Solar Thermal Energy Plant

Solar energy can be produced in a number of ways.south, drive through Boulder City following the signs
There is the familiar solar panel - they are becomingand just a stone throw outside of town take the exit
increasingly common as they become more and moreto "Searchlight." Within a mile or two you should see
affordable. Solar panels produce solar energy throughthe 350 acre solar energy plant on the right-hand side.
the process called photovoltaics: the rays of the SunAs of writing this article (June of 2007), it is not
hit the silicon crystals in the panel thus inducing a flowoperational yet. It appears that there is still quite a bit of
of electrons. Another way to extract energy formconstruction is to be done. When complete, it will
sunlight is the solar thermal process.generate enough power through solar energy to
Solar thermal energy is gathered by the use ofsatisfy the needs of 60 thousand of homes. The
parabolic mirrors. The mirrors are positioned to facedrawback is that power generated this way is still
the Sun, and a clear tube is placed at the focal pointabout three times more expensive than if a coal-fired
where a liquid flowing through the tube is heated. Next,plant was used.
the pipes are run through a boiler where the the steamA major advantage of generating solar energy this
generated spins the generators creating electricity. Thisway as opposed to the use of solar panels is that it is
step is not unlike what one might see in a traditionalquite low-tech compared to photovoltaics. The silicon
coal-fired plant. All in all, it is a fairly simple and low-techcrystals needed to generate a flow of electricity when
process as far as the technical requirements forit is hit by sunlight are formed by baking the compound
designing and building such a plant is concerned.in an oven then allowed to slowly cool to form the
There aren't too many of these plants around thecrystals. It requires specialty equipment, which is quite
world. One was built at the end of the 70's in responseexpensive. Even with larger production volumes, solar
of the oil shortage and it is located in the Californiaenergy through photovoltaics is quite a bit more
desert only hours from Nevada Solar One.expensive than conventional power. Solar thermal
This solar energy plant is located 20+ miles outside ofpower faces the same problem. However the
Las Vegas in the Eldorado Valley south of Bouldertechnology requirements are low, economics of scale
City, NV. If you are driving from Vegas, take Hwy 95should more easily close the gap.