AirTrunk's offtake sits on the Mulwala solar farm, now at full output at 31 MW - the 25 MW / 100 MWh battery is still ahead, the term is blank, and a portion of the energy is uncontracted
On 5 November 2026 European Energy said the 31 MW Mulwala solar farm in New South Wales is operating at full output, with an offtake for the solar from data centre operator AirTrunk. The same page says the farm will incorporate a 25 MW / 100 MWh battery. It does not say the battery is operating. It prints no dollar price, no contract years and no cents. The company says the majority of the electricity goes to AirTrunk and a portion is uncontracted.
A data centre that wants daytime renewable power now has an operating solar farm with its name on the offtake. The battery on the same page is still a future box.
On 5 November 2026 European Energy said it opened the Mulwala Solar Farm in New South Wales after construction, energisation and commissioning. The solar farm is 31 MW. The page says it has completed full-output testing and is operating at full output.
The battery. The page says the farm will incorporate a 25 MW / 100 MWh battery. The summary line says it is due to combine 31 MW of solar with that battery. "Will incorporate" is not a box that is already running. 100 divided by 25 is 4, our arithmetic. The page does not print the words four hours. A megawatt is how fast the box can empty. A megawatt-hour is how much energy it holds, like the size of a tank rather than the width of the pipe. Four hours is that division. It is not a second figure the company printed.
The buyer. The solar component is supported by an offtake with AirTrunk. The page calls it long-term contracted demand. It does not print the years, the cents, or the megawatt-hours AirTrunk takes. Catriona McLeod, VP and Head of European Energy Australia, says the majority of the green electricity is going to AirTrunk, with a portion uncontracted and feeding the grid for energy consumers in New South Wales. Sabooh Whitelaw, Associate Vice President, Utility and Energy, is quoted for AirTrunk. That quotation says the solar farm is operating at full output and adding renewable generation in NSW. It does not print a price. The attribution line on the page spells the company Airtrunk. The headline spells it AirTrunk.
The build, as the page prints it. Construction began in September 2025. More than 250 local jobs, with the on-site workforce peaking at 73 a day. More than 40,000 working hours. Over 50,000 panels. Almost 7,000 piles. Construction was completed in March 2026 and the farm was energised the same month. Commissioning and testing continued through 2026. Full output came in recent weeks, then the official opening with AirTrunk and local stakeholders.
Thorvald Spanggaard, Executive Vice President and Head of Project Development, says Mulwala brings together generation, storage and contracted demand. Storage is in that sentence. A switch-on date for the battery is not on the page. A dollar figure is not on the page.
The panels are a solar farm at Mulwala. The page does not describe them as sitting on a data centre roof. The power goes out on a contract. It is not a rooftop over the server hall.
Analogy: the solar farm is switched on, and most of its power is spoken for. The battery is a tank drawn on the same sheet, and the page does not say the tank is full or even on site.
Good: A dated company release with 31 MW at full output, a named data-centre offtaker, a battery size kept in the future tense, and a plain split between contracted and uncontracted energy.
Bad: No term, no cents, no battery switch-on date, no dollar price. Four hours is our division of 100 by 25. The job count, the hours, the panel count and the pile count are the company's. This note uses that one release.
Ugly: Treating 100 MWh as power already flowing. Treating "long-term" as a year count. Reading the opening as a battery that is already online. Putting the panels on the data centre roof.
Soft next step: write 31 MW as operating solar, write 25 MW / 100 MWh as the battery still ahead, and leave the cents blank.
Source: European Energy, 5 Nov 2026, Mulwala solar farm opening with AirTrunk. Primary for 31 MW at full output after construction, energisation and commissioning, a 25 MW / 100 MWh battery the page says the farm will incorporate, an offtake with AirTrunk for the solar component described as long-term contracted demand, the statement that the majority of the electricity goes to AirTrunk with a portion uncontracted, construction from September 2025, more than 250 local jobs, a peak on-site workforce of 73 a day, more than 40,000 working hours, over 50,000 panels, almost 7,000 piles, construction completed and energised in March 2026, and the line that the project brings together generation, storage and contracted demand. 100 divided by 25 is our arithmetic. The page does not print 4 hours, a dollar price, a contract length, a cent rate, or a battery switch-on date.