Allasso Energy Ongoing Geothermal Projects
Karratha South
Located in the high demand Pilbara coastal area, Allasso Energy’s Karratha South permit provides a huge opportunity to deliver reliable green baseload power generation into the existing heavy power users of the Pilbara coastal area and NWIS. As many of the areas users continue with their decarbonisation strategies it presents opportunities for power producers such as Allasso Energy to meet this demand. Current estimates for the area indicate power requirements of over 3.5GW, a significant demand that reliable geothermal baseload can deliver as part of renewable power supply portfolio.
Geothermal power is also uniquely suited to Pilbara Data Centres supporting mine-site automation because it delivers firm, weather-independent renewable electricity with the reliability profile required for autonomous operations. Unlike intermittent renewables, it eliminates automation downtime risk while enabling genuine Scope-2 emissions reduction without reliance on oversized battery systems or fossil-fuel firming. This combination of operational certainty, decarbonisation credibility, and long-life infrastructure makes geothermal uniquely suited to renewable automation support in the Pilbara. Geothermal power generation also pairs with cooling, another critical component in Data Centres. All of this in a closed loop system ensuring water utilisation is efficeintly managed.
A range of geothermal options are being developed to enable Allasso Energy to scale power generation to deliver the required demand. Adjacent recorded geothermal gradients of Mardie-2 (87.1°C/km) and Mangrove Island (106°C/km) indicate high potential deliverability of the basement at shallow depths. An exploration program focussed on identifying the highest grade deliverable geothermal energy within this play type is underway. Matching this structured approach to a disciplined cost focused execution team allows Allasso Energy to commercialise this resource efficiently, with an expedited timeline to market.
Carnarvon Central
Carnarvon is recognised as a world class green energy location which has attracted global investment. Allasso Energy’s permit aims to solidify its presence in the region and provide geothermal energy as an always on renewable power source for Data Centres and industry. Underpinning this is confirmed geotehrmal gradients in the permit location of
Data centres powered by geothermal energy represent a step-change in digital infrastructure sustainability, delivering always-on, low-carbon electricity that is independent of weather and fuel price volatility. Geothermal provides true baseload power with exceptionally high capacity factors, making it ideally suited to the continuous, high-reliability demands of hyperscale, AI, and high-performance computing facilities. By colocating data centres with geothermal generation, operators can materially reduce Scope 2 emissions, eliminate exposure to intermittency risk, and secure long-term power price certainty under fixed offtake arrangements. Allasso Energy’s mid-enthalpy closed-loop geothermal systems further enhance this value proposition by offering a scalable, water-efficient solution that can also support direct cooling loads, improving overall energy efficiency and reducing total cost of ownership. This combination positions geothermal-powered data centres as one of the most credible pathways to genuinely net-zero, industrial-scale digital infrastructure in Australia.
Allasso Energy also recognises the existing agricultural industry that is dominant within the southern Carnarvon region. With proven hot water flows from low cost shallow reservoirs the potential to support this sector with controlled environmental parameters is significant. Direct usage geothermal allows for the optimisation of crops and aquaculture through direct control and optimisation of the growth cycle. The ability to directly heat, cool and control humidity through automated management systems allows complete and accurate environmental control that significantly increases yield and allows for expansion into adjacent marginal areas.
Allasso Energy is also assessing industry options for land based aquaculture within its permit, particularly within areas with direct ocean access lending itself to industries such as fisheries, prawns and asparagopsis (red algae feed supplement).
The expansion of these industries can offer significant direct benefits to Carnarvon.
Onslow Central
The Ashburton region presents a huge growth opportunity for Allasso Energy’s Onslow Central Permit. With high quality geothermal deliverability existing within a few kilometres of existing and planned major demand infrastructure, this permit provides solutions to the area’s decarbonisation requirements. Current estimates for existing green power demand are 500MW with planned major project options driving this up to 1GW within a few years.
Several different play types exist within the permit allowing deliverability risk to be managed. Offset data within the permit supports very high geothermal gradients of consistently >60°C/km nearest to Onslow. Including Topaz –1 (74.2°C/km), Topaz – 2 (63.7°C/km) and Cane River – 2 (76.6°C/km). The permit contains the highest recorded geothermal gradients within Western Australia presenting the lowest cost deliverability potential to industry.
An exploration program focused on identifying the highest grade deliverable geothermal energy closest to existing infrastructure has been prioritised. Matching this structured approach to a disciplined cost focused execution team allows Allasso Energy to commercialise this resource efficiently, with an expedited timeline to market.