Zadok is president of the Southern African Energy Efficiency Confederation (SAEEC) and has been active in the energy sector in for more than 12 years. He has fulfilled various roles from energy consultant focused on energy related tax incentive and grants, saving clients more than R3.5 billion Rand. He is an expert in Measurement and Verification and is a director of Oelinga, which focuses on resource efficiency and is a SANAS accredited inspection body. He has also contributed to literature in energy, publishing an article in the journal energy and coordinating the development of the SANS Technical Guideline 55 for traceability.
