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The EnPot system for power modulationPower modulation of aluminium smeltingAluminium smelting cells was developed over many years of research and plant trials by the Light MetalsMetals Research Centre. The early development goals were to facilitate sidewall heat transferHeat transfer, to enable amperage creep, and increased production at existing smeltersSmelter. Since that time, market conditions around the world have undergone unprecedented changes. The inherent capability of EnPot to stabilize cell operations at increased or decreased cell voltageVoltage is being harnessed allowing profitable operation of smeltersSmelter to support variable renewable energy usage directly or in power grids and become an enabler of energy system decarbonisation. This is becoming especially urgent for the smelting industryIndustry in ChinaChina that represents nearly 60% of world production and is undergoing rapid regulatory changes in addition to power supply challenges. This paper reviews the fundamental heat transferHeat transfer and pot controlPot control solutions for sustainable power modulationPower modulation, the changing landscape for smelting worldwide, and the latest developments in ChinaChina.

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Evolution of Power Modulation Technology in Response to Changing Market Conditions Worldwide

  • 会议论文

  • 发表日期：

    2025年

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  • Nick B. Depree,
  • Yashuang Gao,
  • Mark P. Taylor,
  • John J. J. Chen

摘要

The EnPot system for power modulationPower modulation of aluminium smeltingAluminium smelting cells was developed over many years of research and plant trials by the Light MetalsMetals Research Centre. The early development goals were to facilitate sidewall heat transferHeat transfer, to enable amperage creep, and increased production at existing smeltersSmelter. Since that time, market conditions around the world have undergone unprecedented changes. The inherent capability of EnPot to stabilize cell operations at increased or decreased cell voltageVoltage is being harnessed allowing profitable operation of smeltersSmelter to support variable renewable energy usage directly or in power grids and become an enabler of energy system decarbonisation. This is becoming especially urgent for the smelting industryIndustry in ChinaChina that represents nearly 60% of world production and is undergoing rapid regulatory changes in addition to power supply challenges. This paper reviews the fundamental heat transferHeat transfer and pot controlPot control solutions for sustainable power modulationPower modulation, the changing landscape for smelting worldwide, and the latest developments in ChinaChina.