Silica scaling
A problem and an opportunity
Solving the Costly Problem of Silica Scaling
Silica scaling is a major challenge for geothermal power stations, leading to clogged pipes and reinjection wells, reduced well lifespan, and ultimately, lower power generation.
At Geo40, we’ve developed a patented silica removal technology that significantly reduces—or even eliminates—silica scaling. A 2021 study by GNS Science confirmed the success of our Northern Plant at Ohaaki Geothermal Power Station, demonstrating the elimination of silica buildup in reinjection wells.
The benefits?
Eliminate ALL Scaling-Associated Costs
Up to 25% of power station OPEX costs.
Reinjection Well Lifespan Increased from 5 to 25 Years
Validated by independent studies in Japan (supported by GERD and NEDO).
Unlock Additional Electricity Generation or Process Heat Sales
Through the improved utilisation of geothermal heat, 10% more power generation can be recovered.
Unlock New Revenue Streams
Through the manufacturing and sale of colloidal silica products.
Sequester Greater Volumes of COâ‚‚
Achievable due to lower reinjection temperatures.
With Geo40’s proven technology, geothermal owners and operators can maximise efficiency, cut costs, and extend the life of their critical infrastructure.
We are now ready to license our silica recovery technology to geothermal power generators, helping to eliminate silica scaling whilst offering new mineral revenue opportunities. We are currently showcasing what we can do both at our Northern Plant located in the North Island of New Zealand and through our global piloting program.
If you want to learn more, please be in touch.
Many geothermal operators have invested in the search for a sustainable solution to silica scaling. Only our New Zealand partner has succeeded in this quest to date.
Geo40 has the answer.
Unlocking More Value from Geothermal Operations
At Geo40, we go beyond preventing silica scaling. We help geothermal operators maximise efficiency and unlock new revenue opportunities.
By working closely with each operator, we collaborate to determine the optimal reinjection temperature and plan to recover silica effectively to prevent scaling and create new, valuable opportunities.
If you have silica scaling challenges or just wish to pursue new revenue opportunities, contact us today.
Natural Nanotechnology
Colloidal silica is a valuable nano-particle. Our plants can make customised silicas where we can control particle size, size distribution, choice of stabilising ion and other variables.
We currently supply over a dozen markets.
Our 1430nm colloidal silica is measured to have a carbon footprint slightly higher than 200kgs of carbon per metric tonne of product across Scope 1,2, and 3 emissions under certain manufacturing conditions.
Advancing Sustainable Geothermal Energy
As a baseload renewable energy source, geothermal power plays a crucial role in the global energy transition. However, increasing scrutiny over natural COâ‚‚ emissions has led many geothermal operators to face emissions levies and carbon taxes.
At Geo40, we provide this solution. Our silica-recovery technology enables enhanced COâ‚‚ sequestration, helping operators reduce their environmental impact while maintaining efficient power generation.
Successful COâ‚‚ sequestration depends on two key factors:
Substantially reduced silica levels
in reinjection fluids.
Lower reinjection temperatures
to optimise COâ‚‚ solubility.
Geo40’s proven technology delivers both, making sustainable geothermal energy even cleaner. By partnering with leading experts, we help geothermal operators integrate carbon sequestration into their operations, driving long-term sustainability and regulatory compliance.
