Category Archives: energy blogs

The Sun Blew Up – Twice to be exact

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This just means that global warming will be worse this winter and by next year there will no longer be deniers. But this just means it is too late.

 

http://www.space.com/14811-huge-solar-flares-erupt-sun.html

Sun Fires Off 2 Huge Solar Flares in One-Two Punch

by Tariq Malik, SPACE.com Managing Editor
Date: 07 March 2012 Time: 07:03 AM ET

UPDATE: See SPACE.com’s latest news on this massive solar flare event here: Biggest Solar Storm in Years Is Bombarding Earth Now

The sun unleashed a cosmic double whammy Tuesday (March 6), erupting with two major flares to cap a busy day of powerful solar storms. One of the flares is the most powerful solar eruption of the year, so far.

Both of the huge flares ranked as X-class storms, the strongest type of solar flares the sun can have. They followed several weaker, but still powerful, sun storms on Tuesday and came just days after

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Go there and read. More tomorrow.

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Denmark Goes Solar Fast – Unlike the duffuses in the United States

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I know that Dufus is at the same time a village name in Ireland as well as a clan name. So excuse me if I use the America slang term for the stupidest person around. But the United States’ economy and its economic policy have been led by angry stupid old white guys for way too long. Coal is dead. Natural gas is an illusion and nuclear is a joke. I say, “let’s get on with it”.

http://um.dk/en/news/newsdisplaypage/?newsid=25147b44-3dce-4647-8788-ad9243c22df2

Denmark reaches 2020-goal for solar energy before time

12.09.2012  14:24

Already this year, Denmark will reach the 2020 Government goal of 200 megawatt solar cell capacity.

Huge interest for solar energy solutions has made the amount of solar cells multiply much faster than expected. This is made possible by favourable framework conditions. In fact the solar cell capacity will be a hundred times bigger this year compared with 2010. Currently 36 MW capacity is being mounted every month.

Danish energy sector players, Dansk Energi, Energinet.dk and DONG Energy, estimate that this development will result in 1000 MW by 2020 and 3400 MW by 2030.

 

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Wind Works – A great accumulator

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I forgot to give this website credit for yesterday’s post. That is a small journalistic boo boo and I will clear that up now.

http://www.wind-works.org/

What Can Be Found on This Site

This site contains information about my books, an archive of my articles, and descriptions of my workshops on wind energy and Advanced Renewable Tariffs. This site also contains an extensive collection of articles and technical reports on electricity feed laws or renewable energy tariffs. I’ve been an outspoken proponent of feed laws since the late 1990s when I urged the American Wind Energy Association to call for them nationally.

Photography

My photos are stocked by Still Pictures in London. For more on my photography and for photo tours of several wind farms as well as a sampling of wind energy icons, see the photos section of this site.

 

Small Turbine Testing

Beginning in 1997 I’ve measured the performance and noise emissions of small wind turbines at the Wulf Test Field in the Tehachapi Pass. For more information on this work, visit Wulf Test Field.

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Wind Power In Germany – Killing time until the presidential election is over

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Yes it is true I am distracted by world events. But to be fair to wind power they are tearing it up in Germany.

http://energy.aol.com/2012/10/08/the-green-republic-germany-s-wind-energy-boom/?a_dgi=aolshare_linkedin

The Green Republic? Germany’s Wind Energy Boom

Published: October 8, 2012

The German wind industry sits at the heart of a European energy market preparing for a disruptive transformation intended to promote integration and allow the rich wind resource of the North to fuel continent-wide growth, without the risks of nuclear power and reliance on foreign energy producers.

It is a comprehensive, ambitious vision that in Germany alone the environment minister Peter Altmaier has compared in scale to the country’s painful post-Communist reunification.

The EU is preparing to release its latest communication on an integrated energy market ahead of a goal of operational integration it has set for 2014. The energy market remains one of the rare nation-state functions that has hardly been impacted by European integration at all, despite the EU’s origins in a post-WWII agreement over the continent’s coal sector.

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Solar Islands – This is a great concept

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They say nothing about storms or ship traffic so I am not sure how this would work in the real world.

http://reneweconomy.com.au/2012/floating-solar-islands-designed-to-power-crowded-cities-15979

Floating solar islands designed to power crowded cities

By on 29 October 2012

Not to be confused with what could be the biggest storm ever to hit the United States, SUNdy – a large-scale offshore solar farm concept by global consultancy and certification firm DNV – was unveiled at Singapore International Energy Week on Thursday last week.

The core feature of the floating solar concept is a hexagonal array of 4,200 solar panels – roughly the size of a football pitch – which floats on the sea’s surface. The ‘solar island’ would be capable of generating 2MW of power, with multiple islands joined together to create an offshore solar field of 50MW or more, producing enough electricity for around 30,000 people.

“The island has been optimised for solar capability and cabling efficiency,” says Kevin Smith, Global Segment Director for DNV KEMA’s Renewable Energy Services. “The solar arrays are divided into electrical zones feeding electricity produced into two main switches collecting the power for voltage step up at a central transformer (2MVA 480/34.5kV). From the offshore solar farm’s central island, 30kV electrical transmission lines connect, tying other islands in series to form a close loop and continue to the electrical sub-station onshore for grid connection.”

Sanjay Kuttan, managing director of the DNV Clean Technology Centre in Singapore says SUNdy’s thin-film 560W solar panels are flexible and lighter most silicon-based modules, allowing them to undulate with the ocean’s surface. “The key to creating an ocean-based structure of this size is the use of a tension-only design. Rather like a spider’s web, this dynamic, compliant structure yields to the waves, yet is capable of withstanding considerable external loads acting upon it.”

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Voyager Leaves The Solar System – What an amazing and historic time

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I am 57 years old and it may all be down hill from here. Seriously. In humankind’s 100,000 year history we just threw a spear out of here. In terms of what we were promised – you know warp drive, aliens and foreign civilizations it is kind of drab; but in terms of goal posts, it is a huge leap. Some might even say a quantum leap. All I can say is WOW.

http://blog.chron.com/sciguy/2012/10/more-evidence-that-voyager-has-exited-the-solar-system/

More evidence that Voyager has exited the solar system

Friday, October 5, 2012

A science blog with Eric Berger

Something very, very interesting is happening with Voyager 1, the human probe that’s the very farthest from Earth.

New data from the spacecraft, which I will discuss below, indicate Voyager 1 may have exited the solar system for good. If true, this would mark a truly historic moment for the human race — sending a spacecraft beyond the edge of our home solar system.

At last check, NASA scientists said they were not yet ready to officially declare that Voyager 1 had officially exited the solar system by crossing the heliopause.

To cross this boundary scientists say they would need to observe three things:

1. An increase in high-energy cosmic rays originating from outside our solar system

2. A drop in charged particles emanating from the sun.

3. A change in the direction of the magnetic field.

As I reported in June,  in regard to the first point, scientists have observed a sustained increase in galactic cosmic rays during recent months.

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Energy Deathprint – One of those pesky externalities you never hear about

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This article is both disturbing and self explanatory.

http://www.forbes.com/sites/jamesconca/2012/06/10/energys-deathprint-a-price-always-paid/

How Deadly Is Your Kilowatt? We Rank The Killer Energy Sources

 

James Conca, Contributor

Everyone’s heard of the carbon footprint of different energy sources, the largest footprint belonging to coal because every kWhr of energy produced emits about 900 grams of CO2. Wind and nuclear have the smallest carbon footprint with only 15 g emitted per kWhr, and that mainly from concrete production, construction, and mining of steel and uranium. Biomass is supposedly carbon neutral as it sucks CO2 out of the atmosphere before it liberates it again later, although production losses are significant depending upon the biomass.  Carbon emissions and physical footprints are known as externalities and are those vague someone-has-to-pay-eventually kind of thing it’s hard to put a value on. Proposed carbon footprint taxes are in the range of $15 to $40/ton of  CO2 emitted, but assigning a physical footprint cost depends on the region, ecosystem sensitivities and importance. A hundred-acre wetlands to be flooded by a new dam is worth more to the planet than a barren hundred-acre strip under a solar array in the Mojave (P. Bickel and R. Friedrich, 2005).

But an energy’s deathprint, as it is called, is rarely discussed. The deathprint is the number of people killed by one kind of energy or another per kWhr produced and, like the carbon footprint, coal is the worst and wind and nuclear are the best. According to the World Health Organization, the Centers for Disease Control, the National Academy of Science and many health studies over the last decade (NAS 2010), the adverse impacts on health become a significant effect for fossil fuel and biofuel/biomass sources (see especially Brian Wang for an excellent synopsis). In fact, the WHO has called biomass burning in developing countries a major global health issue (WHO int). The table below lists the mortality rate of each energy source as deaths per trillion kWhrs produced. The numbers are a combination of actual direct deaths and epidemiological estimates, and are rounded to two significant figures.

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Go there and read. The numbers are disgusting. More tomorrow.

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If the whole world used these – Global warming would go away

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It is my firm belief that most of the global warming occurring is the direct result of world wide aircraft activity: military, commercial and personal. While it is true that the carbon uptake systems world wide have been compromised or broken by our general production of carbon, it is the relentless daily flights through the atmosphere using combustion engines that are doing the bulk of the atmospheric damage.

http://www.bbc.com/future/story/20120921-lighter-than-air-craft-rises

HyperDrive | 24 September 2012

Lighter-than-air craft rise again

Jon Stewart

f you like the idea of cruising on a ship in laid-back luxury, but prefer the speed and convenience of air travel, there may soon be a solution. Drawing their inspiration from the airships of yesteryear, a new generation of airship-like vehicles could soon be making their way across our skies.

In a hangar outside Tustin in California, engineers are preparing one of the most radical designs for testing.  The Aeroscraft, as it is known, is the brainchild of Igor Pasternak and has been made possible by advances in materials and computer control systems.

“We are resurrecting [the airship] with new composite fabric structures, that are stronger, lighter, more versatile” says Fred Edworthy, of Aeros, the company building the lighter-than-air vehicle.

The airship in the hangar is being built to test various key components of a design that could one day contain a hotel, casino or spa. However, the company believes one of its biggest markets could be transporting freight from hard-to-reach locations or, for example, carrying wind turbine blades. Currently blades are as large as they can be to be transported on a truck.

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Las Vegas has made huge strides in conservation efforts

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Yes I know there are many things that are wrong about Las Vegas. People shouldn’t even be there in the first place. The rape of the river that no longer reaches the sea. The rape of the pristine desert and the death of many Native Americans. I lived there for a year and there is also the cheesy nature of the culture. But when they do something right, you got to give them credit.

http://www.homeenergy.org/show/article/id/1811/viewFull/

 

Nevada Energy Star Partners Demonstrate Peak Performance (Web Only)

September 01, 2012

Las Vegas may appear balmy and inviting with its sparkling pools and swaying palm trees, but those who live in Neon City know the truth: It’s too cold in the winter and too hot in the summer.

Unfortunately, hundreds of thousands of homes that were built during an amazing 50 years of rapid growth in the Southwest do not incorporate modern advances in energy performance to accommodate the wild swings of desert climate. As temperatures climb to 110°F in the summer, many homes leak large amounts of cooled air through gaps in ducts, roofs, windows, and doors. And when the frigid north wind drops the temperature below freezing in the winter, heated air escapes, leaving living rooms and bedrooms uncomfortably cold and drafty. While Las Vegans know their climate, they may not realize that they are paying to heat and cool the great outdoors.

The dramatic temperature shifts in the high-desert climate make Las Vegas an ideal place for homeowners who are looking to make their homes more comfortable and to save substantially on their energy bills. Funded in part by DOE’s Building America program, the Building America Retrofit Alliance is working with the Nevada ENERGY STAR Partners–Green Alliance (NESP–Green Alliance), and with Better Building Performance, a Las Vegas company, to upgrade two typical homes top to bottom. Their goal has been to show homeowners and remodelers how easy and effective energy performance upgrades can be.

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I normally would not think of Colorado as a solar state

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But I imagine the whole “front range” of the rocky mountains is. Usually you think of deserts but really sunshine falls everywhere and the higher you go the more intensity it generates. So we close the week with this:

http://www.myenergysolution.com/energy-savings-blog/

Colorado Solar Power

Despite Colorado’s fame as a skiing destination, Denver actually ranks 30th of 174 major U.S. cities in terms of sunshine potential, not far behind Honolulu and Miami. In fact, Colorado has the third highest installed solar PV generation capacity of any U.S. state (source: IREC US Solar Market Trends 2009). As a result of innovative policies and greater awareness of environmental issues, Colorado was an early adopter of solar energy systems. As of the end of 2009, the state had 59 megawatts of installed solar PV capacity, third highest among U.S. states despite the fact that the state ranks 22nd in terms of population. In addition, Colorado installed 53.6 megawatts of solar power in 2010, ranking Colorado fourth in the nation, which was double the output for 2009 (23.4 megawatts). Home to natural gas, oil and some of our nation’s best solar rebates, Colorado plays an important role in the United States’ energy industry. Colorado was the first state to create a Renewable Portfolio Standard (RPS), through a 2004 ballot initiative. Originally, the RPS mandated that all utilities with more than 40,000 customers provide at least 10% of their electricity from a renewable energy source. Through additional improvements, it is now mandated that by 2020 investor-owned utilities must provide 30% and cooperatives and municipal utilities with over 40,000 must provide 10% of their retail load from renewable energy sources. Investor-owned utilities also have a distributed generation requirement, which is good news for solar owners. By 2020, 3% of the retail load must come from customer solar electric systems, rather than huge solar farms. This means that investor-owned utilities will continue to offer fantastic solar incentives to consumers to increase the number of residential and commercial solar systems

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Go there and read. More next week.

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