Rooftop solar for homes
Residential Solar
Ideal for
HousesVillasApartmentsIndividual residences
- Rooftop solar
- On-grid systems
- Battery backup solutions
- Energy-consumption assessment
- Installation and commissioning
A WBSEDCL Enlisted Solar Vendor · Purba Bardhaman, West Bengal
Power Your Futurewith Clean Solar Energy
Complete solar plant solutions for residential, commercial and industrial applications — from consultation and design to installation, commissioning and after-sales support.
- Professional Installation
- Complete Project Support
- Residential · Commercial · Industrial
- After-Sales Assistance
Rooftop · Ground-mounted · EPC
Quick Solar Peek
Suggested size
4.5 kW
Approx. generation
540 units/mo
Indicative only — actual sizing needs a site assessment.
Based in
Babla, Galsi Bazar
Purba Bardhaman, WB
About Rainbow Enterprise
Your Trusted Partner for Solar Energy
Rainbow Enterprise provides end-to-end solar solutions — from initial consultation and system design through installation, commissioning and after-sales assistance. As a WBSEDCL enlisted solar vendor, we serve residential, commercial, industrial and institutional customers across Purba Bardhaman and West Bengal with rooftop, grid-connected, battery-backup, on-grid and off-grid solar plants.
01
Consultation
Understand electricity consumption, site requirements and customer objectives before any recommendation.
02
Engineering & Design
Develop a suitable solar system based on load, available roof or land area and project requirements.
03
Installation & Support
Professional installation, commissioning and ongoing customer assistance after handover.
Solar Solutions
Complete Solar Solutions for Every Scale
Rooftop and ground-mounted solar plants engineered around your load, space and application.
Solar for business premises
Commercial Solar
Ideal for
ShopsOfficesSchoolsHospitalsHotelsWarehousesCommercial buildings
- Reducing electricity costs
- Rooftop utilization
- System sizing
- Energy generation planning
- Professional installation
Large-scale solar for industry
Industrial Solar
Ideal for
FactoriesManufacturing unitsIndustrial buildingsLarge rooftopsOpen-land installations
- Load assessment
- Solar capacity planning
- Engineering & equipment selection
- Installation & commissioning
- Maintenance & support
System Types
On-Grid, Off-Grid & Hybrid Solar
Three solar architectures — the right choice depends on your grid reliability and backup needs.
Grid-Tied
On-Grid Solar
Solar system connected to the electricity grid.
- Works along with the grid supply
- Surplus energy can be exported through net metering
- No batteries required
- Shuts down during a grid power cut (safety requirement)
Independent
Off-Grid Solar
Solar system with battery storage for applications requiring independent power.
- Operates independently of the grid
- Battery bank stores energy for night / backup use
- Suitable where grid supply is unavailable or unreliable
- Higher battery investment
Grid + Battery
Hybrid Solar
Solar generation combined with battery storage and grid supply.
- Uses solar, battery and grid together
- Provides backup during power cuts
- Can still export surplus where permitted
- Higher system cost than pure on-grid
| Aspect | On-Grid | Off-Grid | Hybrid |
|---|---|---|---|
| Grid connection | Required | Not required | Optional |
| Works during power cut | No | Yes | Yes |
| Battery bank | No | Yes | Yes |
| Net metering / export | Yes | No | Yes, where permitted |
| Typical use | Reliable grid areas | Remote / weak-grid areas | Backup + savings together |
How We Work
Complete Solar EPC Process
A transparent, eight-step journey from first conversation to long-term support.
- 01
Consultation
Understanding your electricity usage, goals and site requirements.
- 02
Site Assessment
Physical survey of roof or land area, structure and shadow conditions.
- 03
Load & Energy Analysis
Analysing consumption patterns to size the system correctly.
- 04
System Design
Engineering the array layout, inverter selection and electrical design.
- 05
Proposal & BOQ
Transparent proposal with clear scope, bill of quantities and pricing.
- 06
Installation
Professional mounting, wiring and equipment installation.
- 07
Testing & Commissioning
Electrical testing, safety checks and system commissioning.
- 08
Handover & Support
Documentation handover and ongoing after-sales assistance.
Solar Calculator
Estimate Your Solar Requirement
Indicative sizing and project estimates based on your bill, tariff and available roof area.
Customer type
Indicative Estimate
Suggested capacity
4.5 kW
Approx. monthly generation
540 units
Approx. annual generation
6,480 units
Indicative project cost
₹2,79,000 approx.
Indicative payback period
5.7 years
Roof area needed
383 sq.ft
Results are indicative. Final system capacity, generation and project cost depend on site conditions, electricity tariff, shadow analysis, equipment selection and detailed engineering.
The Savings Story
Watch a Monthly Bill Shrink
Scroll down and see how a typical household electricity bill changes once rooftop solar starts generating.
How rooftop solar changes your bill
- Solar power is consumed first — your daytime usage runs on sunlight before the grid.
- Only the balance is drawn from the grid, so the payable units on your bill drop.
- Where net metering applies, surplus daytime generation can earn credits on future bills.
Illustrative example: a ₹4,500/month household bill with an indicative 3–4 kW rooftop system. This is not a savings guarantee — actual results depend on consumption pattern, tariff, system size, shading and site conditions, confirmed after a site assessment.
Illustrative monthly electricity bill
₹4,500
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Without solar → with rooftop solarRooftop solar generating
Products & Components
What Goes Into a Rainbow Enterprise Plant
Equipment categories we work with — specific makes and models are proposed transparently in every BOQ.
Solar Modules
- Mono PERC
- TOPCon
- Bifacial modules
- DCR / Non-DCR where applicable
Inverters
- On-grid inverters
- Hybrid inverters
- Off-grid inverters
Battery Storage
- Lithium battery systems
- Other storage solutions
Protection & Electrical
- ACDB
- DCDB
- SPD
- MCB / MCCB
- Isolators
- Earthing systems
- Solar cables
Mounting Structures
- Rooftop structures
- Ground-mounted structures
- Hot-dip galvanized structures
Component selection is finalised per project based on availability, site requirements and applicable specifications. No particular manufacturer is implied unless stated in your proposal.
Our Projects
Installations & Portfolio
A selection of our solar work across residential, commercial and industrial segments.
ResidentialSample
Residential Rooftop Project
— kWp Purba Bardhaman —
Sample placeholder card — replace with a real completed residential rooftop installation, its capacity and site details.
CommercialSample
Commercial Rooftop Project
— kWp West Bengal —
Sample placeholder card — replace with a real commercial installation for a shop, office, school or hospital.
IndustrialSample
Industrial Solar Project
— kWp West Bengal —
Sample placeholder card — replace with a real industrial rooftop or ground-mounted solar plant.
Why Choose Us
Why Customers Choose Rainbow Enterprise
Local presence in Galsi Bazar combined with disciplined, engineering-first project delivery.
Complete Solar Solutions
From planning to commissioning — one accountable partner for the entire project.
Customized System Design
Solutions engineered around your load, roof area and project requirements.
Quality Components
Reliable and appropriate solar equipment selected for every installation.
Professional Installation
Focus on safety, quality and workmanship at every site.
Transparent Proposal
Clear scope, equipment and pricing structure — no hidden surprises.
Customer Support
Assistance after installation, based locally in Galsi Bazar.
Solar Subsidy & Government Schemes
Subsidy eligibility and amounts depend on the applicable government scheme, customer category, system capacity and prevailing rules. Our team explains the options applicable to your project and assists with the relevant application process as part of the project scope.
"Subsidy information is subject to prevailing government guidelines and eligibility conditions."
PM Surya Ghar: Muft Bijli Yojana is the Government of India's rooftop solar scheme for households. Visit the official portal for current guidelines, eligibility and application details — or read our step-by-step application guide.
FAQ
Frequently Asked Questions
Straight answers about solar systems, installation and the quotation process.
An on-grid (grid-tied) solar system works along with your electricity grid connection. Solar power is used first and surplus energy can be exported to the grid through net metering. For safety, it automatically shuts down during a grid power cut.
Contact Us
Let's Build Your Solar Future
Request a free quote or site survey — we respond to every enquiry personally.
Call us+91 83899 89979Emailrainbowent360@gmail.com
Visit usBabla, Galsi Bazar, Purba Bardhaman, West Bengal, India
Request Site Survey on WhatsApp