Iceland:

Reykjavík Energy Pioneers Carbon and Hydrogen Sulfur Sequestration Technology (Business Green)

One of the world's largest geothermal power companies is taking steps to virtually eliminate its environmental footprint over the next five years, through the use of a new carbon sequestration technology that could have global implications.

Orkuveita Reykjavíkur (Reykjavík Energy) is one of Iceland's state-owned power companies, supplying around half of the island's heat and electricity through geothermal wells and hydropower plants.

Geothermal power offers a renewable supply of power, but it is not strictly zero carbon as plants typically emit between zero and four per cent of the CO2 emitted by a traditional coal-fueled power plant per unit of electricity generated.

As a result, Reykjavík Energy's geothermal boreholes and plants still pump around 70,000 tonnes of carbon dioxide (CO2) emissions and 16,000 tonnes of toxic hydrogen sulfide (H2S) into the air each year.

Now the company is undertaking a pilot project that could allow it to capture and store or even market CO2, and separate out and store the highly corrosive H2S using the same process.

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