Archive for the 'Emergency Power Systems' Category

Solar Balloons - The Sky’s the Limit

Solar Balloons can power remote areas and quickly provide emergency power in disasters. Joseph Cory, of Geotectura.com, and Pini Gurfil, his research partner in the Haifa Technion, Haifa, Israel, are developing the balloons. Helium balloons floating above the trees or tethered to the roofs of buildings, can provide more power in less space and at lower cost than roof mounted or ground mounted systems. They can also be deployed very quickly in an emergency.

Where conventional PV Solar installations are two dimensional, these are three dimensional.

Initial research, using computer models and a prototype, shows that a 10 foot diameter PV Solar balloon provides the energy of a 269 square foot PV Solar surface. The cost of the balloon is targeted at $4000. The cost of a comparable surface mounted system is estimated to $10,000.

I read about this on Pinkus Javits’ SustainabiliTank blog, Gizmundo, and Israel 21C.

Infrastructure and Emergency Shelters

If every elementary school in the country had a Photovoltaic Solar system installed onthe roof, then in a ‘Katirina like event’ each school would be an emergency shelter with power. If terrorists took one out, there’d be another one a short distance away.

Solar Panels work when the sun shines. Period!

The money we are spending on the war in Iraq - currently estimated at $2.4 Trillion - would pay for for 300 gigawatts of PV Solar generating capacity - at full retail, and about 800 gigawatts of offshore wind electric capacity. (Solar is about $8.00 per watt, offshore wind is about $3.00 per watt.)

Which would make this country more secure?

Weaving Batteries into Clothes - A new machine that makes nanostructured fibers could turn soldiers’ uniforms into power supplies.

From “Weaving Batteries into Clothes,” by Kevin Bullis, in TechnologyReview.com:

A novel machine that makes nanostructured fibers could be the key to a new generation of military uniforms that take on active functions such as generating and storing energy.

The fibers can be made of up to three different materials, arranged in regular, nanoscale patterns visible in cross section. The machine, manufactured by Hills, of West Melbourne, FL, is one of only two in the world capable of producing such fibers, says Stephen Fossey, a researcher at the U.S. Army Natick Soldier Research Development and Engineering Center, in Natick, MA. The machine is scheduled to be delivered early next year to the Natick facility, where it will serve as the centerpiece of a program geared to making multifunctional uniforms.

Among the machine’s many potential uses is assembling fibers that act as rechargeable batteries. Angela Belcher, a professor of biological engineering and materials science and engineering at MIT, says that some of the sample structures the device has made could be useful for combining positive and negative battery electrodes and electrolytes into individual threads. Such threads could be woven into uniforms and paired with threads that act as fuel cells or photovoltaics.

The machine was featured last week as part of a workshop on wearable power held at the United States Army Research Laboratory, outside of Washington, DC. The workshop was part of a major push to develop better alternatives to today’s batteries as foot soldiers come to depend more on electronic devices, from night-vision goggles and laser range finders to advanced radios and networked computers. Today, a typical platoon requires almost 900 batteries of up to seven different types for a five-day mission, says Charlene Mello, a member of the macromolecular-science team at the Natick soldier center. Besides being cumbersome to manage and carry, the batteries don’t last very long, which could put soldiers in the position of having to change them in the middle of a fight.

What’s needed are ways to store energy in less space and relieve soldiers of logistical burdens so that they can concentrate on their jobs, says Dave Schimmel, a project manager at the Natick facility who works with experimental technologies that are close to being tested in the field.

Via Danger Room.

Design for the other 90%

Design for the other 90% The show we missed at the Cooper-Hewitt, the museum with the highest ration of cool-to-anonymity in New York City. Perhaps it’s actually a secret, classified facility - an “undisclosed cultural location.” Here’s what Design for the other 90% is about:

Of the world’s total population of 6.5 billion, 5.8 billion people, or 90%, have little or no access to most of the products and services many of us take for granted; in fact, nearly half do not have regular access to food, clean water, or shelter. Design for the Other 90% explores a growing movement among designers to design low-cost solutions for this “other 90%.” Through partnerships both local and global, individuals and organizations are finding unique ways to address the basic challenges of survival and progress faced by the world’s poor and marginalized.

Designers, engineers, students and professors, architects, and social entrepreneurs from all over the globe are devising cost-effective ways to increase access to food and water, energy, education, healthcare, revenue-generating activities, and affordable transportation for those who most need them. And an increasing number of initiatives are providing solutions for underserved populations in developed countries such as the United States.

This movement has its roots in the 1960s and 1970s, when economists and designers looked to find simple, low-cost solutions to combat poverty. More recently, designers are working directly with end users of their products, emphasizing co-creation to respond to their needs. Many of these projects employ market principles for income generation as a way out of poverty. Poor rural farmers become micro-entrepreneurs, while cottage industries emerge in more urban areas. Some designs are patented to control the quality of their important breakthroughs, while others are open source in nature to allow for easier dissemination and adaptation, locally and internationally.

Encompassing a broad set of modern social and economic concerns, these design innovations often support responsible, sustainable economic policy. They help, rather than exploit, poorer economies; minimize environmental impact; increase social inclusion; improve healthcare at all levels; and advance the quality and accessibility of education. These designers’ voices are passionate, and their points of view range widely on how best to address these important issues. Each object on display tells a story, and provides a window through which we can observe this expanding field. Design for the Other 90% demonstrates how design can be a dynamic force in saving and transforming lives, at home and around the world.

They’ve got a promising blog - which is particularly cool - we take as a sign that the Cooper-Hewitt means to keep this dialogue going notwithstanding the closing of the physical exhibit.

We’ve got the crack Popular Logistics “fixers” trying to persuade the press office at the Cooper-Hewitt that just because we’re a blog, we’re still part of the “press” for purpooses of showing our readers some images along with further posts about Design for the other 90%. Stay tuned for more.

Inhabitat: “Solar-powered ‘Energy Bucket’ collects sunshine”

Inhabitat reports on a clever improvement on the basic - and  basically underpowered - solar-powered walkway light:

But because of its size, a group of these could easily be used as traffic-calming signals during power failures, evacuation route markers, or in other ways.

Inhabitat post here.  Inhabitat credits these to designer Stefano Merlo - but I can’t find them on his website (but lots of other beautiful stuff).

So we don’t know if these are available for purchase - or if there’s an open-source recipe available. We’ll put the Popular Logistics R&D team on it.

Inhabitat: portable light via solar panels and LEDS

From Inhabitat:

Designed by Kennedy & Violich Architecture (KVA MATx), the beauty of the Portable Light Project is its merging of high-tech industry and local craft-based economies, not to mention the fact that it delivers usable light to demographics and regions that are either off-the-grid, mobile, or in locations with little daily sunlight. “Portable Light is based upon the principle that global needs for technology development are inevitably interconnected. Knowledge, techniques, market solutions and data produced by the project benefit the “third” world and the “first” world where the need to imagine, design and develop energy efficient alternatives to the centralized and increasingly costly electrical grid is becoming ever more important,” says KVA.

The materials themselves and attention to the design process prove that Portable Light is not just functional, but thoughtfully constructed with sustainability and humanity in mind. It combines high-brightness LEDs from pedestrian walk signals, water-resistant tactile switches from dishwashers, and rechargeable batteries from the cell-phone industry, all sourced from consumer appliances and standard technologies. Continue reading ‘Inhabitat: portable light via solar panels and LEDS’

Portable solar panels developed for Australian Troops

The Daily Mail reports that the Australian Ministry of Defence has developed a 14-ounce solar panel:

Soldiers will have them moulded on to their backpacks to help power the array of electronic equipment now used in combat.

The introduction of solar panels is being studied by the Ministry of Defence, which is keen to cut the use of traditional batteries. The new technology would be ‘greener’ than disposable batteries and much cheaper in the long run.

It could also help save troops’ lives by eliminating the danger of equipment failing because of lack of power.

And it could save them from the risk of injury posed by traditional batteries, which can explode if exposed to fire or extreme desert temperatures.

Weighing just 14oz, the panels have been developed for the Australian army, whose troops and special forces regularly fight alongside elite British SAS units in Iraq and Afghanistan.

The panels are made from a secret compound and can produce hours of low-level energy to power radios, night-vision goggles, communications equipment and sensors to detect enemy positions.

They even work in cloudy conditions because they harness solar radiation rather than direct sunlight. The Australian military, which spent £1million on the project, says the battlefield has become more “power hungry”, so finding an alternative battery source was vital.

Lieutenant Colonel John Baird, of the Australian army, said: “This is fighting in the information age, where every soldier is connected via sophisticated communications equipment and uses sensors to provide information on an enemy’s position.

“But it uses a hell of a lot of power, and the disposable batteries we are using now are far from ideal because when they run out the soldiers have to return to base and take the used batteries with them.

“If we can use the sun’s radiation to recharge equipment then that is a clear advantage.”

Dr Gavin Tulloch, director of the solar-panel project, said: “The lithium used in traditional batteries can be dangerous, particularly in conflict situations, and the residual electrolytes are quite polluting.

Clearly within the ambit of current technological possibility. And this became, say, NATO-standard equipment, we might see interesting and rapid changes in price.

Daily Mail article here.

“They were really controlling the whole area, turning the lights on and off at will. They would shut down one area of the city, turn it dark, attack us from there, and then switch off another one and come at us from that direction.” - Cpl. Daniel Jennings

James Glanz had yet another excellent piece in Thursday’s Times about the Iraqi electrical grid. Glanz - by himself and with co-authors - has been keeping an eye on the Iraqi electrcal power situation. We assume that if he’s doing any reporting or writing afer the sun sets, the Times has gotten him a generator. a Or at least a lot of flashlight batteries.

If I understand this correctly, this report started as coverage of a press

“briefing … intended, in part, to highlight successes in the American-financed reconstruction program here.

But it took an unexpected turn when [Karim] Wahid [the Iraqi electricity minister], a highly respected technocrat and longtime ministry official, began taking questions from Arab and Western journalists.

Because of the lack of functioning dispatch centers, Mr. Wahid said, ministry officials have been trying to control the flow of electricity from huge power plants in the south, north and west by calling local officials there and ordering them to physically flip switches.

But the officials refuse to follow those orders when the armed groups threaten their lives, he said, and the often isolated stations are abandoned at night and easily manipulated by whatever group controls the area.

This kind of manipulation can cause the entire system to collapse and bring nationwide blackouts, sometimes seriously damaging the generating plants that the United States has paid millions of dollars to repair.

Such a collapse took place just last week, the State Department reported in a recent assessment, which said the provinces’ failure to share electricity resulted in a “massive loss of power” on Aug. 14 at 5 p.m.

It added that “all Baghdad generation and 60 percent of national generation was temporarily lost.” By midnight, half the lost power had been restored, the report said.

With summer temperatures routinely exceeding 110 degrees, and demand soaring for air-conditioners and refrigerators, those blackouts deeply undermine an Iraqi government whose popular support is already weak.

In some cases, Mr. Wahid and other Iraqi officials say, insurgents cut power to the capital as part of their effort to topple the government.

But the officials said it was clear that in other cases, local militias, gangs and even some provincial military and civilian officials held on to the power simply to help their own areas.

With the manual switching system in place, there is little that the central government can do about it, Mr. Wahid said.

“We are working in this primitive way for controlling and distributing electricity,” he said.

Mr. Wahid said the country’s power plants were not designed to supply electricity to specific cities or provinces. “We have a national grid,” he said.

He cited Mosul and Baquba, in the north, and Basra, in the south, as being among the cities refusing to route electricity elsewhere. “This greatly influenced the distribution of power throughout Iraq,” Mr. Wahid complained.

At times the hoarding of power provides cities around power plants with 24 hours of uninterrupted electricity, a luxury that is unheard of in Baghdad, where residents say they generally get two to six hours of power a day.

Mr. Wahid said Baghdad was suffering mainly because the provinces were holding onto the electricity, but he said shortages of fuel and insurgents’ strikes on gas and oil pipelines also contributed to the anemic output in the capital.

Although a refusal by provincial governments to provide their full quotas to Baghdad could easily be seen as greedy when electricity is in such short supply, many citizens near the power plants regard the new reality as only fair; under Saddam Hussein, the capital enjoyed nearly 24 hours a day of power at the expense of the provinces that are now flush with electricity.

Keeping electricity for the provinces, said Mohammed al-Abbasi, a journalist in Hilla, in the south, “is a reaction against the capital, Baghdad, as power was provided to it without any cuts during the dictator’s reign.”

- snip -
The precision with which militias control electricity in the provinces became apparent in Basra on May 25 when Moktada al-Sadr’s Mahdi Army carried out a sustained attack against a small British-Iraqi base in the city center, and turned that control to tactical military advantage.

“The lights in the city were going on and off all over,” said Cpl. Daniel Jennings, 26, one of the British defenders who fought off the attack.

“They were really controlling the whole area, turning the lights on and off at will. They would shut down one area of the city, turn it dark, attack us from there, and then switch off another one and come at us from that direction.

“What they did was very well planned.”

Glanz and Stephen Carroll leave the punchline for last:

The electricity briefing began with Brig. Gen. Michael J. Walsh, commanding general of the Gulf Region Division of the Army Corps of Engineers, saying the United States had finished more than 80 percent of the projects it planned for rehabilitating the Iraqi grid.

There’s always a risk with trying to stay on message - “80 percent completion” - when everyone in the room knows the assertion is essentially false.

This seems an appropriate moment to remind ourselves of the Naval War College’s “Solar Eagle” proposal for Iraq:

The proposal was, essentially, to put a PV panel on every Iraqi roof. A copy of the report is available from The Project on Government Secrecy at the Federation of American Scientists. . The Navy “Solar Eagle” proposal is for a decentralized system. Decentralization and redundant connections are what make networks robust and resistant to attack - and reduce the need for transmission capacity, making the grid at least marginally more efficient. But - even one severed the connections between every house and the grid, each house would still be able to produce some power locally. Even without storage - probably enough to keep food from spoiling and run some fans during the hottest part of the day.

Restoring the power grid as much as possible would seem to be a critical step towards building civil society in Iraq; because of the violence, diesel fuel delivered to troops in the field - to power generators - has been estimated to cost over $300 per gallon. [See details in Noah Schachtman’s excellent coverage  of defense procurement issues, such as Iraq’s Long, Winding Supply Lines, in the DangerRoom  blog at wired.com, reporting that field commanders in Iraq had “urgently” requested solar and wind generators to protect military installations, and limit the amount of time their troops would be exposed to attack while escorting fuel convoys.

It’s hard to avoid the inference that a large-scale solar project in Iraq would be likely to have the following effects:

  1. limit the effects of violent political factions, making solar power look like one of our more successful strategies in Iraq;
  2. To the extent that we went to war in Ira for oil - a successful solar program wouldn’t be good news for proponents of the war, as it would seem to undercut the immense value of Iraq’s oil fields;
  3. After an initial spike in prices, economies of scale might substantially reduce  prices for photovoltaic (and wind-powered) systems worldwide.

In other words, unpalatable to our political leadership, despite the “urgent” requests of our military commanders in the field.

But perhaps it’s worth asking ourselves - why nor - if we’re already talking about “exit strategies” - think of implementing Solar Eagle right now.

background resources

Several chapters of Paul Baran’s work at the RAND corporation, “On Distributed Communications,” which I understand to be the earliest articulation of the notion that redundant networks could be self-repairing and therefore highly resistant to attack, are available on the RAND website as Acrobat documents. Link to a list of available publications; and here’s a short bio from RAND:

An electrical engineer by training, Paul Baran worked for Hughes Aircraft Company’s systems group before joining RAND in 1959. While working at RAND on a scheme for U.S. telecommunications infrastructure to survive a “first strike,” Baran conceived of the Internet and digital packet switching, the Internet’s underlying data communications technology. His concepts are still employed today; just the terms are different. His seminal work first appeared in a series of RAND studies published between 1960 and 1962 and then finally in the tome “On Distributed Communications,” published in 1964.

Since the early 1970s as an entrepreneur and private investor, Baran has founded or co-founded several high-tech telecommunications firms. He is currently chairman and co-founder of Com21, Inc., a Silicon Valley-based manufacturer of cable TV modems for high-speed, high-bandwidth Internet access. He is also a co-founder of the Institute for the Future. Baran holds several patents and has received numerous professional honors including an honorary doctorate from his alma mater Drexel University (BS ‘49). He has a master’s degree in engineering from UCLA.

An excellent article - really a “must-read” for people who care about these issues - and to make sense of what Irwin Redlener has called “the immense mass of interlocking details” is “Expecting the Unexpected: The Need for a Networked Terrorism and Disaster Response Strategy,” by W. David Stephenson and Eric Bonabeau, in the on-line journal Homeland Security Affairs.

Skybuilt Power receives patent for its “MPS” (mobile power station)

We first learned about these from Haninah Levine’s piece in Defense Tech, which had reported that they were under consideration for field use in Iraq.

skybuilt-power-mps-schematic.jpg

From the firm’s press release:

This is a revolutionary, plug-and play, rapidly deployable, mobile, hybrid solar and wind power system. It can provide power in hours and run for years with very low maintenance and minimal operating costs. It is ideal for disaster relief, Homeland Security, commercial, military, and intelligence applications in any climate worldwide.

Continue reading ‘Skybuilt Power receives patent for its “MPS” (mobile power station)’