Solar Energy
|
Photo: stock xchng |
Background
Construction of the largest solar thermal power plant to
be built in 15 years, in Boulder City, Nevada, is nearly
complete. In addition, the 64MW Nevada Solar One power plant
will generate enough power to meet the electricity needs
of about 40,000 households and follows in the steps of the
354MW solar thermal power plants located in California’s
Mojave Desert. While California’s solar plants have
generated billions of kilowatt hours of electricity for
the past two decades, the Nevada Solar One plant will use
new technologies to capture even more energy from the sun.
Impacts on birds
The
main impact on birds is due to the large footprint needed
for commercial-scale energy production. In addition, there
has been some data on bird strikes. Researchers, who have
studied avian mortality at Solar One over a 40-week period,
documented the death of 70 birds (of 26 species). The estimated
morality rate was 1.9-2.2 birds per week; 57 birds (81%)
of 20 species died from collisions with Solar One structures,
mainly the mirrored surfaces of heliostats; 13 birds (19%)
of 7 species died from burns received by flying through
"standby" points. The impact of this mortality
on the local bird population was found to be minimal (0.6-0.7%
per week).
|