Solar for Homes | 2kW 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 2kW?
- 2 BHK homes without AC or with minimal AC use
- Monthly bills of ₹1,000–₹2,000
- Budget-conscious buyers who want strong subsidy coverage (~50% of cost)
- Small families (2–3 members) with standard appliance usage
- Apartment flat owners with ~200 sq ft of rooftop allocation
Space and Installation
- Panels: 4 × 540W~555W Bifacial panels
- Roof area: ~200 sq ft (shadow-free, includes spacing)
- Weight: ~60–80 kg total
- Installation time: 1 day for most roofs
- Orientation: South-facing at 10–15° tilt (optimal for India)
A 2kW system fits comfortably on most independent house terraces. For apartments, you need ~200 sq ft of allocated space
Subsidy and Payback Period
2kW hits the sweet spot for subsidy — it gets the highest per-kW rate under PM Surya Ghar:
- Subsidy: ₹30,000/kW × 2kW = ₹60,000
- Effective subsidy coverage: 43–55% of system cost
Payback calculation:
| Tariff | Net Cost | Annual Savings | Payback |
|---|---|---|---|
| ₹5/unit | ₹65,000 | ₹15,000 | ~4.3 years |
| ₹7/unit | ₹65,000 | ₹21,000 | ~3.1 years |
| ₹10/unit | ₹65,000 | ₹30,000 | ~2.2 years |
The 2kW system offers arguably the best payback of any size because of the maximum subsidy rate.
2kW Solar System Price Breakdown
| Component | Cost Range |
|---|---|
| Solar panels (4 × 540W~555W) | ₹36,000–₹48,000 |
| On-grid inverter (2kW) | ₹20,000–₹28,000 |
| Mounting structure | ₹8,000–₹12,000 |
| Wiring, protection, earthing | ₹6,000–₹8,000 |
| Installation labour | ₹5,000–₹8,000 |
| Net metering & DISCOM fees | ₹2,000–₹5,000 |
| GST (8.9%) | ₹12,000–₹16,000 |
| Total (before subsidy) | ₹1,10,000–₹1,40,000 |
| PM Surya Ghar subsidy | −₹60,000 |
| Net cost (after subsidy) | ₹50,000–₹80,000 |
The 2kW tier gets the maximum per-kW subsidy rate (₹30,000/kW × 2 = ₹60,000), making it one of the best value-for-money sizes.
Daily and Monthly Output
| Period | Output | Bill Savings (at ₹6–₹10/unit) |
|---|---|---|
| Per day | 8–10 units | ₹48–₹100 |
| Per month | 240–300 units | ₹1,440–₹3,000 |
| Per year | 2,900–3,600 units | ₹17,400–₹36,000 |
A 2kW system typically offsets 60–80% of a 2 BHK household's electricity consumption — enough for fans, lights, TV, refrigerator, and small kitchen appliances but not enough for regular AC usage.
What Can a 2kW System Run?
A 2kW system handles moderate household loads comfortably:
| Appliance | Wattage | Hours/day | Daily Units |
|---|---|---|---|
| LED lights (8) | 80W | 6 | 0.5 |
| Ceiling fans (3) | 210W | 10 | 2.1 |
| Refrigerator (190L) | 150W | 8 (compressor) | 1.2 |
| TV (LED 42") | 80W | 5 | 0.4 |
| WiFi router | 15W | 24 | 0.4 |
| Washing machine | 500W | 1 | 0.5 |
| Mixer grinder | 750W | 0.3 | 0.2 |
| Mobile + laptop charging | 85W | 5 | 0.4 |
| Total | 5.7 units |
This leaves 2–4 units daily surplus for net metering credits. For AC or geyser, upgrade to 3kW or 5kW.
More Details2kW vs Other Sizes: Should You Go Bigger?
| 1kW | 2kW | 3kW | |
|---|---|---|---|
| Cost after subsidy | ₹30K–₹50K | ₹50K–₹80K | ₹72K–₹1.12L |
| Daily output | 4–5 units | 8–10 units | 12–15 units |
| Runs AC? | No | No | 1 unit, limited hours |
| Best monthly bill | ₹500–₹1,000 | ₹1,000–₹2,000 | ₹2,000–₹3,500 |
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. "
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