Transgrid and ElectraNet have successfully energised Project EnergyConnect, the 900 km interconnector linking South Australia and New South Wales. The nation's largest transmission project reached the milestone despite previous budget increases and scheduling setbacks. This critical infrastructure build-out comes as the market feels the growing weight of new generation and storage. NEM spot prices fell 18.5 per cent week-on-week to average $48.99/MWh, suppressed by mild conditions and the increasing influence of renewables on price formation.
The large-scale storage pipeline continues to expand at a rapid pace, signalling a structural shift in grid firming. In a major step, Ark Energy received AEMO approval to connect its 3,148 MWh Richmond Valley solar-plus-storage site to the grid. Underscoring the supply chain's mobilisation, Chinese manufacturer CATL will supply 2,400 MWh of battery storage for Edify Energy's Queensland projects. This momentum is also reshaping development models, with Goldwind planning to integrate DC-coupled battery storage into all new Australian wind projects, starting with a site in NSW.
This influx of flexible capacity is already reshaping market dynamics and challenging incumbent generators. Increased output from wind farms and batteries is actively lowering evening peak prices across the NEM, according to recent analysis. The trend is eroding the profitability and market share of gas and coal-fired power stations, which have historically relied on high evening prices. While this accelerates the transition, it also brings challenges, including rising costs associated with integrating variable wind generation into the system.
Meanwhile, infrastructure gaps are creating significant hurdles for electric vehicle adoption, particularly outside urban centres. EV drivers are facing 14-hour transit times across a 650 km stretch of the Nullarbor, where grid blackouts and slow trickle chargers are common. In response, canola oil-powered biofuel generators are being reintroduced to provide faster charging. The challenges are not just remote; a new report highlights corporate fleet managers' persistent concerns over managing employee home charging, revealing commercial and administrative friction points. Still, the used EV market is maturing, with BYD Australia signing a deal with Pickles to auction its second-hand fleet vehicles.
International developments highlight similar policy and technology frontiers. German energy experts are pushing for a capacity market design that explicitly enables battery storage participation, arguing regulatory clarity is critical to unlock investment. The calls for certainty on grid fees and frequency control services in Germany mirror ongoing debates in Australia's own market design reforms. In a novel technology integration, China has opened the world's first undersea data centre, powered directly by offshore wind turbines and cooled by seawater, demonstrating a new model for decarbonising high-intensity computing.
The regulatory work shaping Australia's grid continues, with several key consultations underway. AEMO is seeking feedback on proposed changes to the spot market settlement cycle and cash security arrangements, with submissions due next week. The regulator has also released draft reports on network planning for George Town and connection requirements for AusNet's Beveridge terminal station, inviting stakeholder input over the coming months.