Grid Tie Roof Top SPV
Rooftop Solar Power Plants in India
Rooftop solar power plants are a smart and sustainable solution for both domestic and commercial users across India. By converting sunlight into clean electricity, these systems significantly reduce monthly power bills and dependence on conventional energy sources. For homes, rooftop solar offers energy independence, low maintenance, and long-term savings, while for businesses, it ensures stable power supply and faster return on investment. Modern on-grid systems with net metering allow users to export surplus energy back to the grid, further maximizing economic benefits. Installation is quick, scalable, and adaptable to various roof types—making solar energy accessible for households, offices, schools, and industries alike. Investing in solar today not only saves money but also contributes to a cleaner and greener future for India.
Grid-tie solar systems
Grid-tie solar systems link solar panels to the electric grid, enabling users to generate their power. Excess electricity produced is fed back into the grid, often earning credits or reducing bills. This sustainable solution allows seamless transition between solar and grid power, ensuring a reliable energy supply. Grid-tie solar setups are popular for their economic benefits, environmental impact, and contribution to a more resilient and decentralized energy infrastructure. grid.
Net Metering & Gross Billing: CESC & West Bengal DISCOMs (WBSEDCL / CESC)
Key Regulations & Eligibility
The West Bengal Electricity Regulatory Commission (WBERC) has released the Grid Interactive Rooftop Solar PV System for Prosumers Regulations, 2025. Prosumers (people who both consume & produce electricity) can opt for net metering, net billing, or gross metering.
- For CESC (Kolkata) and WBSEDCL Net Metering is applicable for consumers having solar capacity 1 KW or more and up to 500 KW or up to contract demand / atramental load whichever is lower.
Net Metering:-
How it works? Solar power you generate is first used for your consumption. Excess is sent to grid; imported units from grid minus exported units = your net usage.
Billing / Tariff rules in these areas :- You pay only for net imported units (grid electricity minus exported). Surplus exported units get credited and carried forward (within the billing period or annually as per regulation)
🌞 1kW–5kW Single Phase Rooftop Solar System in Kolkata (CESC Area)
Bring the power of the sun to your home with our 1kW to 5kW single-phase on-grid rooftop solar systems, designed especially for domestic users in the CESC area. These compact solar plants are perfect for Kolkata’s rooftops — reliable, efficient, and fully compatible with CESC net metering.
Our systems generate an average of 4 units of electricity per kW per day, helping you save up to ₹700–₹4,000 per month depending on system size. Most homeowners recover their investment within 5–6 years, enjoying free solar power for over 20 years afterward
Why choose solar with CESC?
Reduce monthly electricity bills by up to 90%
Earn power credits through CESC Net Metering
Low maintenance, long life, and government subsidy benefits
Quick installation with expert support
Note: Costs and generation may vary based on roof size, location, and CESC approval process.
Go solar today — power your home sustainably and save for years to come.
| System Size | Est. Units/Month | Avg. Monthly Savings | Est. Payback |
| 1 kW | 120 | ₹ 877 | ~5.8 years |
| 2 kW | 240 | ₹ 1,754 | ~5.8 years |
| 3 kW | 360 | ₹ 2,632 | ~5.8 years |
| 4 kW | 480 | ₹ 3,509 | ~5.8 years |
| 5 kW | 600 | ₹ 4,386 | ~5.8 years |
Commercial / Three-Phase Rooftop Solar Systems in Kolkata & West Bengal (10kW–25kW and Above)
Power your business sustainably with our high-capacity, three-phase rooftop solar systems, designed for commercial establishments, offices, schools, hospitals, and small industries in Kolkata and West Bengal. Our 10kW–25kW (or larger) solar plants are on-grid, net-metering compatible, and fully compliant with CESC and WBSEDCL regulations, offering significant electricity cost savings and long-term financial benefits.
System Highlights
Capacity Range: 10kW – 25kW+ (scalable for larger roofs and industrial needs)
System Type: On-grid three-phase rooftop solar
Panels: High-efficiency mono/Poly PERC modules
Inverter: 3-phase on-grid inverters with smart monitoring
Mounting: Robust, weather-resistant rooftop structures
Net Metering / Feed-in: Export surplus energy to the grid and earn credits or feed-in tariff
Estimated Benefits (10kW–25kW Systems)
System Size | Est. Daily Generation | Est. Monthly Generation | Approx. Monthly Savings |
| 10 kW | 40 kWh | 1200 kWh | ₹ 8,772 |
| 15 kW | 60 kWh | 1800 kWh | ₹ 13,158 |
| 20 kW | 80 kWh | 2400 kWh | ₹ 17,544 |
| 25 kW | 100 kWh | 3000 kWh | ₹ 21,930 |
Generation estimates assume average solar irradiation in Kolkata (~4 kWh/kW/day) and CESC retail tariff ~₹7.31/kWh. Actual savings may vary based on roof orientation, shading, and usage patterns.
Why Choose Our Commercial Solar Solutions?
Reduce electricity bills by up to 60%
Earn credits for excess power exported to CESC or WBSEDCL
Quick installation with professional EPC services
Long-term reliability with 25-year panel warranty and 5–10-year inverter warranty
Supports government solar subsidy programs for businesses
Investing in a commercial rooftop solar plant not only ensures energy independence but also strengthens your business’s green credentials and contributes to a sustainable future.
Note: System cost and design vary based on roof size, load requirements, location, and site conditions. A detailed site survey is required for a precise quote.