The unit price on a solar equipment quote rarely tells the full story. Incoterms, payment structure and import duties can shift landed cost by a double-digit percentage — and get a shipment stuck at customs if they're misunderstood. Here's how experienced procurement teams structure international solar equipment orders.
Why Payment Terms Matter as Much as Unit Price
Two suppliers quoting the same Sungrow inverter model at the same headline price can represent very different total cost and risk once payment terms, freight responsibility, and financing cost are factored in. A lower unit price with a demanding 100% advance payment and no documentary protection can be more expensive in risk-adjusted terms than a slightly higher price with a standard 30/70 split against shipping documents. Procurement teams evaluating competing quotes should normalize for Incoterm, payment structure, and delivery timeline before comparing headline numbers — comparing FOB against CIF pricing without adjustment is one of the most common ways buyers misjudge which quote is actually cheaper.
FOB, CIF and EXW: What Each Incoterm Actually Covers
Three Incoterms dominate international solar equipment trade. EXW (Ex Works) means the buyer takes responsibility from the factory gate, including export clearance — rarely used for solar equipment because it shifts too much complexity to the buyer. FOB (Free On Board), the most common basis for solar equipment quotes including most of Econo Solar's standard pricing, means the seller's responsibility ends once goods are loaded on the vessel at the origin port; the buyer arranges ocean freight and insurance from that point. CIF (Cost, Insurance, Freight) bundles ocean freight and insurance into the seller's quote, landing goods at the destination port — convenient for buyers without established freight forwarder relationships, but usually at a price premium versus arranging freight independently.
| Incoterm | Seller Responsible For | Buyer Responsible For |
|---|---|---|
| EXW | Making goods available at factory | Everything else, including export clearance |
| FOB | Export clearance + loading on vessel | Ocean freight, insurance, import, delivery |
| CIF | Freight + insurance to destination port | Import clearance, duties, inland delivery |
Letters of Credit vs T/T: Choosing the Right Payment Instrument
A letter of credit (L/C) is a bank-issued guarantee that the seller will be paid once agreed shipping documents are presented, giving both parties security without requiring pre-existing trust — common on larger first-time orders or into markets with foreign exchange controls, though L/C fees and the documentation burden add cost and time. Telegraphic transfer (T/T) — typically a deposit paid on order confirmation with the balance paid before or against shipping documents — is simpler and cheaper in bank fees, and is the default once a buyer-supplier relationship has an established payment track record. Which instrument makes sense depends heavily on order size, relationship history, and the destination country's banking and FX environment; first orders into a new market often justify the extra L/C cost purely for the payment security it provides.
Deposit Structures and Milestone Payments
A 30% deposit with 70% balance against shipping documents or before delivery is the most common structure in the solar equipment trade, though large custom orders — bespoke BESS configurations or project-specific mounting systems, for example — sometimes carry a higher deposit or a milestone schedule tied to production stages. Buyers negotiating a deposit structure should weigh cash flow impact against the leverage a larger deposit gives on manufacturing priority and delivery scheduling, particularly during periods of high global demand when factory capacity is the real constraint, not price.
Import Duties, VAT and Landed Cost
Under FOB and CIF terms, the buyer is responsible for import duties, VAT, and customs clearance at the destination — costs that are easy to underestimate when comparing supplier quotes on unit price alone. Solar equipment duty rates vary widely by country and sometimes by component type, and several markets have introduced anti-dumping or safeguard tariffs on specific PV cell or module origins that can add a meaningful percentage to landed cost overnight. Building a landed cost model — unit price plus freight, insurance, duty, VAT, and inland transport — before comparing supplier quotes is the only reliable way to know which offer is actually cheapest once the equipment clears customs. Some buyers also overlook local content or bonded-warehouse rules that can defer duty payment or reduce it entirely for equipment destined for a licensed renewable energy project — worth checking with a local customs broker before assuming the standard duty rate applies.
Negotiation Checklist for Procurement Teams
- Normalize competing quotes to the same Incoterm before comparing price
- Confirm current duty rates and any anti-dumping tariffs for your destination country and equipment origin
- Match payment instrument (L/C vs T/T) to order size and relationship history, not just habit
- Get production lead time and payment milestones in writing, tied to specific manufacturing stages
- Confirm who holds risk of loss at each stage of transit, and whether marine insurance is included or must be arranged separately