Qualifying solar suppliers on landed cost, not list price

The challenge: the cheapest panel is rarely the cheapest panel

Solar distribution into West Africa is quoted on list price and settled on landed cost. Between the two sit freight, duties, financing terms, breakage, lead-time risk and the cost of a warranty that cannot be exercised at distance.

A distributor buying on list price is buying on the one number that is comparable and nearly irrelevant. The discovery happens at the warehouse door.

The approach: qualify to a checklist, then price the whole path

Supplier qualification, RFQ and pro-forma cycles were run to a checklist, with factory-visit coordination where the qualification warranted it, and landed-cost discipline applied over the top so candidates were compared on what the goods actually cost delivered.

The manufacturers worked with include Growatt, Deye, JA Solar, LONGi and Huawei, with energy-storage partners such as CATL for battery systems. That set is not a badge. It is the reason a qualification checklist has anything to compare: these are manufacturers whose specifications and warranty terms can be held against each other.

One correction the checklist enforces, because the market repeats it constantly: BloombergNEF Tier 1 is not a quality rating. BNEF states plainly that it is "purely a measure of industry acceptance", that it does "not directly account for product quality or financial strength", and that there are documented cases of quality failure and bankruptcy among Tier 1 manufacturers. It measures whether a maker has supplied projects financed non-recourse by commercial banks, and the bar differs by product: six projects across six banks for modules, four projects across two banks for inverters. BNEF publishes no Tier 2 or Tier 3 list at all, so any supplier described by a tier below the first is being described by a number nobody issues.

The second correction is where the money is. A module warranty covers the module, not the border. Trina and JA Solar both place customs clearance and duty on a warranty return with the buyer, in writing, and both require the claim to trace to the original supply contract and serial numbers. Trina’s nearest service centre for the region is in Dubai. A distributor that does not keep serial-level records against its own invoices cannot in practice enforce a warranty at all, whatever the datasheet says.

Factory-visit coordination is included where the order size justifies the travel, and excluded where it does not. Visiting a factory is the only way to answer some questions and an expensive way to answer the rest, so the qualification decides which visits are worth making rather than treating the visit as a stage everyone must pass through.

The results: comparable candidates and a coordinated factory route

The venture holds qualified suppliers across panel, inverter and storage classes, RFQ and pro-forma cycles that produce comparable answers, and coordinated factory visits where the money justified the travel.

The engagement is ongoing. The durable part is the discipline: a distributor that prices on landed cost keeps making the same decision correctly after the engagement ends.