Saturday, June 09, 2012

The Promise of Zero Waste


Some of the most encouraging developments in sustainability arise from citizens concerned about the effects of commonplace activities on their community. In this case, a group of women in Kovalam, India, motivated by a public interest research organization, Thanal, took on the challenge of eliminating the problems associated with incinerating toxic waste. As reported by Truthout, a horiculturist, S. Ushakumari, helped establish a zero waste team and worked to develop alternatives to incineration based on rethinking the materials being used in the region. The movement took root in the community and quickly spread. In her words: 
The idea from Kovalam has gone all over the world now, which I think is the most beautiful part of the project. At least six or seven states are now modeling their zero waste programs after the one in Kovalam. Other countries — like the tourism department in the Philippines — are keen on implementing a zero waste program. 
I think zero waste is what Gandhiji taught us. He didn’t coin the words ‘zero waste’, but what he told us about self-reliance, about non-violence, it’s all the principle of zero waste. The basic philosophy, the basic efforts, the basic understanding, is the same.
 The article concludes with a list of resources for anyone who wants to get involved with similar efforts. Small steps—from the bottom up—often surpass top down efforts.

Sunday, April 22, 2012

Solar Flares and Nuclear Safety

Solar flares

Photo by Fernando Reyes Palencia

Power grid failure presents a serious risk to the operation of nuclear reactors, which require electricity to maintain cooling water circulation even when shut down. As demonstrated by the reactor meltdowns at the Fukushima reactor complex, if you lose power lines and suffer backup generators failures at he same time, the loss of cooling capabilities rapidly causes the situation to spiral out of control.

Besides the natural disaster impacts of earthquake and tsunamis, another natural phenomenon—solar flares—poses dangers unlikely to be factored into the accident trees that assess plant operational risks. Coronal Mass Ejections (CMEs), which peak during regular cycles of the sun, can potentially disrupt the energy grid and render nuclear plants unable to maintain coolant circulation far beyond the week that diesel backup generators are required to function. In Flare-up: How the Sun Could Put an End to Nuclear Power, Gar Smith writes:

A 2011 Oak Ridge National Laboratory report warned of a 33 percent likelihood that a solar flare could lead to “long-term power loss” over a nuclear reactor’s life. With 440 nuclear power plants in 30 countries, and 250 research reactors, there are nearly 700 potential Fukushimas waiting to be unleashed.

Faced with a grid collapse, nuclear plants must rely on backup power to cool reactor cores and spent-fuel ponds. But the Nuclear Regulatory Commission requires only eight hours of battery power and enough fuel to run emergency generators for a week. Restoring outside power to Fukushima’s damaged reactors was a daunting task even when Japan had a functioning grid to fall back on. If the Sun sends a geomagnetic tsunami sweeping across Earth, it could become impossible to provide any form of traditional power.

The failure of the Solar Shield Bill (H.R.668), which included provisions that could protect the grid against the threat of geomagnetic storms, illustrates how woefully unprepared we are to deal with the very likely possibilities of large-scale power blackouts. As Gar points out in his article:

The US could protect its grid by spending around $1 billion to “harden” 350 key EHV transformers and stock blast-proof warehouses with replacement parts. Transformers could be protected with ground resistors. Costing about $40,000 each, they could be installed on 5,000 critical transformers for less than $200 million – about one-tenth the cost of a B-2 bomber.

 

Friday, April 13, 2012

A Community Breaks Away from Coal

bike_travel

Dissatisfied with the direction of the utility company supplying their energy, citizens of Boulder, CO took matters into their own hands and passed ballot measures to create their own municipal power utility. As written in Yes Magazine:

The city’s current electricity supplier, Xcel Energy, is a large corporation that sources more than 60 percent of its power from coal. Colorado climate activists tried for years to persuade Xcel to transition from coal to renewables, arguing that the state’s plains, mountains, and 300 days of annual sunshine give it abundant potential for the development of wind and solar power. But they found Xcel’s take-up of renewables was frustratingly slow. Xcel is investing $400 million in its coal-powered plants, and its plans for renewables stops at just 30 percent in 2020, with no further increase until 2028.

If more communities follow this example, we might even become effective tackling global warming while demonstrating the power of genuine democracy in action.

 

Thursday, April 05, 2012

Go fast without gas

Humans have a lot of different ways to get from Point A to Point B on this planet, but only the velomobile lets you travel with the grace and whimsy of a cartoon character. 

As profiled in Grist, the velomobile consists of a reclining bicycle protected by a fiberglass shell that can optionally be assisted by an electric motor. They're fast, fuel free, and worth consideration if you're tired of being a victim of the fossilized proponents of the fossil fuel industry.

Get out there and pedal!

Sunday, February 12, 2012

Protecting Life on the Blue Marble

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Sometimes we need a little perspective to get our priorities straight. As Bill McKibben points out in "The Great Carbon Bubble: Why the Fossil Fuel Industry Fights So Hard," we experienced the greatest weather extremes in recorded history in 2011, 14 weather disasters in the U.S. alone. And yet we have an entire political party in denial that there are any large-scale dynamics at work in the global weather system that potentially threaten our survival.

Why is the fossil fuel working so hard to spread denial about climate change? As in many things in life, follow the money.

Part of it’s simple enough: the giant energy companies are making so much money right now that they can’t stop gorging themselves. ExxonMobil, year after year, pulls in more money than any company in history. Chevron’s not far behind. Everyone in the business is swimming in money.

Still, they could theoretically invest all that cash in new clean technology or research and development for the same. As it happens, though, they’ve got a deeper problem, one that’s become clear only in the last few years. Put briefly: their value is largely based on fossil-fuel reserves that won’t be burned if we ever take global warming seriously.


The billions of dollars in profits earned by Chevron and ExxonMobil will build a lot of mansions for their highly paid executives. But, what's the point of a mansion if you don't have a habitable planet to build it on?

Thursday, November 24, 2011

Almost as smart as termites

706px-Soldiers-Home-Lincoln-Cottage

We know that ground-nesting termites can build mounds where the temperature and humidity remain moderate year round (a concept that has drawn the attention of architects in recent years). But, for whatever reason, humans don't typically pay much attention to natural heating and cooling in their building design and construction—a fact that leads to an enormous amount of energy consumption so that building inhabitants don't suffer from the heat or cold.

You can find exceptions to this tendency to ignore trees, shade, hillsides, and sun exposure when constructing buildings, even back in the 19th century. One good example, highlighted in Julia Whitty's Blue Marble blog (the post is a couple of years old, but as relevant today as when it was written), is Lincoln's cottage, where the President escaped the suffocating climate of Washington D.C. in the summer.

Among the passive techniques that characterize the cottage:

The builders relied on smarts not watts. Some of their techniques included:

Orienting the building so a powerful crossbreeze blows when the front door and rear windows are opened

Installing tall windows with two sections, a top half to expel warm air and a bottom half to introduce it

Attaching shutters to block the sun or let light in when necessary
Decorating with lace curtains to minimize bugs not breezes


Some of the simplest techniques available could make an enormous difference in energy consumption in our homes and cities. It's not too late to learn from the termites and the builders of the 19th century.

Tuesday, September 06, 2011

Inside the Evacuation Zone at Fukushima

inouemask

Former Shooto heavyweight champion Enson Inoue took a bold journey into the evacuation zone at Fukushima and offered some candid revelations on the state of affairs in and around the disabled nuclear plant. Anyone who thinks the situation is firmly under control should look and listen and perhaps reconsider the situation. MMA Fighting also interviewed Inoue, who offered additional details about his journey into the region.



Sunday, August 14, 2011

Irrational Disdain for Electric Vehicles

EV haters

The mainstream media holds sway over much of public opinion and messages repeated over and over seem to become the reigning paradigm, engrained deeply into most everyone's consciousness. As Steve Harvey points out in The EV-haters guide to hating electric cars, the list of fallacies that are promoted in this way is long and continuous. An example Harvey provides is the typical EV-hater calling electric vehicles a sales flop despite one- and two-year waiting lists for most models.

To counter the many misconceptions, Harvey compiled a list of "truthy" facts and introduced it in this way:

Whatever the reason, the media often has an irrational disdain for electric vehicles. And a similar disdain is common among the general population too. The same EV-hating arguments are repeated ad nauseam in the media. After analyzing the key arguments of the EV haters, I have compiled what I believe is the first-ever "EV-Hater's Guide to Hating Electric Cars." If you really hate EVs -- and you know who you are -- then this Top 10 guide is especially for you.


Good information to have on hand the next time you get into an argument with an EV-hater.

Tuesday, June 14, 2011

Reflections of a Nuclear Power Engineer

Nuclear plants

In this article, reposted on CommonDreams.org, a nuclear engineer talks about his disenchantment with nuclear power because of safety issues and offers an insider view of inherent problems. He offers an interesting assessment of the probability and risk associated with nuclear plant operation:

He illustrates this by comparing driving on the Italian highway, the Autostrada, with running a nuclear power station. Driving on the Autostrada has a low risk to the general population. A possibility does exist that you will crash, and perhaps die as a result, but the consequences of the accident to the general society will be next to nil. That’s why countries let almost anyone drive. So a moderately high P times a very low C equals a small risk to society as a whole.

On the other hand, the chance of an earthquake and tsunami of the magnitude that hit Japan are quite remote, especially occurring in tandem, which makes for a tiny P. But the consequences — the C — of them imperiling a nuclear power plant are huge, leading to a much higher risk to society.


Voters in Italy are convinced. They just voted down plans to restart nuclear power in their country.

Monday, May 16, 2011

Solar-powered aircraft spends 12 hours aloft, consumes no fuel

solar-impulse-international-flight

It only flies at 30 mph, but what it lacks in speed it makes up in efficiency. This aircraft from Solar Impulse, designed to demonstrate the potential of renewable energy, stayed aloft for 12 hours 59 minutes without consuming a single drop of avgas. This article by Gizmag notes:

Solar Impulse is an astonishing feat of engineering. It has a wingspan of over 200 feet (61 m) yet it weighs only 1600 kg (3,527 lb) and carries almost 12,000 solar cells which supply all of the energy required to keep it aloft.


The following video shows this amazing aircraft during the final leg of its historic voyage.





Wednesday, May 04, 2011

Three-wheeled ZAP Alias classified as a motorcycle

Federal certification for the ZAP Alias was simplified by the three-wheel design, which means that it only had to meet certification standards for a motorcycle rather than more stringent automobile requirements. ZAP, headquartered in Santa Rosa, CA, recently acquired a majority share in Zhejiang Jonway Automobile Co. Ltd. in China, where the Alias will be manufactured. The first deliveries of the electric vehicle, priced at $38,000, are slated for September 2011.

Saturday, April 09, 2011

Houston embraces renewable energy

Houston serves as an excellent model for moving away from fossil fuels and nuclear power to a genuinely clean, infinitely renewable approach to meeting a major city's energy needs.



Friday, March 04, 2011

Designers find ways to tap wind power almost anywhere

powerflowers

A gizmag post, Power Flowers to domesticate wind turbines, explores the potential of the product of a Dutch design house, Nl Architects, to tap wind power closer to where it is needed.

While most of us will offer strong vocal backing for the construction of wind farms, that can soon change if someone suggests building one nearby. As a result, the tri-blade towers get exiled to the middle of nowhere – or even further away. Instead of having a few high performance giants scattered throughout the land, NL Architects proposes a structure that would bring a few less efficient turbines together and place them closer to the users of the power they generate.


The efficiency of the vertical-axis turbines used in this design is less than tri-bladed turbines, but more can be situated in a given location. The technology looks promising and deserves more investigation.

Friday, February 11, 2011

Smart meters encounter resistance in CA

FlickrUserChristianHaugen_CC

Smarten up, people, urges a post in The TerraPass Footprint. Numerous consumers are balking at the smart meter installations the California utility, PG&E, is rolling out across the state. Privacy and electromagnetic sensitivity are two of the issues being cited by consumers. If a significant proportion of utility customers choose to opt-out, the value of the entire program—which can provide useful minute-by-minute information about electricity usage—can be significantly lessened.

The post's author, Erik Blachford, comments:

For those who aren’t familiar with the smart meters, the basic idea is to replace analog meters read by hand (er, by eye), with digital meters which transmit electricity usage information wirelessly and presumably more accurately back to the utility. This technology enables but does not automatically trigger a variety of new rate-setting possibilities, most notably time-of-day pricing. By the same token, it enables the utility to provide consumers with more detailed information about their energy use; this data can be helpful for consumers hoping to reduce their consumption or even just their bills (though there are other services which don’t involve smart meters which achieve some of the same goals). Finally, smart meters may eventually tie back into the smart grid, allowing utilities to manage power distribution better by optimizing power available from small, distributed energy sources.


The trade-off between individual rights and the greater good of the commons (through a more efficient energy distribution network that can accommodate micropower installations more easily) is a tough one. In this case, the greater good may be on the side of smart metering.




Monday, January 03, 2011

Why buy an electric vehicle? Consumers speak out . . .

tesla-3

With a growing number of electric vehicles (EVs) reaching the market, consumer preferences are being scrutinized in a serious way. A recent Web survey conducted by ZPryme Research and Consulting—as discussed in a Gizmag article—revealed what it might take to lure a future car buyer away from a fossil-fueled macine to an EV.

As might be expected, range and charging time were key concerns:

Within the very to somewhat likely within two to five years group, 33.7 percent said that 400 miles (644 km) would be a sufficient range, while 33.3 percent were willing to settle for 300 miles (483 km). When it came to acceptable charge times, 32.1 percent indicated 4 hours, 18.1 percent indicated 6 hours, and 20.0 percent would wait for 8. If it were possible to pay a premium to charge their cars faster, 87.4 percent said they would opt for it. The ability to charge one’s EV at home is also a big deal, with 93.2 percent describing it as very important.


The technology is getting there, but meeting some of these consumer demands is going to take some work and some of that work involves consumer education.

Saturday, December 11, 2010

A city powered by waste


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Kristianstad, Sweden is setting an example for the rest of the world, as highlighted in this NY Times article, Using Waste, Swedish City Cuts Its Fossil Fuel Use. After a ten-year effort, the city of 80,000 has cut off the use of oil, natural gas, and coal for heating and now relies on waste products from farming and food processing to generate biogas.

hulking 10-year-old plant on the outskirts of Kristianstad uses a biological process to transform the detritus into biogas, a form of methane. That gas is burned to create heat and electricity, or is refined as a fuel for cars.

Once the city fathers got into the habit of harnessing power locally, they saw fuel everywhere: Kristianstad also burns gas emanating from an old landfill and sewage ponds, as well as wood waste from flooring factories and tree prunings.


Though the lock on fossil fuel use in the U.S. appears to be unbreakable, sometimes workable solutions to our energy problems are right in front of our noses.

Tuesday, November 30, 2010

Triac is not Tesla, but it's not meant to be

83608_ssjm1124triac

Tesla may have the celebrity cachet and media spotlight, but the humble, three-wheeled Triac is clearly the more practical choice for a "Green Core" consumer looking for a $25,000, all-electric vehicle with an honest 100-mile range. In a siliconvalley.com article, Mike Ryan, president of the firm based in Salinas, CA that produces the Triac, says that the car is aimed at people who have a more environmentally conscious lifestyle.

Key among the features is a sophisticated system for predicting remaining range before a recharge is needed.

The Triac will include a Vehicle Efficiency Data Assistant -- VEDA -- interface to the battery management system as well as diagnostic and navigational data. VEDA is an electronic learning system that captures a person's driving habits and commute patterns to accurately predict miles left before recharging.

"Range anxiety is something that gives people a lot of concern," Ryan said. "Say I forgot to charge my car. I'm at lunch. I want to run an errand before I go home. Will I make it home?"


Options in the electric car market are getting more expansive. The Triac is an interesting home-grown option that favors practicality over panache—and for many buyers that's a plus.

Thursday, November 25, 2010

Sahara Solar Breeder Project to turn sand to solar cells to electricity

saharasolarbreederproject

An ambitious project sponsored by universities in Janpan and Algeria seeks to accelerate the production of energy from solar cell technology using silica and sunlight from the Sahara Desert. The objective is to first extract silica from the sand to create solar panels and then combine the panels to make solar power plants in the same geographic area. The plants would be used to power additional silica extraction and solar cell manufacturing, building exponentially on the energy potential with a target of providing 50 percent of the world's energy by 2050.

As detailed in a Gizmag.com article, the project is attempting to accomplish a number of things that haven't been done before.

Subscribing to the "give a man a fish and he eats for a day, but teach a man to fish and you feed him for a lifetime" philosophy, another major aim of the project is to train scientists and engineers from developing countries. To that end, the project won’t just bring well-understood technology from developed countries, but will involve people from both developing and developed countries working together on R&D right from the outset.

“Because technology hasn't yet been established for making silicon from desert sand, then using it to make solar cells, our aim is to work together from the basic research stage, so we can discover and nurture talented scientists and engineers in Africa," said Koinuma.


More power to this project and a sincere hope that they meet their objectives.

Wednesday, November 17, 2010

Climate change deniers take over the House


Hopenhagen
Originally uploaded by Bjørn Giesenbauer


Elizabeth Kolbert's Field Notes from a Catastrophe tackled the challenge of global warming as a first-person observer, traveling around the world to witness the changes in places where they are most severe. Now, writing for The New Yorker in Uncomfortable Climate, she takes a hard look at the current crop of deniers entering the US House of Representatives, many of whom consider their primary role as disrupting any hope of political progress on this critically important global problem.

Though four presidents in succession have paid lip service to preventing dangerous climate change, these commitments haven't lead to any significant action given the magnitude of the challenge.

Elizabeth sums up the current situation neatly:

Meanwhile, as John Boehner chortles about the dangers of CO2, the world keeps heating up. According to the National Oceanic and Atmospheric Administration, the first half of 2010 was the warmest January to July on record. And this is just the beginning. Owing to the inertia of the climate system, the warming that we’re experiencing is only a fraction of the temperature increase that’s already guaranteed.

The United States is no longer the world’s largest carbon emitter; that honor belongs to China. But we’re still the largest source of warming in terms of cumulative emissions, and on a per-capita basis Americans produce more CO2 than just about anyone except the Qataris. Without the active support of the United States, there’s no way to make progress on emissions globally. This month, negotiators will meet in Cancún for another round of international climate talks, and it’s a safe bet that, apart from the usual expressions of despair, nothing will come of them. It may seem that we’ll just keep going around and around on climate change forever. Unfortunately, that’s not the case: one day, perhaps not very long from now, the situation will spin out of our control.


The window left for action is closing quickly. If the new members of the House have their way, it will be slammed shut permanently, in blithe ignorance of the consequences.

Sunday, November 07, 2010

Nicaragua adopts aggressive renewable energy targets


La Vieja Managua (Nicaragua)
Originally uploaded by denetsnuff


Nicaragua is setting aggressive targets to replace fossil fuel use with renewable fuels, as discussed in this Renewable Energy Magazine article. Under a plan announced by Emilio Rappaccioli, the Nicaraguan Minister of Energy and Mines, on October 29th, the goal is to increase the use of renewables to 94 percent by 2017 and to be at the 100 percent renewable mark by 2025. Currently, 66 percent of Nicaragua's thermal energy is petroleum based.

If we could get the US to make a similar commitment, we'd be able to make some serious progress toward reversing climate disruption.