Solar for Homes | 5kW Rooftop Solar Power by USL
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Contact usOur Install Solutions for Every Roof
Max Power Mounting with Optimal Height Columns on RC-Roof
For bifacial solar panels, USL team typically install them 1 to 1.5 meters (3.3 to 5 feet) above the ground or roof. A standard baseline height of 42.5 inches (about 1.1 meters). It allows sufficient clearance for reflected light to reach the back of the panels.
Space Saver Mounting with Elevated Height Columns on RC-Roof
Dual Use directly underneath the array while the panels create beneficial shade while generating power for limited space terrace houses.
At 2+ meters, unrestricted convective airflow cools the rear side of the module, resulting in higher overall energy yields in hot climates. Lighter surfaces (white paint on floor concrete, tiles) increase bifacial gains, making the mounting height highly impactful
Sheet/Tile Roof Mount
USL roof mount structure provides better resistance to high winds, extreme temperatures, and mechanical stress while reducing degradation over time.
Bifacial panels rely on surface reflection. A light-colored or bright metallic sheet roof acts as a giant mirror, reflecting ambient and direct sunlight onto the backside of the panels.
Who Should Choose 5kW?
- 5kW solar system costs ₹2,50,000–₹3,20,000 before subsidy and ₹1,72,000–₹2,42,000 after PM Surya Ghar subsidy of ₹78,000.
- It generates 20–25 units per day — built for large homes with AC, geysers, and heavy appliance usage. Ideal for 3+ BHK homes with monthly electricity bills of ₹3,500–₹6,000.
- Requires ~400 sq ft of roof space.
Space and Installation
- Panels: 9 × 540W~555W panels
- Roof area: ~400 sq ft (shadow-free)
- Weight: ~150–200 kg total
- Installation time: 1–2 days
- 400 sq ft is available on most independent house terraces but tight for apartments. If space is limited, use higher-wattage panels (580–600W) to reduce panel count, or bifacial panels for extra output from reflected light.
Subsidy and Payback Period
Subsidy remains capped at ₹78,000 (same as 3kW). The financial case for 5kW rests on higher absolute savings, not better subsidy coverage:
| Tariff | Net Cost | Annual Savings | Payback |
|---|---|---|---|
| ₹5/unit | ₹2,07,000 | ₹37,500 | ~5.5 years |
| ₹7/unit | ₹2,07,000 | ₹52,500 | ~3.9 years |
| ₹10/unit | ₹2,07,000 | ₹75,000 | ~2.8 years |
Homes in higher tariff slabs (₹8–₹12/unit) — see the strongest returns because solar offsets the most expensive units first.
5kW Solar System Price Breakdown
| Component | Cost Range |
|---|---|
| Solar panels (9 × 540W~555W) | ₹85,000–₹1,10,000 |
| On-grid inverter (5kW) | ₹35,000–₹50,000 |
| Mounting structure | ₹15,000–₹22,000 |
| Wiring, protection, earthing | ₹10,000–₹14,000 |
| Installation labour | ₹8,000–₹12,000 |
| Net metering & DISCOM fees | ₹3,000–₹6,000 |
| GST (8.9%) | ₹27,000–₹35,000 |
| Total (before subsidy) | ₹2,50,000–₹3,20,000 |
| PM Surya Ghar subsidy | −₹78,000 |
| Net cost (after subsidy) | ₹1,72,000–₹2,42,000 |
Note: Subsidy remains capped at ₹78,000 (same as 3kW). The extra 2kW beyond 3kW is fully at your cost. Despite this, 5kW is worth it if your consumption justifies it.
Daily and Monthly Output
| Period | Output | Bill Savings (at ₹6–₹10/unit) |
|---|---|---|
| Per day | 20–25 units | ₹120–₹250 |
| Per month | 600–750 units | ₹3,600–₹7,500 |
| Per year | 7,300–9,125 units | ₹43,800–₹91,250 |
A 5kW system comfortably offsets electricity bills of ₹3,500–₹7,000/month. In many cases, your net bill drops to just the fixed charges.
What Can a 5kW System Run?
5kW is the entry point for homes with regular AC usage:
| Appliance | Wattage | Hours/day | Daily Units |
|---|---|---|---|
| LED lights (12) | 120W | 6 | 0.7 |
| Ceiling fans (5) | 350W | 10 | 3.5 |
| Refrigerator (300L) | 200W | 8 | 1.6 |
| Inverter AC 1.5 ton | 1,200W | 6 | 7.2 |
| TV (55") | 120W | 5 | 0.6 |
| Washing machine | 500W | 1 | 0.5 |
| Geyser (instant, 3kW) | 3,000W | 0.3 | 0.9 |
| WiFi + laptops + phones | 150W | 10 | 1.5 |
| Kitchen (mixer, microwave) | 1,000W | 0.5 | 0.5 |
| Total | 17 units |
This leaves 3–8 units of daily surplus. A 5kW system runs 1 AC for 6+ hours daily alongside full household loads. For 2+ ACs or EV charging, consider 10kW.
5kW vs Other Sizes: Should You Go Bigger?
|
2kW |
3kW |
5kW |
|
|
Cost after subsidy |
₹50K–₹80K |
₹72K–₹1.12L |
₹1.72L–₹2.42L |
|
Daily output |
8–10 units |
12–15 units |
20–25 units |
|
Runs AC? |
No |
Limited (3–4 hrs) |
Yes (6–8 hrs) |
|
Bill range |
₹1K–₹2K |
₹2K–₹3.5K |
₹3.5K–₹6K |
|
Subsidy |
₹60,000 |
₹78,000 |
₹78,000 |
Rule of thumb: If your monthly bill is under ₹2,000, 2kW is the sweet spot. If it is ₹2,000–₹3,500, the extra ₹20,000–₹30,000 for 3kW is worth it because of the additional subsidy kW at ₹18,000/kW.
More Details" Excellent Work by the team from start to finish. Extremely Happy "
" Excellent Work by the team from start to finish. Extremely Happy "
" Prompt Service & Subsidy Credited. "
" Site Survey to Subsidy, all works done by USL-Team. "
Get Smart, Start Saving Your Electric Bills Today
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