Researchers have found “white oil,” also known as white hydrogen, buried deep down in the earth’s surface. Being the first of its kind, this discovery could change the trajectory of renewable energy in the world. Very different from traditional energy resources that require a lot of input and still produce carbon emissions, white hydrogen is naturally consistent, making it a suitable sustainable substance.
Natural hydrogen, often known as “white” or “gold” hydrogen, is becoming more popular around the world as a possible game changer in the search for affordable, low-carbon energy sources. According to data by Rystad Energy, 40 businesses were looking for natural hydrogen resources at the end of the previous year, compared to just 10 in 2020. Australia, the United States, Spain, France, Albania, Colombia, South Korea, and Canada are all now conducting exploratory work.
Why is white hydrogen so valuable, and what is it exactly?
Unlike its well-known cousins, green, blue, and grey hydrogen, white hydrogen, also known as natural hydrogen, is found in subsurface deposits in its pure form. Conventional methods of producing hydrogen include reforming methane or splitting water molecules, both of which can result in pollutants and high energy use. White hydrogen, on the other hand, is found naturally and can be used with little preparation.
What makes it valuable is that white hydrogen’s cost advantage over other types of hydrogen, because it occurs naturally, is one of its most promising features. Green hydrogen, which is made from renewable power, is currently more than three times more expensive than grey hydrogen, which is made from fossil fuels and costs less than $2 per kilogram (kg) of hydrogen on average.
White hydrogen would still be less expensive, but the price of renewable hydrogen is anticipated to decrease as electrolyser prices decline in the upcoming years. It is one of the cleanest fuel sources ever found because its extraction technique produces virtually no carbon emissions, and because its substances are found in large quantities, there is an opportunity for long-term supply as well.
Where have they found these huge white hydrogen reserves?
The discovery of hydrogen underground was previously believed to be improbable due to its capacity to permeate rock strata, even though the first accidental finding took place in Mali some 37 years ago. However, new tools have been developed to detect dissolved hydrogen in rock formations up to 1,500 meters below the surface, including hydrogen-sensing gas probes.
In deep boreholes, these probes monitor and examine dissolved gases using spectrometers. Researchers are already creating probes that can reach even deeper. Although there have been previous detections of natural hydrogen traces, this is the first time that large, commercially viable amounts have been found. Geological formations in areas like Africa, the US, and portions of Europe, where the conditions are favourable for the production of these deposits, are currently the attention of scientists and energy businesses.
This has sparked interest not only in scientists and researchers but investors and governments are looking to capitalise on this energy source discovery. This is because countries have so long been dependent on fossil fuels or imported hydrogen that they see this as an opportunity or privilege to develop their own energy independence. White hydrogen certainly has the potential to challenge traditional energy.
Small actions have been taken by oil firms over white hydrogen
Some oil corporations have taken little moves on white hydrogen, such as Repsol in Spain and Total and Engie in France. The biggest companies in the sector are not very interested, but the findings of the first hydrogen hunters may alter that. The oil majors, who followed the early shale gas ‘wildcatters’ into fracking, may enter the market if white hydrogen can live up to the expectations. This time, the outcomes might also benefit the climate.