Thursday, July 28, 2011

CEC Awards Funding To Energy-Storage Research

The California Energy Commission (CEC) has shown its support for energy storage by awarding $845,894 from its Public Interest Energy Research (PIER) program to energy-storage research projects.

EnerVault Corp. of Sunnyvale, Calif., will receive $476,428 to demonstrate the commercial viability of the company's latest battery energy-storage system with a dual-tracking photovoltaic system. The project will develop a battery system that will be expandable to utility-scale applications and integrate with renewable energy resources.

EnerVault will also work with other project partners to install and evaluate the system in Snelling, Calif. The total cost of the project is $9.53 million. The CEC’s grant will supplement a $4.76 million American Recovery and Reinvestment Act (ARRA) award that EnerVault, along with project partner Ktech Corp., received from the U.S. Department of Energy (DOE). EnerVault is providing $4.29 million for the project.

In addition, Fremont-based Amber Kinetics Inc. will receive $369,466 to research, develop and demonstrate a utility-scale flywheel energy-storage system. The project's total cost is $10 million. The CEC’s grant is the cost share for the company's ARRA award of $3.7 million from the DOE. Amber Kinetics and other partners are contributing $5.94 million for the project.

"As we strive to reach the state's renewable energy goals, research in energy-storage systems will reap significant benefits for California,” says CEC Chairman Dr. Robert Weisenmiller. “Energy-storage systems will improve efficiency and reliability in the electricity supply and facilitate the integration of clean, intermittent, renewable resources such as solar and wind.”

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http://www.renewgridmag.com/e107_plugins/content/content.php?content.7104

Wednesday, July 27, 2011

Military tests fuel-cell backup power systems

U.S. military bases are required to keep functioning even if there’s a power failure, so typically they have backup systems that run on diesel. 



But as part of a push to go green - which the military says will make soldiers less vulnerable and help and improve energy security - eight bases around the country will getting fuel-cell backup power systems, the government announced.


The demonstration project is a product of a U.S. Department of Energy (DOE) and U.S. Department of Defense (DOD) memorandum of understanding reached in July 2010 that is intended to "enhance national energy security and demonstrate leadership in transitioning America to a low carbon economy."

The departments said the fuel-cell project will provide an opportunity to "see how fuel cells perform in real world operations, identify any technical improvements manufacturers could make to enhance performance, and highlight the benefits of fuel cells for emergency backup power applications."

A total of 18 fuel cells will be installed, going in at Fort Bragg, N.C.; Fort Hood, Texas; the U.S. Military Academy at West Point, N.Y.; Aberdeen Proving Ground, Md.; Picatinny Arsenal, N.J.; Cheyenne Mountain Air Force Base, Colo.; the U.S. Marine Corps Air Ground Combat Center, Calif.; and the Ohio National Guard. 



The National Renewable Energy Laboratory (NREL) will collect performance data for the first two years of the five-year demonstration project, the departments said, with that data being made available to "fuel cell developers and commercial and government leaders interested in adopting this technology."

Fuel cell technology, while having significantly higher start-up costs than traditional batteries or generators, requires less maintenance, runs quieter and can be easily monitored from a remote location, the departments said.

The hope is that with targeted fuel cell demonstrations, the scale of deployment of fuel cells will increase, helping improve the economics of the technology and leading to more widespread adoption and use.

http://www.tgdaily.com/sustainability-features/57513-military-tests-fuel-cell-backup-power-systems


US military to install backup fuel cells

The US Department of Defense (DOD) announced plans last week to install 18 backup fuel cell power systems at eight military bases across the country.

Together with the Department of Energy‘s (DOE) National Renewable Energy Laboratory (NREL), the DOD will test how the fuel cells perform in real-world conditions and identify any potential technical improvements.

As well as highlighting the benefits of fuel cells and accelerating their deployment, the $6.6 million project will also identify areas of future research to further improve the technology.

The DOD currently uses diesel generators for backup power, but fuel cells require no petrol, are quieter, produce fewer emissions and typically need less maintenance.

But fuel cells are more expensive than other options. So one aim of the project is to improve economies of scale and drive down costs.

“The shared vision of the DOE and the DOD for a safe, secure energy future provides us with a strong foundation to work together on specific technologies,” says Energy Secretary Steven Chu. “Projects like these fuel cell systems will help reduce fossil fuel use and improve energy reliability at military installations across the country.”

For further information:
www.energy.gov
www.defense.gov


http://www.energyefficiencynews.com/power-generation/i/4356/

Pentagon Streamlines Approval for Energy Projects

By Karen Parrish
American Forces Press Service

WASHINGTON, July 26, 2011 – A Defense Department clearinghouse for renewable energy projects has approved 229 of 249 projects proposed in 35 states and Puerto Rico, Deputy Defense Secretary William J. Lynn III said last week.

“These projects represent 10 gigawatts of renewable energy generation capacity in wind energy alone,” Lynn said at an Army and Air Force energy forum.

“Our action removes a major stumbling block for developers who are trying to attract financing, showing the department’s commitment to supporting the president’s vision for energy … without compromising our national security,” the deputy secretary said.

Energy Secretary Steven Chu noted during a speech at the same forum that the Defense Department has played a crucial role in developing technologies, including the GPS system, the Internet and semiconductor electronics.

“As an early investor and adopter, [DOD] has actually advanced those technologies that have become the core wealth generators … of today,” he said.

Chu likened the development of renewable energy technology to a second industrial revolution. “We still need the energy and the power to propel our military, our economy, our world -- but we need to do it in a cleaner way,” he said.

And, the Defense Department will continue to play a seminal role in stimulating the clean energy revolution, Chu said.

David Belote, DOD’s siting clearinghouse executive director, said the year-old organization exists to provide speedy assessment of renewable energy projects’ effects on military capabilities.

Before the clearinghouse was formed, the Air Force and other agencies spent 15 months negotiating over a solar project that started operating in 2007 near Nellis Air Force Base, Nev., said Belote, who was the air base wing commander there at the time.

“Where the company first proposed building, it was going to have some significant electromagnetic interference issues on test and evaluation operations at the Nevada Test and Training Range,” he said.

Belote said that solar, and especially wind power, installations can cause electromagnetic interference and other issues for military electronic sensing devices. Wind turbines can measure 500 feet from base to blade tip, and “large spinning things” cause particular issues for radar systems, he said.

During both the Nellis project debate and later negotiations over the Shepherds Flat Wind Farm in northern Oregon, intense congressional pressure led the Air Force to consult MIT Lincoln Laboratory, whose experts said, “This can be fixed,” Belote said.

The potential halt of the long-planned projects was due in part to the regulations the wind industry uses, Belote said. Federal Aviation Administration and DOD approval of large-scale energy projects at the time wasn’t required until 30 days before construction. That period now is 45 days.

The wind farm was a $2 billion project that had been in the works for five or six years, Belote said. “The Senate was plenty irritated that the military, late in the game, was asking to block it,” he added.

Ultimately, DOD agreed to field test MIT’s solutions and withdrew its objections to both projects, Belote said.

A third project involved the area around Travis Air Force Base, an area of “huge wind potential” in Solano County, Calif., and may be the model for how to go forward, he said. Two major wind energy corporations, the Sacramento Municipal Utilities District, and officials at Travis Air Force Base and the Air Force’s Air Mobility Command joined efforts to ensure radar coverage of flight operations while allowing wind farms to be built near the airfield, the clearinghouse executive director said.

“They did something called a mosaic, or triangulation, and they took two other radars within 60 or 80 miles, and put them together so they could see behind the wind farms as they were constructed and not lose track of aircraft around the pattern,” Belote said.

“The closest turbine to the Travis tower is 4.6 miles away,” he added.

Last summer, with a growing list of proposed renewable energy projects near military installations, DOD officials hired the newly retired Belote to lead the new siting clearinghouse and speed review of renewable energy projects.

The three main areas his staff studies, he said, are the impacts of proposed projects on military readiness and training, test and evaluation capabilities, and homeland defense: long-range radar surveillance, border surveillance, coastal surveillance and critical vulnerability surveillance.

Belote said his staff took the approach of working collaboratively with other federal agencies, the military services, solar and wind industry associations and nongovernmental environmental organizations.

By early December, industry representatives had agreed to approach Congress jointly with clearinghouse staff members to set review guidelines, he said, but that plan was derailed when President Barack Obama signed the National Defense Authorization Act in January.

“It was much more stringent than we would have hoped, and set a very high bar for DOD to assess projects and to be able to object to projects,” Belote said. The act, he added, set a 180-day timeline for DOD to complete preliminary reviews on all the energy projects that had been delayed or deferred because of the department’s objections.

“We had 270 days, an additional 90 days, to figure out … a nationwide approach to wind, solar [and] geothermal in terms of high, medium and low military mission impact areas,” he said.

Belote said the act also limited DOD’s allowable objections to renewable energy projects to “unacceptable risk to national security,” while only the secretary of defense and three other top department officials can file such objections.

The clearinghouse staff then set to work to determine the size of the backlog and categorize projects. Projects with no significant risk of military mission failure would be rated green; projects with some risk but with logical mitigating strategies would be rated yellow; and “red” projects would be those with significant risk of mission failure and no apparent mitigating strategies.

“We ended up with 249 projects in the backlog,” he said.

Working with the military services, the Federal Aviation Administration and the Bureau of Land Management to review the backlog, clearinghouse staffers had by late May completed initial assessment of all projects, Belote said.

If all four of the military services, the North American Aerospace Defense Command, and defense readiness, test, and installations experts rated a project as green, “we trusted them,” he said.

The clearinghouse reviewed all yellow and red projects and returned them to the services with suggestions for mitigating risk, with a 30-day deadline for final review.

“We ended up coming back with 229 green, and 20 yellow or red,” Belote said. “Knowing what we have done to get to where we are, seven or eight [of the 20] will probably, after a little more work and study … go straight to green.”

Another seven or eight “amber” projects will likely be rated green if the developer agrees to some mitigating steps, he said.

“Move a handful of turbines, lower the height of some, maybe just remove a handful from a project, so that we preserve some military capability,” Belote explained.

Of the 229 projects already approved, 13 involve more than 100 wind turbines, five exceed 200, and two, in Michigan and Utah, may include more than 300, according to clearinghouse records.

Four or five of the 20 projects not yet approved “will probably stay bright red, because they are close to some critical, unique capabilities,” he said.

The clearinghouse board of directors, made up of senior defense officials, met on Day 180 of the review and approved the group’s results, he said.

Belote said his staff is now reviewing new project requests and compiling guidance on how to standardize ratings of future projects. They also are accepting requests from industry for early consultation, so developers can better forecast possible issues with planned projects.

“[And] we are working with [the Energy Department] … to do an interagency field test and evaluation of all the potential mitigation solutions, because we’ve discovered 80 to 90 percent of the issues surround wind turbines,” he said. “But the physicists and radar engineers understand what’s going on, so with some money and some political will, we can solve this.”

Belote said he believes technological advances and industry efforts will resolve interference issues within two to five years.

“There are a few places in the country that we need to keep electromagnetically pristine,” he said. “[But] we have taken big steps at being able to determine, in a publicly defensible, peer-reviewable way, what we need for military mission capability.”

Energy security and energy independence “are equally facets to national security as are military readiness, test and operations,” Belote said.


http://www.defense.gov/news/newsarticle.aspx?id=64814

Tuesday, July 26, 2011

"Energy Storage Critical to Solar Industry"

At the Intersolar conference held last week in San Francisco, energy storage was covered in a pre-conference session, as if storage were an optional topic solar companies could ponder, rather than something critical to the industry’s future. Could it be that most solar folks are still getting their minds around storage?

Because wind and solar are intermittent energy sources, their presence on the grid creates additional costs to balance the load, and in some cases, utilities “invoke curtailment” – i.e., reject solar energy and don’t pay for it as a result, said Andy Skumanich, CEO of SolarVision in a session on smart grid. In the future, solar and wind developers may be required to pay for storage, either through a rate schedule or by investing in their own storage devices to balance services, said Janice Lin, co-founder and director of California Energy Storage Alliance (CESA), a coalition working to expand the role of energy storage to promote the growth of renewable energy.


http://blogs.forbes.com/ericagies/2011/07/21/energy-storage-critical-to-solar-industry/

Storing energy is a problem that has long troubled physicists, but with renewable energy — and its variable nature — becoming an increasingly large part of our energy mix, the need for energy storage has become unavoidable. To keep power flowing reliably, grid operators must smooth out supply and demand on a second-to-second basis (known as frequency regulation), an hourly basis (intermittency), and on a daily, weekly, and annual basis (meeting peak demand).

Traditionally energy managers relied on extra fossil fuel generating plants to ramp up and down as necessary to meet these needs. But fossil fuel plants run most efficiently at full power, so “peaker plants” are even more polluting than those used for baseload power. In the 1970s, some pumped hydropower storage was built at existing dam reservoirs to store nuclear power that otherwise went largely wasted at night. But then storage stagnated until the recent boom in wind and solar.

Storage is a broad asset class that encompasses several technologies. Aside from bulk gravitational storage (pumped hydro), there’s bulk mechanical storage (underground compressed air), chemical storage (batteries), mechanical storage (flywheels), and thermal storage (using ice).

More important, storage has several potential value streams, said Lin in a presentation at Intersolar.

+ Systems operators can use storage for ancillary services — frequency regulation and addressing intermittency and peak demand — improving reliability.

+ Together, even small, distributed systems can have a grid-scale impact to reduce peak demand.

+ Charging storage technology during off-peak when power is cheaper and discharging during peak can reduce businesses’ demand charges.

+ Using the same strategy, utilities can use storage to get the best price for their energy.

+ Storage can provide backup power in an emergency.

+ It reduces energy costs for the customer.

+ Storage coupled with renewable energy generation means fewer emissions and more jobs.

+ Storage reduces the need for expensive, difficult-to-site transmission lines.

That last one is a real boon. For example, the new transmission required for California to meet its target of 33 percent renewables by 2020 will cost about $12 billion, according to the state’s Public Utilities Commission.

While building new transmission and distribution infrastructure can be a multiyear process, storage can be deployed quickly, Lin pointed out. By charging storage devices at night and discharging them during the day to flatten demand, “the pipe doesn’t need to be as fat,” she said.

California has approved the first tranche of the $12 billion. “For next tranche, we want them to consider storage,” Lin said.

The Federal Energy Regulatory Commission is thinking along the same lines. On May 19, FERC issued a notice of inquiry to promote transmission investment through pricing reform. A key goal is to encourage energy storage as part of the transmission system.

Such efforts are required to overcome barriers to deployment. One of the biggest is that markets and regulators currently recognize just three types of businesses on the grid: generation, transmission, and distribution. Because storage can play any of these three roles, market and regulatory structures must be revised to take advantage of it.

That might happen soon. On June 16, FERC issued a notice of inquiry to consider ways in which it would set regulations to allow storage developers to get paid, perhaps by creating a separate asset class for storage.

FERC Chairman Jon Wellinghoff has said the agency is interested in allowing payment for the multiple services that storage provides. “FERC is directly attempting to deal with the classification problem,” said Lin. “Storage fits into every silo but doesn’t have a home. No one can figure out how to pay people for storage: distribution, transmission, or load leveling.” In the future, storage might be able to capture multiple payments for different services, she added.

Also on May 19, FERC issued a notice of proposed rulemaking that would require all qualifying generating and nongenerating resources to be paid for regulation services. That means storage technology would qualify as well as, say, gas-fired power plants. The rule also says better quality frequency regulation should earn higher payments. Storage can provide frequency regulation nearly instantaneously, whereas a gas plant takes five minutes to ramp up or down. So storage provides a more valuable service it should therefore earn more, said Wellinghoff.

In 2010, two investment tax credit bills for storage were introduced in the House (H.R. 4210) and Senate (S. 1091), but the energy bill is currently taking a back seat to budget issues. Still, Energy Department investments into storage technologies are ramping interest from venture capitalists.

Some energy wholesalers have also introduced policies to promote storage. The New York Independent System Operator has defined short-term energy storage devices like flywheels and batteries as frequency regulators, allowing them to participate in regulated markets. Independent system operators in Texas, California, and the Midwest have been creating policy, procedures, pricing, and other mechanisms to support storage services.

But among states, California is perhaps the leader in storage, said Lin. The state passed energy storage procurement targets (AB 2514) last year, the first to do so.

Other California policies support storage more indirectly, she pointed out, including the Global Warming Solutions Act of 2006 (AB 32), the renewable portfolio standard, and incentive programs for self-generation, smart grid systems, and solar systems. The state is currently considering whether incentives for self-generation should apply to storage as well.

The key players understand the advantages of storage, Lin said. “But the pace of the beast, our whole energy regulatory system, is like the Titanic. It takes awhile to turn the ship. It’s now headed in the right direction, but it’s slow.”

Wednesday, July 13, 2011

From a cornfield to clean energy's future

TEPHENTOWN -- In what less than two years ago was a cornfield, a vision of a clean energy future is now up and running, where modern versions of the ancient concept of the flywheel both store and release electrical power from and to the grid.

The 20-megawatt plant, where 20 3,000-pound flywheels spin in buried concrete silos, is a way of temporarily storing electricity when the grid has excess, so power can be reintroduced when needed. Such technology could someday help integrate more power from wind and solar systems into the electrical grid.

Each 7-foot-tall flywheel, which can spin up to 16,000 times a minute, has a motor that spins it when the grid has excess power, a process called "absorbing" power. When demand increases and the grid needs power, the flywheels can be switched to turn an electrical generator -- a process known as "ejecting" power -- to feed power into nearby transmission lines for New York State Electric and Gas.

On Tuesday, officials gathered at the Beacon Power plant on Grange Hall Road to kick off the $50 million project, which has been in full operation since early June. The Tyngsboro, Mass.-based company built the plant in less than two years and started partial operation in early January.

The computer-controlled flywheels react to signals every six seconds from the New York State Independent System Operator, which controls the grid, to absorb or eject power. Up till now, such adjustments were solely done by turning fossil-fuel fired power plants on and off.

The Beacon plant covers about 10 percent of such adjustments, which will prevent release of up to 12,000 tons of the greenhouse gas carbon dioxide each year. That's equal to saving 20,000 barrels of oil, or taking about 2,000 cars off the road.

Flywheel plants also will help the grid take on more power from wind and solar sources, which are intermittent and variable, said Steven Whitley, ISO president and CEO. "We are going to need more electrical storage and fast response like Beacon," he said. "Energy storage is critical to our future."

The idea has drawn interest from an Irish wind power developer, Dublin-based Gaelectric Group, said company CEO Brendan McGrath. The company, which develops wind projects in Ireland and Montana, uses compressed air to store energy from wind farms, but sees flywheels as a better alternative.

"We see this as an enabling technology to allow wind energy to remain on the electrical grid," McGrath said.

Suspended in magnetic chambers, where air has been removed to eliminate friction, the flywheels can spin down for several days before stopping, said Gene Hunt, Beacon communications director. The New York State Energy Research and Development Authority, which provided a $2 million grant, sees the project as "innovation at its finest," said President and CEO Frank Murray.

Stephentown Supervisor Larry Eckhardt said the town welcomed the project, which is only several hundred yards from town offices. "There was some contention initially, about whether it would make a lot of noise," he said. "But it does not. We are proud to be part of this."

Also, the U.S. Department of Energy used federal stimulus money to support the project with a $43 million loan guarantee.



http://www.timesunion.com/business/article/From-a-cornfield-to-clean-energy-s-future-1463583.php