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Rubama Corporation Limited

Knowledge hub

Solar Information

Clear, practical guides to help you understand solar energy and plan your system with confidence.

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.

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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.

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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.

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Solar Applications 1 min read

Commercial Solar Energy

Offices, shops, factories and institutions often use most of their electricity during daylight — a natural fit for solar.

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Solar Applications 1 min read

Residential Solar Energy

How rooftop solar can power a home, what system types suit households, and how to start planning.

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Installation & Maintenance 1 min read

Solar Panel Maintenance Guide

Simple routines keep a solar system performing well: cleaning, visual checks, monitoring and periodic professional inspections.

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Installation & Maintenance 1 min read

Solar Panel Installation: What to Expect

From site assessment to commissioning, here is what happens during a typical solar installation and how to prepare.

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Solar Basics 1 min read

On-Grid vs. Off-Grid Solar Systems

Should your system connect to the grid, work independently, or both? Compare on-grid, off-grid and hybrid designs.

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