Geoffrey McMahon is Pauline Hanson’s One Nation candidate for the seat of Isaacs. With an impressive 52-year career as a high-voltage electrical engineer, Geoffrey brings a wealth of real-world experience, technical insight, and analytical thinking to the political arena.

A Chartered Professional Engineer (CPEng) and member of Engineers Australia (MIEAust), Geoffrey’s credentials span national and international registers (NER, RPEQ, RPEV). He has worked across Australia and abroad delivering critical energy solutions in both the public and private sectors. His expertise makes him uniquely qualified to address one of the nation’s most pressing issues: Australia’s failing energy policies and the spiralling cost of renewable infrastructure.

Geoffrey shares One Nation’s concern that the rush to renewables is driving up household costs, jeopardising grid reliability, and ignoring the long-term economic implications. He says, “I can demonstrate mathematically the immense construction and maintenance costs of renewables—and how they’re being misrepresented by politicians and corporations.”

Motivated by a deep love for his country and frustration at political mismanagement, Geoffrey is standing for federal parliament to offer practical, technically sound solutions to complex national issues—from energy reform to infrastructure planning and cost-of-living pressures.

Geoffrey believes Australia deserves leaders who think clearly, act responsibly, and put the national interest first. With One Nation, he’s ready to be that voice of reason in Canberra.