Two things tend to go wrong when someone hires the wrong solar company in Bangladesh. Either the installer disappears somewhere between the advance payment and the finished job, or the system gets built just fine — and then the net-metering application gets rejected because the inverter was never on SREDA’s approved list. Nobody warns you about the second one until it happens to you.
Most solar checklists floating around online are written for the US or the UK, where the advice is “check your state licensing board” or “confirm your statutory warranty period.” None of that maps onto Bangladesh. There’s no state board here, and there isn’t a clean legal minimum warranty the way some countries have. What actually protects you is a different, more specific set of checks — and most of them are things you can verify yourself in twenty minutes before you ever sign a contract.
Confirm the Installer Is Actually Licensed to Do Electrical Work
In Bangladesh, electrical installation work — including solar wiring — falls under the licensing system run by the Electricity Licensing Board. Licenses are issued in categories, and the distinction that actually matters to you as a buyer is this: an electrician’s license allows someone to carry out wiring work under supervision, while a full electrical contractor license allows a person or firm to take on and supervise a job independently.
Ask directly which category the installer or their lead electrician holds. A company that hesitates, changes the subject, or says “our team handles it” without naming a license number is telling you something. For larger commercial or industrial jobs, it’s also worth asking whether the system design — the Single Line Diagram, earthing plan, and string layout — was signed off by someone with recognised engineering credentials, since utilities generally expect that documentation to come from a qualified source before they’ll approve the interconnection.
This is one area where residential and industrial buyers diverge a little. A homeowner installing a 5kW rooftop system mostly needs to confirm the electrician doing the physical work is licensed. A factory or commercial building adding a larger system needs that, plus a properly credentialed engineer behind the design documents — because utility approval at that scale depends on paperwork holding up to scrutiny, not just on the wiring being safe.
Check That the Equipment Is SREDA-Approved
This is the single most useful filter available to a Bangladeshi solar buyer, and it doesn’t really have an equivalent in the checklists written for other markets.
SREDA — the Sustainable and Renewable Energy Development Authority — maintains a public list of approved solar panels and inverters that meet Bangladesh Standards and equivalent IEC safety requirements. If your installer is proposing equipment that isn’t on that list, two things are likely: you’re looking at grey-market or unbranded hardware, and your net-metering application has a real chance of being rejected or delayed, because the utility checks equipment against that same list.
Ask for the brand and model of the panels and inverter in writing, before you sign anything, and check them yourself against SREDA’s published list. A reputable installer won’t mind you doing this — in fact, one that brings it up unprompted is showing you they understand the approval process, not just the installation itself.
It’s worth being blunt about why this matters: the cheapest quote you receive is often cheap specifically because it swaps in unapproved equipment. That’s not always visible in a proposal that just says “400W panel, hybrid inverter” without naming a brand.
Look Past the Installer’s Own Website for References
Every solar company’s website is full of five-star quotes. That tells you almost nothing.
In Bangladesh, the more useful signals tend to be a company’s Facebook business page — where real customers post comments, complaints, and photos in a much less curated space than a website testimonial section — and Google Business reviews, which are harder to fake at volume. Beyond that, ask for the address or contact of a recent, similarly sized installation and actually visit or call. A company that’s genuinely done the work has no reason to make this difficult.
For commercial and industrial buyers, this step matters even more. A factory owner isn’t just checking whether the panels look fine on someone’s roof — they want to know the installer has handled a job at a comparable scale before, ideally with a similar utility connection (three-phase, higher sanctioned load) and a similar approval process.
Get at Least Three Quotes — and Actually Itemize Them
Three quotes is the right minimum, but the number matters less than what you do with them. Ask each installer to break the price down by component: panels, inverter, mounting structure, cabling, labour, and the net-metering documentation and application work. Then compare quotes on a like-for-like basis — same system size, same equipment tier, same scope of work.
Installed solar pricing in Bangladesh varies a lot, and that’s genuinely a feature of the market rather than a sign something’s wrong. Currency depreciation on imported components, the wide gap between tier-1 branded equipment and cheaper alternatives, and system size all push prices around. Because of that spread, there’s no single “market rate” you can hold a quote against — treat any per-watt figure you see online, including rough Taka-per-watt ranges, as a general starting point for a conversation, not a number to budget against. The only price that matters is the itemized, site-specific one in front of you.
If two quotes for the same system size come in far apart, the gap is almost always explained by one of three things: equipment brand, whether the net-metering paperwork is included, or whether one installer is quietly planning to skip a step the other isn’t.
Understand What Your Warranty Actually Covers
Solar warranties get confusing because “warranty” quietly means three different things, and installers don’t always separate them for you.
| Warranty type | Who provides it | What it typically covers | Typical duration |
| Workmanship warranty | The installer, via your contract | Installation quality — mounting, wiring, roof penetration | A few years, negotiated directly with the installer |
| Manufacturer product warranty | The panel/inverter manufacturer | Defects in the physical equipment | Roughly 10–12 years, varies by brand |
| Performance warranty | The panel manufacturer | Guaranteed output level over time (e.g., panels still producing a defined percentage of rated output) | Often around 25 years, varies by brand |
Bangladesh doesn’t have a widely established statutory minimum warranty period for solar installations the way some countries do, so don’t take an installer’s word for a “legal requirement” at face value — ask them to put the actual terms in the contract instead. The workmanship warranty is the one that depends entirely on the installer being reachable years from now, so it’s worth asking, plainly, what happens to that warranty if the company closes or changes ownership.
Confirm They’ll Actually Handle the Net-Metering Application
This is where a lot of otherwise fine installations quietly go wrong. Getting panels on a roof correctly and getting a system approved for net metering are two different skill sets, and not every installer is equally good at the second one.
A capable installer should be able to walk you through, before installation starts, how they’ll prepare the Single Line Diagram and supporting documents, submit the application to your utility (BREB, DESCO, DPDC, or NESCO, depending on your connection), and follow up if anything’s missing. If you’re a commercial or industrial buyer increasing your sanctioned load past 10kW on a three-phase connection, it’s also worth confirming your installer understands that a load increase of that kind currently requires a net-metered solar system to be part of the application — a detail worth verifying directly with your utility, since requirements like this get updated. Skip this conversation, and you may only find out your installer didn’t handle it properly after your application is sitting rejected at the utility, with no clear path to fixing it quickly.
Ask, specifically: has this installer completed a net-metering application for a system your size, with your utility, in the last year? A vague answer here is more telling than almost anything else on this list.
What Changes If You’re Buying for a Factory or Commercial Building
Everything above still applies, but a few things get more important at scale. Procurement teams should ask for documentation up front rather than after signing — the engineering credentials behind the system design, a formal defect-liability and warranty clause written into the contract, and a clear O&M (operation and maintenance) plan for the years after installation, not just the installation itself. Downtime during installation is also a real business cost in a way it usually isn’t for a household, so ask how the installer plans to sequence the work around your operating hours.
A Quick Way to Check Any Installer
| Check | Why it matters | How to verify |
| Electrical license | Confirms the person doing the wiring is legally qualified | Ask for the license category and number directly |
| SREDA-approved equipment | Non-approved gear risks a rejected net-metering application | Cross-check the proposed brand/model against SREDA’s published list |
| Independent references | Website testimonials are curated; real feedback usually isn’t | Facebook reviews, Google Business reviews, a direct site visit |
| Itemized quote | Lets you compare like-for-like instead of guessing | Request a component-by-component cost breakdown |
| Warranty terms in writing | Verbal promises about warranty length aren’t enforceable | Get workmanship, product, and performance warranty terms in the contract |
| Net-metering track record | Installation quality doesn’t guarantee approval competence | Ask for a recent, size-comparable net-metering application they’ve completed |
None of these checks take long individually. Together, they’re the difference between a system that works quietly for the next 25 years and one that becomes a source of ongoing frustration in year one.
That’s genuinely the standard worth holding any installer to — including us. If you’re comparing quotes right now, it’s worth running this same checklist against Muspana’s process before you decide.
FAQs
What license does a solar installer need in Bangladesh?Â
The electrician or firm should hold a license issued by the Electricity Licensing Board of Bangladesh. Ask specifically whether they hold a full electrical contractor license (able to supervise work independently) or an electrician’s license (valid only under supervision), and ask for the license number.
How do I know if solar equipment is genuinely approved for use in Bangladesh?Â
Check the proposed panel and inverter brand and model against SREDA’s published list of approved equipment. If an installer can’t or won’t tell you the exact brand and model before you sign, treat that as a red flag.
How many quotes should I get before choosing a solar installer?Â
At least three, itemized by component — panels, inverter, mounting, labour, and net-metering paperwork — so you’re comparing the same scope of work rather than just a bottom-line number.
What’s the difference between a manufacturer warranty and a workmanship warranty?Â
The manufacturer warranty (roughly 10–12 years for equipment, and often around 25 years for guaranteed output) comes from the panel or inverter maker and covers the hardware. The workmanship warranty comes from your installer and covers the quality of the installation itself — and it’s only as reliable as the installer’s own longevity, so get its terms in writing.
Can a bad installer really get my net-metering application rejected?Â
Yes. Applications get rejected or delayed most often because of unapproved equipment, incomplete documentation like the Single Line Diagram, or missing earthing details. A good installer should be able to describe their net-metering track record before you sign, not after something goes wrong.
