Lower your business's electricity cost with commercial solar EPC
HELIORA delivers turnkey Commercial Solar EPC (Engineering, Procurement & Construction) for offices, factories, warehouses, showrooms and retail spaces across Kolkata and West Bengal — from 10 kWp rooftop systems to multi-hundred-kWp installations, engineered for maximum generation and fastest possible payback.
10 kWp – MWp scale
3-phase commercial systems sized to your sanctioned load, roof area and daytime consumption pattern.
Fast ROI
Commercial tariffs are typically higher than residential, giving businesses in Kolkata a faster payback on solar investment.
Single-point EPC
Design, supply, installation, commissioning, net metering and after-sales — all under one contract.
Full-scope commercial solar EPC delivery
- Site survey, load analysis and feasibility study for your Kolkata / West Bengal commercial property.
- Engineering design optimised for rooftop area, shading and structural load.
- Supply of ALMM-approved, DCR-certified modules and industrial-grade three-phase inverters.
- Installation, commissioning and CESC / WBSEDCL 3-phase net-metering assistance.
- Remote monitoring dashboards and structured Annual Maintenance Contracts (AMC).
How we deliver commercial solar projects
Feasibility & Site Survey
Technical evaluation of rooftop/land area, sanctioned load and energy consumption.
Engineering & Design
Detailed system design, structural and electrical drawings for approval.
Procurement
Sourcing of premium panels, inverters, mounting structures and BOS components.
Construction & Installation
On-site EPC execution by trained crews following MNRE, BIS and DISCOM norms.
Testing & Commissioning
Grid synchronisation, safety checks and 3-phase net-metering commissioning.
O&M Support
Performance monitoring, preventive maintenance and dedicated project coordination.
Commercial Solar EPC across Kolkata & West Bengal
We've delivered commercial rooftop EPC projects including a 13.3 kWp 3-phase system at Santoshpur, Kolkata and a 10 kW on-grid EPC installation at The Scottish Church Collegiate School, Kolkata — see our full project portfolio. We serve businesses across Kolkata, Howrah, Hooghly, North & South 24 Parganas and other West Bengal districts.
Commercial Solar EPC — common questions
What size commercial solar system do I need?
It depends on your sanctioned load, roof/land area and monthly consumption. We size systems from 10 kWp up to MWp scale after a free site survey.
Does commercial solar in Kolkata qualify for subsidy?
PM Surya Ghar subsidy applies to residential households. Commercial systems benefit instead from accelerated depreciation and faster ROI due to higher commercial tariffs.
Do you handle net metering for businesses?
Yes — we manage the complete CESC / WBSEDCL 3-phase net-metering application and approval process for commercial connections.
Can you handle EPC for industrial-scale plants too?
Yes, see our dedicated Industrial Solar Plant page for MW-scale EPC capability.