sajib

Most people who start looking into solar power get a quote, a glossy brochure, and not much else. Nobody explains what actually happens between signing the contract and flipping the switch on a working system. That gap is where a lot of anxiety lives — will they damage the roof, how long is this going […]

You’ve run the same rooftop array through two different pieces of software, and the annual yield numbers don’t match. Now you’re staring at two reports, a client waiting on a proposal, and a nagging question: which number do you actually put in front of them? This happens constantly in commercial solar design, and it’s not

Somewhere on a rooftop in Dhaka, there’s a solar panel lying almost flat because the installer said “this is how everyone does it here.” It’s not producing what it should. Maybe 15% less than it could, month after month, quietly. Multiply that across a full system’s lifetime and you’re talking about a real chunk of

A solar site survey either saves you from an expensive mistake three weeks into the install, or it doesn’t happen at all — and you find out the hard way. Anyone who’s spent a few seasons doing rooftop assessments in Dhaka, Chattogram, or out in the char areas of Rangpur knows this isn’t a throwaway

Most roofs in Bangladesh can carry solar panels just fine. The ones that can’t usually fail for one of two pretty ordinary reasons — the roof is older than anyone wants to admit, or there’s a water tank, dish antenna, and staircase cover eating up half the usable space. It’s rarely the dramatic thing people

There’s a specific kind of sinking feeling you get when a rooftop solar system in Dhaka is producing 18% less than what was promised on paper, and the client is standing there with the PVsyst report you handed them six months ago. Somewhere between the design table and the roof, a water tank, a neighbour’s

If you’ve ever stood on a tin-roof rooftop in Savar or Cumilla with an electrician arguing over whether 4mm or 6mm cable is “enough” for your panels, you already know the real problem — everyone has an opinion, and almost nobody shows you the math. So here’s the number first, then we’ll get into why

You’re staring at a solar quote from a vendor in Dhaka or Chattogram, and something looks off. Your panels add up to 6kW, but the inverter they’ve recommended is only 5kW. Is that a typo? Did they downgrade you to save money? Or is this actually how it’s supposed to work? If you’ve been down

If you’ve ever sat through a two-hour load shedding stretch in Dhaka watching your IPS beep its low-battery warning, you already know why battery bank sizing matters. Get it wrong on the small side and you’re back in the dark before the grid comes back. Get it wrong on the big side and you’ve spent

If you’ve ever sat through a two-hour load shedding stretch in Mirpur or watched your inverter battery die halfway through a Rajshahi summer night, you already know why this matters. Most people who go looking for a solar or backup system in Bangladesh don’t start with panels. They start with frustration. And the very first