The Engineering Knowledge Behind Every Good Solar Decision
Clear, honest, Bangladesh-specific solar knowledge — from how systems are designed and sized to how savings, net metering, and maintenance really work. Learn first, then decide with confidence.
Start Here
The Four Core Guides
If you read nothing else, read these. Together they take you from “should I?” to “what exactly do I need?”
Solar Design Philosophy
Why a solar system is engineered, not just bought — and what “design-first” actually means for your result.
Read the guide →System Sizing Guide
How the right capacity is calculated from your real load, roof area, and goals — not from a price list.
Read the guide →ROI & Payback Guide
How return on investment is calculated honestly, with the assumptions you can check yourself.
Read the guide →Solar FAQ
Straight answers to the questions customers ask most, before and after going solar.
Read the FAQ →Our Approach
Knowledge Before Quotation
Most solar regret comes from buying before understanding. This Knowledge Center exists so you can ask better questions, compare offers properly, and recognise a well-engineered system when you see one. We would rather you decide slowly and correctly than quickly and blindly.
Browse by Topic
Solar Knowledge, Organised
Nine topic areas covering the full journey — from first idea to long-term performance.
Solar Basics
How solar works, what a complete system includes, and the core terms you will meet.
Explore →System Design & Engineering
Load study, roof assessment, layout, protection, and why each step matters.
Explore →On-grid, Hybrid & Off-grid
The three system types, what each does, and which fits your situation.
Explore →Cost, ROI & Savings
What drives cost, how savings accumulate, and how payback is estimated.
Explore →Installation & Safety
What safe installation looks like — protection, earthing, and standards.
Explore →Technology & Components
Panels, inverters, batteries, and protection — how the parts fit together.
Explore →A Simple Path
From Curious to Confident in Five Steps
Understand Your Goal
Bill savings, backup, or both? Your goal shapes everything.
Learn the System Types
On-grid, hybrid, or off-grid — know the trade-offs.
Size It Correctly
Match capacity to your real load and roof.
Check the ROI Honestly
Estimate payback with assumptions you can verify.
Plan Installation & Care
Safe install, documentation, and long-term maintenance.
More Resources
Go Deeper
Resource Library
Reference material, checklists, and documents you can use while planning your system.
Open the library →Technology Categories
A breakdown of the core components and what to look for in each.
Browse technology →Projects & Case Studies
See how the principles in these guides translate into real engineered systems.
View projects →Why Trust This Knowledge
Built on Engineering, Not Marketing
From Real Practice
Written from how FSP actually designs, installs, and maintains systems.
Honest by Default
Savings and payback are presented as estimates, with the assumptions shown.
Local Context
Grounded in Bangladesh tariffs, net metering, and grid reality.
Kept Current
Updated as standards, technology, and policy evolve.
Have a Question We Haven’t Covered Yet?
Ask our engineers directly. Whether you are just exploring or ready to design a system, we are happy to help you understand your options clearly.
From the News
Latest Articles
Recent engineering-led articles on solar design, sizing, safety, and ROI. Tap any card to read the full article.
- How to Spot Fake or Low-Quality Solar Panels and Equipment in Bangladesh
Relabelled panel wattage, controllers sold as MPPT that are really PWM, and cables thinner than marked have all been reported in Bangladesh’s solar market. This practical checklist shows how to verify panels, inverters, batteries and cables before you pay — and where to complain. - Solar for Hospitals and Clinics in Bangladesh: Keeping Care Running During Load SheddingWhen load shedding hits a hospital, patients feel it first. This guide explains how solar fits into a hospital or clinic power system — which loads it should carry, how it works with generators, and how public hospitals can install it with no upfront cost.
- Solar for Poultry and Dairy Farms in Bangladesh: Protect Your Birds and Cows from Load SheddingLoad shedding during hot weather kills broilers, stops layers from laying and spoils milk. This guide shows how poultry and dairy farms can use solar to keep fans, lights, pumps and chillers running — with a sizing example, shed-roof tips and financing options.
- Solar for Mosques, Madrasas and Schools in Bangladesh: Rules, Costs and the OPEX OptionA parliamentary committee has recommended rooftop solar for mosques, and the Madrasah Education Board now requires new madrasah solar projects to use the OPEX model. This guide explains the rules and shows how mosques, madrasas and schools can cut electricity bills — often with no upfront cost.
- Special Solar Power Installation Ordinance 2026: What It Means for Owners, Businesses and InvestorsBangladesh’s new Special Solar Power Installation Ordinance, 2026 sets rules for rooftop and small solar projects up to 5 MW — including zero-upfront OPEX agreements, faster CAPEX procurement and penalties for theft or damage. Here is what it means for building owners, businesses, government offices and investors.
- On-grid vs Off-grid vs Hybrid Solar in Bangladesh: Which Is Right for You?On-grid, off-grid and hybrid solar systems solve different problems. This guide compares backup, savings, cost, net metering and incentives in plain language, and gives a simple way to choose the right type for your home, business or farm in Bangladesh.
