7kW On-Grid Solar System Hyderabad

The Perfect Mid-Size Solution for Modern Indian Homes

Are you watching your monthly electricity bill cross ₹4,000-6,000 every single month? Do you run 1-2 air conditioners during Hyderabad’s scorching summers and find your TSSPDCL or TSNPDCL bills spiking to ₹8,000+ during peak months? You’re experiencing what hundreds of thousands of Hyderabad homeowners face—the relentless burden of rising electricity tariffs eating into your monthly budget.

A 7kW on-grid solar system is the goldilocks solution—not too small, not too large, but just right for most 3BHK homes and small villas in Hyderabad. This powerhouse generates 28-32 units of clean electricity daily, enough to run your air conditioners guilt-free, power all your appliances simultaneously, and slash your electricity bills by 70-85%. With Hyderabad’s exceptional solar irradiance averaging 5.5 kWh/m²/day and 280+ sunny days annually, your rooftop becomes a reliable income-generating asset that pays you back month after month.

This isn’t just another expense—it’s a strategic investment that delivers 400-500% returns over 25 years. In this comprehensive guide, you’ll discover exactly what a 7kW on-grid solar system costs in Hyderabad (₹3.62-4.62 lakh after subsidy), how much you’ll actually save (₹85,000-1,10,000 annually), the best components for local climate conditions, real ROI calculations, and how to navigate TSSPDCL/TSNPDCL net metering approvals seamlessly.

Whether you’re in Banjara Hills, Kondapur, Miyapur, or anywhere across Telangana, this guide will help you make the smartest energy decision for your family.

Estimated System Cost: ₹3,62,000 – ₹4,62,000 (After ₹78,000 Subsidy)

[Get 3 Free Quotes from Verified Hyderabad Installers]

System Specifications: 7kW On-Grid Solar System Hyderabad

Component	Specification
System Capacity	7kW (7,000 Watts)
Solar Panels	19-22 panels (330-370W each)
Inverter Type	7kW String Inverter (On-Grid)
Mounting Structure	Hot-dip galvanized, wind-load rated
Rooftop Space Required	550-700 sq ft (shadow-free)
Daily Generation (Average)	28-32 kWh/day
Monthly Generation	840-1,000 units/month
Annual Generation	10,080-12,000 units/year
PM Surya Ghar Subsidy	₹78,000 (Fixed for 3kW+)
Payback Period	4-5 years
System Lifespan	25+ years
Net Metering Eligibility	Yes (TSSPDCL/TSNPDCL)

Why This Matters: In Hyderabad’s climate with 5.5 peak sun hours daily, a 7kW system generates enough power to offset ₹7,000-10,000 monthly bills. That’s ₹84,000 to ₹1,20,000 in annual savings—your investment pays for itself in just 4-5 years.

[Insert Image: 7kW solar panel array installed on 3BHK Hyderabad home rooftop]

Complete Price Breakdown: 7kW On-Grid Solar System Hyderabad (2025)

Understanding every rupee of your investment ensures you get maximum value. Here’s the transparent, component-wise cost structure for a quality 7kW on-grid solar system in Hyderabad:

Item	Cost Range (₹)	Notes
Solar Panels (7kW)	₹1,54,000 – ₹1,96,000	Mono PERC/N-Type, ALMM-listed
7kW String Inverter	₹56,000 – ₹84,000	On-grid, 97-98% efficiency
Mounting Structure	₹42,000 – ₹56,000	Wind-rated, corrosion-resistant
Cables & Wiring (DC/AC)	₹24,500 – ₹31,500	UV-resistant, ISI-marked
Installation & Labor	₹35,000 – ₹49,000	Includes rooftop prep, safety
Net Metering Setup	₹8,400 – ₹12,600	Bi-directional meter, DISCOM fees
MCB, Junction Boxes, LA	₹12,600 – ₹17,500	Protection equipment
Earthing & Commissioning	₹10,500 – ₹14,000	As per CEA standards
TOTAL (Before Subsidy)	₹4,40,000 – ₹5,40,000	Complete turnkey installation
PM Surya Ghar Subsidy	-₹78,000	Maximum for systems above 3kW
FINAL COST	₹3,62,000 – ₹4,62,000	After government subsidy

Important Note on Subsidy for 7kW Systems

Under the PM Surya Ghar Muft Bijli Yojana, residential consumers receive Central Financial Assistance (CFA) capped at ₹78,000. The subsidy structure is:

Up to 2kW: ₹30,000 per kW (60% of benchmark cost) = ₹60,000
2-3kW (Additional 1kW): ₹18,000 (40% of benchmark cost)
Total Maximum Subsidy: ₹78,000 (capped at 3kW capacity)

For a 7kW system, you receive the maximum ₹78,000 subsidy—the same amount as a 3kW, 5kW, or 10kW system. While systems above 3kW get partial subsidy coverage, you benefit from economies of scale with lower per-kW costs on larger installations.

[Add Data Source: https://pmsuryaghar.gov.in – PM Surya Ghar Official Portal]

[Insert Infographic: Visual pie chart showing cost breakdown with subsidy impact]

Best Solar Panels for 7kW On-Grid Solar System Hyderabad

Selecting panels optimized for Hyderabad’s climate—intense summer heat (40°C+), moderate monsoon humidity, and excellent year-round irradiance—is critical for 25-year performance. Here are the top options:

Premium Tier (Highest Efficiency)

Waaree Energies WS-535 (Mono Bifacial)

Price: ₹8,800-9,200/panel | Panels Needed: 13-14 panels
Efficiency: 21.2% | Temperature Coefficient: -0.37%/°C
Why Choose: India’s largest manufacturer, exceptional bifacial gain on white rooftops, 27-year warranty
Hyderabad Advantage: Performs exceptionally in high-heat conditions with minimal degradation

Adani Solar A-Series (N-Type TOPCon)

Price: ₹9,500-10,200/panel | Panels Needed: 13 panels (540W)
Efficiency: 22.1% | Temperature Coefficient: -0.29%/°C
Why Choose: Next-gen TOPCon technology, superior low-light performance during monsoons
Hyderabad Advantage: Maintains higher efficiency during cloudy days

Tata Power Solar (Mono PERC 500W)

Price: ₹8,500-9,000/panel | Panels Needed: 14 panels
Efficiency: 20.8% | Temperature Coefficient: -0.38%/°C
Why Choose: Trusted brand, extensive Telangana service network
Hyderabad Advantage: Local service centers ensure quick warranty claims

Mid-Range (Best Value)

Luminous L-Series (Mono PERC Half-Cut 475W)

Price: ₹7,800-8,200/panel | Panels Needed: 15 panels
Efficiency: 19.8% | Temperature Coefficient: -0.40%/°C
Why Choose: Half-cut cells reduce hot-spot effects, proven reliability
Best For: Budget-conscious buyers wanting quality performance

Vikram Solar Eldora (Mono PERC 455W)

Price: ₹7,500-8,000/panel | Panels Needed: 16 panels
Efficiency: 19.5% | Temperature Coefficient: -0.41%/°C
Why Choose: Strong South Indian presence, good warranty support
Best For: Value-focused installations seeking Indian manufacturing

Budget Tier (Entry-Level Quality)

Renewsys (Mono PERC 435W)

Price: ₹6,800-7,200/panel | Panels Needed: 17 panels
Efficiency: 18.7% | Temperature Coefficient: -0.42%/°C
Why Choose: Most affordable ALMM-listed option
Best For: Tight budgets while maintaining subsidy eligibility

Critical Selection Criteria for Hyderabad

Temperature Coefficient: Hyderabad rooftops reach 65-70°C in summer. A panel with -0.37%/°C vs -0.42%/°C saves 12-15 units monthly in peak summer.
ALMM Listing: Mandatory for ₹78,000 subsidy. All recommended panels are ALMM-approved as of December 2025.
PID Resistance: Monsoon humidity (70-80%) requires PID-resistant panels. Premium options include anti-PID coating.
Wind Load Rating: Must withstand 60-80 km/h storm winds. Look for IEC 61215 with 2,400 Pa certification.
Local Service: Brands with Hyderabad presence (Waaree, Tata, Luminous) offer faster response for issues.

[Compare All Solar Panel Brands]

[Insert Image: Comparison showing Mono PERC vs Bifacial panel performance in Hyderabad conditions]

Best Inverters for 7kW On-Grid Solar System Hyderabad

Your inverter manages DC-to-AC conversion and grid synchronization—choosing the right one ensures maximum generation and longevity. Here are proven performers:

Premium String Inverters

SolarEdge SE7K-INS (HD-Wave Technology)

Price: ₹73,500-80,500
Efficiency: 97.6% (weighted) | Max: 99%
Key Features:
- Module-level SafeDC™ shutdown
- Advanced monitoring via app
- 12-year standard warranty (extendable to 25 years)
- Excellent partial shading tolerance
Best For: Tech-savvy homes wanting maximum safety and real-time control

Fronius Symo 7.0-3 (Austrian Engineering)

Price: ₹70,000-77,000
Efficiency: 98.1% (peak) | Weighted: 97.9%
Key Features:
- Integrated Wi-Fi/Ethernet monitoring
- Dynamic peak manager for grid stability
- IP65 outdoor rating
- 5-year warranty (extendable to 20 years)
Best For: Premium installations wanting maximum efficiency

SMA Sunny Tripower 7000TL (German Quality)

Price: ₹66,500-73,500
Efficiency: 98.4% (max) | Weighted: 98.1%
Key Features:
- OptiCool active cooling for hot climates
- Integrated DC surge protection
- 5-year warranty (extendable to 25 years)
Best For: Performance-focused setups

Mid-Range (Value Leaders)

Delta Solivia RPI M7A

Price: ₹52,500-59,500
Efficiency: 97.6% (weighted)
Key Features:
- Wide MPPT voltage range
- Fanless natural cooling (reliable in dusty areas)
- 5-year warranty
Best For: Reliable performance at competitive pricing

Growatt MAC 7KTL3-X

Price: ₹49,000-56,000
Efficiency: 97.4% (weighted)
Key Features:
- Dual MPPT for different roof orientations
- Smart diagnostics
- WiFi monitoring included
Best For: Multi-orientation arrays

Solis 7K-5G

Price: ₹47,600-52,500
Efficiency: 97.3% (weighted)
Key Features:
- Dual MPPT with 99.9% tracking efficiency
- Wide operating temp (-25°C to 60°C)
- Natural convection cooling
Best For: Budget-conscious quality seekers

Indian Premium Options

Luminous Solar NXI 7kW

Price: ₹59,500-66,500
Efficiency: 97.5% (weighted)
Key Features:
- Largest Indian solar inverter brand
- 20+ service centers in Telangana
- Integrated WiFi monitoring
- 5-year warranty with easy claims
Best For: Local support and peace of mind

Tata Power Solar Inverter 7kW

Price: ₹63,000-70,000
Efficiency: 97.3% (weighted)
Key Features:
- Tata brand reliability
- Multiple Hyderabad service locations
- CEA grid-code compliant
Best For: Brand-conscious buyers

Selection Criteria for Hyderabad

Efficiency Above 97%: Even 1% efficiency loss means losing 350+ units annually on a 7kW system.
Operating Temperature Range: Choose inverters rated to 60°C+ for Hyderabad’s 50-60°C ambient summer conditions.
Dual MPPT: Essential if panels span East-West roofs or multiple roof sections.
Grid Compliance: CEA 2019 compliance ensures smooth TSSPDCL/TSNPDCL approval.
Service Network: International brands have authorized centers; Indian brands offer faster response.

[Compare All Inverter Brands]

[Insert Image: Inverter installation showing proper ventilation in Hyderabad climate]

Verified Solar Installers in Hyderabad

Selecting an experienced, reliable installer is as crucial as component quality. Here’s how to connect with verified solar EPCs:

How to Get Competitive Quotes

Rather than listing installers that may become outdated, we recommend:

[Get 3 Free Quotes from Verified Installers] ← Access our installer network

Our platform connects you with:

MNRE-empanelled installers registered on PM Surya Ghar portal
TSSPDCL/TSNPDCL-approved vendors for seamless net metering
Minimum 50+ Hyderabad projects completed
4.5+ star ratings from verified customers
Comprehensive warranties: 25-year panel, 5-10 year inverter, 5-year workmanship

What to Evaluate in Installers

1. DISCOM Experience

Track record with TSSPDCL/TSNPDCL net metering?
Complete documentation support?

2. Component Quality

ALMM-listed, MNRE-approved components?
Multiple brand options or single-brand push?

3. Workmanship Warranty

Standard is 5 years for installation quality
Who handles claims—installer or manufacturer?

4. Post-Installation Support

Annual maintenance contracts available?
Response time for issues?

5. Subsidy Assistance

Complete subsidy documentation support?
Success rate with subsidy disbursement?

6. Payment Terms

Typical: 30% advance, 40% at installation, 30% post-commissioning
Avoid 100% advance demands

Typical Project Timeline in Hyderabad

Site Survey: 1-2 days
Proposal & Approval: 3-5 days
Net Metering Application: Submit to TSSPDCL/TSNPDCL with ₹2,500 fee
Feasibility Approval: 7-10 days
Installation: 1-2 days for 7kW system
Testing & Inspection: 1 day
DISCOM Commissioning: 7-15 days
Subsidy Disbursement: 30-60 days post-commissioning

Total Timeline: 4-7 weeks from contract to operational system

[Get Quotes from Verified Installers in Your Area]

[Insert Image: Professional installation team on Hyderabad rooftop with safety equipment]

ROI Calculator: Your Actual Savings in Hyderabad

Let’s calculate real numbers based on typical Hyderabad consumption and TSSPDCL/TSNPDCL tariffs.

Sample Scenario: 3BHK Flat in Kukatpally

Current Monthly Bill: ₹6,500 Current Monthly Consumption: 850 units TSSPDCL Tariff Bracket: ₹7.50-9.10/unit (weighted average ₹7.65/unit)

7kW Solar System Performance:

Daily Generation: 29 units (conservative, 5.2 peak sun hours)
Monthly Generation: 870 units
System Covers: 100% of consumption + 20 units surplus

Financial Analysis

Year 1 Savings:

Units Consumed from Solar: 850 units × ₹7.65 = ₹6,502/month
Annual Bill Savings: ₹78,024
Surplus Exported: 20 units × ₹3.50 (feed-in) = ₹70/month = ₹840/year
Total Year 1 Benefit: ₹78,864

System Cost After Subsidy: ₹4,10,000 (average)

Payback Period: 5.2 years

25-Year Lifetime Savings:

Years 1-10: ₹7,88,640 (assuming 5% annual tariff increase)
Years 11-25: ₹16,34,720 (considering 0.5%/year degradation)
Total Lifetime Savings: ₹24,23,360
Minus System Cost: -₹4,10,000
Net Profit: ₹20,13,360

Interactive Calculator

[Embedded ROI Calculator]

Your Details:

Current Monthly Bill: [₹______]
System Size: [7kW] (auto-filled)
Location: [Hyderabad] (auto-filled)
DISCOM: [Select: TSSPDCL / TSNPDCL]

[Calculate My Exact Savings]

Real Tariff Impact (TSSPDCL/TSNPDCL 2025)

Hyderabad’s slab-based tariffs:

0-50 units: ₹1.90/unit
51-100 units: ₹3.00/unit
101-200 units: ₹4.80/unit
201-300 units: ₹6.60/unit
301-400 units: ₹7.75/unit
401-800 units: ₹9.10/unit
Above 800 units: ₹10.00/unit

Critical Insight: If you’re consuming 700-900 units monthly, you’re in the ₹9.10/unit bracket. Solar costs effectively ₹4-5 per unit over 25 years—a 50% reduction even without factoring tariff hikes.

[Insert Infographic: ROI curve showing breakeven point and cumulative savings over 25 years]

[Add Data Source: TSSPDCL Tariff Order 2024-25]

Net Metering in Hyderabad: Complete Process Guide

Net metering transforms your 7kW system into a financial powerhouse by allowing surplus export and credit accumulation.

Hyderabad’s Two DISCOMs

TSSPDCL (Telangana Southern Power Distribution Company Limited)

Covers: Hyderabad, Rangareddy, Medchal-Malkajgiri, Vikarabad, Sangareddy (partial)
Website: www.tssouthernpower.com
Net Metering Fee: ₹2,500

TSNPDCL (Telangana Northern Power Distribution Company Limited)

Covers: Other Telangana districts
Website: www.tsnpdcl.in
Net Metering Fee: ₹2,500

Net Metering Regulations (TGERC 2025)

Under TGERC (Net Metering Rooftop Solar PV Grid Interactive Systems) Regulation 2025:

Capacity Limits:

Minimum: 1 kWp
Maximum (Residential): 500 kWp
Your 7kW System: Well within limits ✓

Key Benefits:

Gross Metering: Bi-directional meter tracks import/export separately
Settlement Period: Annual (April-March)
Export Credit Rate: Typically 50-60% of retail tariff per TGERC
No Wheeling Charges: For systems up to sanctioned load
No Cross-Subsidy: Residential exempted

Step-by-Step Net Metering Application

Step 1: Online Registration

Visit TSSPDCL/TSNPDCL website
Download Application Form (Annexure-I)

Step 2: Document Preparation

Latest electricity bill
DD for ₹2,500 (DISCOM name)
Two self-addressed ₹5 stamped envelopes
Property ownership proof
Aadhar card copy

Step 3: Submission

Submit at Consumer Service Center
Or upload via DISCOM portal
Receive registration number

Step 4: Feasibility Study

DISCOM site assessment (7-10 days)
Transformer capacity check
Feasibility approval issued

Step 5: Installation

Proceed after feasibility clearance
CEA 2019 Grid Code compliance mandatory
Installer submits work completion

Step 6: Inspection & Commissioning

DISCOM technical inspection
Grid synchronization testing
Bi-directional meter installation

Step 7: Agreement Execution

₹200 Non-Judicial Stamp Paper
Agreement format from DISCOM website
Valid for system lifespan

Step 8: System Activation

Commissioning certificate issued
System goes live
Monthly billing shows net consumption

Important Requirements for 7kW Systems

Safety Equipment:

MCB, isolation switch, lightning arrestor
Anti-islanding protection in inverter
IS/IEC standards compliance

Typical Costs:

Application Fee: ₹2,500
Bi-directional Meter: ₹8,000-12,000 (some installers include)
Stamp Paper: ₹200

[Download: TSSPDCL Net Metering Application Form] [Download: TSNPDCL Net Metering Guidelines]

[Insert Image: Bi-directional meter showing import/export readings]

Hyderabad’s Solar Advantage: Climate & Generation Data

Why Hyderabad ranks among India’s top solar cities:

Solar Irradiance Profile

Average Daily Irradiance: 5.5 kWh/m²/day (annual average)

Monthly Breakdown:

January-February: 5.0-5.2 kWh/m²/day
March-May (Summer): 6.0-6.5 kWh/m²/day (Peak!)
June-August (Monsoon): 4.5-5.0 kWh/m²/day
September-October: 5.5-5.8 kWh/m²/day
November-December: 5.2-5.5 kWh/m²/day

Sunny Days: 280-300 annually

Temperature Considerations

Summer (March-June):

Ambient: 38-42°C
Rooftop Module Temp: 60-70°C
Impact: -10 to -15% from STC ratings
Mitigation: N-Type panels with superior temp coefficients

Monsoon (July-September):

Humidity: 70-80%
Cloudy days: 20-25 per season
Impact: 15-20% generation reduction
Mitigation: Panels with good diffused-light performance

Winter (December-February):

Optimal temperatures for peak efficiency
Clear skies, low humidity
Best performance months

Real 7kW System Output in Hyderabad

Conservative Calculation:

System Size: 7 kW
Peak Sun Hours: 5.2 hours (annual average)
System Losses: 20% (soiling, cables, inverter, temperature)
Daily Generation: 7 kW × 5.2 hours × 0.80 = 29.1 units/day

Optimistic Calculation (Premium components, regular cleaning):

System Losses: 15%
Daily Generation: 7 kW × 5.5 hours × 0.85 = 32.7 units/day

Monthly Variation:

Best Month (April-May): 35-38 units/day = 1,050-1,140 units/month
Worst Month (July-August): 22-26 units/day = 660-780 units/month
Average: 870-980 units/month

Soiling & Maintenance in Hyderabad

Dust Accumulation Patterns:

Summer: Heavy dust from construction, traffic
Monsoon: Rain provides natural cleaning
Post-Monsoon: Dust settles quickly

Recommended Cleaning Schedule:

Summer (March-May): Every 20-25 days
Monsoon (June-September): Natural rain cleaning sufficient
Post-Monsoon (October-November): Every 30 days
Winter (December-February): Every 45-60 days

Cleaning Impact:

Dirty panels: -15 to -25% output loss
Clean panels: Full rated performance
Annual professional cleaning cost: ₹1,500-2,500

[Add Data Source: India Meteorological Department, Hyderabad Solar Data]

[Insert Chart: Month-by-month generation curve for 7kW system in Hyderabad]

Frequently Asked Questions: 7kW On-Grid Solar System Hyderabad

Can a 7kW system power my entire 3BHK flat in Hyderabad?

Absolutely. A 7kW system generating 28-32 units daily can comfortably power:

1-2 split ACs running 8-10 hours
1 refrigerator, 1 washing machine
8-10 LED lights, 4-5 fans
Water motor, geyser, microwave, TV, laptop

If your current monthly consumption is 700-900 units, a 7kW system will cover 90-100% of your needs. For homes consuming 900-1,100 units, expect 75-85% offset—still dramatically reducing bills.

The key is aligning high-consumption activities with solar hours (9 AM – 5 PM). With net metering, daytime surplus credits your account for evening use.

How much roof space do I need for a 7kW On-Grid solar system?

You’ll need 550-700 square feet of shadow-free rooftop area:

High-wattage panels (540-550W): ~550 sq ft for 13 panels
Mid-wattage panels (450-500W): ~630 sq ft for 14-15 panels
Standard panels (330-400W): ~700 sq ft for 18-21 panels

Critical: Area must be shadow-free between 9 AM-3 PM year-round. Even 10-15% shading can reduce output by 20-30%.

Most Hyderabad 3BHK flats with 1,000-1,200 sq ft total terrace area can easily accommodate 7kW after accounting for water tanks, lift rooms, and walkways.

Roof Orientation:

South-facing: Ideal (100% efficiency)
East/West-facing: 90-95% efficiency (acceptable)
North-facing: 70-75% efficiency (avoid if possible)

Will my 7kW on-grid system work during power cuts?

No, standard on-grid systems automatically shut down during grid outages for safety—mandatory under grid-tie regulations. When TSSPDCL/TSNPDCL power fails, your system stops to prevent dangerous back-feeding.

If you need backup power:

Option 1: Hybrid Solar System

Add battery storage (3-7 kWh typical)
Works as on-grid normally
Switches to battery during outages
Additional cost: ₹1,05,000-2,45,000
[Explore 7kW Hybrid Systems]

Option 2: Separate Inverter Battery

Keep on-grid system
Install independent home UPS + battery
Less efficient but lower cost

For most Hyderabad homes where grid reliability exceeds 95%, pure on-grid offers best economics. Invest savings in quality components rather than batteries.

What maintenance costs should I expect?

7kW systems are remarkably low-maintenance:

Year 1-5:

Panel cleaning: ₹1,750-2,450/year (6-8 sessions)
Annual system check: ₹1,050-1,400
Total Annual: ₹2,800-3,850

Year 6-10:

Same cleaning schedule
Inverter warranty covers failures
Possible connector tightening: ₹700-1,050 (one-time)
Total Annual: ₹2,800-4,200

Year 11-15:

Inverter replacement: ₹49,000-70,000 (one-time, year 10-12)
Panel cleaning continues

Year 16-25:

Panels still at 80-85% capacity
Second inverter replacement (year 20-22)

Lifetime Maintenance Budget: ₹1,40,000-1,75,000 over 25 years Average Annual: ₹5,600-7,000

Compare to ₹78,000/year in electricity savings—maintenance is just 7-9% of savings.

How long for subsidy disbursement after installation?

Based on PM Surya Ghar implementation in Hyderabad:

Timeline:

Installation completion: Day 0
Submit application with commissioning certificate: Day 1-3
DISCOM verification (TSSPDCL/TSNPDCL): 7-15 days
MNRE approval & processing: 15-30 days
Direct Benefit Transfer to bank: 30-60 days total

Current Reality (December 2025):

Fast-track cases: 30-45 days
Average cases: 45-75 days
Delayed cases (doc issues): 90-120 days

Tips for Faster Subsidy:

Ensure MNRE-empanelled installer
All components ALMM-listed
Keep original bills, invoices, photos
BIS-certified inverter mandatory
Accurate application (rejections delay 30+ days)

The ₹78,000 subsidy is directly credited to your bank—not to installer. Most installers require full payment upfront; you claim subsidy separately.

Is my rooftop strong enough for a 7kW solar system?

A 7kW system with mounting weighs approximately 420-525 kg total—about 60-75 kg per 100 sq ft.

For Hyderabad Buildings:

RCC Roofs (Most Common):

Load capacity: 200-300 kg/sq meter
7kW system load: 60-75 kg/sq meter
Verdict: Absolutely safe ✓

Asbestos/Metal Sheet Roofs:

Requires lightweight mounting
Feasible with structural support
Engineer assessment recommended

Old Buildings (20+ years):

Structural assessment suggested (₹2,100-3,500)
Most pass easily
If reinforcement needed: ₹10,500-17,500

Wind Load: Quality mounting handles:

Wind speed: 150 km/h (well above Hyderabad’s typical 60-80 km/h)
Uplift resistance: 2,400 Pa
Anchoring: Expansion bolts into RCC

Installer should provide IS 875 compliance certificate.

Can I expand later if I buy an electric vehicle?

Yes, with considerations:

Net Metering Limit: Your agreement allows capacity up to sanctioned load. If sanctioned load is 4 kW and you have 7 kW solar (1.75x multiplier, allowed under TGERC), expansion requires:

Load enhancement application to TSSPDCL/TSNPDCL
Pay load enhancement charges
Modify net metering agreement (₹350-700 fee)

EV Charging Requirements:

Typical EV (Nexon EV): 30 kWh battery
Daily charging (40 km driving): 4-5 kWh
Your 7kW system generating 29 units can easily handle this

Better Approach: Optimize charging timing:

Charge during solar hours (10 AM – 3 PM)
7kW system can charge EV + run home loads simultaneously
Surplus goes to EV instead of export

For most single-EV households, 7kW is sufficient. Expand to 10kW only if:

2+ EVs planned
Daily driving exceeds 80 km combined
Want faster charging

[Internal Link: 10kW Solar System Hyderabad]

What happens to excess electricity I generate?

Under TSSPDCL/TSNPDCL net metering:

Monthly Settlement:

Bi-directional meter tracks import/export separately
Monthly bill: Units Consumed – Units Exported = Net Units
Pay only for net units

Example Month:

Solar generated: 900 units
Home consumed: 850 units
Surplus exported: 50 units
Grid imported (nights): 100 units
Net consumption: 100 – 50 = 50 units
Bill: ~₹380 (50 units + fixed charges)

Annual Reconciliation (April-March):

Annual surplus credits purchased by DISCOM
Rate: ₹3.00-4.50/unit (vs. ₹7-10 you save)
Credits expire at year end

Maximize Value: Self-consume during solar hours:

Run washing machine, dishwasher midday
Charge devices during peak sun
Pre-cool home with AC before evening
Heat water during solar hours

Target: 85-90% self-consumption for optimal ROI.

Are there tax benefits or additional incentives?

Central Government:

✓ PM Surya Ghar Subsidy: ₹78,000
✗ Income Tax Deduction: Section 80EEB expired March 2024
✗ GST Exemption: 5% GST applicable (reduced from 12%)

State (Telangana):

✓ No Electricity Duty: On solar self-consumption
✓ Net Metering: Free (no wheeling/banking charges)
✗ Additional State Subsidy: Not currently available for residential

Indirect Benefits:

Property Value: Solar homes command 3-5% premium
Faster Resale: Energy-efficient homes sell 15-20% faster
Insurance: Some insurers offer 2-5% home insurance discount

For Commercial Properties:

Accelerated depreciation: 40%
GST Input Credit: Claimable

Consult CA for specific tax situation.

Making Your Decision: Is 7kW Right for You?

A 7kW on-grid solar system is ideal if:

✓ Your monthly consumption is 700-1,000 units ✓ Your monthly bill is ₹5,000-8,000 ✓ You have 550-700 sq ft shadow-free rooftop ✓ You plan to stay 5+ years (for full ROI) ✓ You want energy independence and locked electricity costs for 25 years ✓ You’re a 3BHK household with 1-2 ACs

Consider a Smaller System (5kW) If:

Monthly consumption: 500-700 units
Limited rooftop: 400-550 sq ft
Tighter budget: ₹2.8-3.5 lakh after subsidy
[Internal Link: 5kW Solar System Hyderabad]

Consider a Larger System (10kW) If:

Monthly consumption: 1,000-1,500 units
Large villa or 4BHK home
Multiple ACs or high-power appliances
[Internal Link: 10kW Solar System Hyderabad]

Consider Hybrid Instead If:

Frequent power cuts
Critical backup needs (medical equipment, home office)
Budget for extra ₹1-2.5 lakh for batteries
[Internal Link: 7kW Hybrid Solar System Hyderabad]

Next Steps: Your Solar Journey Starts Here

Installing a 7kW solar system is a transformative investment. Here’s your action plan:

Step 1: Verify Your Roof

Measure shadow-free area (9 AM – 3 PM)
Check orientation (South/East/West preferred)
Note obstructions (tanks, lift rooms, trees)

Step 2: Analyze Consumption

Gather 12 months’ electricity bills
Calculate average monthly units
Identify peak months

Step 3: Get Multiple Quotes

Minimum 3 quotes from different installers
Compare brands, warranties, workmanship
Verify MNRE empanelment

Step 4: Verify Subsidy Eligibility

Confirm installer PM Surya Ghar registration
All components ALMM-listed
Understand disbursement timeline

Step 5: Plan Financing

Solar loans: 9-12% interest typical
Compare loan vs. self-funding ROI

Step 6: Understand Net Metering

Know your DISCOM (TSSPDCL/TSNPDCL)
Installer handles complete process
Keep documents ready

Step 7: Schedule Installation

Best timing: October-February (less rain, moderate temps)
Plan for 1-2 day installation
Ensure household access

Get Your Free Customized Quote

Stop paying ₹5,000-8,000 monthly to TSSPDCL/TSNPDCL when you could produce your own clean electricity for 25 years.

A 7kW on-grid solar system isn’t just eco-friendly—it’s the smartest financial move for your home, delivering 400-500% returns over its lifetime.

[Get 3 Free Quotes from Verified Hyderabad Solar Installers]