Queenstown is approaching a critical infrastructure moment. Two major pressures are developing at the same time: electricity supply into the basin is reaching its limits and the transport corridor between Frankton, the airport and Queenstown town centre is already failing. Both problems are currently being addressed through traditional infrastructure responses that will cost hundreds of millions of dollars and ultimately be paid for by consumers through electricity prices, local rates and national transport spending.
But there is a different approach emerging through the Queenstown Electrification Accelerator (QEA), supported by Rewiring Aotearoa and EECA, which aims to demonstrate how distributed solar, batteries and vehicle-to-grid electric vehicles can reshape the economics of electricity networks. If this work is combined with the proposed Queenstown gondola corridor, the region has an opportunity to solve both infrastructure problems at once while demonstrating a new model of integrated transport and energy infrastructure that could be replicated in other regions.
Queenstown’s electricity supply currently depends on a single transmission corridor running from the Clutha hydro system near Cromwell through the Kawarau Gorge to the Frankton substation. Demand is rising rapidly due to population growth, tourism expansion and the electrification of transport and heating.
Transpower’s present response is to construct a new transmission line from Cromwell to Arrow Junction with a cost estimated between about $134 million and $255 million and designed to increase supply capacity into the basin to roughly 300 megawatts. That investment will eventually be recovered from electricity consumers. The key question, however, is whether peak electricity demand must always be imported through this corridor. The alternative being explored through the Queenstown Electrification Accelerator is to treat the basin itself as a distributed energy storage buffer.
Instead of designing infrastructure around peak imports, electricity can flow into the basin during off-peak periods and charge distributed storage such as electric vehicles, household batteries and thermal storage. During peak demand periods that stored energy supplies local loads, meaning the transmission corridor carries average demand rather than peak demand.
Electric vehicles are particularly significant in this model. If the Queenstown basin eventually hosts around ten thousand EVs and each vehicle makes approximately fifteen kilowatt-hours available for grid support, the basin could contain roughly one hundred and fifty megawatt-hours of distributed storage. That is equivalent to or larger than many grid-scale batteries but without the capital cost because the batteries are purchased by vehicle owners for transport purposes.
While the electricity system faces growing pressure, Queenstown’s transport system is already under strain. The primary corridor between the airport and central Queenstown follows Frankton Road and State Highway 6, a route constrained by terrain and increasingly congested as visitor numbers grow. Major upgrades and roundabout construction are already underway but they do not change the fundamental geographic limitation that there are very few alternative corridors between the airport and the town centre.
A gondola system linking Frankton, the airport and the Queenstown basin offers a high-capacity transport alternative that bypasses road congestion entirely while also creating a visitor attraction in its own right. In Queenstown’s case the gondola route would travel over Queenstown Hill, offering passengers sweeping views of Lake Whakatipu and the Remarkables mountain range. In many urban environments elevated transport infrastructure would face resistance because of visual impact, but here the elevated route would likely become part of the tourism experience rather than an eyesore.
What makes the gondola proposal particularly interesting from an energy perspective is that modern gondola systems already rely on advanced power electronics. Propulsion systems use variable frequency drives that convert alternating current to direct current and then back into controlled AC for the traction motors. Inside these drive systems sits a DC energy link. The gondola corridor therefore naturally contains power conversion equipment, distributed station nodes and continuous cable routes along the alignment. With careful planning that corridor could host a regional direct-current backbone linking the satellite communities around the basin including Frankton, Arrowtown, Jack’s Point, Shotover Country and Arthurs Point.
Electricity entering the basin through the Cromwell transmission corridor could be converted at a central node and fed into this DC backbone. From there energy could flow between villages, electric vehicles, solar generation and buildings equipped with intelligent energy routers. At the level of each building an energy router installed at the installation control point would manage flows between the grid connection, solar panels, batteries, EV chargers and household loads. The router would make real-time decisions based on electricity prices, grid constraints and local demand, charging batteries or vehicles when electricity is abundant and supplying local loads when demand peaks.
When thousands of such routers operate together they create a distributed energy network similar in principle to the way data moves across the internet. A DC backbone improves the efficiency of such a system because many modern energy technologies already operate internally on direct current including solar panels, EV batteries, stationary batteries and many variable-speed electric motors. Traditional AC networks repeatedly convert electricity between AC and DC as it moves through devices, wasting energy at each conversion stage.
A DC backbone allows solar generation and EV batteries to connect more directly and efficiently. Gondola stations along the corridor could also become energy hubs hosting EV charging, V2G aggregation points and local solar or battery systems. Visitors arriving at Queenstown Airport could travel into town using the gondola and then access shared electric vehicles for last-mile journeys. When parked those vehicles could participate in V2G services, contributing storage capacity to the network. Gondola systems also generate electricity through regenerative braking when cabins descend, and a DC backbone would allow that energy to be captured and stored in EV batteries or local storage systems rather than simply dissipated.
Queenstown’s housing mix adds another dimension to this opportunity. The district has a high proportion of holiday homes and short-term rentals that may sit empty for long periods yet remain connected to electricity infrastructure. Many of these buildings could host rooftop solar and battery systems that continue producing and storing energy even when unoccupied, effectively turning parts of the tourism accommodation sector into distributed generation assets embedded within the local energy system. When combined with EV fleets and intelligent building routers this creates a basin-wide energy buffer that reduces peak imports from the national grid while improving resilience if the transmission corridor is disrupted.
The Queenstown Electrification Accelerator already aims to demonstrate how electrification and distributed energy can reduce infrastructure costs and improve resilience in a tourism economy. Integrating that programme with a gondola transport corridor and a regional DC backbone would extend the concept into something even more powerful: a working demonstration of bidirectional electricity flows, distributed storage, flexibility markets and microgrid operation in a real community. Queenstown would not only address two major infrastructure challenges at once but also create a globally visible example of how transport, tourism and energy systems can evolve together in a fully electrified economy.
References
Rewiring Aotearoa https://www.rewiring.nz/
The Gondola Project https://lwb.co.nz/content/queenstown-gondola-by-2028/
Gondola Investors https://crux.org.nz/crux-news/southern-infrastructure-announces-partners-for-queenstown-gondolaprojects