Hot dry rock geothermal energy Hot dry rock geothermal energy Hot dry rock (HDR) is an abundant source of geothermal energy available for use. A vast store of thermal energy is contained within hot - but essentially dry - impervious crystalline basement rocks found almost everywhere deep beneath the earth’s surface. A concept for the extraction of useful amounts of geothermal energy from HDR originated at the Los Alamos National Laboratory in 1970, and Laboratory researchers were awarded a U.S. patent covering it. Although often confused with the relatively limited hydrothermal resource already commercialized to a large extent, HDR geothermal energy is very different. Whereas
Hot Topic $122 million. However, the company received a $140 million counter-offer from GameStop, which Hot Topic did not choose to exceed. On October 14, 2015, Hot Topic launched BoxLunch, a gift and novelty retail store. For every $10 spent, a meal is donated to a person in need. The company sponsored the 2004 Ozzfest concert tour, the 2005 through 2007 Sounds of the Underground tour, the 2008 Taste of Chaos tour, and had a stage at and sponsored the 2008 and 2009 Rockstar Energy Drink Mayhem Festival tours. The company went on to sponsor Black Veil Brides 2014 Black Mass tour