SLG Renewables supplies and installs complete solar power systems across Bangladesh — on-grid, off-grid and hybrid. Panels, inverters, storage, controllers and protection are specified together, because a system is only ever as good as the part that was guessed.
Charge controllers
Confirmed against the design before anything is ordered.
Bangladesh has introduced an incentive package for rooftop solar with battery storage. Surplus electricity sent to the grid is measured and paid for by the distribution company, and the benchmark generation cost is set at Tk 8 per unit — if a system runs below that, the difference stays with the owner.
Tk 10.50per unit
Grid-feed tariff
The fixed purchase tariff for surplus electricity sent to the grid under the new incentive package.
28 Feb 2027
Installation deadline
A system has to be installed within this period to qualify for the package at all.
28 Feb 2030
Benefit runs until
Three years of the incentive for installations that qualify before the deadline above.
180 days
Duty and tax relief
Most duties and taxes on imported solar machinery and spare parts are waived for this window.
Equipment must meet BSTI and SREDA technical standards. Figures from government incentive announcements reported on 9 September 2026 — confirm current terms with us before committing to a system.
Which one a building needs comes down to what the grid does there, and what has to keep running when it stops.
Tied to the mains, no batteries
Generates alongside the grid and offsets what the building draws during daylight. With no storage to buy or replace, it is the shortest payback of the three, and the simplest to keep running.
Suits: Buildings with reliable mains that want a lower bill
Stands alone on battery storage
The array charges a battery bank and the building runs from it. Sized around what has to keep running overnight rather than around roof area, because the storage is what sets the limit.
Suits: Sites the grid does not reach, or cannot be relied on
Grid-connected, with storage behind it
Solar through the day, battery through an outage, grid when neither is enough. It costs more than on-grid and it delivers what on-grid cannot: the lights stay on when the area goes dark.
Suits: Buildings that need both a lower bill and continuity
Supplied together and commissioned together, so there is one party responsible when something needs looking at.
The array, sized to the roof, its orientation and what the building actually consumes rather than what fits.
DC from the array into AC the building can use. Which inverter the design needs follows from the system type, not the other way round.
Regulates what reaches the battery bank and holds it inside the charge profile its chemistry requires.
Lead-acid, lithium or commercial banks, matched to the inverter and to the backup duration the building actually needs.
Structures for pitched roofs, flat roofs and ground arrays, set out for the dead load and the wind load.
DC and AC protection, isolation and earthing, so a fault stops at the equipment rather than travelling into the building.
Four stages, one office. The people who size it are the people who come back to it.
The bill, the roof and the shading decide the array. A system sized from roof area alone is either short of what the building uses or paying for output it will never take.
Array, inverter, controller and storage specified together. Each one constrains the others, so specifying them separately is how a system ends up with a bottleneck nobody planned.
Mounted, wired, protected and earthed by the same office that supplied the equipment. No handover to a subcontractor in the middle.
Tested against the design it was sold on, then maintained by the people who installed it. Parts come from the same place they originally did.
Equipment is only half of it. The array is mounted, wired, protected and earthed by the same office that supplied it, and maintained by the same people afterwards — which is the part that decides whether a system is still producing in year five.
Send the monthly consumption, the roof and what has to stay on during an outage. We will come back with a system and a price.
