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--simon (talk) 11:20, 5 January 2017 (UTC)[reply]

Talk pages are for discussing the article, not for general conversation about the article's subject. See WP:TALK#USE. The exhaust is water vapor, from condensation. See Geothermal power. Kendall-K1 (talk) 16:13, 5 January 2017 (UTC)[reply]