The Crane Date Sets Everything Upstream
A wind or solar construction schedule is not a list of delivery dates, it is a sequence anchored to equipment that is already on site.
Read it in full in the guide
A blade, a transformer, a pallet of modules and a battery enclosure fail in four different ways and ride on four different trailers. We coordinate project cargo, oversized, heavy haul and hazmat capacity so every component lands in erection sequence, inside its permit, and ahead of the interconnection window.
In short
Energy freight is not one cargo, it is five that share a calendar. A rotor blade is long, flexible and comparatively light, so what stops it is turning radius and overhead clearance, never tonnage: the loaded combination can run past 200 feet while the gross weight stays inside ordinary axle limits. A power transformer is the opposite, a concentrated mass on a short footprint that forces a bridge capacity analysis before a state will issue a permit. Solar modules are glass laminates that arrive by the tens of thousands and crack invisibly from vibration. Grid battery freight is Class 9 hazardous material with its own UN entry, state of charge and packaging rules. All of it is planned backward from one fixed point you do not control: the day the crane is standing on the pad, or the interconnection window the utility handed you.
The cargo
What decides the load
The gist of each one here. The shipping guide has every one in full.
A wind or solar construction schedule is not a list of delivery dates, it is a sequence anchored to equipment that is already on site.
Read it in full in the guideA modern onshore blade is a length problem wearing a heavy haul permit. Utility scale blades commonly run from roughly 150 feet to past 250 feet, and the loaded combination carrying one can exceed 200 feet, yet the weight often stays inside ordinary axle limits.
Read it in full in the guideA generator step-up or substation power transformer is the hardest single piece on most energy projects, and the difficulty is concentration.
Read it in full in the guideA solar module is a glass laminate over brittle silicon cells, and its characteristic failure is invisible at the dock.
Read it in full in the guideEnergy is not a trailer type, which is why a single project buys several services at once.
Read it in full in the guideDobie coordinates transportation: a vetted carrier network managed by dedicated logistics specialists.
Read it in full in the guide
The numbers
Who this is for
The process
Send the milestone dates first, crane mobilization, energization window and commercial operation date, then the component list with weights, dimensions, center of gravity, lift and saddle points and the OEM transport manual. The schedule is built backward from the fixed dates, not forward from the shipping dock.
Clearances, turning geometry, bridge capacity where the piece is a superload, escort and curfew conditions per state, and the access road into the pad. Port or rail transfer points get set here too. On dimensional pieces the permit calendar sets the delivery date, so it is settled before a truck is booked.
Operating authority, cargo insurance limits and equipment checked against this specific load, hazmat capability and training verified where the freight moves as Class 9, and the OEM's contact points, straps, saddles, recorder handling and nitrogen pressure log confirmed with the driver before the piece leaves the plant.
Status through transit, arrival coordinated with the crane or the offload crew, condition documented at pickup and at delivery with recorder readings and photos, and signed paperwork returned with the POD so an OEM inspection or a claim has a record behind it.
Equipment
The modes a wind, solar or storage build actually uses, one page each.
That is the only delivery that counts, so the route survey runs all the way in. The survey covers the highway route, the site entrance, the access road and the turnaround at the pad, checking turning geometry and off-tracking at every corner along with overhead lines, guardrail ends and sign posts. Access roads are gravel or caliche and can wash out between the survey and the move, so the last leg is re-verified close to the delivery date rather than assumed from the plan set. Which trailer configuration can be sourced for your blade length on your dates is confirmed against the carrier network before a date is committed.
Start with the permit, not the truck. A transformer concentrates its mass on a short footprint, so once it crosses a state's superload thresholds the route is reviewed structure by structure, and that engineering analysis runs weeks, occasionally longer, with a real chance that one bridge forces a detour or a temporary shoring plan. Capacity can usually be arranged faster than a superload permit can be issued, so the practical planning rule on this cargo is that the permit calendar sets the delivery date and everything else is scheduled against it.
Battery storage is regulated freight before it is heavy freight, and the UN entry decides the paperwork. Loose cells and modules move as UN3480, Class 9. Batteries already installed in a rack, a cabinet or a containerized enclosure move as UN3481, packed with or contained in equipment. Either way the shipment needs a UN 38.3 test summary available, a state of charge inside the manufacturer's transport instruction, packaging that prevents short circuit and prevents movement inside the package, the required marks, shipping papers with the proper shipping name and UN number, and emergency response information with a 24 hour contact. Class 9 is not placarded in U.S. domestic highway transport, which does not make the load unregulated: the marks, the papers and hazmat trained personnel still apply. A hazmat capable carrier is assigned and the papers are verified at dispatch. Damaged or defective cells are a different regulatory case and are quoted separately. There is an internal team here for freight that is not vehicles or machinery, with experience in hazardous materials, and the specifics of your enclosure, its UN entry, its state of charge and its dimensions get confirmed before a date is set.
Yes, and the sequence is the point. Modules are released against the installation calendar rather than dumped into a laydown yard, because every extra handling event on a module pallet is another chance to open microcracks nobody sees until an electroluminescence test or an underperforming string finds them. Pallets stay in the manufacturer's orientation, within the rated stack height, and are never restacked at a cross-dock to fill out a trailer. Speed on the site access road is treated as a damage control, because washboard gravel puts more shock cycles into a pallet in ten minutes than a thousand miles of interstate does.
Both directions get planned, because a crane on standby and a component sitting in a yard both cost money. If the site date moves, the load is held or the release is re-sequenced rather than delivered into a yard with no capacity to receive it. If the component is at risk, the specialist calls while the move can still be recovered, and urgent transport is a defined service here with 24/7 support behind it. What cannot be fixed at the last minute is a permit, so on dimensional pieces the schedule is protected upstream instead of rescued downstream.
Yes. Tower sections, tracker steel, wire harness and electrical equipment for U.S. energy projects are built in Mexico in volume, and the crane date keeps counting through the customs broker, the maneuvering yard and the northbound handoff. The South Texas corridor is home territory here, and crossings, brokers, yards and Mexican carriers are weekly business, so the border leg is planned inside your delivery window instead of treated as a separate project that starts when the piece reaches the line.
Liability follows the facts, so what a transportation partner controls is prevention and evidence. Prevention is a travel plan built around the permit's speed conditions, braking discipline on grades, how railroad crossings and pavement joints are taken, and where the unit sits overnight. Evidence is condition documented at pickup and at delivery, the nitrogen or dry air pressure log where the unit ships pressurized, photographs at both ends and the recorder reading noted with the delivery paperwork. The cargo travels covered by the carrier's cargo insurance, and that documented record is what a claim or an OEM inspection argument gets settled from.
Yes, and it is a different job from a build. A replacement blade, main bearing, gearbox or transformer goes to an operating site with a machine down and revenue stopped, so the schedule is driven by crane availability and the outage window rather than by a construction sequence. The route survey work is the same, the permit lead time on a dimensional piece is the same, and the honest planning input is that a superload permit does not move faster because the asset is offline. The removed component often needs a return leg to a repair facility, and that leg is planned with the inbound one instead of after it.
Last reviewed: August 2026 · Reviewed by the Dobie Transport logistics team
A logistics specialist reviews your lanes and comes back with pricing and capacity. Support runs 24/7.
Every carrier is vetted for operating authority and insurance, and we check the certificate before every dispatch, not once a year. USDOT 3411782 · MC 1100274