Iceland Geothermal Energy Consumption is set to reach 193,040 Terajoules by 2026 from 177,300 Terajoules, will be up 4.3% per year. Since 2016, the demand grew 1.6% year on year close to 472,630 Terajoules. , and respectively were numbers 2, 3 and 4 in this ranking.