Hot dry rock geothermal energy makes use of hot fluids found naturally in basement rock; but such HWR conditions are rare. By far the bulk of the world’s geothermal resource base (over 98%) is in the form of basement rock that is hot but dry—with no naturally available water. This means that HDR technology is applicable almost everywhere on earth (hence the claim that HDR geothermal energy is ubiquitous). Typically, the temperature in those vast regions of the accessible crystalline basement rock increases with depth. This geothermal gradient, which is the principal HDR resource variable, ranges from less than 20 °C/km to over 60 °C/km,
The Bitch Is Back ... Live and one from "Dancin' on the Edge". Lita's quotes about the album was "There was nothing on it but raw energy, and that's what you get with The Bitch is Back. There's a lot of emotion and aggression behind it. Plus, I've got a smoking hot band. Mitch Perry [guitar] and I can read each other like a book. We don't even have to speak. I've known him since 1983. He's like family." "Rock Revolt" magazine rated the album favorably and wrote that it was "raw and real and that’s what rock and roll is all about." Geeks of Doom