The Numbers Behind Canberra's Duplicate Image Problem: What the Data Actually Shows

Across Canberra's federal and territory government agencies, duplicate digital images sitting idle on shared drives and content management systems now account for a measurable and growing share of ICT storage costs — a problem that has crept up on organisations that expanded their digital holdings rapidly during the COVID-19 remote-work period and have not systematically audited them since.

The issue matters right now because the ACT Government's digital services renewal program, which covers agencies along London Circuit and departments housed in the Civic precinct, entered a new budget cycle on 1 July 2026. Storage rationalisation has been flagged internally as a cost-saving priority, with government ICT teams under pressure to demonstrate efficiency gains before the next annual review.

What the Storage Audits Are Finding

Industry benchmarks published by the Australian Digital Health Agency and referenced in federal procurement guidance suggest that between 25 and 40 percent of image files held in large organisational repositories are exact or near-exact duplicates. For a mid-sized Commonwealth agency holding, say, 10 terabytes of digital assets — a realistic figure for a department with active communications and policy teams — that means somewhere between 2.5 and 4 terabytes of redundant material consuming licensed storage every month.

At current Australian cloud storage contract rates negotiated through the Digital Transformation Agency's whole-of-government panel, enterprise storage typically costs between $25 and $45 per terabyte per month depending on tier and redundancy settings. Running even a conservative 3 terabytes of duplicate image data for a full year adds up to roughly $900 to $1,620 in direct storage spend — multiplied across dozens of agencies, the figure compounds quickly.

The Australian National University, whose campus sits less than two kilometres from Capital Hill, flagged a related problem in its 2025 digital asset management review. The university's library and communications teams identified thousands of duplicate photographs in its research image holdings, some files replicated more than a dozen times across different faculty drives. The cleanup process took an estimated 200 staff hours over three months — time that represented a real opportunity cost for a research institution managing tight budgets.

Canberra's Local Agencies on the Front Line

Closer to the territory level, the ACT Government's Shared Services ICT division, based in Callam Offices in Woden, manages digital storage for multiple directorates. Staff there have been working through a systematic deduplication project since February 2026, targeting image libraries held by the Health Directorate and the Environment, Planning and Sustainable Development Directorate. Both hold substantial photographic archives — the planning directorate alone has accumulated years of site inspection imagery from development corridors in Gungahlin and Belconnen.

The University of Canberra, whose Bruce campus houses the News and Media Research Centre, has separately been examining how AI-assisted duplicate detection tools compare to traditional hash-matching software for large image sets. Early findings from a pilot program running on the university's own communications archive suggest AI tools catch between 15 and 22 percent more near-duplicate images than straightforward file-matching approaches — images that are visually identical but saved at slightly different resolutions or compression settings, which hash comparisons miss entirely.

For Canberra's large public-sector workforce, the practical implication is straightforward: the next internal audit cycle is likely to include storage reporting requirements that flag duplicate asset rates by directorate. Staff who manage shared drives — especially those handling ministerial photography, social media content or policy consultation imagery — will increasingly be asked to demonstrate they have run deduplication checks before renewing storage allocations.

The tools to do this are not expensive. Several enterprise deduplication platforms are available under existing whole-of-government software licensing arrangements, meaning agencies do not need separate procurement approvals for deployments under a standard threshold. The harder task is cultural — getting communications and policy teams to treat digital housekeeping as a recurring workflow item rather than a one-off project. Given the storage cost trajectory and the July budget reset, that conversation is no longer optional.