Nation's Largest Battery Storage Project Charges Forward in Kern County

Lithium-ion batteries | Photo: Argonne National Laboratory/Flickr/Creative Commons License

The largest battery-based grid power storage system in North America just went online in Kern County.

With a storage capacity of 32 megawatt-hours, enough to power a typical American home for about 15 months, Southern California Edison's Tehachapi Energy Storage Project is intended to allow grid operators to store surplus power from nearby fields of wind turbines in the Tehachapi Wind Resource Area.

The storage project is made up of more than 600,000 lithium ion battery cells similar to those used in electric cars, housed at Edison's Monolith Substation east of Tehachapi.

Feds Broke Law Approving Wind Project Near Eagle Nests, Lawsuit Claims

Golden eagle rears chick in nest near the Tule Wind site, April 2011 | Photo courtesy American Bird Conservancy, obtained via FOIA request

A conservation group and two area residents have sued the federal government over its approval of a wind project in eastern San Diego County they say poses an unlawful risk to golden eagles.

The Santa Ysabel-based group Protect Our Communities, along with East County residents Dave Hogan and Nica Knite, filed suit Wednesday against the Bureau of Indian Affairs and the Department of the Interior. The plaintiffs charge that the agencies' approval of a second phase of the Tule Wind Project violates federal environmental laws and threatens San Diego County's remaining golden eagles.

The project's second phase, on the Ewiiaapaayp Kumeyaay Indian Reservation near Alpine, would add up to 20 new large turbines to the larger Tule Wind project, most of which is on BLM lands in the McCain Valley area. The U.S. Fish and Wildlife Service has warned project owner Iberdrola Renewables that Tule Wind as a whole poses too high a risk to local golden eagles for the agency to grant the project's second phase a permit to allow it to kill eagles.

Desert Energy Plan Would Devote 2 Million Acres To Renewables

The Draft DRECP is out, after years of delay | Photo: DRECP

A long-awaited master planning document in the works since 2008 that will guide renewable energy development in the California desert is out in draft form today, and residents of the West Mojave and some other parts of the desert will not be happy.

The draft Desert Renewable Energy Conservation Plan, or DRECP, which attempts to craft a region-wide development framework for 22 million acres of California desert in six counties, would designate more than two million acres as renewable energy Development Focus Areas (DFAs), mainly clustered in the western Mojave, the Barstow-Victorville area, eastern Imperial County, and the I-10 corridor in Riverside County.

DFAs, where permitting for renewable energy development would be fast-tracked, would also be created near Tecopa, Lucerne Valley, and Ridgecrest, as well as a geothermal-oriented DFA in the southern Owens Valley near Olancha. The goal is to promote the construction of up to 20,000 megawatts of new wind, solar, and geothermal power generating capacity in the DRECP plan area by 2040.

What Does 'Carbon-Neutral' Really Mean?

It's not so simple to figure out your company's carbon footprint | Photo: World Bank Photo Collection/Flickr/Creative Commons License

A segment on KCET's award-winning TV show "SoCal Connected" has been produced in tandem with this story. Watch it here now.

Protesters clogged the streets of New York City on Sunday in the largest march ever focused on the threat of climate change. The People's Climate March in Manhattan, with at least 100,000 participants, is just the latest piece of evidence that more and more people are worried about our warming world. As our concern over climate change mounts, environment-savvy entrepreneurs and others are looking for ways to shift the way we run our society to have less of an impact on the climate.

As businesses start looking for ways not to affect the planet's natural carbon cycles, the phrases "carbon-neutral" and "carbon-negative" have increasingly become industry buzzwords. They're shorthand used to describe that goal of putting fewer greenhouse gases into the atmosphere, or none at all. But what do they really mean?

At first glance, they seem simple. "Carbon-neutral" means that whatever you're doing, making products or shipping them or whatever your business does -- we'll call it a "widget" for simplicity's sake -- you're not adding any greenhouse gases to the air. A carbon-negative widget actually causes greenhouse gases to be removed from the atmosphere. Both are great goals, but it turns out they're not so simple to describe.

Feds Fund Research Into Taller Wind Turbines

Taller wind turbines could be coming to an open space near you. | Photo: Dennis Wilkinson/Flickr/Creative Commons License

The U.S. Department of Energy announced Thursday it's plowing $2 million into two groups working on ways to build wind turbines that are one and a half times taller than current designs.

The intent is to harness winds at higher altitudes, which are often stronger and steadier than more turbulent winds closer to the ground. Making wind turbine supports taller would also allow longer rotor blades, which can drive bigger turbines.

Onshore wind turbines installed in the U.S. in 2013 had an average hub height of 80 meters, or about 260 feet. DoE grant recipients Keystone Towers of Massachusetts and Iowa State University are working on separate technologies that could result in sturdy, relatively inexpensive wind turbine towers as tall as 120 meters, or about 400 feet.

California Set to Approve Controversial Solar Plant

Palen as imagined with two towers | Image: California Energy Commission

The California Energy Commission gave tentative approval Friday evening to a reconfigured solar power plant in Riverside County that opponents say potentially poses a serious risk to migrating birds.

At 4:55 p.m. on Friday, September 12, the commission announced a preliminary decision to approve what is essentially half of the proposed Palen Solar Electric Generating System, which would have placed 170,000 of mirrored heliostats on just under 3,800 acres of land adjacent to Interstate 10. Those heliostats would have focused sunlight on boilers atop two 750-foot towers -- the tallest structures between Los Angeles and Phoenix.

In Friday's decision, the commission gave preliminary approval to a version of the project that would include just one tower and about 1,900 acres of heliostats, and leaves the way open for Palen's owners to build the second half of the project in the future.

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