Six Weeks to Romania's First Grid Capacity Auction: What You Do Before 23 October Decides What You Can Bid on 30 October

Start with the correction, because it changes what these six weeks are for.

If your project is not already on Transelectrica’s validated applicant list, you are not bidding on 30 October. The application window for Romania’s first grid capacity auction closed on 14 July 2026. Distribution operators forwarded their files to the TSO by 20 July, and the eligible applicant list was finalised on 24 July. The EUR 20,000 per MW participation guarantee was posted at application, not at auction.

So the next six weeks are not an entry window. For applicants, they are preparation for an auction whose price and volume you still do not know. For everyone else, they are the last quiet period before roughly 86 GW of paper capacity gets repriced against about 9 GW of real network.

Both groups have work to do. Neither has much time.

What actually happens on 23 and 30 October

The two dates do different jobs, and the gap between them is where the commercial risk sits.

On 23 October 2026, Transelectrica completes and publishes the updated global solution study. This is the document that states how much capacity is available in each network zone, which supplementary development works are required, and what the auction starting prices are. Until that publication, applicants have committed guarantees without knowing the price of the thing they are bidding for.

On 30 October 2026, daily auction sessions begin, running 08:00 to 13:00 on working days until capacity is exhausted. Awarded capacity covers a ten year allocation period beginning in the second year after the auction, so 2028 to 2037.

Seven days. That is the entire window between learning the starting price and placing a bid that commits you to a decade.

The mechanism, precisely

The framework sits in the Methodology for allocating electricity network capacity, approved by ANRE (Romanian Energy Regulatory Authority) Order 53/2024 of 30 July 2024, amended by Order 79/2025 of 16 December 2025 and Order 15/2026 of 21 May 2026. Transelectrica’s implementing procedure was reissued in June 2026.

• Scope: generation and storage facilities with installed capacity of 5 MW or more. Facilities above 50 MW deal directly with the TSO. Smaller ones route through the relevant distribution operator.
• Networks covered: transmission at 220 kV and 400 kV, distribution at 110 kV and medium voltage. Auctions run per network zone as defined by the TSO.
• Participation guarantee for 2026: EUR 20,000 per MW of requested capacity, converted to lei at the National Bank rate. From 2027, the lower of that figure or the weighted average of the previous year’s contract prices.
• Performance guarantee after award: 1 percent of the capacity allocation contract value.
• Payment: at least 20 percent within 30 days of contract signature, the balance within four months. Miss it and you lose the capacity and forfeit the guarantee.
• Order 79/2025 clarified that the methodology does not apply to requests for consumption capacity.

The four clearing scenarios, which most coverage skips

How your bid behaves depends entirely on which of four situations your zone falls into. This is the part worth reading twice.

• Demand at or below available capacity: every application is accepted and the auction price is zero. You pay nothing for the capacity itself.
• Demand above capacity available without supplementary works, but still below total capacity: all bids are accepted at the starting price. No competitive escalation.
• Demand above total available capacity: bids are ranked by price in descending order until capacity is exhausted. This is the only genuinely competitive case.
• Demand far above base capacity: the value of the required supplementary development works is built into the starting price calculation, so the floor rises before bidding even begins.

The practical consequence: in an uncontested zone you could secure a decade of capacity at zero auction price, and in Dobrogea you may find there is nothing to bid on at all. Reporting ahead of the auction indicates some high potential zones, Dobrogea among them, have no remaining capacity. Zone selection, made months ago at application, has already determined most of your outcome.

One detail that rewards attention: unsuccessful bidders may, within a maximum of two hours after the session closes, secure capacity for the following year. That is a live decision made under time pressure on the day. Decide your fallback position before you are in the room, not during those two hours.

The number that explains the entire reform

As of 1 April 2026, Romania had around 1,500 projects holding valid technical connection approvals, totalling more than 86 GW. The system needs roughly 9,000 MW.

The conversion record explains why the regulator lost patience. Of projects that posted the old 5 percent guarantee, about 12 percent reached a connection contract, 3 percent obtained a construction authorisation, and roughly 1 percent completed the full process including the establishment authorisation. Prime Minister Ilie Bolojan has put it bluntly, describing 90 percent of issued approvals as speculative, held by developers intending to resell permits rather than build.

Filter the 86 GW for maturity and the real pipeline emerges. Around 628 projects hold connection contracts and permits. Around 208 hold establishment authorisations. Of 623 assessed, 123 are storage associated.

Those 208 are the projects that survive a regime built to punish paper. Everything else is now a repricing question.

The squeeze on existing ATR holders

The auction is only half the reform. The other half is a set of deadlines that quietly converts optionality into an obligation to build.

• Twelve months from signing a connection contract to obtaining the establishment authorisation. Eighteen months from ATR issuance. One extension of up to twelve months, for causes outside the developer’s control.
• Holders of pre-existing connection contracts face staggered deadlines of 6, 9 or 12 months depending on the year of the contract.
• The financial guarantee attached to an ATR for projects above 1 MW rises from 5 percent to 20 percent of the connection fee, excluding VAT. A further EUR 30 per kW is required at the establishment authorisation stage and held until construction completes.
• Missing a deadline triggers automatic termination of the ATR and the connection contract, with the guarantees executed.
• Minimum validity of the establishment authorisation was extended from 12 to 24 months, which softens the edge slightly.
• For new projects, issuance of the ATR is conditional on meeting payment obligations under the capacity allocation contract. Capacity now comes before the permit, not after it.

Transitional scope matters for anyone holding older files. The methodology applies to projects registered on or after 1 January 2026. Earlier registrations are pulled in if the solution study was not submitted by 31 December 2025 or the ATR was not issued by 30 June 2026. Operators were required to reimburse study payments for affected earlier projects by 1 March 2026.

If you are on the validated list: six weeks of work

• Build your bid curve now, across a range of starting prices, rather than reacting in the seven days after 23 October. You will not have time to model from scratch.
• Set your walk away price against project economics, not against the fear of losing the guarantee. A guarantee is a sunk cost. A ten year capacity contract at a price your project cannot carry is a recurring one.
• Model all four clearing scenarios for your specific zone. Your zone may clear at zero. Preparing only for a competitive auction is as costly as preparing only for a free one.
• Pre-decide the two hour fallback. Write down, in advance, the conditions under which you would take next year’s capacity instead.
• Confirm your payment path. Twenty percent within 30 days of signature is a near term cash call, and the balance lands within four months.
• Stress test the downstream clock. Winning capacity starts the run toward the 12 and 18 month authorisation deadlines. Capacity you cannot build out on time converts into forfeited guarantees.

If you are not on the list: the secondary market is your auction

For developers and funds outside the process, the interesting trade is not the auction. It is what the auction does to the value of everything already permitted.

Two opposing forces are now in play. Projects with an ATR, a connection contract and an establishment authorisation become scarcer and more valuable, because the replacement route now runs through an auction with an unknown price, a ten year commitment and a hard build clock. At the same time, holders of early stage paper face deadlines they cannot meet and guarantees they must post, which manufactures sellers.

That is a classic repricing window: quality up, paper down, in the same market at the same time. The 23 October publication is the event that collapses the uncertainty. Diligence conducted before it is diligence conducted at an information advantage over a market that is waiting.

What to verify in any Romanian project you are pricing right now: whether the ATR is valid at signing and closing, which transitional deadline applies to it, whether the establishment authorisation is in hand or still theoretical, whether guarantees are posted at the new levels, and whether the connection point sits in a zone with any headroom left. A file that looked complete under the old regime can be a liability under the new one.

What is still unknown

Objectivity requires naming what the publicly available material does not settle.

• Zone by zone available capacity and the auction starting prices. Both arrive on 23 October. Anyone quoting them now is estimating.
• How many applications survived validation on 24 July, and how much capacity they represent. Without that, the competitive intensity of each zone is unknown.
• How long the daily sessions actually run. The procedure says until capacity is exhausted, which could be days or weeks depending on demand.
• Whether the schedule holds. The first auction was originally set for January 2026 and has already slipped to October. A further slip is possible.
• How the standard calendar from 2027 interacts with projects that fail in October. The regular cycle opens applications in February with auctions from 1 July, which is a long wait for anyone who misses.

Why Romania is still the right place to be doing this

The uncomfortable framing is that Romania is making it harder to develop. The accurate framing is that Romania is making it possible to develop, by removing the 86 GW of paper that was blocking the 9 GW that is real.

• Queue reform is the binding constraint in almost every European market, and most have not resolved it. Romania has moved from consultation to a dated, procedural auction with published rules and a live calendar. Italy, Spain, Ireland and the US are all working the same problem. Romania has a date.
• A ten year allocation from 2028 to 2037 is genuine long term certainty on the one input that has been least certain. That is a financeable horizon, not a policy aspiration.
• The uncontested zone case is a real opportunity, not a theoretical one. Where demand sits at or below capacity, allocation clears at zero auction price. Well chosen locations can secure a decade of grid rights at the cost of the connection works alone.
• The demand side of the market is being built in parallel. Romania approved a consumption flexibility service in August 2026 and has crossed 1 GW of installed battery capacity, backed by a EUR 150 million Modernisation Fund scheme. Grid rights are worth more in a market where the assets behind them have multiple revenue streams.
• The clean up is what makes entry viable for serious capital. A queue where 90 percent of holders never intend to build is a queue that prices out the 10 percent who do.

The honest counterweights: some of the best resource zones have no capacity left, the starting prices are unpublished as this is written, guarantee requirements have risen sharply across every stage, and the timetable has already slipped once. None of that argues against the market. It argues for being inside the process rather than reading about it.

Momentum Energy’s View

Our read is that 30 October is being watched as an auction when it should be watched as a valuation event.

The bidding will allocate grid rights to a limited set of applicants in a limited set of zones. The publication on 23 October will do something larger. It will put a public number on how much network is actually available in Romania, zone by zone, for the first time. Every existing ATR in the country gets marked against that number, whether its holder participates or not. That is the day the paper pipeline stops being a story about 86 GW and becomes a set of specific, locational, priced facts.

We would separate two questions that are usually merged. Whether to bid is a project question, answered by zone, by starting price and by build capability. Whether Romania is investable is a market question, and the reform answers it more favourably than the pre reform regime did. A queue that cannot be cleared is worse for a serious developer than an auction that can be lost.

Our practical view for the next six weeks: applicants should be modelling all four clearing scenarios rather than waiting for the price, because seven days is not enough time to build a bid strategy from a standing start. Non applicants should be running diligence on acquisition targets now, while the market is still pricing on pre reform assumptions. Once available capacity is public, the information advantage disappears for everyone at the same moment.

For international investors, including the Turkish EPC and industrial groups already active in Romanian solar and storage, the sequencing argument is the same one that applies to the flexibility market. Romania is early, dated and procedural. Early markets reward participants who are positioned before the number is published, not those who wait to read it.

Sources and references

Organisations and documents cited in this article.

1. ANRE (Romanian Energy Regulatory Authority)
2. Transelectrica (transmission system operator)
3. EU Modernisation Fund (European Commission, Climate Action)