Showing posts with label energy transmission corridors. Show all posts
Showing posts with label energy transmission corridors. Show all posts

July 1, 2015

Eagle Mountain hydropower plant takes big step forward

A massive iron ore mining pit at Eagle Mountain in the remote desert east of the Coachella Valley. The Eagle Mountain iron mine was built in 1948 and closed in 1982. Today, some conservationists believe the old mine should become part of Joshua Tree National Park, which surrounds it on three sides. Eagle Mountain is just miles from the 550-megawatt Desert Sunlight solar plant, which is set to come fully online in January, and the small town of Desert Center. (Jay Calderon/The Desert Sun)

Sammy Roth
The Desert Sun


A controversial proposal to build a hydropower plant in the shadow of Joshua Tree National Park cleared a major hurdle Wednesday, in a surprising development that frustrated conservationists but encouraged some renewable energy advocates.

After two decades of trying to acquire the old Eagle Mountain iron mine — which was carved out of the southeast corner of Joshua Tree more than 60 years ago — the Eagle Crest Energy Company has finally succeeded. The Los Angeles-based firm announced Wednesday that it has purchased the site from the company formerly known as Kaiser Ventures, which built the long-dormant iron mine and for years refused to sell.

Eagle Crest's plan to build a 1,300-megawatt hydroelectric power plant — using billions of gallons of groundwater that would be drawn from an underground aquifer — still has to overcome several regulatory obstacles. But the proposal is now closer than ever to becoming a reality.

The project's backers say it would help California build more solar and wind power, a key priority as the state moves toward a 50 percent renewable energy mandate. The hydroelectric plant would work like a battery, storing excess energy generated by solar and wind farms when supply exceeds demand, and then releasing that energy when demand exceeds supply.

"As Riverside County continues to increase its role in delivering renewable power to the rest of California, we need to find ways to store energy for use at times when solar and wind are not generating power," county Supervisor John Benoit said in a statement released by Eagle Crest. "This project helps make renewable energy sources more viable, and in an environmentally sensitive manner."

But conservation groups and national parks advocates have slammed the proposal, saying it would waste water, harm several threatened species and use more energy than it generates. Many of them want to see Eagle Mountain added to Joshua Tree National Park, saying it has historic value as a well-preserved mining boomtown, in addition to conservation value.

"The costs significantly outweigh the benefits here," said David Lamfrom, California desert program director for the National Parks Conservation Association. "Whether you're looking at it from the angle of water or the angle of wildlife, this corporation wins and the public loses."

Nothing is simple when it comes to Eagle Mountain, which has been the subject of fiery debate in recent years.

Industrialist Henry Kaiser founded the iron mine and built the adjacent town in the 1950s, but the mine was shut down in the early 1980s as production of steel in the United States waned. For more than 25 years, the Kaiser subsidiary that still owned the site wanted to sell it to the Sanitation Districts of Los Angeles County, which would have turned it into a massive garbage dump. But that plan got tied up in court, and eventually the agency backed off.

Even when that plan fell through, Kaiser officials insisted they wouldn't sell the site to Eagle Crest, saying they had received a great deal of interest from mining companies. Eagle Mountain still has millions of tons of iron ore.

The deal with Eagle Crest is something of a compromise, because Kaiser will retain the right to sell rock and iron ore tailings that already sit in plain view at Eagle Mountain. A Kaiser representative didn't respond to a request for comment Wednesday, but the company will presumably try to sell that right to another company, since it has been in bankruptcy for several years.

That deal will no doubt frustrate conservationists, who oppose the hydropower plant as well as further mining.

In order to fill the reservoirs of the hydroelectric plant, about nine billion gallons of groundwater would be pumped from the aquifer under the Chuckwalla Valley over a period of four years. Eagle Crest officials have argued that's a small fraction of the groundwater held in the aquifer, and equivalent to the annual consumption of two Coachella Valley golf courses.

Conservation groups, though, say that kind of water consumption is irresponsible, especially during a historic drought. Park officials also worry that drawing on the aquifer could harm threatened species in and around the park.

"The potential that we could substantially deplete all of the springs in these three basins terrifies me," David Smith, superintendent of Joshua Tree National Park, told The Desert Sun last year. "It has the potential for wiping out bighorn sheep populations from all those areas."

Local activists have also accused Kaiser of illegally conspiring with state mining officials to keep control of Eagle Mountain, arguing that the company should have been required to give the site back to the federal government after it stopped mining iron.

For renewable energy advocates, the question of how to ramp up intermittent renewables like solar and wind — which only generate electricity when the sun shines or the wind blows — has long been a major challenge. With Californian lawmakers likely to adopt a 50 percent renewable energy mandate in the next few months, that challenge has become more pressing.

Right now, utility companies generally turn to natural gas-fired power plants, which contribute to climate change, to help integrate more solar and wind onto the grid. Some renewable energy experts say "pumped storage" projects like Eagle Mountain can help reduce the need for natural gas.

That argument appealed to Benoit, a longtime renewable energy supporter. The Riverside County supervisor said that while more environmental review is needed, he's hopeful the project's benefits will outweigh its potential impacts on water and wildlife.

"Those are issues that will be evaluated thoroughly in the environmental process," he said in an interview. "My guess is, it will come in on the side of, 'Yes, it does make sense.'"

The Federal Energy Regulatory Commission granted a license for the Eagle Mountain hydroelectric plant last year, but the proposal still needs to clear several legal hurdles, despite Eagle Crest now owning the land.

For one, the National Park Service petitioned the energy commission to reconsider its decision last August, and the agency has yet to respond to that request. Eagle Crest also still needs approval from the federal Bureau of Land Management to build transmission lines across public lands.

The biggest obstacle, though, could be pushback from local activists and national parks advocates, who could try to keep the hydroelectric plant tied up in court. Some have pointed out that parts of Eagle Mountain are designated for conservation under the Desert Renewable Energy Conservation Plan, an ongoing state-federal effort that would lay the ground rules for the next 25 years of clean energy development and conservation across the California desert.

Eagle Crest submitted comments to the Bureau of Land Management asking it to reverse those designations.

October 22, 2014

Southern California Desert Management Plan Worries Activists

A sweeping renewable energy management plan for Southern California's desert regions is stirring fears about potential new solar farms and transmission lines in San Diego and Imperial counties.

California power lines, Feb. 21, 2011 (Robert Couse-Baker)
By Erik Anderson
KPBS.org


A sweeping renewable energy management plan for Southern California's desert regions is stirring fears about potential new solar farms and transmission lines in San Diego and Imperial counties.

Federal and state officials have been crafting a desert management plan for five years.

The recently unveiled proposal would help manage development and habitat protection on 22 million acres of federal, state and privately owned land in the eastern part of the state.

The idea is to streamline the development process for renewable energy projects on about two million acres.

East County resident Donna Tisdale has fought against backcountry development for years. She's trying to get the word out that this plan could have major negative impacts.

"I had to contact a lot of farmers in the Imperial Valley to try and get them up to speed on what was going on," Tisdale said. "People in East County were kind of shocked to hear that there's at least one more 500 KV line, like Sunrise Powerlink, proposed."

Sunrise Powerlink is a 117-mile transmission line that connects San Diego with the Imperial Valley. It was put into service June 17, 2012.

The plan's architects consist of what they call "an unprecedented collaborative effort between the California Energy Commission, California Department of Fish and Wildlife, the U.S. Bureau of Land Management, and the U.S. Fish and Wildlife Service also known as the Renewable Energy Action Team."

The state and federal coalition is currently seeking public comment.

The desert energy and conservation protection plan is scheduled to be finalized next year.

September 26, 2014

Massive Solar Power Project for California Desert Scrapped

The proposed Palen Solar Electric Generating System. (Palen Solar Holdings)

by Chris Clarke
KCET.org


The consortium of solar companies seeking to build a 500-megawatt solar power tower project in Riverside County has formally withdrawn the project's application from consideration by the California Energy Commission.

The Palen Solar Electric Generating System had just received tentative approval from the Commission this month to build one of two planned 750-foot solar power towers in the eastern Chuckwalla Valley.

But on Friday afternoon, project owner Palen Solar Holdings formally withdrew its petition on behalf of the project, which likely means the project is dead -- at least for the foreseeable future.

Originally approved by the commission in 2010 as a large parabolic trough solar project, Palen changed hands in 2012 after its original owner Solar Millennium went bankrupt. Bought by BrightSource Energy, who later brought Abengoa Solar on as a project partner, Palen was redesigned to incorporate BrightSource's proprietary solar power tower technology, in which two 750-foot towers with boilers on top would be surrounded by tens of thousands of mirrors. The independently targetable mirrors, called heliostats, would have focused concentrated solar energy -- "solar flux" -- on the boilers, which would then have generated steam to turn turbines.

The project had come under fire for its potential threat to migrating birds from that concentrated solar energy after BrightSource's smaller Ivanpah Solar Electric Generating System began burning birds that flew through that plant's flux fields. Commission staff had estimated that each of Palen's two towers would pose more risk to birds than all three of Ivanpah's towers combined.

After a contentious series of hearings in which environmentalists and Native activists challenged Palen's likely impact on wildlife, visual resources, and Native cultural values, the commission recommended in December 2013 that the project's tower redesign be denied -- then reversed itself this month when Palen Solar Holdings agreed to build the projct one tower at a time, with the possibility to add thermal energy storage capability to the project at a later date.

Friday's withdrawal came as a surprise to observers of the process. BrightSource Energy Vice President Joe Desmond told ReWire in a phone conversation Friday afternoon that the withdrawal was made after careful consideration of all the factors involved. "We're withdrawing the project in the interests of a renewable energy solution that best reflects the interests of all the stakeholders in this process," Desmond told ReWire. "We're grateful to the California Energy Commission for their meticulous and careful consideration of our petition to amend [redesign] this project."

A formal statement by Palen Solar Holdings released Friday, signed by Desmond, said:

After carefully reviewing the proposed decision recommending approval of one tower, we determined it would be in the best interest of all parties to bring forward a project that would better meet the needs of the market and energy consumers.
We believe concentrating solar power, and specifically tower technology with thermal energy storage, can play a key role in helping California achieve its clean energy goals by providing the necessary flexibility needed to help maintain grid reliability. In addition, we are committed to bringing projects to the market that follow sound and responsible environmental measures to ensure all impacts are avoided, minimized or compensated for properly.

With the withdrawal in place, almost certain to be accepted by the commission, any new move to push the project forward would involve restarting the somewhat lengthy and cumbersome commission approval process. That is, unless the proposal was essentially identical to the earlier parabolic trough version of the project approved in 2010. It's worth noting that Palen Solar Holdings partner Abengoa Solar has extensive experience in building and operating parabolic trough solar power plants, including the Mojave Solar project near Harper Lake.

It'll be interesting to see how the project shapes up, if at all, in the next year. In the meantime, we'll have reaction to Palen's withdrawal from supporters and opponents on Monday.