Mine slurry, consisting of water combined with a mixture of mined materials like ores or tailings, harbours a substantial amount of energy. The underlying concept is straightforward yet powerful: by capturing and harnessing the energy inherent in the flowing slurry, electricity generation (and energy storage) become tangible possibilities. This presents a compelling opportunity for mining operations, enabling them to tap into an existing resource that is readily available within their infrastructure. 

To provide a comprehensive understanding of the immense potential of mine slurry energy generation, consider a 5MW solar photovoltaic (PV) plant in the UK, which generates approximately 13,800 kWh of electricity. Remarkably, this energy output is equivalent to the daily slurry flow of 30,000 tons at an elevation of 175 meters. Now, envision the possibilities when specialized turbines, meticulously crafted for slurry energy extraction, are installed within mining operations. With a daily slurry flow of 30,000 tons comprising water and mine material, the potential for electricity production in kilowatt-hours (kWh) becomes substantial. This vividly exemplifies the significant energy potential concealed within mine slurry, positioning it as a powerful contributor to sustainable energy production. 

How much energy are you losing?

The table above illustrates the potential energy in slurry. 

One of the notable advantages of mine slurry energy generation is its reliance on the existing slurry infrastructure within mining operations. Unlike constructing new solar PV or wind projects, which often entail significant costs and land requirements, the utilization of slurry as an energy source leverages the infrastructure already in place. This reduces the need for additional capital investments and minimizes the footprint associated with developing new energy projects. 

Furthermore, integrating slurry energy generation into existing mining operations presents an opportunity for improved energy self-sufficiency and a commitment to the circular economy. By tapping into the energy potential of the slurry flows that are already being transported and processed within the mining site, mining companies can reduce their reliance on external energy sources. This enhances the operational resilience and sustainability of mining operations, especially in remote or off-grid locations where access to traditional power grids may be limited. 

At RheEnergise, we recognise the value of integrating specialised technologies to harness the energy content of mine slurry. By leveraging our expertise in turbines, valves, power conversion systems, and advanced control systems, we enable mining operations to extract renewable energy from their existing slurry infrastructure. Through collaborative efforts with mining companies committed to achieving net-zero emissions, we aim to foster a greener and more sustainable future for the mining industry. 

Mine slurry energy generation alongside energy storage holds tremendous promise as a sustainable solution for the mining industry's ambitious decarbonization goals. By tapping into this overlooked resource, mining companies can reduce their environmental impact while achieving greater energy self-sufficiency. It is imperative that industry players, technology developers, and policymakers join hands in exploring and advancing the potential of mine slurry energy. Let us seize this opportunity to shape a greener future for the mining industry and pave the way towards a more sustainable planet.