The Meaning Of The Name Regina. Meaning of Regina: Late Latin name meaning âqueenâ. It was in use as a Christian name from early times, and was borne by a 2nd-century saint. In England it was used during the Middle Ages in honour of the Virgin Mary, and it was later revived in the 19th century.
The initial costs of geothermal energy are high -- wells can cost $1 to $4 million each to drill, and installation of a home geothermal pump system can run as much as $30,000 [sources: REPP, Consumer Energy Center ].
Why is geothermal energy renewable source of energy? Geothermal energy (earth's thermal energy in form of heat generated and stored in Earthâs core) is renewable source of energy because earthâs heat is practically inexhaustible source of energy that is being replenished by radioactive decay of minerals at a rate of 30 TW.