Specification
The plant restates kW, DC volts, MPPT channels and grid voltage. A missing cell stays empty.
Supplier matching
PV inverter manufacturers: compare quotes on one basis
The task on this page is to make two plants answer the same columns. GridLink Sourcing does not rank a factory, visit it, or treat a sales deck as an audit. Proposed suppliers stay proposed until their documents name the model on the quote.
- SpecificationRated AC power, DC window, MPPT count, phase, protocol.
- QuantityUnits, systems or a project lot, with spares called out.
- DestinationUS delivery point, dock limits and who pays freight.
- TimingRequested window, separate from any promised ship date.
Four columns that make a quote comparable
Quantity
The same unit of measure on every offer, including whether spare fans or fuses are inside the count.
Delivered scope
Packaging, freight, taxes, connectors and the point where the seller stops.
Supplier documents
Datasheet and drawing bound to the model code. Certificates are requested, not assumed.
Files to request for the quoted model
- Current datasheet with rated AC power and efficiency test basis named, such as CEC weighted or European, without a number invented here.
- Dimensional drawing showing conduit entry, clearance and weight.
- Communication protocol manual, including register map if monitoring is in scope.
- Enclosure rating statement and operating temperature range for that model.
- Applicable US safety listing or certification record, asked for by file number and holder.
- Warranty text that says what is covered, for how long, and who performs replacement.
A family brochure does not answer this list. An ISO 9001 certificate, when offered, is a quality-system document to verify against the legal entity that would sign the quote. It is not a product listing.
Approvals that remain open
| Item | Who still owns it |
|---|---|
| Stringing, DC-to-AC ratio and conductor sizing | Project electrical engineer |
| Interconnection and utility paperwork | The party named on the application |
| Roof or pad structural check | Structural reviewer |
| Rapid shutdown and local code path | Qualified installer or engineer of record |
| Whether a grid-forming inverter or a grid-following unit is required | The study that defines the operating mode |
| Battery transport papers, if a hybrid scope includes cells | The battery supplier and the shipper |
Compare central or string equipment and module-level equipment on shade, service access, monitoring and device count, as described in the US Department of Energy inverter overview. That overview does not approve a proposed product. If storage is in the purchase, ask the qualified reviewer to define the AC-coupled or DC-coupled interface and keep usable capacity on the storage line.
Compare the inquiry cards, then use the contact form or the article checklist when the columns are ready.
| Column | What two plants should both fill |
|---|---|
| rated power | 40 kW, 75 kW, 150 kW or the study value |
| MPPT | 3, 8 or 16 channels, paralleling stated |
| maximum power voltage | module-string Vmp, compared with the inverter MPPT operating window |
| open-circuit voltage | cold-condition string Voc, checked against the absolute DC input limit |
| string current | per-input limit such as 14 A, 26 A or 30 A |
| maximum system voltage | the DC class the model is built for |
| DC-to-AC ratio | the ratio the plant assumed, such as 1.18 or 1.32 |
| enclosure rating | the stated NEMA or IP figure for that cabinet |
| module efficiency | not an inverter field; park it on the module line |
| grid-forming inverter | supported, not supported, or unstated |
| bidirectional inverter | charge kilowatts if the same converter is proposed |
| thermal management | air, fan or liquid, plus a 40 C or 50 C rating if printed |
| SCADA | protocol and whether 16 or 64 status points are mapped |
Send the columns, not a slogan
Product, quantity, destination, a budget basis if you have one, and the supplier preference you want plants to hear. The desk coordinates quotes. It does not clear a price as final.
Review questions in the equipment planner first