Category Archives: energy blogs

Spanish Solar Facilities Are Cool – They claim the rain in Spain

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falls mainly on the plain. But really it is the sun casting photons from afar that has the biggest impact.

http://www.solarserver.com/solar-magazine/solar-news/current/abengoa-solar-inaugurates-second-generation-high-temperature-solar-power-tower.html

Abengoa Solar inaugurates second-generation high-temperature solar power tower

Abengoa Solar’s (Seville, Spain) first high-temperature power tower, dubbed “Eureka,” was unveiled on June 19th, 2009 by Martín Soler Márquez, Director of Innovation, Science and Enterprise for the Andalusian Regional Government, the company reports in a press release. According to the press release, this power tower is intended to test a new type of receiver on an experimental basis and it is expected that the receiver can achieve the higher temperatures needed for higher-efficiency thermodynamic power cycles. The aim of this new technology is to increase plant performance, thereby reducing generating costs as well as the area of the solar field, Abengoa reports.

The new experimental plant occupies a 16,000-squarefoot portion of the Solúcar Platform and uses 35 heliostats and a 164-foot tower which houses the experimental superheating receiver. The capacity of the experimental plant which features a thermal energy storage system is estimated to be about 2 megawatts (MW).

Solúcar Platform solar thermal and PV installation complex to offset 185,000 tons of CO2 emissions per year.

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Go there and see the pretty picture. More next week.

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Large Solar Facilities In China – As the green clean wars heat up

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I have included a picture here because it is a small one and the plant will not be operational until next year.

http://www.renewablesinternational.net/esolars-chinese-partner-makes-a-successful-bid-for-solar-thermal-project-in-fuxin-city/150/510/30493/

eSolar’s Chinese partner makes a successful bid for solar thermal project in Fuxin City

Just three months ago, California CSP manufacturer eSolar licesed its power tower technology to China’s Pengai Electric – the partnership has born fruit. The partnership has announced its second CSP project in northern China.

 - eSolar's Sierra SunTower in Lancaster, CA has been delivering power to the grid since mid-2009
eSolar’s Sierra SunTower in Lancaster, CA has been delivering power to the grid since mid-2009
Source: eSolar

Shandong Penglai Electric Power Equipment Manufacturing (SPEPEMC), the Chinese partner company of Pasadena power tower developer eSolar, signed a cooperation agreement in mid-March with the City of Fuxin, Liaoning Province to build the Fuxin Solar Thermal Power Project. Pengai Electric will build the plant in three phases. When complete the solar thermal power station will have a generation capacity of 300 MW. The Fuxin project is the second for Penglai Electric since the privately-owned power company signed a licensing agreement with California company eSolar last January. Under the terms of the agreement, the Chinese company comitted to building 2 GW of solar thermal power stations in China by 2021 using eSolar’s power-tower technology. The first plant slated for construction is a 92 MW CSP plant to be located at the 66-square-mile Yulin Energy Park in the Mongolian desert.

In eSolar’s power towers, flat mirrors focused on two recievers at the top of a tower heat water directly to produce steam and drive the plant’s turbine. The Chinese plants will combine the eSolar technology with biomass-fired power plants to produce electricity in poor weather conditions and after sundown.

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Go there and see. More tomorrow.

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I Keep Trying To Post Solar Facilities – But life gets in the way

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I Keep trying to put posts about large solar facilities up here in one meditation, but then I see something really interesting and I want to post it before I forget it. In this case it is related however.

http://switchboard.nrdc.org/blogs/ngreene/first_us_tidal_power_project_l.html

Nathanael Greene’s Blog

First U.S. Tidal Power Project Readies for Launch in Maine

Posted July 24, 2012 in Solving Global Warming

The ocean is a tremendous bank of energy. Covering more than two-thirds of our planet, the amount of energy embodied in the ocean’s tides, currents, and waves, not to mention temperature and salinity gradients, could power the world—if we were able to commercialize the technology to harness its renewable power.

While technologies harnessing energy from tides and currents have been domestically discussed for decades, no project has ever reached commercial development, and been connected to the grid in the United States. In Eastport, Maine, however, that changed today that will change around mid-August with the launch of the Ocean Renewable Power Company (ORPC) TidGen Cobscook Bay tidal energy project. Harnessing the power of the massive tidal shifts in Cobscook Bay, an inlet connected to the much larger Bay of Fundy, the project is the first in the U.S. to receive a FERC license, negotiate a power purchase agreement, and install and operate a power-producing tidal generator.

As clean energy advocates, we are excited to highlight new, innovative projects that inject clean power and jobs into communities, deploy American ingenuity and know-how and utilize smart clean energy policies. The DOE invested $10 million in the project as part of its larger water power program that aims to better understand the environmental impacts that come with harnessing ocean energy, as well as refine, and make more cost-effective, the technologies that do so.

In addition to harnessing local sources of energy, the project apparently:

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Go there and read. Back to solar tomorrow I hope.

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China Hops On Australian Solar Market – Sad to say but it could have been America

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This is what the corporate suits missed about government support for solar and wind. They create things that other people want and good paying jobs as well.

http://www.hydrogenfuelnews.com/australia-poised-to-take-the-lead-in-solar-energy-market/854766/

Australia poised to take the lead in solar energy market

– July 16, 2012

Yingli Green Energy notes the solar energy potential of the country

Over the past decade, Australia has shown modest support for alternative energy. In recent years, this support has been growing at a rapid pace, with the country now showing major interest in solar energy. Because of Australia’s exposure to solar radiation, it is one of the most attractive locations in terms of a solar energy market. Yingli Green Energy, a Chinese solar panel manufacturer, believes that the potential for solar energy in Australia is so high that it may become the leader of the photovoltaic mass market by the end of the year.

Australia could benefit from Chinese manufactured solar technologies

Solar energy has been growing in strength all over the world. Demand for solar energy systems is growing amongst consumers who wish to see savings of their energy bills as well as help the environment. As demand for solar energy systems rises, so too does the supply of these energy systems. China has played a large role in the growing availability of solar energy systems. The country has thrown its manufacturing might behind the production of solar panels and other technologies, inundating the mass market with products that are driving down the price of solar energy systems.

Company expects solar energy market prospects to be extraordinary

Yingli Green Energy is one of the three largest solar panel manufacturers in China, as well as the rest of the world. Though the company has a small presence in Australia, it claims that the country could become a world leader in terms of solar energy in the coming years. The company expects Australia to see major progress in the solar energy market by the end of the year, with its prospects becoming “quite extraordinary” in 2014 and 2015.

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Go there and read. More tomorrow.

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Is Tidal Energy Coming – According to this the answer is yes

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Tapping The Source: The Power Of The Oceans

Posted by Big Gav in , , , , , ,

Last year I came across the story of Dutch company Kema and their energy island idea – basically a variant on the usual pumped hydro energy storage concept where water is pumped out of a space below sea level then allowed to flow back in, generating power as it does. The “island” uses wind power to pump water out of the enclosed area. An obvious extension to this idea would be to harness ocean energy as well – letting wave and/or tidal power supplement the output of the wind turbines. An attraction of this concept is that it potentially allows a large amount of new energy storage to be brought online – and this storage would be along the world’s coastlines, where most of the population lives.


Another form of energy island has been in the news recently, this one a substantially more ambitious proposal which envisions artificial islands to collect wind, wave, ocean current and solar power in the tropics, along with a more unusual energy source – harnessing the difference in water temperatures between the warm surface and the cold depths using a technique called OTEC (Ocean Thermal Energy Conversion). These islands are being proposed by architects Dominic Michaelis and his son Alex Michaelin as a response to Richard Branson’s Virgin Earth Challenge, which offers $25 million in prizes for innovative solutions for combating global warming.

While the practicality of these particular proposals has yet to be put to the test, the various forms of ocean power are probably the most overlooked of the big 6 renewable energy sources (along with solar, wind, geothermal, biomass and hydro).

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Smart Grid Efforts Breed Parasites – Blame monopoly capitalism

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If the utility companies were smart they would have been in the forefront of this effort, but years of being monopolies have sucked their brains out of their ears. So now we are going to have parasites festering all over the new grid. This can not be good. That is obviously not how this author sees it.

http://gigaom.com/cleantech/a-startup-emerges-to-help-time-shift-energy-use/

A startup emerges to help time shift energy use

By Jul. 5, 2012, 12:00am PT

Dialing down your home’s energy consumption during times of peak power grid use in exchange for compensation is an emerging service. Picture it’s a hot day and you agree not to jack up your air conditioner in exchange for a discount on your utility bill. Startups like new-comer Smart Grid Billing are developing applications to help manage this process, and later this month Smart Grid Billing plans to launch a field trial of its service at a golf course.

Founded in 2009, Smart Grid Billing is testing its combination of energy-monitoring wireless-connected plugs and software that collect and crunch energy consumption data. The service stores the data in a central server and can determine which appliance or equipment has the potential to reduce or cut its electricity use in real time.

This block of unused power can be sold to a local grid operator. Smart Grid Billing shares the revenue from that sale to its customers, and the plugs are programmed to restore the electricity flow back to the equipment at a later time.

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Go there and read. More tomorrow.

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India Must Somehow Get Power For 4 Hundred Million People – Is the answer solar

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They have more people without electricity then there are in the United States. MAN! So solar might seem inadequate but I do not think so. I believe if China keeps pumping out the panels.

Written by Varun Mittal | 02 July 2012

India’s per capita consumption of electricity per is around 481 units or one-fifth of world average of 2596 units. Compare it to 900 units per month consumption of electricity in US. Such a low electricity use in India adds to the challenge of development because in order for India to be energy secure, the country needs to first match its supply of power with the demand. In addition, it must add the capacity year on year with respect to the gross domestic product (GDP) growth rate, power being a primary ingredient in economic development.

Gap between supply and demand of power

LOADS DEMAND AVAILABILITY DEFICIT
BASE LOAD 861,591 (MU) 788,355 MU 8.5%
PEAK LOAD 122 GW 110 GW 9.8%

Source: CEA report, 2011

Solar power in the renewable energy mix

India needs to sustain an 8% to 10% economic growth rate, over the next 25 years, and it needs, at the very least, to increase its primary energy supply. Fortunately there is an abundance of solar energy across India. About 5000 trillion kWh per year energy is incident over India’s land area with most parts receiving 4-7 kWh per square mile per day. The annual average global solar radiation on horizontal surfaces, incident over India is about 5.5 kWh per square metre per day or 1650 Kwh per square metre per year.

Fortunately there is an abundance of solar energy across India.

Based on such promising solar energy potential across India, the government of India rolled out

Based on such promising solar energy potential across India, the government of India rolled out the central policy “Jawaharlal Nehru National Solar Mission: JNNSM” on 23 November, 2009 to add 20,000MW grid-connected solar power capacity, which is 27.62% in grid-connected renewable power capacity by 2022.  However, along with the central policy, 3 states (Rajasthan, Gujarat, and Karnataka) have come up with their state solar policies that are independent or concurrent to central policy while other states are planning their solar policies such that the total contribution of solar will be much higher in the renewable power mix. Therefore, the percentage of renewable power in the cumulative grid-connected power capacity will be increased.

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Go there and read. More tomorrow

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Longterm Storage Is Not An Issue – It never has been for renewable energy

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This is actually part of a lecture that I give to college students called the Myths of Global Warming. The point of it is that Global Warming is indeed happening and at an accelerated pace. The point is that there have been myths erected like barricades that defend the use of fossil fuels. Here is a high tech version.

http://theenergycollective.com/node/75535

Posted by: Joseph Romm

Lauren Simenauer is a former intern with Science Progress, and Sean Pool is Assistant Editor of Science Progress. This piece was originally published at Science Progress.

Super Hot Salt: The Newest Energy Storage Innovation?

Policymakers and energy industry experts often talk about clean energy as though it isn’t reliable. In fact, while an MIT study recently found the existing grid would probably be up to the challenge of absorbing clean energy, intermittency does present a real challenge that renewables must address to get to high levels of penetration.

But BrightSource Energy, a major player in the market for concentrating solar power, or CSP, recently announced the installation of new thermal energy storage technology at three of its planned power plants in California. This thermal energy storage technology will go a long way toward solving the intermittency problem for concentrating solar power. BrightSource’s announcement demonstrates that we can in fact get reliable baseload power from the sun [or, even better, load-following power].

The thermal energy storage systems, built using SolarPLUS technology, work by using hundreds of parabolic mirrors to concentrate the rays of the sun on a tank of molten salts, heating the salts to several hundred degrees above the boiling point of water. The superheated salt is then stored in a giant insulated container until the power plant needs to add additional output, at which point it can use the heat stored in the molten salt to boil water to create steam to drive its turbines.

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Healthcare Upheld – But that is not what I am going to post about

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It has been the shipping industry’s wet dream for a hundred years, Wind Power. They dream back to the days when the only costs for shipping was the ship and port fees. I do not know if this is the system that will catch on but it is pretty cool nonetheless.

http://cleantechnica.com/2011/02/28/wind-powered-cargo-ships-make-a-comeback/

Wind-Powered Cargo Ships Make a Comeback

February 28, 2011 By

Sailing ships once carried much of the world’s cargo across the seas, until canvas sheets were replaced by low-grade “bunker” oil. Now it appears that wind power is about to make a comeback, in the form of rigid “sails” that double as solar panels. The patent-pending technology, called the Aquarius Solar and Wind Marine Power System, is being developed by a company called Eco Marine Power. The dream of a high tech, sustainable energy cargo ship has been percolating for a number of years now, but it hasn’t caught on in a big way, so let’s see if this new system is The One.

Wind Power for Cargo Ships

At first blush, wind power for today’s ultra-huge cargo ships looks like a nice idea, but just not possible. The scale alone makes it seem impractical. However, that hasn’t stopped anyone from trying. In recent years a German company has come up with a parachute-like design for cargo ships that includes sails the size of football fields, and a British company has developed a more traditionally styled, rigging-free sail system for smaller cargo ships.

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Go there and read the rest. More tomorrow.

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The World Is Ending – Well right after it doesn’t

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Well really the guys point is that there will have to be fast and furious changes from a growth model economy to a static or sustainable economy for humans to survive in the civilized manner that we have gotten accustomed to. Still the world has suffered severe trauma before and humans are still here. Plus I believe the subtext of his piece is that the rest of the planet will never notice that mankind ran out of oil or even very much that the climate was destabilized by climate change. It is a really really long article so I will give you a little bit here.

http://www.thesolutionsjournal.com/node/1124

Can We Avoid the Perfect Storm?
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It is quite possible that by the year 2100 human life will have become extinct or will be confined to a few residential areas that have escaped the devastating effects of nuclear holocaust or global warming.
—Brian Barry1

Evolution equipped us to deal with threats from dependably loathsome enemies and fearsome creatures, but not with the opaque and cumulative long-term consequences of our own technological and demographic success. As cartoonist Walt Kelly once put it, “We’ve met the enemy, and he is us.”

Deforestation, agriculture, and the combustion of fossil fuels have committed the world to a substantial and possibly rapid warming that will last for hundreds or thousands of years. Rising temperatures, whether gradual or sudden, will progressively destabilize the global climate system, causing massive droughts, more frequent storms, rising sea level, loss of many species, and shifting ecologies, but in ways that are difficult to predict with precision in a nonlinear system. These changes will likely result in scarcities of food, energy, and resources, undermining political, social, and economic stability and amplifying the effects of terrorism and conflicts between and within nations, failed states, and regions.

Action to head off the worst of what could occur is difficult because of the complexity of nonlinear systems, with large delays between cause and effect, and because of the political and economic power of fossil fuel industries to prevent corrective action that would jeopardize their profitability. Political leadership has been absent in large part because no government is presently organized to deal with the permanent emergency of climate destabilization. The effects of procrastination will fall with increasing weight on coming generations, making our role as the primary cause of worsening climate destabilization the largest moral lapse in history.

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Go there and read. More tomorrow.

 

 

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