Solar BOS Kit & PV System Auxiliary Components — One BOM, One Container
Typical solar BOS procurement structure
PV modules + inverter + battery + mounting system + DC protection + cabling = one integrated BOM delivered in one container.
OmniSol Global is a solar BOS sourcing integrator in Xiamen, China. Distributors, EPCs and importers use us to source a complete PV system auxiliary components scope — mounting, cable, connectors, DC/AC protection, combiners, distribution and storage — as one BOM, consolidated through audited partner factories into a single container. Start from a product group below, or send your full BOM for a factory-direct quote.
Tier-1 and current-equivalent solar panel families sourced with mounting systems, inverters, cables and BOS parts for complete project BOMs.
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Roof, ground, carport and balcony mounting systems with engineering support for wind, snow and layout design.
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PV DC cables, MC4-compatible connectors, inline fuse/diode connectors and T-branch wiring accessories for project BOMs.
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DC protection, combiner boxes, AC protection and distribution boards organized as one electrical BOS sourcing family.
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Feature-coded OmniSol storage SKUs for LiFePO4 batteries, OmniSol inverter sourcing, hybrid/off-grid inverters, integrated storage systems and portable power stations grouped for storage RFQs.
Open groupSolar BOS & PV System Procurement Solution
One MOQ across categories
A single category rarely meets factory minimums; combined across mounting, cable, protection and combiners, a modest project reaches workable MOQs. small-order guide →
One container, one QC, one document set
Mixed loading nests heavy structural parts with light electrical items in one FCL, cutting landed cost and clearance complexity. Cost breakdown → Shipping & export →
Engineered BOM, not a parts list
Use the configurators to size strings, cable, protection and budget before you request a quote. PV System Configurator → Solar BOS Calculator → Wind Load Calculator →
BOM Consolidation & FOB Container Shipping
Most EPC buyers in Africa and the Middle East do not start with a perfect SKU list. They start with project size, voltage class, destination port and certificate requirements, then need the component scope turned into a quote-ready package.
Send the project context
Share site country, system size, voltage class, mounting type, required documents and target delivery window.
Map the component scope
OmniSol groups mounting, cable, connectors, protection, combiners, distribution and storage accessories into a structured quote format.
Plan mixed loading early
Heavy structural parts and lighter electrical cartons are planned together so the packing list, pallet labels and loading photos match the receiving plan.
Check documents before shipment
QC photos, certificate files, commercial invoice, packing list and bill of lading details are reviewed as one export document set.
Ready for a structured BOS quotation?
Send your solar BOM sourcing scope and we will map it to available SKUs, note certificate availability, estimate lead time and suggest mixed-container packaging.
Explore BOS System Resources
Solar BOS Calculator
Build a preliminary BOS purchasing scope before formal RFQ.
Open resourcePV System Design Guide & Configurator
Estimate strings, inverter sizing and budget bands for C&I projects.
Open resourceMounting System Cost Breakdown
Compare structure, packing, freight and landed-cost factors.
Open resource1500V DC Cable Selection Guide
Select 1500V DC cable, connectors, protection and combiner ratings.
Open resourceRepresentative Project Configurations
Indicative system configurations representative of the project types we source and consolidate. Component scopes are shown without client or supplier identification; figures are typical and confirmed per project on a finalised BOM.
Off-Grid Hybrid Power System — West Africa
Multi-power-class hybrid inverters · LiFePO4 storage · full BOS · FOB China, single consolidated shipment
- Hybrid inverters
- Low-frequency hybrid inverters across four power classes (1.5 / 3.8 / 5 / 11 kVA), parallel-capable at the top class — ~85 units in a typical batch
- PV modules
- ~500 × high-efficiency monocrystalline / TOPCon modules
- Energy storage
- LiFePO4 battery modules, Grade-A cells, 6,000-cycle rated, 5-year warranty — ~75 units across capacity classes
- Electrical BOS
- DC/AC protection, breakers, cabling, connectors and distribution — full balance-of-system scope
- After-sales
- OEM / brand service presence in the destination market; spare-parts provision shipped with the order
- Commercial
- FOB China port (Ningbo / Xiamen) · 30% T/T deposit, 70% against B/L copy, or L/C at sight
A diesel-replacement / unreliable-grid use case: inverters, batteries, panels and BOS matched as one procurement package and consolidated for a single destination.
Sourcing a similar off-grid or hybrid system? Send your BOM →
Commercial Rooftop PV — Singapore, 2.3 MWp
Grid-tied · concrete flat roof · ballasted east–west layout · FOB China supply scope
- PV modules
- ~3,900 × 590 W TOPCon class (~2.30 MWp DC)
- String design
- 150 strings × 26 modules, 1,500 V DC class
- Inverters
- 16 × 125 kW or 8 × 250 kW string inverters, DC/AC ≈ 1.15
- Mounting
- Aluminium ballasted tilt frames, east–west 5–10°; ballast blocks sourced locally (excluded from FOB scope by design)
- Electrical BOS
- 1,500 V DC cable, connectors, DC/AC protection, combiner boxes
- Engineering basis
- Preliminary ballast sizing per ASCE 7-22 + SEAOC PV2 methodology; final design verified by a locally registered PE to the applicable national annex
- Logistics
- ~8 × 40HQ consolidated; single QC and shipment plan
- Commercial
- FOB China port · indicative FOB band USD 530k–690k (~$0.23–0.30 / Wp DC) · grid-tied PV scope only, storage quoted separately
A commercial rooftop scope showing how modules, string inverters, 1,500 V BOS and a ballasted mounting system are configured to a single project and shipped as one consolidated container set.
Planning a commercial rooftop project? Send your BOM → | PV System Configurator →
Sourcing a solar BOS kit — common questions
What is a solar BOS kit?+
A solar BOS (Balance of System) kit is everything in a PV installation except the panels and inverter — mounting structures, PV cable, MC4 connectors, DC and AC protection, combiner boxes, distribution boards and storage accessories. OmniSol does not sell a fixed bundle: we configure each kit from your project bill of materials so quantities and ratings match the actual array, then consolidate it through audited partner factories into one shipment.
Can I source PV system auxiliary components wholesale from China with a small first order?+
Yes. A single category rarely meets a factory's minimum order quantity, but combined across mounting, cable, protection and combiners, even a modest project reaches workable MOQs in one consolidated order. See the small-order guide for how small first orders are combined to a workable minimum.
Which BOS components can be combined in one container?+
Mounting systems, PV cable, connectors, DC protection, AC protection, combiner boxes, distribution boards and storage accessories can all ship together. Mixed loading nests heavy structural parts with light electrical items in a single FCL, so you receive the full BOS kit under one QC report and one document set.
Do you supply 1500V DC BOS components?+
Yes. PV cable, connectors, DC protection and combiner boxes are available in 1500V DC ratings for utility-scale blocks. See the 1500V Solar BOS Selection Guide for component selection and coordination.
How do I get a quote for a complete BOS kit?+
Send your project bill of materials — categories, quantities, voltage class and required certificates — and we map it to available SKUs, check certificate availability and return a structured factory-direct quote. Send your BOM or use the RFQ checklist to prepare it.
What is included in a solar BOS kit BOM?+
A solar BOS kit BOM normally includes mounting hardware, PV cable, connectors, DC protection, AC protection, combiner boxes, distribution boards and storage accessories. OmniSol reviews the project scope and turns those lines into a procurement-ready BOM with quantities, ratings, packing notes and document requirements.
How does a one-container solar procurement system work?+
A one-container solar procurement system combines heavy structural items and lighter electrical cartons into one planned shipment. The component scope, QC photos, packing list, export documents and loading sequence are checked together so EPC buyers receive one clearer landed-cost package.