Why solar and storage projects leave unused wire
Solar construction buys cable against planned rows, inverter locations and collection routes. A shorter final route can leave part of a reel. A changed inverter layout or deleted block can leave an entire order unused. Overbuys, change orders and value engineering can also leave cable that no longer matches the final design.
Battery energy storage system, or BESS, projects can have similar leftovers when equipment locations, feeder routes or control requirements change. At an operating plant, an upgrade may leave unused replacement stock. We buy that stock and used cable, including mixed lots.
Before clearing a closeout lot, identify warranty spares and material reserved for punch-list work. List what the project is ready to sell. Our seller categories include contractors and other organizations with surplus electrical wire and cable.
Separate the lot by electrical function
Do not label every reel as solar cable. A solar-plus-storage project can have several products that need separate identification.
| Material in the lot | Details to record | Useful photo |
|---|---|---|
| PV wire from array work | AWG or kcmil, copper or aluminum, voltage marking, color and footage | Print showing the PV designation and voltage |
| Copper or aluminum feeders | Exact type, conductor size, color and length per reel | Tag beside the matching wire print |
| Medium-voltage collection cable | kV rating, insulation level, insulation material, shield construction and footage | Complete tag plus both cable ends |
| Tray and control cable | Product number, conductor or pair count, size, shielding and jacket marking | Tag and readable outer-jacket print |
Use the PV wire details when sorting array cable. Keep XHHW-2 feeders in their own group, even if they came from the same purchase order. List grounding wire and communications cable separately rather than adding their footage to the feeder total.
Read the rating instead of guessing from the project
A plant's operating voltage is not the same thing as its cable rating. For example, Southwire SPEC45411 describes a 2000 V copper PV product with cross-linked polyethylene, or XLPE, insulation. Its references include UL 4703 for photovoltaic wire. That product specification is an identification example, not a rating to assign to every black solar wire.
For collection circuits, copy the full medium-voltage cable identification. Southwire SPEC46719 is a 35 kV MV-105 product with EPR insulation, a 133% insulation level and copper tape shielding. The insulation level is a specification, not an estimate of remaining condition.
On control and instrumentation cable, preserve the manufacturer's product number. Pair count and shielding details matter when two similar-looking reels have different constructions. Never fill missing specifications from a nearby reel unless the records establish that they match.
Confirm who is selling and releasing the cable
We confirm who is selling and keep simple paperwork with each purchase. For company-owned material, include the name of the person authorized to release it. This may be the company owner, project manager, purchasing department or investment recovery contact. They can help identify the material listed under the project contract.
Owner-furnished wire, contractor-purchased wire and utility-owned cable may have different sellers. If different companies own portions of a lot, list those portions and their authorized contacts separately. Include the project name and reel IDs so everyone can connect the inventory to the right company.
Useful records include an invoice, purchase order, job closeout paperwork or a letter on company letterhead. Send the record you have along with the name of the person releasing the material. For a solar closeout, matching reel IDs to those records helps keep the purchase paperwork clear and simple.
Make mixed-lot footage usable
Assign each reel a simple inventory ID and use it in the photos and list. Put full reels, partial reels and individual cut lengths on separate lines. We review mixed lots by their actual wire types, sizes, footage and condition, not just the project's total cable quantity.
A useful inventory line reads: reel ID, manufacturer, product number, conductor metal, size, listing, voltage, color, remaining footage and condition notes. Add the project name and Arizona pickup location to the lot summary.
Keep matching reels grouped, but retain the length for each reel. Three partial reels do not form one continuous installation length. If the tag shows original shipped footage, label it as original rather than remaining footage. Mark uncertain lengths as estimates and explain the basis. The original packing list helps identify a reel, but it does not prove what remains after pulls.
Photo examples for a closeout inventory
The following are examples of useful views, not descriptions of material we have bought:
- PV reel: photograph the complete reel, then a close-up showing size, voltage and PV marking. Include the tag and the remaining-footage note.
- Feeder group: photograph the matching reel IDs together, then each tag. Show color markings and any differences between reels.
- Collection cable: photograph the full tag, both end seals and the reel flanges. Include any visible jacket damage without hiding it under a cover.
- Control reel: photograph the product number and jacket print that identify the conductor or pair count and shielding.
The wire photo guide explains how to keep print readable. Include a wide view that shows everything offered and excludes material your company is retaining.
Arizona solar and storage closeout context
SEIA's Arizona facts, updated June 2026, reported about 11,751 MWdc of installed solar and 20,245 MWh of storage capacity. MWdc describes solar generating capacity; MWh describes stored energy. These totals show the scale of Arizona's solar and storage market, not a measured quantity of available surplus wire.
SRP's October 2024 completion announcement described Eleven Mile near Coolidge in Pinal County as 300 MW of solar with 300 MW/1,200 MWh of battery storage. Include the site location when documenting a Pinal County wire lot, not just the company's billing location.
TEP's June 2026 update reported Roadrunner Reserve's second phase entering service with 200 MW/800 MWh of storage. It also reported Wilmot Energy Center II entering service in April 2026 with 100 MW each of solar and battery capacity. These are relevant examples for Tucson and Southern Arizona sellers, not claims that those projects sell wire to us.
Condition and written terms before pickup
Record outdoor storage history, sun exposure, water exposure and damaged reel flanges. A sunlight-resistant marking does not erase visible damage or establish how a reel was stored. Keep medium-voltage ends sealed and disclose missing or damaged seals. Jacket condition, end seals, readable tags, matching lengths and packaging affect the offer.
We buy all types of electrical wire and cable, including used material and cut lengths. There is no universal minimum quantity. Send the organized lot through Get an Offer for review and a written offer. Payment method and timing are confirmed in writing before pickup.
We pick up anywhere in Arizona. Before wire pickup, check the released reel IDs against the written terms and keep retained plant spares separate.