Sustainable design

Based on research spun out of Imperial College in London in 2001, Ceres’ technology is designed to capture the high efficiency of solid oxide technology with an environmental and economic design.

Sustainable design

In preparation for mass manufacturing, we continue to innovate to incorporate sustainability into our design while improving robustness, cost and efficiency. We have completed a cradle-to-gate life cycle assessment of our 10kW stack, comparing its environmental impact to that of the previous generation. This assessment covers the entire process – from raw material extraction and processing to transportation, manufacturing and packaging – and is measured in kilogrammes of carbon dioxide equivalents ("kg CO₂e"). The results show that the 10kW stack has nearly halved the emissions impact compared to the 5kW stack.

Our groundbreaking technology offers a notable advantage by using widely available materials. Specifically, we use automotive-grade steel, which makes up 88% of the mass in our current generation’s stack, with about 40% sourced from recycled steel. Ceria forms the active chemistry of our cells, driving the conversion between molecules and electrons and vice versa. It is the most abundant rare earth metal and a commonly found material across the globe. Precious metals comprise less than 2% by weight of our stacks, which is considerably lower than conventional electrode supported solid oxide technology. Additionally, unique among solid oxide electrolysers, our system operates at a reduced temperature range of 450–630°C, allowing us to use standard automotive gaskets rather than fragile glass components. This combination of features not only provides our world-class technology but also delivers significant environmental and sustainability benefits.