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Showing posts from October, 2013

Interior Rolling the Dice on Future of the Desert Tortoise

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The U.S. Fish and Wildlife Service's (FWS) biological opinion provides a seemingly conflicted and reluctant expression of support for the Silver State South solar project on the basis of mitigation measures that it admits may not offset the damage done by the project to the viability of a key habitat linkage for the desert tortoise.  The biological opinion is FWS' contribution to the Bureau of Land Management's (BLM) environmental review of the Silver State South project, and evaluates how the project will impact the desert tortoise.   Perhaps to speed approval of the project, the opinion glosses over a significant potential consequence of the project - local extirpation of the desert tortoise population in the Ivanpah Valley.


The Silver State South solar project would be built at the pinch point of the hour-glass shaped Ivanpah Valley, and potentially isolate two populations of the desert tortoise; both the BLM and FWS acknowledge that "current research does not i…

Solar Decathlon Where It Belongs

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The Solar Decathlon is being held in California at long last.  The competition was first held in 2002, and features homes powered by rooftop solar panels, and built by teams from across the country and overseas competing to be the most sustainable in various categories.  The overall winning team must design and build a home that meets the following general criteria:

Is affordable, attractive, and easy to live inMaintains comfortable and healthy indoor environmental conditionsSupplies energy to household appliances for cooking, cleaning, and entertainmentProvides adequate hot waterProduces as much or more energy than it consumes. Consider the "DesertSol" entry designed and built by the University of Nevada, Las Vegas (UNLV).  The DeserSol house uses a solar thermal system to heat water and the home itself, photovoltaic panels to supply energy, and advanced engineering that reduces framing materials by nearly 20%.  The entry will be on display at the Las Vegas Springs Preserve …

Silver State South Solar Nears Approval; Problems Loom

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Tbe Bureau of Land Management (BLM) in September released the final environmental impact statement (EIS) for the Silver State South solar project, which would destroy approximately 3.7 square miles of intact desert habitat. Although the direct impact on wildlife may not compare to BrightSource Energy’s Ivanpah Solar project, the Silver State South project almost certainly will have significant long-term effects on the ability of the desert tortoise to maintain habitat connectivity.



The BLM’s preferred alternative supports the solar project, and secondarily designates an Area of Critical Environmental Concern (ACEC) to protect the desert tortoise habitat that First Solar does not want to destroy.  The ACEC is a welcomed sweetener, but still does not override the bitterness that arises from the fact that destruction of habitat for the solar project is completely unnecessary since the solar panels would be just as happy on already-disturbed lands somewhere else in the state.  Tortoises,…