Energy and transmission for the copper wave (+ mining solar, San Juan)
The copper wave more than doubles San Juan's power system: ENRE has already modeled 700 MW of new mining demand to 2030 —Vicuña, Los Azules and El Pachón— on a province whose entire solar fleet adds up to ~547 MW prob our own survey of operating parks. To serve it the trunk is already defined —a 500 kV line of 167 km with two substations— plus the energy infrastructure package Vicuña estimates at ~USD 800 M. That trunk is captive to Transener and YPF Luz, but the entrant's gap is in what is executed in-territory: the civil works and erection of lines and substations, the 33 kV networks that are already being tendered and the O&M. It is the only niche with a perpetual core: you build now and sell the energy for 25 years or more.
What the market is made of
The TAM is activity, not capturable spoils. The 500 kV trunk was applied for by Transener before ENRE and is paid by Vicuña, YPF Luz integrates the Los Azules electrical solution and the already-installed generators share the PPAs: that is captive. Your real gap is what is executed in-territory —the civil works and erection of lines and substations, the 33 kV networks, the solar BOS and the O&M—: the addressable segment.
The rule that moves it
This niche's driver is provincial: San Juan's Local Mining Development Law reserves part of mining procurement and employment for the local supplier and turns provincial qualification into a competitive advantage for the electrical contractor. Each one opens its own page, with the rule, since when it applies and its primary source.
enablesSan Juan: 80/60 local mining procurementIt requires 60% of purchases and 80% of mining employment to go to registered San Juan suppliers and workers: it enlarges the addressable market for the local electrical contractor and turns the RE.PRO.MIN seal into the key to the quota for line, grid and solar works of the copper mega-miners. The quota does not fall away on price: what the act allows is taking out of the calculation base a purchase with no reasonable local offer, with a reasoned technical justification (sec. 9).see the reform →What forces someone to pay for this
The underlying policy that opens up this demand. It is the same inference declared by the rules and the program pillars pushing in this direction.
the RIGI promise is kept + stability → long-term investmentWhich projects already buy this
This market does not float on its own: concrete megaprojects drive it. These are the ones moving demand for this niche — each with its investment and status.
The largest mining project in Argentine history and the first copper PEELP: it integrates Josemaría and Filo del Sol in the San Juan cordillera…
see the project →Leach-based copper cathode project in Calingasta (San Juan). Company/press figures (probable, outside the resolution): resources of ~10,900 M lb Cu…
see the project →Phase 1 of one of Argentina's two largest undeveloped copper deposits, alongside Vicuña: a resource declared by Glencore of ~6,000 Mt @ 0.43% Cu, 2.2 g/t Ag and 130 g/t Mo…
see the project →The niche in depth
Who splits the market, where you get in, what pays and what could break it.
already in
split
The party that APPLIED for the expansion before ENRE (Res. 219/2026), at Vicuña's request and under the Expansions by Contract between the Parties regime —Vicuña is the one paying—; the national HV transmission operator that will run what is built. The resolution does not award the physical works: that's where the market opens.
Designs, builds and finances the Los Azules HV line (USD 400-500 M, ~3 years) + a 100% renewable PPA. It closed the client before the line exists.
Ullum I-III 82 MW + Sierras de Ullum 78 + Tocota III 60 prob our own survey of operating parks + San Juan Sur 130 MW/USD 110 M verif MATER H2-2026 (the first park explicitly 'focused on mining'). Pole for Vicuña's PPAs.
They compete for mining PPAs; Enel already proved the binational model (the Libertadores line to Veladero, 25 MW, USD 54 M, 2022).
State generation / Cuyo trunk transmission (operates the 132 kV network to be reconverted) / distribution.
Natural candidates for the EHV line's EPC post-FID. PowerChina already operates in the province (Batidero camp won on price) and does turnkey lines+solar with financing.
7 bidders in Vicuña's 33 kV/camp tenders (Jul-2026); a local LV/MV base with no 500 kV track record.
Don't fight for the 500 kV trunk or the PPAs —that requires capital, a technical license and a balance sheet that Transener and YPF Luz already have—. Enter through what is executed in-territory, where the Local Development Law pushes and the filter is proven capability, not size:
Start with the 33/132 kV networks and site electrification, which Vicuña already tenders (7 bidders in July 2026, tickets of USD 1-8 M): it is the SME door and the track record to move up in voltage.
As a civil-works and electromechanical-erection subcontractor to a trunk awardee: foundations, service roads and the stringing of a 167 km line that is ~400 towers. 35-45% of the line capex is executed in San Juan, in tickets of USD 5-30 M. The Semisa-Terusi lesson rules —bidding cheap without backing ends in termination—; the shortcut is a JV with a national EPC to inherit a 500 kV track record.
Chain toward solar and line O&M and construction energy rental: it is the revenue that annualizes and survives the end of the construction wave — the niche's perpetual core. There is already a local template (Verano Capital operates Guañizuil).
~60-75% of the window TAM (USD 200-400 M/year): the trunk's EPC margin (Transener + a large EPC), the YPF Luz integrated solution, incumbent generators' PPAs, and imported equipment (450-600 MVA transformers, conductors, panels, trackers, inverters). PowerChina risk: an integrated Chinese EPC with financing enlarges the captive via the law's 'competitive market terms' valve (it already happened in camps: USD 52 M vs 70 M).
USD 100-190 M/year addressable by a local/national entrant: civil works and erection of lines/substations (35-45% of transmission capex), local solar BOS (25-35% of solar capex), 33/132 kV networks, construction rental and O&M. The Local Mining Development Law (80% employment / 60% procurement, RE.PRO.MIN operational before end-2026) is the only regulatory push that enlarges this SAM — but it does not protect against the price gap.
USD 10-30 M/year capturable by ONE new entrant in 3-5 years by chaining: 33 kV tenders 2026 → EHV-line civil-works subcontracts 2027-2028 → solar/line O&M from 2029 (the perpetual one). Construction rental power adds USD 5-15 M/year more with fleet capital.
When you get paid, and what blocks it
effect
Construction jobs: San Juan Sur alone = 300 peak jobs (verified, Genneia release). La lectura completa para el que busca trabajo, en la hoja de este nicho para la gente →
calculate it
Concentration Very high in the trunk: Transener applied for the expansion before ENRE (Res. 219/2026) at Vicuña's request, and Vicuña is the one paying it —Expansions by Contract between the Parties regime—, and YPF Luz captured the full Los Azules solution in an integrated way (line + PPA). Medium in generation (4-5 players: Genneia ~350 MW in SJ, 360Energy, Jinko/Verano, Equinor+Scatec, Enel). Open in MV/LV, civil works and O&M (7 bidders in Vicuña's 33 kV tenders, Jul-2026). The physical EPC for the EHV line — the largest package — is awarded post-Vicuña-FID (end-2026): the niche's share is divided in the next 18-24 months, with PowerChina as a threat of full integration on price.
Who really pays?
The obvious name —“the mine pays for the energy”— hides four distinct flows, and in mining energy you almost never sell to the operator: you sell to whoever builds the trunk or whoever generates the energy. Knowing which is your door is the first step:
Transener is the party that applied for the expansion before ENRE (Res. 219/2026) and Vicuña the one paying it; the physical works are not awarded yet, and that's where the civil-works and erection contractor comes in, in a JV with a national EPC.
The Los Azules Feasibility defines its need for a high-voltage line; the press points to YPF Luz as the integrator that designs, builds and finances it against a PPA. Whoever it is, you sell to the integrator, not to the mine.
The mine signs the PPA with the generator (via MATER/CAMMESA); the BOS and O&M contractor sells to the generator, not to the mine. There are already new solar parks with an explicit mining focus under way (Genneia San Juan Sur, 130 MW / USD 110 M, H2-2026).
Vicuña already tendered 33 kV distribution + camp Phase II with 7 bidders (July 2026); here the local entrant sells to the operator with no intermediary.
When the window opens
It's not “what breaks it”: it's the dashboard to enter at the right moment. The electrical works signal in layers, before becoming a contract.
Each new mining-focused solar park allocated by CAMMESA (MATER) brings forward the local BOS and O&M by 12-24 months; each ENRE resolution on the 500 kV corridor priority —219/2026 modeled the 700 MW— marks which project energizes first and when the EHV line is tendered; and Vicuña's FID (end-2026) triggers the EPC of the 167 km line. The earliest tremor is already on the table: Vicuña's 33 kV rounds.
ENRE — 500 kV corridor priority resolutions (and CAMMESA's MATER allocations, by event) ↗For the cycle's macro tempo: the copper price (LME, daily) rules over El Pachón (300 MW, FID 2029, the most uncertain leg), while Vicuña Stage 1 is robust to the study's prices. A cycle gauge, not the real-time San Juan figure.
The entire ~USD 800 M package (EHV line included) hangs on Lundin-BHP's final investment decision expected for end-2026; without an FID there is no contract between the parties to execute. Killer #1, timing 2026-2027.
It re-sequences the portfolio: El Pachón (FID 2029, 300 MW = 43% estim of modeled demand) is the most exposed; Los Azules (IRR 19.8% verif Los Azules FS Oct-2025) the most sensitive to cost of capital. It hits the 2029-2034 tail more than the 2026-2028 core.
ENReGE 330/2026 (BO 29-Jul-2026, art. 1) rejected the eleven objections filed: EPRE San Juan, La Rioja's Secretaría de Energía, the municipalities of Calingasta, Jáchal and Iglesia, a private individual, Barrick Exploraciones, Minera Argentina del Sol, Golden Mining (Hualilán), Casposo and Andes Corporación Minera verif full articles read in the Boletín Oficial. What remains alive is NOT the administrative claim but the judicial one: a rejection at the administrative level opens the door to appeal, and whoever loses the most capacity —Barrick, which claimed a 250 MW reservation prob under 2006 agreements— has the greatest incentive to file it thesis our own reading of the incentive: we have no record of an appeal filed as of the Aug-2026 cutoff. Timing 2026-2028.
An integrated Chinese EPC (line + solar + financing) shrinks the local SAM via the 'competitive market terms' valve — a precedent already consummated in camps. Each award 2026-2028.
Josemaría's DIA approved (Mar-2026), but its own consultant rates the impact as "severe during operation in the well-field sector" —not on the basin— and expects it to ease once desalinated Pacific water comes in prob press on the provincial environmental file; the DEAM primary source was not located; 'Jáchal No Se Toca' is still active. A La Rioja-style injunction (Apr-2026) against the power line is plausible thesis. Continuous, peaking during construction.
The works are a 2026-2030 window (peak 2027-2029): whoever enters only to build is left with no market in 2030. The insurance is to chain to the perpetual core (energy sales 25+ years + O&M).
How the number is built · and how fresh each data point is
This is the only niche with a perpetual core: when the works end, the sale of energy to the mines is billed for 25 years or more. That recurring engine is built from three variables, and it recalculates just by changing one.
The other face —the electrical works of the 2026-2030 window— is not a formula but a sum of packages: Vicuña's trunk (167 km EHV line + two substations + reconversion, ~USD 600-800 M), YPF Luz's solution for Los Azules (USD 400-500 M), the new mining solar, the 33 kV networks and El Pachón's start — ~USD 1,400-2,400 M in total, ~USD 350-450 M/year at the peak. That is the face that fills the market today; the perpetual core is what remains afterward.
The number rests on a few variables. The formula shows how it moves when each one changes; and each variable carries its freshness seal — how often it is worth revisiting. estim
How we validate this figure
We opened the hard anchor at the official source: ENRE Resolución 219/2026 models ~700 MW of new mining demand to 2030 —Vicuña, Los Azules and El Pachón— and defines the 500 kV trunk that serves it. On that verified demand we build the market in two faces: the electrical works of the 2026-2030 window (a sum of packages —Vicuña's line, the Los Azules solution, the mining solar, the networks—) and the perpetual core of energy sales. Both are our own estimate, and we say so plainly: we start from the verified MW and apply works ratios —35-45% of transmission capex is executed in-territory— and market PPA prices, because there is still no San Juan mining contract with a public price.
How to cite this figure: Despegue (2026). Energy and transmission for the copper wave (+ mining solar, San Juan) · San Juan. despegueargentina.com/en/san-juan/energia-transmision-solar-minero · terms of use
Where the capital is best placed · the neighboring markets of High-altitude infrastructure, compared
There are 5 RIGI projects in San Juan that will buy from this trade, and each one opens its window in a different phase. You already have 7 named competitors on this page. Everything we publish here is public and complete. What we build for you is what no listing gives you: in what order they will need it, when each phase opens its window, what you need certified before knocking, and who is already inside.
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