Halls Built, Power Waits: Who Gets Paid as NEXTDC's Melbourne Line Stalls

NEXTDC's biggest Melbourne campus has its halls going up and its power running late. On 19 October the Australian data centre operator halted its shares to work out what a delay to power supply at M3, in West Footscray, does to this year's guidance. It has not named the cause. The likely one, according to Citi, is the 66,000-volt line its distributor, Jemena, paused in September after residents objected to 15-metre poles in their streets. The builders and the grid company are paid either way. NEXTDC's rent waits. The stuck step is the last street of wire.

AUSTRALIA · AI DATA CENTERS · Data as at 20 Oct 2026 · Next update: NEXTDC's announcement, due by the start of trading on 21 October
Affects: AI Data Centers · Hyperscalers · Neoclouds — Markets: Australia · Malaysia · Singapore · US

Education only, not advice to buy or sell any security. Figures are as filed by the companies or as reported. NEXTDC has not yet said what caused the delay or how much capacity it affects. Our own sums are labelled.

The numbers that matter this week

Figures from NEXTDC's trading-halt request of 19 October 2026 and FY26 results of 27 August 2026, Jemena's statement of 30 September 2026, and Citi's estimates as reported by Reuters on 20 October 2026. Status chips are Second Order’s read.

On this page: Why it matters · What changed · The site · The wire · The money · Melbourne’s west · Across the region · Our math · Who gets paid · What is stuck? · Dates next · What would change this · FAQ

Why does a delayed power line in one Melbourne suburb matter?

Because it shows where an AI data centre can get stuck even after everything hard is done. M3 has land, a hyperscale customer on a long-term lease, money to build, and a building already partly running. NEXTDC told investors in August that power arrangements were in place across its contracted capacity. None of that switches on the next hall if the final run of high-voltage wire from the local network to the site cannot be built.

A data centre landlord earns rent on power delivered to a tenant's racks, not on concrete poured. Until the power arrives, the halls are a cost: the builders have been paid, the lenders charge interest, and the customer waits. That is why a two-day trading halt over one site's power supply is a listed-company event rather than a construction footnote. It goes straight to the line in NEXTDC's guidance that says how many megawatts start paying this year.

This picks up two threads we have followed rather than repeating them. Our NEXTDC Analysis of 13 October mapped the gap between the 740 MW NEXTDC has signed and the 175 MW it bills. Our Sydney power Pulse of 17 October found Sydney's transmission connections sold out into the 2030s. M3 adds a third kind of delay, and the most local one: a street.

For what these buildings are, see what an AI data center is. For why a hall's rent starts only when power and tenant both arrive, see data center leases, explained. For the company itself, see what NEXTDC does.

What changed between late September and 20 October?

Four steps, three of them public before Monday, set up the halt. Read in order, they move the M3 story from a neighbourhood dispute to a line in a listed company's guidance.

• 27 September — the poles become news. The ABC reported that 15-metre concrete poles able to carry up to 66,000 volts had gone up in streets in Melbourne's inner west, and that one resident was told they were there to run power to a data centre more than a kilometre away. Jemena told the ABC its communication and engagement could have been better and that it had paused works to listen to the community.
• 30 September — routine work restarts, the big poles do not. Jemena said it would resume routine maintenance, connections and a substation rebuild in Yarraville, Footscray and nearby suburbs ahead of summer. A proposed program to install large power poles in parts of Yarraville and West Footscray remained paused. “The replacement of 11-metre power poles with larger poles remains paused as we take the time needed to engage with our customers in the area,” its spokesperson Michael Pintabona said.
• 19 October — NEXTDC halts its shares. NEXTDC asked the ASX for an immediate trading halt. It said it needs to give a material update on the impact of a delay to the supply of power at M3 Melbourne, including on the FY27 guidance it has given, that its board had not yet met to consider the delay, and that it expected to make an announcement within two days.
• 19 and 20 October — the read-through. NEXTDC did not say what caused the delay, and Jemena declined to comment on a client matter, Bloomberg reported. Citi's analysts said the delay likely relates to Jemena pausing work on lines meant to deliver power to M3, and estimated, as reported by Reuters, that about 70 MW of the 155 MW of new Victorian billing they assumed for FY27 sits at M3, putting about A$25 million of FY27 operating earnings at risk.

Read together, this is not a demand story. Nobody has said the customer is leaving or the halls are not wanted. It is a timing story, and the clock that slipped belongs to neither NEXTDC nor its tenant. It belongs to the people living along the route of the wire.

What is M3, and how much of it is waiting?

M3 is NEXTDC's largest Melbourne campus, in West Footscray in the city's inner west. In its FY26 results of 27 August, the company put total planned power at about 225 MW. At 30 June 2026, 60 MW was built and 165 MW was in progress. During FY26 it delivered 42 MW at M3 and said billing had started and the build-out continued.

The customer is not a mystery in kind, even if it is unnamed. NEXTDC's results describe long-term agreements with hyperscale customers at M3 and S4 Sydney, and say each site is leased, or expected to be leased, to a single customer under a long-term agreement covering all or substantially all of it. The M3 lease started during FY26, so NEXTDC now books M3 as an investment property valued by CBRE, using capitalisation rates of 6.00% to 6.25% for the two sites. For what a whole-building hyperscale lease is, see hyperscale versus colocation.

That last line in the left-hand table is the uncomfortable one. In August NEXTDC said power arrangements were in place across its contracted capacity and would progress through defined stages as each project moved to delivery. An arrangement is a contract with the network. A stage that runs through residential streets still needs crews, equipment and people willing to let it pass. The August wording was about the first; the delay is about the second.

Why is a street of wire so hard to build?

Because large loads are fed at high voltage, and high voltage needs taller poles. A big data centre is supplied most cheaply at a voltage far above what runs to houses, a University of Melbourne engineer told the ABC, and lines at that voltage need taller poles to stay safe. The poles that appeared in inner-west streets were 15 metres tall and able to carry up to 66,000 volts. Jemena told the ABC that augmenting the existing overhead network was the most efficient and practical way to deliver the required supply.

Efficient for the network is not the same as acceptable to the street. Residents told the ABC they did not know the change was coming, and the local state MP said she understood why they were angry. Jemena paused the program, began surveying residents on how they want to hear about major upgrades until 20 November, and said it would report back later this year. None of that is a failure of money or engineering. It is a failure of consent, and consent does not run on a construction schedule.

Who pays for the poles is settled, which is what makes this a pure timing problem. As reported by the ABC, Data Centres Australia said that under the National Electricity Rules large users, data centres included, pay 100% up front for their connection costs, including any network upgrades needed to connect their site. Jemena said the larger poles fall within the scope of those upgrades. So the network is not short of money to build the line. It is short of a route it can use.

What are the options? None is quick. Going underground usually costs more and digs up the same streets. A different route needs new easements and new consultation. Supplying the site from a different substation needs spare capacity there. Each one moves the date. That is the reason NEXTDC's board needed to meet before the company could say anything about FY27.

What does the delay do to NEXTDC's numbers?

We will know on or before 21 October. Until then, the frame is NEXTDC's own guidance. For FY27 it guided net revenue of A$615 million to A$640 million and underlying EBITDA of A$385 million to A$410 million, built on 197 MW of contracted capacity converting to billing during the year and a further 221 MW in FY28. It guided capital spending of A$5,250 million to A$5,750 million, the largest program in its history, “principally in capacity our customers have already contracted”.

Citi's estimate, as reported, is that M3 accounts for about 70 MW of the 155 MW of new Victorian billing the brokerage assumed for FY27, that not all of M3's billing is likely to be affected, and that about A$25 million of FY27 operating earnings could be at risk. That is an outside estimate on an unconfirmed cause. We use it only to show the scale, not as a forecast.

The cost side does not wait. NEXTDC's FY26 accounts show A$1,600 million of senior debt and A$1,750 million of subordinated capital drawn at 30 June, against pro forma liquidity of A$8.7 billion. Money spent on M3's halls is spent. Interest on what has been drawn keeps running. What a delay changes is the date the matching rent starts. Accela Research's Naomi Wagura made the same point to Bloomberg: a delay defers revenue and cash while capital stays tied up, which weakens returns.

That is the signed-not-billing gap from our NEXTDC Analysis, seen from the inside. The gap between contracted and billing megawatts was always going to close in stages as halls were finished and powered. M3 shows that a stage can slip for a reason no contract with the customer controls. For how much of a hall's cost sits in the building before any rent arrives, see how much it costs to build an AI data center.

Is this only about M3, or about Melbourne's west?

M3 is the listed example, but the squeeze around it is wider. Network operator AusNet said power demand from advanced data centre proposals in Victoria exceeds the state's existing capacity, Bloomberg reported, adding that Victoria accounts for about a third of the facilities seeking transmission connections across Australia.

One step up the grid, Jemena and Powercor have already written down how tight it is. In a report published on 30 April 2026 on the Keilor Terminal Station, which feeds Melbourne's north-west around Tullamarine, the two distributors said they had received more than nine major data centre connection requests in its supply area, and that if only one of them proceeds to full load the station will have exceeded its full capacity. Their preferred fix, upgrading three transformers and adding a new one, costs an estimated A$91 million in 2025 dollars, with the best timing in 2028-29.

Keilor is not M3's supply point, and we do not link the two. It matters because it shows the same pattern at a different level. At the terminal station, the fix is cheap next to its benefit and the wait is about years of build. In the street, the fix is paid for and the wait is about consent. In both, the hall can be built faster than the wire that feeds it. “Data centers can be built much faster than the electricity infrastructure needed to supply them,” Accela's Naomi Wagura told Bloomberg.

There is a policy layer too. NEXTDC's own results noted that New South Wales and the Commonwealth are proposing reforms to data centre grid connections, with national changes phasing in from 2027, and that proposed obligations include up-front network charges, bonds, renewable buying and firming. NEXTDC said those apply at new connection and planning stages and leave its contracted book unaffected. M3 is a reminder that the rules on paper are not the only gate. Our NSW power-condition Pulse covered the state rule; this is the street.

How does Melbourne compare with the rest of the region?

Four grids, four places the same project can stall. In Sydney, as our Sydney Pulse found, the bind is at the top: new transmission connections are sold out, so a site with approved power is the prize. In Malaysia, as our Malaysia unused-power piece set out on 17 October, power is still available, so the government charges for capacity that is booked and not used. In Virginia, today's US Pulse followed a 3 GW campus whose utility power starts arriving only by the end of 2028.

Melbourne's case is the most local of the four. The terminal stations and transmission lines matter, but at M3 the delay sits in the last few kilometres between the network and the gate. It is also the hardest to price in advance, because it does not show up in a utility's capacity table or a government's queue. It shows up when crews arrive in a street and residents park their cars in the way.

The lesson for AI builders across the region is the same either way. A power contract is necessary, not sufficient. What counts is power physically delivered to the building on the date the tenant was promised, and every metre of wire between the two is a place the date can move.

Our math: what do the numbers say?

• M3 at 30 June: 60 MW built of about 225 MW planned is about 27%; the 165 MW in progress is about 73% (our arithmetic on NEXTDC's figures).
• M3 inside Victoria: 165 MW is about 70% of the 236 MW NEXTDC had in progress in the state at 30 June (our arithmetic).
• M3 inside the group: 165 MW is about 31% of the 537 MW of capacity under development across NEXTDC at 30 June (our arithmetic).
• FY27 exposure: Citi's about 70 MW at M3 is about 36% of NEXTDC's 197 MW of guided FY27 billing conversion (our arithmetic; Citi's assumption against company guidance, so a rough scale only).
• Earnings exposure: Citi's about A$25 million is about 6.1% to 6.5% of NEXTDC's A$385 million to A$410 million FY27 underlying EBITDA guidance (our arithmetic on a reported estimate).
• Signed versus billing: 175.0 MW billing out of 740.1 MW contracted is about 24%, leaving 565.1 MW signed but not yet paying (our arithmetic on NEXTDC's figures).
• Capital already drawn: A$1,600 million of senior debt plus A$1,750 million of subordinated capital is about A$3.35 billion drawn at 30 June (our arithmetic).
• Spending pace: the A$5,500 million midpoint of FY27 capital guidance is about A$15 million a day across the group (our arithmetic; an illustration of how much capital moves while any hall waits, not an M3 figure).
• Keilor upgrade: an estimated A$91 million cost against A$5,377 million of weighted net benefits in Jemena and Powercor's report is roughly 59 times (our arithmetic; the money is small next to what waiting costs).

What this tells you: M3 is mostly still a building site, and it is a large share of what NEXTDC is building in Victoria. If an outside estimate is about right, the delay touches about a third of this year's planned switch-ons and a single-digit share of this year's earnings guidance. The capital behind it is already committed. The variable is time.

Who gets paid first?

First, the builders and equipment makers — as the halls go up. With 165 MW of M3 in progress at 30 June and FY27 capital guided at A$5.25 billion to A$5.75 billion, contractors, electrical gear suppliers and cooling makers are paid on progress. A power delay does not claw back what they have earned, and NEXTDC said in August that its expansion works at M3 were on schedule.

Second, Jemena and the network — up front. Under the rule Data Centres Australia described, large users pay in advance for their connection works and the upgrades needed to reach them. The distributor is not waiting on rent; it is waiting on a route. For why utilities tend to collect before halls do, see the members' utilities Analysis.

Third, the lenders and subordinated holders — as money is drawn. About A$3.35 billion was drawn at 30 June on our arithmetic. Interest is owed on that whether M3's next hall bills in January or in June. A delay does not change what lenders are owed; it changes how long NEXTDC carries the cost before matching rent arrives.

Fourth, NEXTDC — when the power arrives and the tenant moves in. The lease is signed and running on the part that is built and powered. The rent on the halls still waiting for power starts later, by an amount the company has not yet stated. Other operators that already have power delivered, such as Macquarie Technology, or that bought halls with power already on, as in our Sharon AI Catalyst, sit on the other side of this line.

Fifth, the tenant — later, in compute it cannot yet run. A hyperscaler that planned capacity at M3 for a date either waits or puts the work somewhere else. Neither is NEXTDC's cost on paper, but both shape how the next lease is negotiated. For the broader pattern of halls built ahead of the things they need, see our halls-before-customers Analysis.

One-line rule: at M3 the builders, the network and the lenders are paid whether or not the power arrives on time. NEXTDC is paid when it does. The stuck step is the last street of wire.

So what is the stuck step?

The last street of wire: consent to build the 66,000-volt link through Yarraville and West Footscray, or a workable route around it. Not the customer: the lease is long-term and running. Not the money: NEXTDC has A$8.7 billion of pro forma liquidity, and the connection is paid for up front. Not the building: works were on schedule in August. Three things make this step stick:

• Consent has no fixed timetable. Jemena is surveying residents and said it would report back later this year. A program that is paused while a utility listens has no date to restart until the listening is done.
• Every alternative moves the date. Underground cable, a new route or a different substation each brings new design, approvals and, in most cases, new consultation.
• The grid behind the street is tight too. Distributors in Melbourne's north-west have already said one data centre at full load would exceed a terminal station, and AusNet said Victorian demand from advanced proposals exceeds existing capacity. Spare capacity to reroute through is scarce.

So-what: in Melbourne's inner west this week, the scarce thing is not land, money, customers or even grid capacity on paper. It is permission to run a wire down a street where people live. Until that moves, the halls at M3 that are waiting for power stay a cost rather than a rent.

Which dates test this read next?

• By the start of trading on 21 October 2026 — NEXTDC's announcement. The test: the cause, the megawatts affected, the length of the delay and any change to FY27 guidance.
• 20 November 2026 — two clocks on one day: Jemena's resident survey closes, and NEXTDC holds its annual general meeting. The test: whether the board gives a firmer M3 power date in front of shareholders.
• Later in 2026 — Jemena's summary of what residents told it, and its response. The test: whether the larger-pole program restarts, changes route or goes underground.
• 30 June 2027 — end of FY27. The test: how much of the 197 MW of guided billing conversion arrives on time.
• 2028-29 — the best timing for the Keilor Terminal Station upgrade in Jemena and Powercor's report. The test: whether the north-west's grid catches up with the data centres queuing for it.

The first date tells us how big this is. The middle dates tell us whether the street can be won. The last two tell us whether the next wave of Melbourne halls meets the same wall a level up.

What would change this view?

• NEXTDC's announcement names a different cause — for example equipment, a substation or a customer request — and the street-wire read would not hold.
• The delay turns out to be short, with FY27 guidance unchanged — the stuck step would have moved quickly and the event would be noise.
• Jemena finds an agreed route or an underground option within weeks — consent would stop being the bind for M3.
• The customer changes timing or scope on its own — the binding step would move from the wire to the tenant.

Practical takeaways

• 19 Oct: NEXTDC halts its shares over a delay to power supply at M3 Melbourne, with FY27 guidance under review
• The board had not met; an announcement is due by the start of trading on 21 Oct
• M3: about 225 MW planned, 60 MW built and 165 MW in progress at 30 June 2026
• Jemena's larger-pole program in Yarraville and West Footscray has been paused since September
• Large users pay up front for connections; the wire is funded, the route is not agreed
• Builders, the network and lenders are paid first; NEXTDC's billing waits for power
• Stuck step: the last street of wire

FAQ

What did NEXTDC announce about M3 Melbourne?
On 19 October 2026 NEXTDC asked the ASX for an immediate trading halt because it needs to give the market a material update on the impact of a delay to the supply of power at its M3 Melbourne data centre, including on the FY27 guidance it has already given. It said its board had not yet met to consider the delay, and that it expected to end the halt with an announcement within two days. The halt runs until that announcement or the start of normal trading on Wednesday 21 October, whichever comes first.

What caused the delay?
NEXTDC has not said. Its halt request names a delay to power supply and nothing more, and the distributor, Jemena, declined to comment because the matter relates to a client. Citi's analysts said it likely relates to Jemena pausing work on the electricity lines meant to deliver power to M3. Jemena itself said in September that a program to replace power poles with much larger ones in parts of Yarraville and West Footscray was paused while it engages residents, and on 30 September said that program remained paused.

How big is M3, and how much of it is affected?
NEXTDC's own FY26 results put M3 at about 225 MW of planned capacity, with 60 MW built and 165 MW in progress at 30 June 2026; 42 MW was delivered during FY26 and billing has started. How much of the remaining capacity the delay touches has not been disclosed. Citi said the delay likely does not affect all of M3's billing, and estimated that about 70 MW of the 155 MW of new Victorian billing it assumed for FY27 sits at M3.

Who pays for the new power lines to a data centre in Victoria?
The data centre. As reported by the ABC, Data Centres Australia said that under the National Electricity Rules large users including data centres pay 100% up front for their connection costs, including the network upgrades needed to connect their site, and Jemena said the larger poles fall within the scope of those upgrades. So the money for the wire is not the problem. Building it through residential streets is.

How is this different from Sydney's power problem?
Sydney's problem, as our 17 October Australia Pulse found, is at the top of the grid: new transmission connections are sold out until new lines arrive in the 2030s. M3's problem is at the bottom: the last few kilometres of 66,000-volt line between a substation and the building, through streets where people live. One needs new transmission. The other needs consent for poles.

Is this investment advice?
No. Education only. It maps who gets paid and which step is stuck. It is not a recommendation to buy or sell any security, and we leave out share prices, broker ratings and price targets on purpose.

Keep reading on the map

• Australia Markets hub — country page
• NEXTDC signed-not-billing Analysis — 740 MW signed, 175 MW billing
• Sydney power Pulse — when transmission is sold out
• Australia funding Pulse — who pays for the build
• NSW power-condition Pulse — the state rule on new connections
• Goodman power-bank Analysis — power as the asset
• Malaysia unused-power piece · Virginia first-power Pulse
• AI Data Centers on the stack · What NEXTDC does · What Macquarie Technology does
• How long it takes to build an AI data center · What it costs
• All Markets doors — Taiwan, Korea, US, China, Singapore, Australia, Malaysia

Not investment advice. Do your own research.

References

1. ASX, NextDC Limited (ASX: NXT) trading halt and NEXTDC's request for trading halt, 19 Oct 2026. announcements.asx.com.au — the M3 power delay, the review of FY27 guidance, the board not yet having met, and the halt running to 21 October at the latest.
2. NEXTDC, FY26 Results Announcement, 27 Aug 2026. announcements.asx.com.au — M3 built and in-progress capacity, FY27 guidance, billing and contracted utilisation, liquidity and drawn capital.
3. NEXTDC, FY26 Results Presentation, 27 Aug 2026. announcements.asx.com.au — M3 at about 225 MW planned, single-customer long-term lease, and power arrangements in place across contracted capacity.
4. Jemena, Electricity network works resume in Yarraville and Footscray, 30 Sep 2026. jemena.com.au — routine works resume; the larger-pole replacement program stays paused while Jemena engages customers.
5. ABC News, Suburban residents protest 15-metre power poles linked to data centre expansion, 27 Sep 2026. abc.net.au — 15-metre poles carrying up to 66,000 volts, Jemena's comments, and the rule that large loads pay connection costs up front.
6. Jemena, Update on planned works in Yarraville and Footscray, Oct 2026. jemena.com.au — works paused while Jemena listens to residents; survey on how they want to hear about major upgrades, closing 20 November, with a summary later this year.
7. Jemena and Powercor, Keilor Terminal Station Capacity Constraint RIT-T PADR, 30 Apr 2026. aemo.com.au — more than nine data centre connection requests, one at full load would exceed the station, A$91 million fix timed for 2028-29.
8. Bloomberg via Energy Connects, Australian data center power delay exposes AI bottleneck, 19 Oct 2026. energyconnects.com — Jemena's pause, Citi's read of the cause, AusNet on Victorian demand, Jemena declining to comment.
9. The Edge Malaysia (Reuters), Australia's NEXTDC halts share trading before update on data centre power delay, 20 Oct 2026. theedgemalaysia.com — Citi: about 70 MW of the 155 MW of Victorian billing it assumed for FY27, about A$25 million of FY27 EBITDA at risk.