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Case study · Pumped Hydro

Pumped hydro — a transmission corridor through difficult country.

A 330 kV transmission line across rugged terrain with heritage constraints and a settled history of developer engagement. Months-long blocked negotiations unlocked within 24 hours of our efforts.

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Approval status Approved · Public ·Sector Transmission ·Location Regional · Mountainous
300 MW
Pumped hydro capacity
24 hrs
Critical-parcel resolution
330 kV
Line voltage
~$2B
Project CAPEX
▸ The brief

A pumped hydro facility — and a transmission line nobody could route.

A pumped hydro facility in regional Australia. The generation site itself was solvable. The transmission line required to bring the energy to grid was not — at least not yet

The corridor crossed mountainous terrain with cultural heritage areas, environmental receptors, and a population of landholders who had been approached by multiple developers over the previous decade. We needed to be the best. AA was engaged for the full land access scope — from early-stage route identification through to agreement negotiation, including broader stakeholder coordination throughout.

▸ Challenge

Terrain, settled resistance, and one parcel nobody could reach.

Route constraints. Mountainous terrain, cultural heritage zones and environmental overlays constrained every possible alignment. A landholder being asked to consider a moving alignment will say no. The route had to be largely resolved before first contact, so landholders saw a credible proposal rather than a desktop guess. They didn't want another developer showing them a property consuming region of interest.

A six-month impasse on a decisive parcel. One property sat on the corridor in a way that made routing around it expensive enough to threaten the project economics. Previous developer outreach had failed for six months. Letters unanswered. Site visits unattended. The standard playbook had run out of moves.

Settled resistance and absentee owners. Years of developer approaches had hardened sentiment across the broader landholder population. Several properties were not owner-occupied; standard registries were out of date and the listed contacts were several owners stale. Conventional outreach was the wrong tool.

They were never home. — Six months of failed contact before AA's regional liaison made one phone call.
▸ AA's approach

Route before contact, sequence by receptiveness, lead with the relationship that already exists.

Stage 1 — Desktop Discovery. Corridor modelling against terrain, heritage and environmental constraints. Property boundary mapping. The route was narrowed to a defensible primary alignment before any landholder was approached.

Stage 2 — Sentiment Discovery. Regional sentiment mapping across the corridor. Sequencing by receptiveness, not by parcel order — early movers became reference points that the more resistant landholders eventually checked with. Community network intelligence surfaced the absentee-owner contacts that no database held. The six-month impasse was identified early and held back from the standard cadence.

Stage 3 — Securing Agreements. The decisive intervention on the impasse was a phone call from a regional liaison who knew the landholder personally — not a close friend, a prior business connection from years of work in the district. Verbal agreement and access for site surveys within 24 hours of the call.

Stage 4 — Sustaining Access. Conflict de-escalation in the most contested sections. First Nations coordination maintained throughout. Weekly reporting to the client team. Landholder complaints and disputes routed through AA as first contact, so the developer team stayed clear of the relationships and could focus on the engineering programme.

Talk to us

Long corridor through hard country? Talk to us.

Settled landholder resistance, absentee owners and heritage-constrained routing are not solved by better letters or higher offers. They are solved by liaisons who already know the people. We have those liaisons in NSW, VIC, QLD and WA.

We'll be specific about what we can do, and what we can't.

300 MW
Pumped hydro capacity
24 hrs
Critical-parcel resolution
330 kV
Line voltage
~$2B
Project CAPEX