A shortage of grid power is leaving critical Sydney data centre projects in limbo for years, stalling even the most carefully planned developments and putting a pipeline worth more than $50bn at risk.
The industry’s enormous power needs are colliding with limited grid capacity, with major network upgrades not due until the next decade. The squeeze is reshaping the city’s development landscape and sparing no one.
In August, developers were warned that Sydney had sold out of electricity capacity. Network operator Transgrid had been flooded with connection requests, and the industry will now have to pay for costly network expansions.
This de facto rationing is delaying even the largest developers from bringing facilities online, while more speculative players may shelve their plans altogether as competition for power intensifies.
Transgrid told The Australian it had recently signed connection agreements with data centres totalling 1.5 gigawatts of new demand in western Sydney, effectively doubling the load in that area.
“We continue to work with data centre proponents in response to unprecedented demand for electricity in western Sydney, where demand to connect has significantly increased,” a Transgrid spokesman said.
Transgrid may pursue a plan to unlock up to 2GW of additional capacity in western Sydney, along with supply in the less populated Riverina and Hunter regions, where spare power is available.
Developers also face the thorny task of complying with Anthony Albanese’s requirement that data centres source new renewable energy to power their facilities, a rule intended to prevent further strain on Australia’s fragile grid.
Industry group Data Centres Australia says the mandate will lengthen delivery timelines. “The challenge remains in the time gap between building a data centre, which takes 18 months to two years, and a renewable energy project that can take from four to seven years,” chief executive Belinda Dennett said.
“Data centre projects need to have a confirmed commitment to energisation in order to execute customer contracts, secure capital and commence the build. If they cannot get this commitment, the customers, the investment, and the jobs that are supported by data centres will go elsewhere.”
Major Sydney projects still waiting on power include Goodman Group’s Eastern Creek development, NextDC’s planned S7 complex, Stack Infrastructure’s SYD1 and AirTrunk’s S4 complex.
Connection delays could push completion of these projects into the next decade, raising questions about Sydney’s standing as a gateway market just as regional competition heats up.
The pressure is expected to fall hardest on marginal schemes that are yet to connect and where developers hold only land options. Cloud providers, hyperscalers and AI companies also tend to favour established groups with the financial strength to deliver large projects.
