1. High Energy Requirement: Aluminum smelting is one of the most energy-intensive industrial processes. It takes around 13,000 to 16,000 kilowatt-hours (kWh) of electrical energy to produce one ton of aluminum from alumina.
2. Continuous Power Supply: Aluminum smelters operate continuously, 24 hours a day and 365 days a year. They require a reliable and constant source of power to maintain the continuous electrolysis process.
3. Energy Efficiency: Hydropower is a reliable renewable energy source that provides a steady supply of electricity with minimal downtime. Hydroelectric power plants use the energy of flowing water to generate electricity without consuming substantial amounts of fossil fuels or emitting greenhouse gases.
4. Environmental Sustainability: Unlike fossil fuel-based energy sources, hydropower is considered a clean and sustainable energy source. It has a low environmental impact, producing electricity with minimal carbon emissions, air pollution, and waste generation.
5. Cost-Effectiveness: In regions with abundant water resources and well-developed hydroelectric infrastructure, hydropower can be a cost-effective electricity source for aluminum production. The relatively low operating costs of hydroelectric power plants make it competitive with other forms of electricity generation.
In addition to environmental and cost advantages, many aluminum production facilities are strategically located near hydroelectric power sources to take advantage of the reliable and sustainable energy supply. Hydropower has long been a preferred energy source for aluminum production, helping to reduce both operating costs and the environmental footprint of the industry.
