Old Dominion Freight Lines is the preferred shipper/freight handler of SUNRNR of Virginia domestically. You may estimate your Freight Collect shipping costs on www.odfl.com, using Origin Zip 22849, weight 440 lb (1 unit), 800 lb (2 units), Class 85, and noting Residential liftgate and delivery if appropriate. Shipping has been averaging $200-$800 within the continental US based on distance from VA. Shipping two units is only about half again as much as shipping one - it is not double, saving significantly by purchasing at least two at a time!
For freight forwarding internationally, we expect 64 units per 40' container. In general, we are seeing quotes at $1500 per unit, ocean, for small orders. This cost comes down to under $100 per unit on container loads. See Purchase in Quantity for distributorship opportunities.