TAMILBTC TECHNOLOGIES Ongrid.solar is a Division of TAMILBTC TECHNOLOGIES | Claim up to ₹1,00,000 Total Subsidy!
+91 88833 35220
OnGrid Solar Logo
ONGRID.SOLAR — DIVISION OF TAMILBTC TECHNOLOGIES

Solar Solutions for Every Power Need

On-Grid • Hybrid • Off-Grid — Choose the right solar system based on your electricity requirement — not just your budget.

EB Connection? → ON-GRID
Need Backup? → HYBRID
No EB Power? → OFF-GRID
☀️ ON-GRID SOLAR Best for EB Bills

Reduce My EB Bill

For homes and businesses with an existing EB connection.

  • Solar power is used during the day
  • Excess power can be exported to the grid
  • Helps reduce electricity bills up to 90%
  • No battery required in the standard system
  • Ideal for homes with regular EB supply
Best for:
🏠 Houses • Shops • Offices • Commercial buildings
Reduce My EB Bill →
🔋 HYBRID SOLAR Best for 24×7 Power

Get Hybrid Solar Quote

For customers who need backup power along with solar savings.

  • Solar + Battery + EB Combined
  • Battery backup during power cuts
  • Solar can charge the battery automatically
  • Suitable for essential/continuous loads
  • Can reduce EB consumption while providing backup
Best for:
🏠 Homes • 🏥 Hospitals • 🏢 Offices • 🏨 Hotels • 🏭 Businesses
Get Hybrid Solar Quote →
🌞 OFF-GRID SOLAR Best for No EB Power

Design My Off-Grid System

For places where grid electricity is unavailable or unreliable.

  • Solar + Heavy Battery-based system
  • Works 100% independently from EB grid
  • Designed specifically for remote locations
  • Useful for farms, agricultural sites & isolated buildings
  • Complete energy independence
Best for:
🌾 Farms • 🏡 Remote Homes • 🏕️ Remote Sites • 🚜 Agricultural Sites
Design My Off-Grid System →
QUICK SELECTION MATRIX

Which Solar System Is Right For You?

Easier to understand than technical jargon — pick your requirement below.

Your Requirement Best Solution Action
Have EB connection & want to reduce bill ☀️ ON-GRID SOLAR Explore On-Grid →
Need solar + battery backup / 24×7 power 🔋 HYBRID SOLAR Explore Hybrid →
No EB connection / remote location 🌞 OFF-GRID SOLAR Explore Off-Grid →
Double Govt Subsidy Benefit

Tamil Nadu Solar Subsidy Guide

Homeowners in Tamil Nadu get Central PM Surya Ghar Subsidy AND Tamil Nadu State Government Subsidy directly! Helpline: +91 88833 35220.

1 kW

1 kW System Capacity

Ideal for basic domestic lighting & small appliances

PM Surya Ghar (Central): ₹30,000
Tamil Nadu Govt State Subsidy: ₹5,000
Total Combined Subsidy ₹35,000
Most Popular 2-3 BHK
2 kW

2 kW System Capacity

Generates ~2,800 to 2,900 units annually

PM Surya Ghar (Central): ₹60,000
Tamil Nadu Govt State Subsidy: ₹10,000
Total Combined Subsidy ₹70,000
3 kW+

3 kW to 10 kW Capacity

Powers ACs, motors, refrigerators & full home

PM Surya Ghar (Central): ₹78,000
Tamil Nadu Govt State Subsidy: ₹22,000
Total Combined Subsidy ₹1,00,000 (₹1 Lakh)

Need Help Applying for Tamil Nadu Solar Subsidy?

OnGrid Solar by TAMILBTC TECHNOLOGIES handles 100% portal documentation & TANGEDCO approval. Call +91 88833 35220.

+91 88833 35220
Instant Estimation Tool

Interactive Solar Savings Calculator

Select your monthly bill to calculate system size, Central + TN subsidy, net cost, and 25-year returns. Call +91 88833 35220 for details.

₹ 4,000 / mo
₹1,500 ₹10,000 ₹25,000+
Recommended Capacity 3.0 kW
Roof Area Required 300 sq.ft
Annual Solar Generation: ~4,350 Units / yr
Est. Solar Panel Count: 6-7 Panels (540W Monocrystalline)

Financial & TN Subsidy Breakdown

Estimated System Cost (Excl. Subsidy): ₹ 2,20,000
Central PM Surya Ghar Subsidy: - ₹ 78,000
Tamil Nadu Govt State Subsidy: - ₹ 22,000
Net Payable Investment in TN: ₹ 1,20,000
25-Year Estimated Solar Savings ~ ₹ 16.1 Lakhs Payback in ~2.8 to 3 years! Lock this offer: Call +91 88833 35220.
+91 88833 35220
Transparent Pricing

On-Grid Solar System Prices in Tamil Nadu

Cost breakdown for home sizes with PM Surya Ghar + Tamil Nadu subsidy applied. Helpline: +91 88833 35220.

*Note: Final on-grid solar plant cost depends on TANGEDCO charges, structure height & module variant. Call +91 88833 35220 for site evaluation.

COMMERCIAL & INDUSTRIAL SOLAR (B2B FUNNEL)

Commercial & Industrial Solar Solutions

Don't mix residential setups with commercial factories! We design turnkey heavy-duty solar power plants for high-power business consumers across Tamil Nadu.

🏭 Factories 🧵 Textile Units 🌾 Rice Mills 🏥 Hospitals 🏫 Schools & Colleges 🏨 Hotels & Resorts 💒 Marriage Halls 🏪 Commercial Shops 📦 Warehouses 🏢 Corporate Offices

Request Commercial Solar Proposal

Get custom HT/LT feasibility audit, ROI report, and accelerated depreciation tax savings statement.

Free B2B Audit
OUR BRAND POSITIONING

Why Choose OnGrid.Solar?

Backed by TAMILBTC TECHNOLOGIES — engineering standards that guarantee high generation and long-term reliability.

✓ Engineering-based design

System capacity and string sizing designed by qualified electrical engineers based on shadow analysis.

✓ Quality solar components

Tier-1 DCR monocrystalline panels, IP65 smart string inverters, and hot-dip galvanized mounting structures.

✓ Professional installation

Safety-certified technician team executing lightning protection, LA grounding, and conduit cable wiring.

✓ Transparent quotations

No hidden charges. Clear itemized cost breakdown of panels, inverter, net meter, structure, and labor.

✓ Net-metering assistance

Complete Liaison with TANGEDCO engineers for bidirectional net meter installation and safety testing.

✓ Subsidy guidance

100% portal documentation to ensure fast credit of PM Surya Ghar + TN Govt subsidy into your bank account.

✓ After-sales service

Dedicated local helpline (+91 88833 35220) and prompt site visits by our Papanasam, Thanjavur technical team.

✓ AMC & maintenance

Annual maintenance contracts, panel cleaning schedules, and remote mobile app generation monitoring.

OUR COMMITMENT

"We don't just sell solar panels.
We design your energy system."

— OnGrid.Solar (Division of TAMILBTC TECHNOLOGIES) | Founder: Rtn. Er. R. Vinothkumar

Talk to System Designer: +91 88833 35220
Corporate Identity

Ongrid.solar is a Division of TAMILBTC TECHNOLOGIES

Founded under the vision of Rtn. Er. R. Vinothkumar (vinoth.asia), TAMILBTC TECHNOLOGIES powers clean renewable energy, public utility projects, and tech innovation across Tamil Nadu.

tamilbtc.shop Official Solar & Tech Equipment Store
vinoth.asia Founder & Group Ecosystem Hub
Call Division Helpline: +91 88833 35220
OnGrid Solar Division Logo

Complete Solar & Tech Integration

Turnkey rooftop solar installation, TANGEDCO Net Metering liaisoning, and direct subsidy credit tracking.

100+ Solar Projects
100% Subsidy Assistance
25 Yrs Warranty
INSTAGRAM SHOWCASE & LIVE PROJECTS

Solar Installation Gallery & Social Feed

Explore our live rooftop solar projects, site inspection videos, and customer reviews. Follow our official Instagram profiles for daily updates!

Follow @er_vinothkumar Founder Profile Follow @tamilbtc_ Company Profile

Rtn. Er. R. Vinothkumar

@er_vinothkumar

Founder & CEO — TAMILBTC TECHNOLOGIES | Ongrid.solar

Leading renewable energy transformations, Smart Grid engineering, and tech innovations across Tamil Nadu.

vinoth.asia View Profile on Instagram →
TAMILBTC Logo

TAMILBTC TECHNOLOGIES

@tamilbtc_

Official Company Instagram Feed | On-Grid Solar Systems

Turnkey On-Grid solar plant installations, TANGEDCO Net Metering & PM Surya Ghar subsidy guidance in Tamil Nadu.

+91 88833 35220 View Profile on Instagram →
5 kW On-Grid Solar Rooftop Project
Papanasam, Thanjavur
5 kWp On-Grid System TN Subsidy Applied

Rooftop Solar Installation & Net Metering

Completed 5kW On-Grid solar power plant with monocrystalline half-cut panels and smart string inverter in Thanjavur district.

@er_vinothkumar View Post
Monocrystalline Solar Panels Detail
Kumbakonam, TN
3 kWp Residential Subsidy: ₹1,00,000

Premium Monocrystalline Solar Array

High-efficiency DCR monocrystalline panels installed with hot-dip galvanized mounting structure for maximum wind resistance.

@tamilbtc_ View Post
Reel Showcase
TANGEDCO Net Metering Process
Watch live site survey & net meter commissioning
Video Reel Site Survey Reel

How TANGEDCO Net Metering Works in TN

Watch our founder Er. R. Vinothkumar explain bidirectional net meter installation and Tamil Nadu state subsidy approval step-by-step.

@er_vinothkumar Watch Reel

Join Our Solar Revolution on Instagram

Tag @er_vinothkumar and @tamilbtc_ on your rooftop solar installation post to get featured!

@er_vinothkumar @tamilbtc_
TAMILBTC SOLAR INSIGHTS & BUYING GUIDES

Solar Knowledge Hub & TN Guides

Expert solar buying guides, Tamil Nadu subsidy breakdowns, TANGEDCO net metering FAQs, and ROI calculations by TAMILBTC TECHNOLOGIES.

Ask Solar Expert: +91 88833 35220
Tamil Nadu Solar Subsidy Guide
TN Subsidy Policy
Er. R. Vinothkumar • 4 min read

How to Claim Total ₹1,00,000 Subsidy for Rooftop Solar in Tamil Nadu

Complete walkthrough on combining Central PM Surya Ghar Yojana (up to ₹78,000) with Tamil Nadu State Govt subsidy (up to ₹22,000) for 1kW - 10kW systems.

Step-by-Step Guide
Solar Investment Plan ROI
ROI & Financials
TAMILBTC Tech Team • 5 min read

Solar Investment Plan (SIP): How On-Grid Solar Beats Bank FDs with 30%+ Returns

Financial analysis demonstrating why putting money into a rooftop solar plant pays back fully in 3 years and yields 22 years of zero electricity bills.

ROI Analysis
TANGEDCO Metering Bidirectional Net Metering Explained
Net Metering
Er. R. Vinothkumar • 6 min read

TANGEDCO Net Metering Guide: How Exported Daytime Solar Credits Your Bill

Learn how bidirectional meters calculate energy exported to the Tamil Nadu electricity grid during sunlight hours and offset your night usage.

TANGEDCO Rules

Have Questions About Solar Inverter Brands or Subsidy Forms?

Speak directly with solar engineer Er. R. Vinothkumar & team at TAMILBTC TECHNOLOGIES. Call: +91 88833 35220.

Call Helpline +91 88833 35220
FREQUENTLY ASKED QUESTIONS

Rooftop Solar FAQs & Buyer Answers

Clear answers regarding Tamil Nadu solar subsidy, net metering, roof space required, returns, and warranties.

Still Have Questions?

Talk to our solar engineer Er. R. Vinothkumar & team for instant guidance.

Call +91 88833 35220
Local Branch & Office

Contact OnGrid Solar

Visit our office or call our engineer for a free site visit: +91 88833 35220.

OnGrid Solar Logo

OnGrid Solar (www.ongrid.solar)

Division of TAMILBTC TECHNOLOGIES

Office & Service Address

2-68B, Kumbakonam Bypass Road,
Uthani Village, Papanasam,
Thanjavur – 614208, Tamil Nadu, India.

Direct Helpline & WhatsApp

+91 88833 35220

Websites & Ecosystem

www.ongrid.solar • vinoth.asia
Call +91 88833 35220 WhatsApp Chat

Map Location (Papanasam, Thanjavur)

Open in Maps →
Direct Helpline Support: +91 88833 35220
Call 88833 35220 WhatsApp Quote