High-altitude energy: maintaining the solar and the batteries already installed in the Puna
One of the four lithium plants already producing in Salta stated that its start-up, in the first quarter of 2026, was limited by a lack of gas supply verif textual en el reporte semestral de la compañía. That is exactly what is sold here: firm power, which is what constrains production today. The market has three different tempos: maintaining the megawatts already turning —that is paid today and never switches off—, installing the generation being built through 2029, and converting diesel engines to gas while the power line has not arrived. And the pressure has to be named: six of every ten pesos in this market, and up to seven and a half, never reach a tender in Salta —the owner of most of the capacity solved it with its own supply chain, and whoever built the hybrid plant kept its maintenance too—. A warning about the figure above, and it is methodological: it counts the maintenance of generation, not the cost of generating, which is on the order of sixty times larger and is not an outsourceable market but the operator's own energy cost. Confusing them would make a single still-unbuilt project look bigger than the market of the whole province.
A double, asymmetric window, and the two halves run in opposite directions. The assembly of new generation runs until 2029 and contributes 49% of the market, but it switches off with the legal investment deadlines.See the clocks that are running, one by one
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What the market is made of
The number is contractable service, not energy spend: it does not include fuel or imported equipment, which are the two big lines and the two not bought here. It is built in three blocks with three different clocks — one already running that does not stop, one that switches off on a date, and one that closes by itself when the transmission line arrives.
~USD 8.5-10.5 M/year (60-75% of the total market): six out of every ten pesos in this market, and as many as seven and a half, never reach a tender in Salta.
See the full breakdown
~USD 3.5-6 M/year, midpoint ~USD 4.5 M/year (~32% of the total market), addressable by a local or national entrant: panel cleaning and thermography, battery state-of-health testing and management, medium-voltage and substation electrical maintenance, maintenance of gensets and dual-fuel power stations, electromechanical assembly as a subcontractor on the large works, civil works for foundations and piling, and gas connection engineering.
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USD 0.4-1.2 M/year for ONE entrant within 2-3 years. Realistic composition.
See how the range is built
Who really pays?
In this niche the client is almost never the mining company, and that is the fact that most orders the sale: there are four doors and only the third is the holder operator.
It is the first invoice and the fastest, because the client is not the mine but whoever already won the service and needs hands at altitude. The flip side is the category's visibility barrier: the provincial mining suppliers' register has no energy category — its schedule does not include the activity — so whoever registers with this speciality disappears into the services box and the local content mechanism cannot see them. The correct statement is not that there are no companies: it is that the regime does not register them as such.
Here the buyer is the construction company and not the operator, and that saves you the mine's supplier register. The provincial mining promotion act is what opens the door to the outsider: it expressly allows a joint venture with a Salta partner from 30%, and asks for 70% of the contracted amount towards registered local suppliers and 60% of the payroll. It is worth reading the section before building on top of it: it says shall preferentially contract and sets no penalties — it is a preference with a reward, not a captive market. It is the door that switches off in 2029.
The door with the most margin and the slowest, and both for the same reason: the annual contract with guaranteed availability is signed by the holder and not by a contractor, so the decision goes up to the operations department and sometimes to head office. It is measured in quarters, not weeks, and it almost always comes in as a renewal of someone already inside — which is why the two doors above are the route, not the shortcut. In exchange it is the only relationship that does not switch off when construction ends. The catch is not in the price but in the tax authority, and it is dealt with in «What we watch»: on this line the margin is decided in the classification as much as in the quote.
It is the door with an expiry date and the only one with no anchor of its own: there is no published tariff for the service in the province and no observed contract. What is laid is the infrastructure — 321 kilometers of gas pipeline reaching the puna — and there is at least one operator declaring the migration. It is declared as a bet and not as a market, and that is why the number's midpoint does not rest on this block.
Which projects move this demand
The largest RIGI commitment in Argentine lithium: Rio Tinto is building a 53,000 tpa plant at the Salar de Rincón using DLE (nanofiltration)…
see the project →Gold and silver mining in the puna, on the Salta/Catamarca border area: feasibility development, a 3.15 Mt/yr processing plant and full infrastructure…
see the project →Second stage of POSCO’s Sal de Oro lithium complex in the Salar del Hombre Muerto, on the disputed Salta/Catamarca border strip…
see the project →When the window opens
This is not «what breaks it»: it is the dashboard for not signing a contract with the wrong classification. In this niche the expensive mistake is not coming in late or quoting low — it is invoicing on the line that costs twice as much, every month and for the whole life of the contract.
See the evidence
See the evidence
There are three transmission line projects competing for the same corridor and none is under construction as of August 2026 prob financial press and opinion of the provincial economic and social council: Genneia with the provincial distributor for USD 400 M, up to 300 km and 350 MW prob financial press.
See the evidence
The province already has the case: the Rincón Lithium plant (Argosy / Puna Mining), 2,000 tonnes a year, was listed as suspended as of the Aug-2026 cutoff prob industry press and our own survey of the province's plants; there is no operator statement or administrative act backing it, against the backdrop of the roughly 80% fall in the lithium price.
See the evidence
Its 100 MW in grinding alone -two 28 MW semi-autogenous mills and two 22 MW ball mills at 40 million tonnes per year verif technical report with effective date 31-Dec-2025- are the largest power figure in the province and are not a market for this niche: the project is fed by a new 122.5 km line tied into the 345 kV grid verif idem.
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Ganfeng resolved the province's largest solar park with its own chain: USD 190 M of solar infrastructure that was not tendered in Salta prob company and financial press.
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See the remaining 5 risks
49% of this market is assembly and construction of new generation estim our own calculation, and it switches off with the legal investment deadlines, which expire on 30 June 2029 for Rincón and 31 July 2029 for Sal de Oro II verif resolutions of the large investment regime.
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The repair of infrastructure works or networks pays 5.00% turnover tax on gross revenue, TWICE as much as building them (2.50%) and more than the 3.60% of mining support services verif Annex I of the schedule, codes 422200 note 2 —repair of electricity, gas, water and telecommunications distribution networks— and 429090 note 2 —repair of civil engineering works—.
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The province's largest generation asset is published in a unit that does not apply to what it measures: 288 MWp of batteries prob company.
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The two conflicts local press recorded at Tolar Grande in the twelve months before the Aug-2026 cutoff were over service contracts and over local hiring, not environmental prob local press; the count of two episodes is our own reading of that coverage.
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The Supreme Court took original jurisdiction on 17 October 2025 in the amparo brought by Kolla and Atacama communities of the basin, with an injunction suspending permits that was still pending resolution as of the Aug-2026 cutoff prob national press and the organizations that are parties to the case.
See the evidence
The opportunity in depth
The opportunity in depth
Panel cleaning and thermography, as a subcontractor to whoever holds the contract today — low capital, a fast first invoice and no approval process of your own. It is the service the international cost model explicitly names within fixed maintenance, and the one nobody wants to do at 4,000 meters. It is the door that finances year one and the one that shows you the site from the inside. It is worth not confusing market with workload: the TAM counts Mariana's 120 MW and Lindero's 6 MWp, and leaves out — rightly — the 208 MWp of the commercial park at Olacapato, which already has an operator and a twenty-year contract prob company and province. But that park is some 60 kilometers away and calls for exactly the same crew: it does not enter the addressable market and it does enter the calculation of who you will compete with for the technician — it is the only utility-scale photovoltaic operation running in the Salta Puna.
Settling the tax classification before signing — zero capital and it is the niche's margin play. The provincial schedule has a line for network construction, one for network repair and one for mining support services, and none of the three names the maintenance of a generation plant. Do it before quoting and not after: once the price is signed, the extra point cannot be passed on to the client.
Battery health and medium voltage — the technical step and the one that separates you from the generic competitor. The international model allocates 2.5% of capital per year to storage and includes module replacement there: it is a market that grows on its own as the banks age, and today it has no declared local supply. It requires instruments and trained people, not scale.
Electromechanical installation as a subcontract to the main contractor — the high ticket, and it is won underneath whoever won the works, not by arguing over it. It is the route by which the local content law admits an outsider: a joint venture with a Salta partner from 30%. But the partner has to be verified before signing, and the reason is concrete: the law requires the local partner to be listed in the register, and of the six Salta metalworking firms named as the sector's natural partners, with the full register read on 15 Sep 2026, only two appear; a third appears under a different corporate name and three do not appear under any similar name. Not being registered does not mean they do not exist: it means the requirement is not met with them until they register, and that is checked in the register before forming the partnership. It also works out on the tax side, which in this niche runs backwards: this product is invoiced at 2.50% turnover tax as network construction, the cheapest of the lines this niche can fall into verif nomenclador provincial RG 16/2022.
Gas connection engineering — the bet with a clock, and the clock is not controlled by whoever invests: the window closes when the transmission line reaches the salars. There are 321 kilometers of gas pipeline already laid to the puna and at least one operator declaring the migration, but there is no published tariff for the service and no observed contract.
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See the detail
When you get paid, and what blocks it
already in
split
An Argentine company founded in 1936 prob trade press. It built Lindero's hybrid system, the country's first hybrid mine: 10,908 bifacial panels for 6 MWp prob trade press, 12 MWh of batteries, 30 conversion units and 2 substations, at 3,800 m above sea level prob ibid., with a plant controller designed by its own Argentine engineering team prob Panorama Minero.
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Mariana operates 100% off-grid with 120 MW of solar and 288 MWp of batteries, and the solar infrastructure declares USD 190 M within the project's USD 980 M prob company and financial press.
See the evidence
It is migrating from diesel to natural gas plus photovoltaic, with no capacity declared in any source prob provincial press. The mining suppliers' chamber complained in February 2026 that the operator brings in Korean suppliers and turns them into service companies once construction ends prob trade press: it is not future competition, it is a competitor already inside and with Argentine residence.
It is one of the province's four lithium plants in production and it was not possible to determine what powers it — whether diesel, gas or grid unconf no public source. What is documented is that its first-quarter 2026 ramp-up was limited by a gas supply restriction and by equipment maintenance, according to the company's own report verif verbatim in the half-year report. That sentence is the best proof of demand for this niche that exists in the province: firm energy is what holds production back.
See the remaining 5 players
208 MWp, 554,580 panels over 350 hectares, 650,000 MWh a year, with a 20-year supply contract prob company and province. It is not mining self-generation: it is a commercial park that already has an operator and a signed contract, and counting it in a market for mine plant maintenance would be inflating. It matters anyway for two reasons: it is some 60 kilometers from the salar corridor prob company and province and competes for the same technical crew, and it is the only reference for the scale of photovoltaic operation running in the Salta Puna.
It built Rincón's camp for Rio Tinto: 26,000 square meters in 18 two-storey buildings, with a kitchen sized for more than 2,000 people, at 3,600 m above sea level and in the 2025-2026 window, with own generation of 4.4 verif the contractor's own project sheet, opened with our own eyes on 2026-08-05. Note the unit: the source writes 4.4 MV, and MV is not a unit of power — it will be MVA or MW. It is an error of the source that is not corrected here, only flagged. What matters about the case: it is the counter-example to the idea that generation always comes imported, because here the package was delivered by a Salta firm.
Three transmission line projects competing for the same corridor: Genneia with EDESA for USD 400 M, up to 300 kilometers and 350 MW prob financial press; Central Puerto with YPF Luz and the World Bank's private arm for 140 kilometers extendable to 350, USD 250-400 M and up to 400 MW prob ibid.; and the national State through a May 2025 resolution under a public works concession prob opinion of the provincial economic and social council. None is under construction as of August 2026. When any of them arrives, mine-site generation goes from being the system to being the backup.
The provincial registry of local suppliers to mining companies classifies its roll with 24 labels and NONE OF THEM IS ENERGY verif official roll dashboard. There are labels for catering (41 bidders), drilling (23), fuel (7) and even vehicle sales (4), but not for energy. The mining suppliers' chamber, which is a different roll, does have the category: 4 members out of 316 verif chamber directory. Under pumping and generation appear three, and under electrical works and supplies one verif ibid.. Two consequences, and both matter: an entrant cannot register under energy, it registers under Services (300 bidders) or Engineering (95) verif official roll dashboard, the two most saturated boxes, and its speciality becomes invisible to the buyer; and the province cannot measure local content in this category, so the mining promotion act does not protect it in practice.
The Diablillos feasibility study budgets ancillary services personnel at 0.24 dollars per tonne milled, USD 10.1 M over the mine life prob operating cost table of the feasibility study, as in-house staff. Not the whole energy system of a mine is outsourced, and a competitive map that does not say so is selling a bigger market than there is.
The jobs it createsIt is a niche of few people and high qualification - the opposite of the camp, and it has to be said that way rather than selling mass employment that is not there. La lectura completa para el que busca trabajo, en la hoja de este nicho para la gente →
calculate it
The number comes from multiplying the year’s activity by the unit price, and it is cross-checked against independent methods that give the same result.
The full calculation, step by step
Concentration Three levels with opposite structures, and the entrant picks the wrong level if it does not separate them.Level 1 - assembly and construction of new generation (49% of the market): concentrated. A single name with completed, documented mine generation work in the Salta Puna, plus the Asian operators' own chains, which own most of the installed capacity. There is no public register of awards, so any percentage would be invented; what can be stated is that of the generation projects with a known builder, there is only one with a public project sheet.Level 2 - recurring maintenance (30% of the market): unknown structure on the large asset, and that is the gap. It does not appear in any open source who operates Mariana's 120 MW today: it may be the operator itself, it may be whoever installed it, it may be staff brought in from outside. At Lindero, by contrast, it DOES appear, and maintenance was awarded within the same package as the construction: those 6 MWp already have an owner and do not come back to the market. The remaining unknown — the province's largest asset — is exactly what makes the directly attackable market move between 25% and 40% of the total, and it is not resolved with more searching: it is resolved with two phone calls.Level 3 - grid and transmission: a regulated monopoly plus three private developers competing for the same route. The provincial distributor, the regional transmission company, the national dispatcher and the regulator that authorizes any transmission work with a certificate whose processing can take up to two years. It is not a market for an SME entrant, but it is what sets the expiry date of part of the niche.And gas conversion has no identified local supply: no Salta company was found on any roll declaring industrial gas connection engineering or regulation and metering stations. The system's players are the provincial company that owns the pipeline, the gas distributors and the national sector regulator.Beware the easy reading: of the 91 categories the industry surveys, 73 have local supply in Salta and 18 do not — and the 18 are heavy machinery, mills and crushers, not this. This niche's gap is NOT one of electrical companies existing: it is one of specialization, of altitude accreditation and of the category having no box to declare itself in.
The rule that moves it
No rule creates this niche's demand — the megawatts already spinning create it — but two define how much is left after tax and who can bill it, and in this line of business that weighs more than in any other.
See the underlying reading
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 keptSee the full legal grounds
See the full legal grounds
See the full legal grounds
Where the number comes from
The published midpoint is ~USD 14 M/year and the band runs from 9 to 29. It is more than three times as wide between floor and ceiling, and the reason is declared: two of the three blocks depend on decisions not yet taken — an expansion with no announced date and a conversion with no published tariff — while the perpetual block, which is the firmest, is also the smallest.
See the calculation, the variables and how it was validated
The calculation is installed capacity times an annual maintenance ratio, done separately for three markets with different tempos and summed at the end. It was not derived from any percentage of capex, and there is a concrete reason: the line that looks like the market —the cost of generating— is on the order of sixty times larger than the real market, and using it would have made a still-unbuilt project worth more than the whole province.
Robustness check, and it starts with what does not hold. (a) The third support point does not stand. The calculation claimed to converge through two independent routes —a technical study from the Puna of Salta and an international model— and added a third from the project itself. With the full releases of the June 2026 definitive study and of the previous study opened, neither contains the generation maintenance line that anchored the local route: their operating cost tables have three and four rows, and none is energy. The local route is withdrawn. Two points remain, both external: the US laboratory model at 24,000 dollars per MW-year and distributed generation in another province at 20,000. They are within 20% of each other and they bracket the adopted floor of 21,000, so the floor holds — but on two external anchors, not on three with a local one, and that is less than the page used to say. The 35,000 ceiling still has no support point at all. (b) The same ratio read as a percentage of capex, with two different capex figures. If annual maintenance is a percentage of what it cost to install, the ratio per MW depends on what an installed MW costs, and this work holds two such prices: the urban one, USD 900 per kW turnkey, and the Puna one, USD 190 M for 120 MW, that is USD 1,583 per kW, 76% more expensive. Applying the same percentage to both, the ratio should fall between 18,000-22,500 (urban) and 31,700-39,600 (Puna): the published band of 21,000-35,000 sits almost exactly between the two. (c) What has to be recounted and has not been recounted yet, declared so it does not pass as verified: the definitive study changed the silver project's technology —diesel gensets for three years and then grid, instead of a photovoltaic hybrid plant—, and its investment decision slipped to Q2 2027. Both move the physical base and the installation block, and this page's headline figure does not yet incorporate that recount.
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
The ratio that decides the whole calculation —what it costs to maintain an installed megawatt per year— does not exist published either in Salta or in the country, so it was built through routes that do not touch each other and then checked for convergence. And there is a correction to declare head-on, because it touches the main anchor. The first route was attributed to the *generation maintenance line of the definitive feasibility study* of a project in the Puna of Salta itself. Both full releases were opened —the June 2026 definitive study and the earlier pre-feasibility study— and neither publishes that line: their operating cost tables have three and four rows respectively, and none is power generation. ⇒ The province's own route is left without a verifiable public source and is withdrawn; the figure may live in the full technical report, which is not open, but as long as it cannot be shown it supports nothing. What remains standing, and it has to be said that it is less: the cost model of the United States national renewable energy laboratory, which sets fixed maintenance of an industrial photovoltaic plant at twenty-four dollars per kilowatt-year and explicitly includes asset management, insurance, site security, *cleaning*, vegetation control and component failure; and the O&M of twenty dollars per kilowatt-year that this same work published for distributed generation in another province. They are two points and both come from outside Salta —one from another continent and one from an urban market—, so the floor of the band holds, but no longer on a Puna data point. And the same study changed a physical assumption this calculation was using: its base case is no longer a photovoltaic hybrid plant but *«the cost of diesel generators for power supply until the third year of operation, at which time a connection to the lower cost national grid is anticipated»*. That project's megawatts enter the calculation as different equipment, different instruments and a different price, and their recount is pending and declared. Three further assumptions are declared, and all three narrow downward and not upward — each is written at the foot of its variable: plants with no published capacity enter at zero, the construction package enters only through its service fraction, and the gas conversion block has no anchor of its own. None was filled in with the comfortable assumption. Left out, finally, is the area's commercial solar park: it has a twenty-year supply contract and is not mine self-generation.
Coverage: the compulsory provincial register of mining suppliers (RPPLEM), with 485 companies and 24 categories checked —none of them energy—, searched by company name as well, and the six Salta metalworking firms in the category checked one by one · Sep 15, 2026 · not reviewed: no operator publishes who it awarded the operation and maintenance of its generation to, and the registry category is declared by the registrant itself: counts by label are a floor and not a census
How to cite this figure: Despegue (2026). High-altitude energy: maintaining the solar and the batteries already installed in the Puna · Salta. despegueargentina.com/en/salta/operacion-mantenimiento-generacion-boca-mina · terms of use
Neighbouring marketsOne market in the same group, from USD 28 to USD 45 M a year
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