An ODM solar product specification should explain the product you need and how you will decide whether it meets the brief. A list of preferred components is useful, but it cannot replace the intended use, operating environment and acceptance process.
We suggest a requirements document that separates confirmed requirements, targets and open decisions. This helps the brand and development team discuss feasibility without presenting every early preference as a fixed contractual commitment.
Describe the user and the job
Identify who uses the product, what it must do and where it will operate. Describe a normal day, an inconvenient day and a period with little useful solar input. State which functions must continue and which may be deferred.
Keep outcomes separate from proposed solutions. “Fits the specified equipment compartment” is a product requirement; a particular enclosure concept is one possible implementation. This distinction leaves room to compare designs while preserving the essential use case.
Define the boundaries of the supplied product
List what is included: module, enclosure, controller, storage, cables, connectors, accessories, firmware, software or packaging as applicable. Identify customer-supplied equipment and third-party interfaces.
Confirm whether the project concerns a complete finished product or a solar subsystem. Otherwise, each team may assume the other is responsible for charging behaviour, user instructions or a missing accessory.
Record operating scenarios and constraints
Provide available space, weight targets, mounting conditions, expected light exposure and relevant environmental risks. Include handling, storage and transport where they affect design. Distinguish a target from a hard limit and state why a limit exists.
Use measured load information when available. If a power budget is still being developed, identify the owner and the decision it must support. A daily-energy target should not be treated as equivalent to a panel’s rated power.
Give interfaces their own section
Define electrical connections, input limits, polarity, connector references, mechanical attachment and any data or content-update workflow. Include the viewing direction and revision of interface drawings.
For software-related features, describe the required behaviour and operating environment without assuming that an existing platform provides every integration. Record access, account, update and support responsibilities before promising interoperability.
Make acceptance evidence visible
For each important requirement, identify how it will be reviewed: drawing inspection, dimensional measurement, functional demonstration, environmental test or user trial. Define the sample configuration and who accepts the result.
Where certification or a particular standard is required, obtain suitable market and technical review. A development brief should identify the requirement and responsibility; it should not declare unverified compliance.
| Requirement record | Example of useful detail |
|---|---|
| Identifier and purpose | Which user need does this requirement support? |
| Status | Confirmed, target or unresolved |
| Verification | Method and representative configuration |
| Owner | Who supplies information and accepts the result? |
| Revision | Which drawing, sample or software version applies? |
A filled requirement record: mechanical fit
The following is an illustrative record, not a customer specification or a SiborTech test result. It shows how to assign evidence without inventing dimensions.
| Field | Illustrative entry |
|---|---|
| Requirement ID | R-MECH-01: module installation fit |
| Required outcome | The module, cable exit and connector fit the mounting area defined by the approved enclosure drawing. |
| Input owner | The customer mechanical engineer supplies the drawing revision, installation orientation and service-access constraints. |
| Verification | Review the controlled drawing, then inspect a representative assembly with the connector and cable installed. |
| Acceptance evidence | Document conformity to the agreed drawing and the absence of interference along the approved mounting and cable route. |
| Open decision | Keep the requirement provisional until the input drawing and acceptance owner are confirmed. |
Electrical output, environmental protection and device autonomy need their own requirements and evidence. Passing a fit check does not approve those separate functions.
Agree commercial responsibilities explicitly
Put sample quantities, development deliverables, approval stages, proposed timing and production assumptions into the discussion. Tooling, design files, intellectual property, warranty and third-party software rights require explicit agreement. They should not be inferred from the label “ODM”.
Ask for uncertainties and exclusions to be recorded with the quotation. This is practical project guidance, not a substitute for review of the applicable contract.
Control changes after the brief is approved
A change to dimensions, battery, connector, software workflow or market requirements may affect cost, validation and timing. Keep a change log showing the request, reason, affected documents and approval.
Use a review meeting to close the largest unknowns before treating a prototype as production-ready. The goal is a shared decision record that engineering, sourcing and operations can all use.
What to send for an initial discussion
A short use-case description, an enclosure sketch, known electrical interfaces, expected quantity and an honest list of open questions are enough to begin a feasibility conversation. Refine the document as evidence arrives rather than filling gaps with invented specifications.
See our custom solar development process and RFQ preparation checklist. Share your product brief with us so we can define the solar-development scope and the next review stage.
