Available on Request
Complete Solar Kits
Home Solar Kit 3kW Hybrid
Panels, hybrid inverter, battery and accessories matched for a typical household.
- Array size
- 3 kW
- Inverter
- Hybrid
Price on request
Details
Clean Energy. Lower Bills. A Sustainable Tomorrow.
Power Your Future with Solar Energy
Discover solar energy solutions designed to help homes and businesses reduce their dependence on conventional electricity and embrace a more sustainable future.
Clear, practical solar information
Understand Solar Before You Invest
From panel types and inverters to battery storage and system sizing, our guides explain the essentials in plain language so you can plan with confidence.
Panels, inverters, batteries and complete kits
Solar Solutions for Homes, Businesses and Industry
Explore solar products and systems for rooftops, commercial buildings, irrigation and off-grid sites — and request a quote tailored to your requirements.
Solar energy 101
Discover the Power of Solar Energy
Every day the sun delivers far more energy to the Earth than people use. Solar photovoltaic (PV) systems turn part of that sunlight directly into electricity — quietly, with no fuel and no moving parts. Whether you run a household, a shop, a factory or a farm, solar can become a dependable part of how you meet your electricity needs.
-
Renewable and abundant
Sunlight is replenished daily and available almost everywhere.
-
Generated where you use it
Rooftop and on-site systems produce power close to your loads.
-
Low running requirements
PV panels have no moving parts and need only routine care.
The process
How Solar Energy Works
A solar power system turns sunlight into usable electricity in a few clear steps.
-
Step 1: Panels capture sunlight
Photovoltaic cells in the solar panels convert sunlight into direct-current (DC) electricity.
-
Step 2: The inverter converts power
An inverter converts DC electricity into alternating current (AC), the form used by most appliances and the grid.
-
Step 3: Electricity supplies your loads
Lights, fans, pumps, machines and other suitable electrical loads use the solar electricity as it is generated.
-
Step 4: Batteries store surplus energy
In systems designed with storage, batteries keep extra energy for the evening, cloudy periods or outages.
-
Step 5: Excess can be exported
Where net metering or export is available and permitted, surplus electricity can be fed into the utility grid.
Products
Featured Solar Products
A selection of solar panels, inverters, batteries and complete kits from our catalog.
Available on Request
Solar Batteries
LiFePO4 Solar Battery 5kWh
Lithium iron phosphate battery with integrated BMS for residential storage.
- Chemistry
- LiFePO4
- Nominal capacity
- 5 kWh
Price on request
DetailsSolar Inverters
Hybrid Solar Inverter 5kW
Hybrid inverter that combines solar, battery storage and grid power in one unit.
- Rated output power
- 5 kW
- Type
- Hybrid (on-grid / off-grid)
Price on request
Details
In Stock
Solar Panels
Monocrystalline Solar Panel 450W
Versatile 450W module for residential rooftops and small commercial systems.
- Cell type
- Monocrystalline, half-cut
- Maximum power (Pmax)
- 450 W
Price on request
Details
In Stock
Solar Panels
Monocrystalline PERC Solar Panel 550W
High-efficiency 144 half-cell monocrystalline module for rooftop and ground-mounted systems.
- Cell type
- Monocrystalline PERC, half-cut
- Cell count
- 144 (6 × 24)
Price on request
Details
Pre-order
Solar Water Pumps
Solar Submersible Pump 2HP
DC submersible pump with controller for irrigation and water supply.
- Motor power
- 2 HP
- Type
- DC submersible with controller
Price on request
DetailsWhy solar
Benefits of Solar Energy
The advantages of solar depend on your site, usage and system design — these are the benefits most people look for.
Renewable electricity
Generate electricity from sunlight, a resource that is replenished every day.
Potential bill savings
Electricity you generate and use yourself can reduce the amount you buy from the grid. Actual savings vary by site and tariff.
Less reliance on the grid
Solar, especially with storage, can reduce your dependence on conventional supply and help during outages.
Lower operational emissions
PV systems produce no direct emissions while generating electricity.
Homes to industry
Systems can be sized for a single household, a commercial rooftop or an industrial facility.
Long-term energy planning
Solar panels typically carry long performance warranties, which helps with long-term planning.
Applications
Solar Solutions and Applications
Solar technology adapts to many settings. Here are the most common ways it is used.
Residential solar
Rooftop systems that supply household lighting, fans, appliances and more.
Learn more
Commercial solar
Systems for offices, shops, schools and hospitals with significant daytime demand.
Learn more
Industrial solar
Large rooftop and ground-mounted arrays that offset factory and warehouse consumption.
Off-grid systems
Independent systems for sites that have no grid connection.
Solar water pumping
Solar-powered pumps for irrigation, livestock and drinking water without diesel fuel.
Grid-connected systems
Systems that work alongside the utility grid, where interconnection is permitted.
On-grid vs off-gridOur approach
Why Work with Rubama Corporation
We believe a good solar decision starts with good information. Our approach puts your site, your consumption and your goals first.
- Information first
- Clear explanations of options, trade-offs and limitations before any recommendation.
- Site-specific advice
- Recommendations based on your load profile, roof or land and local conditions.
- Quality-focused products
- Products selected with attention to specifications, warranties and suitability.
- Support after installation
- Guidance on monitoring, maintenance and getting the most from your system.
Safety and quality first
Getting started
Our Solar Installation Process
A typical project moves through five stages.
-
1
Consultation
We discuss your goals, electricity use and budget.
-
2
Site assessment
We review the roof or land, shading, structure and electrical setup.
-
3
Design and quotation
We propose a system size, components and a written quotation.
-
4
Installation
Qualified technicians mount, wire and connect the system safely.
-
5
Commissioning and support
We test the system, explain its operation and remain available for support.
Solar information
Latest Solar Articles
Guides and explainers to help you understand solar technology.
Planning & Costs
1 min read
Factors Affecting Solar Installation Costs
System size, batteries, equipment quality, site conditions and more all influence what a solar project costs.
Read more
Planning & Costs
1 min read
Solar System Sizing Basics
Estimate your energy needs, translate them into panel and battery capacity, and understand the assumptions behind the numbers.
Read more
Solar Applications
1 min read
Solar Energy in Bangladesh
Bangladesh has a long history with solar home systems and growing interest in rooftop, irrigation and commercial solar.
Read moreFAQ
Frequently Asked Questions
Quick answers to common questions about solar energy.
Yes, but output is lower. Panels generate electricity from daylight, so production drops under heavy cloud and rises again in direct sun. System sizing takes typical weather into account.
A standard grid-connected system shuts down during an outage for safety. To keep power during outages you need a system designed with batteries and a suitable hybrid or off-grid inverter.
Quality panels commonly carry performance warranties of around 25 years and can keep producing beyond that at gradually reduced output. Inverters and batteries usually need replacement sooner.
It depends on panel wattage and the system size you need. As a rough guide, each kilowatt of modern panels needs several square metres of unshaded area. A site assessment gives an accurate figure.
Maintenance is modest: keep panels reasonably clean, check for shading and damage, and have the electrical system inspected periodically. Dusty environments may need more frequent cleaning.
Start with your electricity bills or a list of the loads you want to run. Your daily energy use, available space, budget and whether you want backup all shape the design.
Get started
Ready to explore solar for your home or business?
Tell us about your site and electricity needs, and we will help you understand your options.