Australia faces potential challenges in meeting its 2030 renewable energy target as delays in project delivery and rising demand from data centres threaten to strain the electricity grid, according to the latest analysis from the Australian Energy Market Operator (AEMO).

AEMO’s 20-year integrated system plan indicates that if solar and wind projects continue progressing at current rates, renewables would account for approximately 75 percent of the national power supply by 2030. This projection falls short of the federal Labor government's target of 82 percent renewable energy. The market operator’s constrained delivery scenario, which factors in slower construction of large-scale renewable projects, higher capital costs, and delayed transmission infrastructure, points to even greater shortfalls in meeting emissions reduction goals while increasing overall system costs.

Under this slower rollout scenario, fossil fuel generation would persist longer in the energy mix. Coal-fired power would remain online beyond current expectations, and gas generation would be relied upon more heavily to maintain system reliability. AEMO noted that these factors could slow the pace of emission reductions and exacerbate supply risks associated with natural gas.

The report highlights that even if all wind and solar projects currently in the connection pipeline are completed as planned, they will only provide about 75 percent of the additional generation capacity needed by 2030. Achieving Labor’s renewable energy goal will require not only delivering existing projects but also accelerating the development of new renewable capacity, especially in regions where the project pipeline remains thin. The development process faces challenges including securing financing, obtaining regulatory approvals, and managing construction timelines. Large-scale wind farms can take up to seven years from inception to commissioning, while solar projects are encountering issues related to labor shortages, permitting delays, and equipment availability.

AEMO’s outlook also maintains the 2028 target for the Snowy 2.0 hydro expansion project, despite recent commentary from Snowy Hydro’s CEO describing the timeline as increasingly difficult to meet. The Snowy 2.0 project, Australia’s largest renewable energy development, has experienced significant delays and budget overruns.

In addition to challenges in renewable deployment, AEMO projects that electricity demand from data centres will grow substantially, rising to nearly 10 percent of total system demand by 2050 – about four times its current share and roughly equivalent to one-fifth of present overall grid consumption. This surge is partly driven by increasing adoption of artificial intelligence and cloud computing technologies. Forecasts indicate data centre electricity use could reach approximately 34 terawatt hours annually by 2050, surpassing the power consumption of the aluminium smelting industry, a historically energy-intensive sector.

Unlike aluminium smelters, which operate continuously at high load factors, data centres typically have lower load factors and often shift much of their demand to off-peak times. This load profile is expected to temper impacts on wholesale electricity prices. To accommodate the rising demand, AEMO anticipates commissioning new generation capacity specifically to support data centre growth.

Overall, AEMO’s analysis underscores the complexity of achieving Australia’s renewable energy ambitions amid infrastructure constraints and evolving demand patterns, emphasizing the need for timely project delivery and strategic planning to maintain system reliability and cost-effectiveness.