Solar Towers Not Avian Annihilators

Solar power towers have had a reputation as alleged avian vaporizers since preliminary reports of birds being burned in mid-air at California’s Ivanpah solar thermal plant. Their reputation was muddied even more during tests early this year at SolarReserve’s Crescent Dunes power tower, whose intense beams of reflected light recently began generating power in Nevada. California public radio station KCET reported that as many as 150 birds were killed during one six-hour test in January. It is obviously upsetting to imagine birds ignited in the name of renewable energy. But avian mortality is a downside common to many modern human creations—including buildings, highways, and powerlines. Full data on bird mortality at Ivanpah, macabre as it might be, shows the death rate to be small and likely of little ecological significance. “The data does support a low level of avian mortalities and hopefully, through adaptive management and deterrence, it will go even lower,” says Magdalena Rodriguez, a senior environmental scientist with the California Department of Fish and Wildlife. Continue reading “Solar Towers Not Avian Annihilators”