The Environmental Board granted Utilitas a temporary permit to use oil shale oil in the Mustamäe gas boiler house to ensure the operation of district heating in Tallinn and Maardu in case of a disruption or insufficient supply of natural gas, limiting the amount of oil shale to 20,000 tons and requiring separate notification of each incident. #põlevkiviõli #gaasivarustus #kaugküte (translated)
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Utilitas sai loa teatud juhtudel Mustamäed põlevkiviõliga kütta
