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
What I'm For What I'm For What I'm For is the fifth studio album by American country music artist Pat Green. It was released on January 27, 2009 (see 2009 in country music) on BNA Records, and produced by Dann Huff. The album is his second for BNA, and his eighth overall. Lead-off single "Let Me" has charted in the Top 20 on the Hot Country Songs chart, peaking at No. 12. The first single release from the album is "Let Me". This song is his thirteenth chart entry on the Hot Country Songs charts, peaking at No. 12 in February 2009 and