Tuesday, July 29, 2008

Tidal Power in France


Coming on the heels of the inauguration of the world’s first commercial scale tidal power turbine, Electricite de France (EDF) has announced that it plans to build a pilot tidal turbine system. The plan calls for 3 to 6 turbines to be built with capacities between 4 and 6 MW by 2011.

The location of the site (off Paimpol in Brittany) was chosen due to the extremely strong currents in the area.

While the recently installed SeaGen tidal power system in Ireland was certainly revolutionary, the French plan is as well. France alone has 80% of the potential in Europe for generating electricity from tidal currents—enough to theoretically create 10 million MWh per year.

This is not France’s first tidal power endeavor; The Rance tidal power plant in Brittany was the world’s first electrical generating system powered by tidal energy. The plant, constructed in 1966, outputs about 68 MW of power per year. However, the Rance plant has had severe environmental consequences due to its placement in a fragile estuary.

Fortunately, the new plan will not have such issues—unlike the polluting barrage system used in older tidal plants, the EDF turbines are free-floating.

And the EDF plan has big implications—if all goes well with the pilot project, France hopes to make tidal power an integral industry in the country.

Thursday, July 24, 2008

Electric Car Innovation in Palestine

By Nick Chambers
Published on July 11th, 2008

The Christian Science Monitor (CSM) has reported on two business partners in Gaza who have converted a 1994 Peugeot 205 into an electric car capable of going 110 miles on a single charge using 34 standard lead-acid car batteries.

After more than a year of being blockaded by the Isreali government, Gazans find themselves facing out-of-sight prices for fuel.

Instead of letting that get the better of them, civil engineers Waseem Khazendar and Fayaz Anan claim to have developed an electric motor that is different than other electric motors and allows for improved efficiency.

The converted Peugeot has 15 horsepower and can travel at a top speed of 60 mph. To most Americans this may seem underpowered, but on the 25 mile long and 7 mile wide Gaza strip this amount of power and speed is more than satisfactory — and in reality, it’s probably more than satisfactory for most Americans too.

The business pair say that they already have a few thousand orders to convert gas cars into electric cars, but due to the blockade they only have enough supplies to convert 30-40 more vehicles.

The conversion purportedly costs a mere $2,500 dollars to accomplish. As reported by the CSM, US experts are baffled as to how the conversion could be done for so little money and that using even the cheapest parts available in the US it would cost 3 times as much to do the conversion here.

Kahzendar and Anan are in the process of trying to patent their invention and hope to work together with Israelis to create a multimillion dollar business.

A quote in the CSM from an Israeli businessman after considering the possibility of working with the Gazans sums it up nicely: “I believe that business creates peace, and any peace project is good for everybody.”

Monday, July 14, 2008

Global Warming: Does it Matter?

By Moe Fakih

If you have lived in Tucson Arizona since the 1960s, you have been witnessing that record low temperatures happen much less than they were from 1910 to 1960. The City of Tucson's population is also growing and with an increasing number of people comes a proliferation of concrete and steal. As more buildings and roads are built a heat island develops. Asphalt and concrete absorb heat at different rates depending on how dark the item. Typically the darker the concrete the more heat it absorbs. Lighter surfaces will reflect heat or absorb less heat than darker objects. So as Cities expand, so does their heat absorbing, paved areas; therefor since most major cities are growing, it is believed that heat islands will also increase. Perhaps this contributes to Earth's average mean temperature increases.

The snow is melting on Mt. Kilimanjaro, Kenya. This is a fact. Another fact is that the rain forest at the base of the mountain is being shredded, thus less moisture is whispped up the mountain, less moist air becomes cooled, and less snow is replenishing white caps. Could the fact that the destruction of the local ecosystem have contributed to glaciers dissapearing on Kilimanjaro and not Al Gore's Inconvenient Truth?

Are we witnessing Global Warming or are there other explanations where areas of the Earth is getting hotter or cooler like in Punta Arenas (at the tip of South America), where they have a GISTEMP station record posted on the wall which shows a long-term cooling trend? The middle of Antarctica is also cooling and large glacier sections are getting thicker.

Those are some arguments against Global Warming.

Is global warming a real threat or are there other factors that may explain why the mean surface temperature of the Earth is getting hotter?

Honestly, who cares?

As we watch pundits, politicians, and arm chair politicos debate over whether global warming is a fear tactic to change behavior or a legitimate scientific concern, we should rise above the muck and consider the other reasons why we should design cities so they do not place added strain on resources and the environment, for example. We should consider what products we procure especially when they could come from a rain forest slaughter mill or which region we need to patrol to protect our petrol-chemical intrests. As my friend comments below, humans need to rethink how their behavior affects the environment.

It's not only about Global Warming. It's about how we perceive ourselves in relation to the Country and to the World. Is our job to take care of the bordered fencing on our plot of land? Is our only concern that Conner, Sally, and Alex make it to soccer and cheer practice on time while mom looks for a second job to pay down last year's Holiday expenses? Or should our concerns expand beyond the mind numbing noise, endless chatter and bleeding mass media headlines that help keep us captivated and distracted?

I'm picturing an Ostrich with its head in the sand right now where its wallet, its way of life, its values and its substance is being compromised. It has been sold that having a head in the sand is American, it's good for the economy, and will help fight terror.

It's so much more than Global Warming.

Rethink U.S. goals
by Omar Masry

It seems like every day, I can open up the Register to a healthy debate over the ramifications of global warming and whether global warming even exists or if it's even the fault of humans. As a city planner, I sometimes wonder if it even matters anymore. The climate is changing in ways we can't simply reverse, no matter our intention, and whether it's due to humans doesn't undo the present. What matters more to me, especially as a veteran of the Iraq war, is how dependent we are on unstable areas for the energy that powers so much of our economy.

It's time to ask: Where is our space race? Where is our generation's challenge? Where is our paradigm shift to rethink American?" Heck, even crotchety oilmen like T. Boone Pickens are saying it's time for change. Surely, that change has to be something more than the next iPhone.

Omar's comment is published in the Orange County Register:
http://www.ocregister.com/articles/doctrine-oil-congress-2091254-fairness-newspapers

Renewable Energy Jobs Growing Worldwide: Study

By Jonathan Bardelline

Renewable energy accounts for the employment, directly or indirectly, of 2.3 million people worldwide, with the largest gains made where governments support renewables, according to a Worldwatch Institute study.

"It depends very, very strongly on government policy and investment private companies take," said Michael Renner, Worldwatch researcher and author of the "Jobs in Renewable Energy Expanding" report. "Even in the years up to now, we have clearly seen countries that give consistent, strong support, for example in Europe, in Germany and Spain."

Using available data, the study estimates there are 1 million biomass and biofuel jobs, 624,000 solar thermal jobs, 300,000 wind jobs and 170,000 solar photovoltaic jobs. Figures include jobs directly in the renewables sector and jobs indirectly related, such as suppliers that provide equipment components.

The data is incomplete due to the fact that one can't look at traditional economic statistics to see the number of renewables jobs, Renner said.

Using what's available, the Worldwatch study shows Germany has 259,000 renewables jobs (a figures estimated to grow to 500,000 by 2020), Spain has 89,000 direct and 99,000 indirect jobs, and the United States, due mostly to support from individual states, had 200,000 direct and 246,000 indirect jobs in 2006.

Renner notes that as renewables jobs have expanded, employment in the coal, oil and natural gas industries have shrunk. In the past 20 years, output of coal has grown by one-third while the number of coal jobs was slashed in half.

Long-term outlooks put the number of wind energy jobs by 2030 at 2.1 million and solar jobs by that same year at 6.3 million. More people will be employed not only in manufacturing wind turbines and solar panels, the study says, but in installing, operating and maintaining the equipment, all jobs that will contribute to local employment growth. Kenya, for example, has 10 large solar photovoltaic companies and 1,000-2,000 solar technicians.

Even though governments have supported the growth of renewables, Renner pointed out that at least in one case, government does not need to increase or maintain high subsidies.

"In Germany for example, the level at which alternative energy, solar, wind and so on are being subsidized deceases each year," he said. "The key is it provide the overall framework that allows investors to say, 'This is something that is not going to lose money forever, this really is a good prospect...this can stand on its own feet.'"

Other factors that have helped renewables grow are guaranteeing renewable energy will be available from the grid and setting guaranteed rates for buying renewable energy.

http://www.greenbiz.com/news/2008/07/11/renewable-energy-jobs-growing