Category Archives: Wind

Energy reliability: let’s do the study for Georgia

Which energy source is really more reliable? Nuclear, coal, or wind, water, and sun?

As Plant Vogtle and others have just demonstrated, nuclear power isn’t as reliable as we might have thought. Mark Z. Jacobson says we can generate reliable power from wind, water, and sunlight alone. Will that work in Georgia?

Elsevier’s policy of charging for peer-reviewed articles from scientific journals is controversial, and some people find $19.95 prohibitive to access Mark Z. Jacobson and Mark A. Delucchi’s Providing all global energy with wind, water, and solar power, Part I: Technologies, energy resources, quantities and areas of infrastructure, and materials from Energy Policy Volume 39, Issue 3, March 2011, Pages 1154-1169. Fortunately, the same authors wrote an earlier version for Scientific American, 26 October 2009, A Plan to Power 100 Percent of the Planet with Renewables: Wind, water and solar technologies can provide 100 percent of the world’s energy, eliminating all fossil fuels. Here’s how

A new infrastructure must provide energy on demand at least as reliably as the existing infrastructure. WWS technologies generally suffer less downtime than traditional sources. The average U.S. coal plant is offline 12.5 percent of the year for scheduled and unscheduled maintenance. Modern wind turbines have a down time of less than 2 percent on land and less than 5 percent at sea. Photovoltaic systems are also at less than 2 percent. Moreover, when an individual wind, solar or wave device is down, only a small fraction of production is affected; when a coal, nuclear or natural gas plant goes offline, a large chunk of generation is lost.
Continue reading →

Conversation for jobs —Cristobal Serran-Pagan @ VCC 7 April 2011

Dr. Serran-Pagan suggests we have a conversation among all types of people and do the math. Let’s put the money where it will produce jobs. Solar, wind, why haven’t we been doing it? Real clean renewable sources of energy. He brings up the water the biomass plant would use.
Water is precious. Air is precious. Oil, coal, is not precious. Biomass is not precious. We have plenty of good clean, renewable sources of energy. Let’s do that…. and get rid of old models, and let’s try to do what is right for community, for our economy, and for public interest.

Here’s the video:


Conversation for jobs —Cristobal Serran-Pagan @ VCC 7 April 2011
Regular monthly meeting of the Valdosta City Council (VCC),
Valdosta, Lowndes County, Georgia, 7 April 2011,
Videos by Gretchen Quarterman for LAKE, the Lowndes Area Knowledge Exchange.

-jsq

Nuclear (Stewart Brand) vs. renewable energy (Mark Z. Jacobson) at TED

Stewart Brand of Whole Earth Catalog fame is a long-time environmentalist who in recent years decided nuclear was necessary. (He also decided no-till was necessary, which was enough to convince me he’s gone barmy.) Here at TED he debates Mark Z. Jacobson, whose new study says we can power the world with wind, water, and sun. I think Jacobson should reconsider including building more hydroelectric dams, but his study does demonstrate that we don’t need nuclear or biomass. But watch it and see what you think:

Here is my critique of Brand’s arguments: Continue reading →

Solar and wind: All that is lacking is the political will

Mike Childs wrote in the Guardian on 27 March 2011, Our green energy potential is huge, but gets little support: The crisis at Fukushima calls into question our nuclear power policy
Nuclear power is a gamble we don’t need to take. Studies show that the UK can meet its energy needs and tackle climate change without resorting to nuclear power or burning fossil fuels – all that is lacking is the political will.
Studies like this one for Scotland and this one for the whole world.

And the U.K. is way north of Georgia. Georgia gets a lot more sunlight and has plenty of wind off the coast. All that is lacking here, too, is the political will.

If Atlanta won’t lead, why not Valdosta and Lowndes County?

-jsq

Scotland planning more offshore wind power than needed for all its homes

Aaron Colter wrote 23 March 2011: 5 GW Of Offshore Scottish Wind Power By 2020?
The Scottish Government has released a plan for offshore wind that highlights six areas for potential development. The original plan had selected ten regions for offshore renewable energy, however, four were ultimately abandoned due to predicted negative environmental and economic impact.

The six sites still in the running have an estimated energy potential of nearly five gigawatts by 2020, or enough to power 3 million homes. Richard Lochhead, Rural Affairs and Environment Secretary, said that Scotland’s commitment to offshore wind production could generate over $11 billion for the country’s economy and support up to 28,000 jobs over the next ten years.

For comparison, Scotland has about 370,000 households. According to the General Record Office for Scotland, Estimates of Households and Dwellings in Scotland, 2009:
In mid-2009, there were 2.34 million households in Scotland
That’s right, they’re talking eight 1.28 times as much power as all of Scotland’s homes could use. I would guess this means they plan to export some of that power, perhaps to England.

It seems renewable energy planning has spread beyond the Highlands to the rest of Scotland.

-jsq

Update 6:45 PM 3 Apr 2011: Fixed total household number; thanks to Malcom Smith for catching this typo.

How to power the world with Wind, Water, and Sun

…a new study just published in the journal Energy Policy states that the world can provide for all of its energy needs, including electric power, transportation, heating/cooling, etc using only wind, water, and solar (WWS) energy by the year 2030.
By water the study authors, Mark Z. Jacobson (pictured) Mark A. Delucch, mostly mean hydroelectric power, which would involve building more dams, with all their environmental problems. Still, it’s an interesting study demonstrating that true renewable energy could power the world: no coal, no oil, no nuclear.

-jsq

Current costs of major power sources

According to the U.S. Department of Energy, here are the current costs of coal, natural gas, nuclear, wind (onshore and offshore), solar (electrical and hot water), geothermal, biomass, and hydroelectric:

Here’s a four page explanation of that table.

Coal is not the cheapest: natural gas is. Onshore wind actually costs about the same as coal, and less than nuclear. Offshore wind is currently about 2.5 times more expensive.

Solar photovoltaic (PV) currently costs a bit more than twice as much as coal, and already less than offshore wind.

The table does not take into account the environmental costs of the various power sources, or obviously coal would fare far worse, and biomass would not be rated anywhere near as good as wind.

Remember, the cost of solar is falling rapidly, so solar will rapidly become more cost-effective compared to other energy sources.

-jsq

Wind farms in earthquakes and tsunami?

They keep working.

Kelly Rigg in Huffpo writes Battle-proof Wind Farms Survive Japan’s Trial by Fire:

Colleagues and I have been directly corresponding with Yoshinori Ueda leader of the International Committee of the Japan Wind Power Association & Japan Wind Energy Association, and according to Ueda there has been no wind facility damage reported by any association members, from either the earthquake or the tsunami. Even the Kamisu semi-offshore wind farm, located about 300km from the epicenter of the quake, survived. Its anti-earthquake “battle proof design” came through with flying colors.

Mr. Ueda confirms that most Japanese wind turbines are fully operational. Indeed, he says that electric companies have asked wind farm owners to step up operations as much as possible in order to make up for shortages in the eastern part of the country:

The only wind farms not operational are stopped because of failure of the grid to feed electricity into, says Mr. Ueda:
Eurus Energy Japan says that 174.9MW with eight wind farms (64% of their total capacity with 11 wind farms in eastern part of Japan) are in operation now. The residual three wind farms (Kamaishi 42.9MW, Takinekoshirai 46MW, Satomi 10.02MW) are stopped due to the grid failure caused by the earthquake and Tsunami.
So they wind farms built like that could most likely survive a hurricane in the Georgia Bight.

-jsq

Offshore wind energy cheaper than nuclear –EU climate chief

Inland south Georgia doesn’t have much wind, probably not enough to generate significant electricity, but wind farms off the Georgia coast could. Now we hear fromm Zachary Shahan in Clean Technica that Offshore Wind Energy Cheaper than Nuclear Energy, EU Climate Chief Says:
EU climate chief Connie Hedegaard has added that offshore wind energy is cheaper than nuclear.

…

“Some people tend to believe that nuclear is very, very cheap, but offshore wind is cheaper than nuclear,”

He’s picking up the story from the Guardian, in which Fiona Harvey and Terry Macalister wrote 17 March 2011: Continue reading →

What’s the Industrial Authority’s Plan?

Appended is my LTE in the VDT today. I’ve added links. -jsq

What is the Industrial Authority’s plan to bring in real clean jobs?

MAGE SOLAR is hiring for the first of 350 jobs in its photovoltaic (PV) solar manufacturing plant in Dublin, Georgia, with half the population of Valdosta, in Laurens County, with half the population of Lowndes County. They’ve parlayed their position between the Atlanta airport and the Savannah seaport for many new clean jobs.

Suniva of Norcross’s second PV plant with its 500 jobs went to Michigan. Saginaw Valley calls itself Solar Valley and collaborates with governments, academia, and industry, winning thousands of clean jobs in wind and solar manufacturing and generating plants.

The Saginaw News remarked (7 Nov 2010): Continue reading →