On-Grid Solar Rooftop System

Bangladesh towards permanent energy to achieve rapid energy security, reduce carbon emissions and ensure a stable power supply. With over 300 sunshine days a year, urban and semi-urban have immense ability to produce rooftop solar energy on rooftop in Bangladesh.

An on-grid solar roof system for homes, educational institute, medical, hospitals, government offices businesses and industries to reduce the cost of monthly electricity while supporting the national grid is the most economical and practical way. Iconic Engineering Limited provide a proper system on Bangladesh's reliable renewable energy solution provider design and tailor-made rooftop that meets SREDA net-metering rules and international standards.

As the demand for electricity increases the cost of grid power continues to climb and anxiety about fossil-fuel dependence increases. An on-grid solar roof system is the most cost-effective and scalable way to solve these challenges. By installing solar panels in place of unused roof, you can generate clean power directly where it is consumed, dramatically cutting monthly bills, contributing to a greenery national grid.

What is an On-Grid Solar Rooftop System?

An on-grid (or grid-tied) system is a solar power setup that directly connects the national power grid without a battery. During the hours of the daylight, the roof solar array produces DC electricity, which is converted to AC by grid-tied inverter.

• Self-Consuming: Your equipment uses the solar energy generated first.
• Export to grid: Energy automatically flows into the national grid.
• Net metering: Get credit that reduces your electricity bill.

This means that you enjoy free solar energy during the day and draw electricity from the grid at night or when sunlight is insufficient.

Key principle:

• Daytime: Solar panels generate DC electricity.
• Conversion: Smart inverter converts DC to AC and feeds it into electrical panel.
• Consumption First: Premises use solar energy first.
• Surplus Export: Any extra power automatically flows to the national grid, earning you credits through net metering.
• Nighttime/Cloudy Hours: When sunlight is low or absent, power seamlessly comes from the utility grid.

How the System Works

1. Solar Power Generation: High efficiency PV modules capture sunlight and convert it into DC electricity.
2. DC to AC conversion: Grid-tied inverter converts DC into 230/400 V AC, which is synchronized with the utility grid.
3. Load Supply: Day loads (lights, fans, machinery, air-conditioner) are operated directly by solar.
4. Grid Export and Net Metering: Additional power can send to utility grid; Credit appears monthly bill.
5. Nighttime Supply: When the sun sets, the system basically imports electricity from the grid.

Key Components for Rooftop Solar System

• Solar PV Modules
• Grid-Tied Inverter
• Mounting Structure
• Monitoring System
• Protection Devices
• System Voltage
• Net Metering

Design & Installation Process

1. Site Survey & Feasibility Study: Roof strength analysis, shadow mapping, load study. Preparing and analyze everything before installation
2. Engineering & System Design: Optimal array sizing, inverter selection, electrical drawings, Solar Panel Selection
3. Utility Approval & Net Metering Application: Coordination with local distribution company (DESCO, DPDC, BPDB, REB, NESCO etc.)
4. Procurement & Installation – Panel mounting, inverter setup, AC/DC wiring, protection devices.
5. Testing & Commissioning; After Proper installation need to grid synchronization and performance verification.
6. Training & Handover: User orientation and give proper training about system monitoring
7. After-Sales Support: Periodic maintenance, remote performance monitoring and technical support overall the system.

Advantages at a Glance

Cost Savings: Reduce electricity bills by 60–90%, depending on rooftop size and consumption pattern of the system.

No Battery Maintenance: Eliminates expensive storage, no need maintenance battery, lowering upfront cost and simplifying upkeep.

Environmentally Friendly: Zero operational carbon emissions; aligns with Bangladesh’s climate commitments.

Quick ROI: Typical payback in 2-3 years, while panels last 25+ years.

Low Maintenance: Only need routine cleaning, periodic maintenance and annual inspections.

Ideal Applications

• Government Office Rooftops: Installing grid-tied or hybrid solar systems on government office rooftops can offset a large share of daytime electricity demand
• Residential Rooftops: Urban homes and apartments seeking lower electricity bills.
• Commercial Buildings: Offices, malls, hotels, hospitals.
• Industrial Facilities: Factories, warehouses, textile mills—high daytime loads match solar generation.
• Educational Institutions: Schools and universities reducing OPEX and demonstrating sustainability.

Compliance & Certifications

• IEC 61215 & 61730: Solar module quality and safety.
• IEC 62109: Inverter safety compliance.
• BNBC Guidelines: Structural and wind-load safety.
• SREDA Net Metering Policy 2018: Full eligibility for energy credits.

Financial Models & Incentives

• CAPEX (Owner Model): You own the system; maximum savings after payback.
• OPEX / BOOT Model: Third-party investor funds and operates the plant; you pay a lower tariff for solar energy.

Why Choose Iconic Engineering Limited

• Proven Track Record: Successful off grid, Hybrid and on-grid rooftop projects across Bangladesh.
• Turnkey Solutions: Feasibility, design, installation, commissioning, and after-sales service.
• Premium Equipment: Partnerships with global Tier-1 PV manufacturers and inverter suppliers.
• Dedicated O&M Team: Ensures long-term reliability and maximum energy yield.

Future Outlook for Bangladesh

The government targets 4,100 MW of renewable energy by 2030 and is actively supporting rooftop solar through SREDA and IDCOL programs. As electricity tariffs rise and green financing expands, on-grid rooftop solar will be a cornerstone of Bangladesh’s sustainable energy landscape.

On-grid solar roof system is the smartest investment for urban and industrial areas of Bangladesh. It reduces monthly electricity bills, supports national renewable goals, and provides a clean, reliable power source for decades. Iconic Engineering Limited provides end-to-end solutions approval, installation, and maintenance-increasing your roof provides maximum savings and environmental benefits.

Invest today for energy freedom and a greenery tomorrow. By selecting the Iconic Engineering limited, you get a partner with deep technical expertise, international-standard equipment, and a commitment to long-term service excellence.