Context: Claimed to be the first of its kind in the country, a pilot plant capable of manufacturing 99.999 per cent pure green hydrogen commissioned by Oil India Limited (OIL) in Assam.
About India’s first pure green hydrogen plant

• Oil India Limited (OIL) has taken the first significant step towards Green Hydrogen Economy in India with the commissioning of India’s First 99.999% pure Green Hydrogen pilot plant, with an installed capacity of 10 kg per day at its Jorhat Pump Station in Assam today.
• The plant produces Green Hydrogen from the electricity generated by the existing 500kW Solar plant using a 100 kW Anion Exchange Membrane (AEM) Electrolyser array.
• The use of AEM technology is being used for the first time in India.
• This plant is expected to increase its production of green hydrogen from 10 kg per day to 30 kg per day in future.
• The company has initiated a detailed study in collaboration with IIT Guwahati on blending of Green Hydrogen with Natural Gas and its effect on the existing infrastructure of OIL.

Green Hydrogen

• 'Green hydrogen' is pure hydrogen produced using renewable energy sources such as wind or solar power. 
• There are no natural hydrogen deposits on earth; it has to be extracted from other compounds by a chemical process. 
• If renewable energy (e.g. from Solar panels) is used to generate electricity for the electrolysis of water then the green hydrogen can be generated without any harmful emissions.