger system, but fewer panels do not necessarily make installation easier.
- Dimensions: Measure usable roof space and compare it with the exact panel dimensions.
- Weight: Check whether the roof and mounting structure can support the proposed panels.
- Inverter compatibility: Compare the panel’s Voc, Vmp, Isc and Imp with the inverter’s voltage and current limits.
- Shading: Account for shade from water tanks, trees, neighbouring buildings, and other structures.
- Scheme requirements: If you plan to use a government scheme, verify the exact module against the current eligibility requirements.
How many 700W panels would a solar system need?
Dividing the required system capacity by 700W gives you an initial panel-count estimate. Since you cannot install part of a panel, the resulting capacity may be higher than the target.
| Target system size | Basic calculation | Approx. number of 700W panels | Resulting panel capacity |
| 3 kW | 3,000W ÷ 700W | 5 | 3.5 kW |
| 5 kW | 5,000W ÷ 700W | 8 | 5.6 kW |
| 10 kW | 10,000W ÷ 700W | 15 | 10.5 kW |
These are planning estimates. Final panel count depends on the exact panel specifications, inverter configuration, roof layout, shading, and installation requirements.
How much can a 700W solar panel system cost?
A complete solar system costs more than the panels alone. Your quotation may also include the inverter, mounting structure, wiring, protection equipment, and installation.
| System configuration | Estimated cost before subsidy* | Indicative post-subsidy cost* |
| 3 kW system using 700W panels | Rs. 1,80,000 to Rs. 2,20,000 | Rs. 1,02,000 to Rs. 1,42,000 |
| 5 kW system using 700W panels | Rs. 2,90,000 to Rs. 3,60,000 | Rs. 2,12,000 to Rs. 2,82,000 |
Actual costs and subsidy eligibility vary by location, panel model, installer, inverter, system configuration, and applicable government rules.
Compare complete installer quotations rather than panel prices alone. Check which panel and inverter models, equipment, and installation work are included in the quoted amount.
How much do 700W solar panels cost in India?
Around 700W, panel prices can vary even when the wattage is similar. Compare the actual models below along with their technology before choosing one for your solar setup:
| Model | Wattage | Panel technology | Approx. price* |
|---|---|---|---|
| WAAREE 695Wp 132 Cells N-Type Framed Dual Glass Bifacial Solar Module | 695W | N-Type bifacial | Rs. 15,499 |
| WAAREE 700Wp M12 G2G 132 Cells TOPCon N-Type Bifacial Solar Panel | 700W | TOPCon N-Type bifacial | Rs. 15,599 |
| WAAREE 710Wp DCR 132 Cells G12R N-Type Framed Dual Glass Bifacial Solar Module | 710W | N-Type bifacial DCR | Rs. 21,399 |
Disclaimer: Each model’s features, availability, and pricing are subject to change and may vary. For the most accurate and up-to-date information, please visit the official website.
What are my financing options to buy solar panels?
If the system you need costs more than you want to pay upfront, Bajaj Finance Solar Finance can help you spread the purchase cost over monthly instalments.
| Financing option | Financing amount | Tenure | Key features |
| Bajaj Finance Solar Finance | Up to Rs. 5,00,000 | 3 to 60 months | Quick loan approval, basic KYC documents, and financing for eligible solar panels and complete solar system purchases |
How do I buy solar panels on EMI at a Bajaj Finance partner store?
Once you have estimated your electricity consumption and available installation space, you can choose a suitable solar system and financing option with ease.
- Compare solar panel options: Review different systems based on capacity, panel technology, efficiency, expected power generation, warranty coverage, and installation requirements.
- Visit a partner store: Explore eligible solar panels and solar solutions available at a Bajaj Finance partner store and discuss system suitability for your property.
- Choose Solar Finance: Select Bajaj Finance Solar Finance and review the available repayment tenures to find an option that fits your budget.
- Check your eligibility: Enter your mobile number and verify it with an OTP to check your eligible financing amount before proceeding.
- Complete your purchase: Finalise the solar system, complete the required documentation, and use the approved financing amount towards the purchase and installation of the eligible system.
Solar panels are available in different capacities and technologies to suit a variety of residential and commercial energy needs. Compare efficiency, warranty coverage, and overall system costs before deciding. With Bajaj Finance Solar Finance, you can spread the cost into convenient monthly instalments.