Drilling for promising renewable energy sources to cost $30 mln, says expert 0 02.10.2018 17:16 Tass.com Drilling a well 10 kilometers deep for geothermal power plants, which are viewed as promising renewable energy sources for the future, is estimated to come to about $30.6 mln Партнёры Smi24.net Все новости за 24 часа Музыкальные новости Агрегатор новостей 24СМИ