ARENA backs Calix electric kiln at PLS Pilgangoora: process design notes for engineers
Reviewed by Tom Sullivan
First reported on International Mining – News
30 Second Briefing
ARENA will provide up to A$38.1 million to PLS Group to build a lower‑emission lithium processing demonstration plant at the Pilgangoora operation in Western Australia, trialling Calix Limited’s electric‑kiln calcination technology. The electrically heated kiln aims to replace conventional fossil‑fuel‑fired calcination in spodumene processing, directly targeting one of the most energy‑ and carbon‑intensive steps in lithium concentrate upgrading. If successful at demonstration scale, the process could materially cut Scope 1 emissions from hard‑rock lithium refineries and influence future plant designs across the Pilbara.
Technical Brief
- Electrification of the kiln enables future coupling to on‑site renewables or contracted renewable power.
- Outcomes are expected to inform retrofit versus greenfield design choices for hard‑rock lithium concentrators.
Our Take
ARENA’s financing of Calix’s electric-kiln trial at PLS Pilgangoora comes as Western Australia is simultaneously deploying direct budget support for lithium producers facing low spodumene prices, signalling that both technology risk and price risk are being underwritten to keep the state’s lithium chain intact.
Within our Mining corpus, lithium pieces increasingly sit at the intersection of ‘Projects’ and ‘Sustainability’, and this ARENA-backed trial reinforces that new process routes at Australian operations are now competing for public capital alongside more conventional fee-relief and royalty measures.
Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.
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