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Iceland;power-station;power;electricity;energy;geothermal;geothermal-energy;geothermal-electricity;steam;steaming;heat;hot;bore-hole;tapping;borehole;pipe;piping;temperature;geothermal-power;vulcanicty;climate-change;global-warming;carbon-footprint;carbon-neutral;geology;plate-tectonics;tectonic;Hellisheidi-power-station;lava;lava-field;lava-flow;magma;rock;Hellisheidi;Hengill;energy;electricity;green;eco;environment;renewable-energy;clean-energy;green-energy;green-electricity;chimney;man