With hundreds of solar companies operating in Bangladesh, choosing the right EPC partner is critical. This comprehensive guide covers what separates a true solar EPC company from a vendor, the complete SREDA approval and net metering process under the 2025 guidelines, how to evaluate equipment quality, and what to expect from a professional solar project in Bangladesh.
Bangladesh's solar industry has expanded dramatically over the past decade. SREDA's national database now records thousands of net-metered rooftop installations, and the government's Renewable Energy Policy 2025 has set an ambitious target of generating 40% of national electricity from clean sources by 2041. Yet the quality gap between solar companies in Bangladesh remains enormous — and choosing the wrong EPC partner can mean an undersized system, substandard equipment, failed regulatory approvals, and no after-sales support when problems arise. This guide gives you the complete picture: what a genuine solar EPC company does, how the SREDA approval and net metering process works under the 2025 guidelines, what equipment to insist on, and what questions to ask before signing any contract.
EPC stands for Engineering, Procurement and Construction. A genuine solar EPC company in Bangladesh manages the complete project lifecycle under one contract: site survey and solar resource assessment, system design and single-line diagram (SLD) preparation, equipment procurement from approved manufacturers, civil and electrical installation, SREDA product registration, net-metering application to BPDB/DESCO/DPDC/BREB, commissioning, and long-term operation and maintenance (O&M). A company that only supplies panels, or only installs without handling approvals, is a vendor or subcontractor — not an EPC contractor. This distinction matters because only a registered EPC company can legally submit net-metering applications on your behalf, and only an EPC company is accountable for the system's performance over its full 25-year lifespan.
| Role | What they do | Can handle SREDA/net metering? |
|---|---|---|
| Solar EPC company | End-to-end: design, supply, install, approve, commission, O&M | Yes — full responsibility |
| Solar vendor / supplier | Sells panels, inverters, mounting hardware | No |
| Solar installer / contractor | Installs equipment supplied by others | No |
| Solar consultant | Advises on design and procurement only | No |
SREDA — the Sustainable and Renewable Energy Development Authority — is Bangladesh's regulatory body for all renewable energy projects. For any grid-connected solar installation, SREDA approval is required at two levels: product approval (the panels and inverters you use must appear on SREDA's official approved product lists) and EPC company registration (the company installing the system must be listed on SREDA's Experienced EPC Companies register). Without both, the utility — whether BPDB, DESCO, DPDC, NESCO, WZPDCL, or BREB — will not accept your net-metering application.
SREDA maintains a live approved product database at solar.sreda.gov.bd. As of mid-2026, the list includes over 175 approved solar module models and over 185 approved three-phase inverter models. All key components must carry BSTI certification and appear on this list before installation. Using a non-approved panel or inverter — even a globally recognised brand — will result in application rejection at the evaluation stage.
In August 2025, the Government of Bangladesh officially approved the Net Metering Guidelines 2025, the most significant update to net metering policy since the programme began. The new guidelines expand eligibility, increase maximum system capacity, and introduce an online application portal at nem.powerdivision.gov.bd that replaces the previous manual, office-based process. Key changes are summarised below.
| Feature | Old Guidelines | Net Metering Guidelines 2025 |
|---|---|---|
| Eligible consumers | 3-phase only (LT, MT, HT) | Single-phase consumers now included |
| Maximum system capacity | Up to 70% of sanctioned load | Up to 100% of sanctioned load |
| Meter type | Postpaid meters only | Prepaid and smart meters now eligible |
| Payment method | Bill adjustment only | Direct payment to bank or mobile banking (bKash/Nagad) |
| Application process | Offline/manual at utility office | Online portal — nem.powerdivision.gov.bd |
| Mandatory solar for load increase | Not required | Required when increasing load on 3-phase ≥10 kW connections |
| Minimum system for 3-phase ≥10 kW | Optional | Minimum 5 kW solar system now mandatory |
One of the most consequential changes in the 2025 guidelines is the mandatory solar clause: if you apply to DESCO, DPDC, or BREB to increase your electricity sanctioned load and your existing connection is already 10 kW or above on a three-phase supply, you are now legally required to install a net-metered rooftop solar system before the load increase is approved. Many factory and building owners are unaware of this requirement — and discovering it mid-project causes significant delays.
Under the 2025 guidelines, the net metering application process is structured into six time-bound stages, all managed through the online portal. Understanding each stage helps you plan your project timeline accurately and avoid the most common causes of delay.
The most common technical mistakes that delay net metering approval in Bangladesh are: SLD showing no anti-islanding protection; system capacity exceeding sanctioned load (even fractionally — the 2025 guidelines allow up to 100% but not above); incomplete earthing design; using non-SREDA-approved equipment; and applying with outstanding electricity bills. A professional EPC company handles all of these issues as part of the standard project process.
Equipment quality is the single largest determinant of a solar system's long-term performance. Bangladesh's climate — high humidity, monsoon dust, salt air in coastal areas, and temperatures regularly exceeding 35°C — is demanding for solar equipment. Cheap panels and inverters that perform adequately in temperate climates often degrade significantly faster in Bangladesh's conditions. When evaluating a solar proposal, focus on three categories of equipment.
Insist on Bloomberg NEF Tier-1 manufacturers — this classification indicates the manufacturer has bankable financing and a track record of quality production. In Bangladesh, the most widely deployed Tier-1 brands are Jinko Solar (Tiger Neo N-type series), JA Solar (DeepBlue series), and Canadian Solar (HiKu series). N-type monocrystalline panels offer higher efficiency (typically 21–23%), better low-light performance, and lower temperature coefficient than older P-type panels — meaning they lose less output on hot Bangladesh afternoons. All panels must appear on SREDA's approved module list and carry BSTI certification.
The inverter converts DC power from your panels into AC power for use in your facility and export to the grid. For industrial and commercial systems in Bangladesh, Huawei SUN2000 series, Growatt, and Solis string inverters are the most commonly specified brands, all of which appear on SREDA's approved inverter list and have local warranty and service support in Bangladesh. For hybrid systems with battery storage, Growatt SPH and Solis hybrid inverters are the most established options. Avoid inverters from manufacturers with no local service presence — a faulty inverter with no local support can leave your system offline for months.
Mounting structures must be designed for Bangladesh's wind load conditions — particularly for coastal and cyclone-prone areas. Hot-dip galvanised steel or anodised aluminium structures with appropriate wind load ratings are standard. Balance-of-system components — DC and AC cables, MC4 connectors, combiner boxes, surge protection devices, and earthing kits — should all be specified to IEC standards. Substandard cabling is a common cause of system fires and performance degradation in Bangladesh.
Solar EPC projects in Bangladesh span a wide range of industrial and commercial sectors. Each sector has different load profiles, roof structures, and regulatory considerations. The table below summarises the most active sectors for industrial rooftop solar in Bangladesh.
| Sector | Typical system size | Key benefit | Net metering utility |
|---|---|---|---|
| Garment & RMG factories | 500 kWp – 3 MWp | Offset peak daytime load, reduce DESCO/DPDC demand charges | DESCO / DPDC |
| Pharmaceutical plants | 200 kWp – 1 MWp | Reduce grid dependency, ESG reporting | DESCO / DPDC |
| Cold storage & food processing | 100 kWp – 500 kWp | Offset compressor load during daylight hours | BREB / BPDB |
| Hospitals & clinics | 50 kWp – 300 kWp | Uninterrupted power, reduce operating costs | DESCO / DPDC / BREB |
| Universities & colleges | 50 kWp – 500 kWp | Sustainability mandate, reduce utility bills | DESCO / BREB |
| Poultry & agro-processing | 100 kWp – 1 MWp | Offset feed mill and processing load | BREB |
| Jute & textile mills | 500 kWp – 2 MWp | Reduce peak demand charges | BREB / BPDB |
| Government buildings | 50 kWp – 500 kWp | Compliance with government solar mandate | BPDB / DESCO |
Vvon Technologies Limited is one of Bangladesh's most experienced solar EPC companies, having delivered projects since 2017 across garment factories, pharmaceutical manufacturers, hospitals, universities, cold storage facilities, and government buildings. Solar EPC is one of six engineering verticals operated by Vvon — alongside nuclear medicine imaging, scientific laboratory equipment, medical education technology, nanotechnology instruments, and gas safety systems.
Vvon's solar portfolio includes the 1,503 KWp rooftop solar plant at Akij Agro Feed Ltd., the 1,130 KWp installation at Ahad Jute Mills, and solar projects at BUET, KUET, and multiple RMG factories across Dhaka and Chittagong. We are a SREDA-registered EPC company and authorised distributor for JA Solar, Jinko Solar, Canadian Solar, Huawei, Growatt, and Solis in Bangladesh — all brands on SREDA's approved product list.
| What Vvon provides | Details |
|---|---|
| Free site survey & feasibility study | Shadow analysis, roof load assessment, system sizing, yield projection |
| Engineering & SLD preparation | SREDA-compliant SLD, string diagram, earthing diagram, layout plan |
| SREDA-approved equipment supply | Jinko Tiger Neo, JA DeepBlue, Canadian Solar HiKu, Huawei SUN2000, Growatt, Solis |
| Net metering application management | Full 6-stage process from nem.powerdivision.gov.bd submission to meter installation |
| Civil & electrical installation | Galvanised mounting structures, IEC-rated cabling, surge protection, earthing |
| Commissioning & testing | String current testing, IV curve tracing, grid synchronisation, monitoring setup |
| Annual O&M contract | Panel cleaning, inverter health checks, remote monitoring, performance reporting |
Under the Net Metering Guidelines 2025, the utility has a maximum of 10 working days to complete the location inspection and a maximum of 15 working days to complete the evaluation-to-agreement stage. In practice, the full process from application submission to meter installation typically takes 2–4 months, depending on the utility and the completeness of your engineering documentation. Projects where the EPC company submits a complete, accurate design package on the first attempt move significantly faster.
Under the Net Metering Guidelines 2025, your solar system capacity cannot exceed 100% of your sanctioned load. For example, if your sanctioned load is 500 kW, your solar system can be up to 500 kWp. Previously, the limit was 70% of sanctioned load — the increase to 100% is one of the most significant changes in the 2025 guidelines, allowing larger systems and faster payback periods.
Yes — the Net Metering Guidelines 2025 extended eligibility to single-phase consumers for the first time. Previously, only three-phase consumers (LT, MT, HT) were eligible. Single-phase residential and small commercial consumers connected to BREB, DESCO, DPDC, NESCO, WZPDCL, or BPDB can now apply through the online portal at nem.powerdivision.gov.bd.
Under the 2025 guidelines, excess solar energy exported to the grid is credited against your electricity bill. If your credits exceed your consumption in a given month, the surplus can be carried forward to the next billing cycle. For consumers who generate significantly more than they consume, the 2025 guidelines also introduced direct payment to a bank account or mobile banking service (bKash/Nagad) — a significant improvement over the previous bill-adjustment-only system.
Yes, under the Net Metering Guidelines 2025, if you are applying to increase your electricity sanctioned load and your existing connection is 10 kW or above on a three-phase supply, you are required to install a minimum 5 kW net-metered rooftop solar system before the load increase is approved. This mandatory solar clause applies to consumers of DESCO, DPDC, BREB, and other distribution utilities. Many building and factory owners encounter this requirement unexpectedly during load increase applications.