By Vvon Engineering Team | Published | Updated
Compare solar EPC quotations, equipment, project references and support in Bangladesh. Find the right next step for contractor selection, net metering or a site proposal.
Solar EPC & street lighting RFQ checklist (TXT)
Choose a solar company in Bangladesh by the work your site needs: equipment supply, installation, a complete EPC project or support for an existing plant. Compare the written scope, exact equipment, relevant project evidence and after-sales responsibilities before comparing the final price. Vvon accepts solar project enquiries for assessment and quotation; the proposed scope and commercial terms are confirmed for each site.
Use this overview to understand the solar EPC service you need and prepare an initial project brief. Move to the contractor-comparison guide when you are evaluating complete proposals. Related reading: How to choose a solar EPC contractor in Bangladesh: ten questions, and what a good answer sounds like.
| Your requirement | Useful next step |
|---|---|
| Compare contractors or competing quotations | Use the solar EPC contractor checklist to compare responsibilities, exclusions and handover evidence. |
| Prepare a net-metering application | Follow the utility application and document guide. |
| Assess system size and bill savings | Review daytime consumption, sizing and net-metering economics. |
| Discuss your own installation | Review Vvon's solar project scope and request a proposal for your site. |
EPC stands for Engineering, Procurement and Construction. A solar EPC proposal can bring the site assessment, design, equipment procurement, installation and commissioning under one contract, with utility submissions and operation and maintenance included where agreed. A supply-only quotation covers a different scope. Confirm the current application responsibilities with the serving utility and name each party's obligations in the contract, including the warranty and maintenance periods. The EPC label alone does not establish legal eligibility to submit an application or a 25-year performance obligation.
| Role | Possible scope | What to verify |
|---|---|---|
| EPC contractor | Integrated design, supply, construction and agreed additional services. | Named obligations, professional competence and utility requirements. |
| Supplier | Equipment and agreed documentation/support. | Authenticity, model, warranty and supply scope. |
| Installer | Installation and agreed testing. | Competence, design responsibility and commissioning scope. |
| Consultant | Assessment, design or procurement advice. | Professional scope and responsibility for submissions. |
The supplying utility approves the interconnection under the 2025 guideline. SREDA has equipment-standard and enlistment roles. Do not treat inclusion in an experienced-company directory as proof of exclusive legal permission to install or submit an application; verify the current requirements for the proposed work.
Clause 3.8 describes equipment evidence, including applicable standards, testing and model-level enlistment. Check the current record for the exact offered model and the utility's requirements rather than relying on a brand name or a stale count of listed products.
The Power Division's 2025 guideline covers eligibility, capacity, accounting, equipment and the application process. Read the current text and any applicable circulars with the supplying utility.
| Subject | 2025 guideline check |
|---|---|
| Eligibility | Single- and three-phase consumers subject to clauses 3.1–3.2. |
| Capacity | Aggregate AC output limited by sanctioned load and applicable transformer condition. |
| Accounting | Quarterly residual settlement and net-export maintenance deduction. |
| Metering | Approved import/export and renewable-generation accounting arrangements. |
| Application | Hard copy or online submission under clause 3.7. |
| New connection/load enhancement | Obtain the current applicable circular and conditions from the utility. |
For a new connection or load enhancement, ask the utility which current circular and consumer-specific solar requirement applies. Do not assume the net-metering guideline alone imposes a universal minimum 5 kW system on every three-phase account at or above 10 kW.
Clause 3.7 sets the application and approval sequence. Track permission, installation, evaluation and agreement stages with the utility, allowing for the project's equipment and site dependencies.
Before submission, reconcile account names, sanctioned load, inverter AC capacity, transformer details, protection and model evidence. Confirm bill-clearance and site-readiness requirements for the relevant stage.
Equipment, system design, installation and maintenance jointly determine performance. Assess the selected products for the actual heat, moisture, corrosion, soiling and wind exposure rather than treating price or brand as proof of durability.
BloombergNEF's Tier 1 methodology concerns industry acceptance and project financing; it is not product-quality certification or a guarantee of manufacturer financial strength. Compare the exact proposed module's current datasheet, test documentation, temperature coefficient, warranty and suitability for the site. Ask the supplier to identify the approval records applicable to that model and the local warranty process before procurement. Brand names and tier labels do not replace those checks.
Compare the exact inverter's input limits, protection, efficiency, approval evidence, monitoring and local service arrangement. For storage, require manufacturer-confirmed battery/BMS/backup compatibility; a series name does not establish every capability.
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 | Assessment priority |
|---|---|
| RMG | Shift overlap, roof structure and buyer reporting. |
| Pharmaceutical | Measured utility loads and QA change control. |
| Cold storage | Seasonal compressor duty and temperature protection. |
| Health care | Energy offset separate from approved essential power. |
| Education | Academic calendar, multiple meters and maintenance funding. |
| Agro-processing | Seasonal duty, dust and water/process needs. |
| Textile/jute | Multi-shift demand, generator controls and roof condition. |
| Government | Applicable procurement, asset authority and connection requirements. |
Vvon offers solar EPC enquiries alongside nuclear medicine imaging, scientific laboratory equipment, medical and education equipment and nanotechnology instruments. Confirm the proposed solar project scope and responsible specialists with the team.
Vvon's published solar portfolio includes Akij Agro Feed at 1,503 kWp and Ahad Jute Mills at 575 kWp. Request the relevant project evidence and current documents for any claimed manufacturer authorisation.
| Proposal item | Agree in writing |
|---|---|
| Assessment | Survey scope, fees, assumptions and deliverables. |
| Design | Structural/electrical responsibilities and calculations. |
| Equipment | Exact models, current evidence and substitutions. |
| Utility work | Submission responsibilities, fees and dependencies. |
| Installation/testing | Approved methods, safety plan and acceptance records. |
| Operations | Monitoring access, maintenance, parts and response. |
Clause 3.7 g specifies ten working days for the permission process after application; clause 3.7 j allows eight months after permission to complete installation and request verification; clause 3.7 m specifies fifteen working days after that request for agreement formalities or notification of non-compliance. These are defined regulatory stages, not a guaranteed project completion date.
The 2025 guideline defines system capacity using aggregate inverter AC output. Clause 3.3 limits AC output to sanctioned load and, for medium- to extra-high-voltage consumers, to 80% of the transformer or parallel-transformer rated capacity. These are not direct limits on module DC kWp. Confirm the proposed design and any applicable additional conditions with the utility.
Single-phase and three-phase consumers can be eligible under clause 3.3, subject to the applicant and consumer conditions in clauses 3.1–3.2. Confirm your account and equipment requirements with the utility.
Under clauses 3.4–3.5 of the 2025 guideline, billing credits are reconciled quarterly after March, June, September and December. The guideline deducts 10% of net exported electricity as a distribution maintenance charge before crediting the remaining 90%. Residual settlement uses the applicable BERC bulk rate; fixed charges can remain. Check the signed agreement and current utility billing implementation when modelling value.
Ask the supplying utility for the current new-connection or load-enhancement circular applicable to your account, roof and consumer category. Confirm any minimum capacity and conditions in writing before design; a universal 5 kW rule should not be inferred from a general article.
Consult the relevant edition and the documents for the exact equipment and site: Power Division / SREDA: Net Metering Guidelines 2025, English; BloombergNEF: PV module tiering methodology; JinkoSolar: model datasheets, certificates, installation manuals and warranties; JA Solar: model datasheets, warranties and installation documents.
Plan your next step
Before selecting a contractor, turn the proposed plant into a written scope with named responsibilities. The useful comparison is the equipment, engineering, site work and support included in each offer, together with the assumptions behind its generation estimate.
Solar EPC scope: Review Vvon's project services and engineering scope.
Published project examples: Compare the documented sites and project contexts.
Choose a rooftop configuration: Consider the system against your site's needs.