Category Archives: solar power

Looking For Solar In Australia – Give AGL a call

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Call now 1300 076 188 (Mon – Fri 8am – 6pm and Sat 9am – 4pm EST).

Having said that please do all the things with AGL that you would do with any contractor. Check with local business groups like the Chamber of Commerce and the Better Business Bureau. Ask for references and you must comparison shop. Having said that here is a guest post from AGL on the past and present of Solar Power.

AGL solar energy

The ever-growing improvements in solar power technology

 

Solar power technology has come a long way since its first arrival in the 1950s, when solar panels were over three times the size they are now, yet converted just 4.5% of solar energy into electricity. Sixty years ago solar panels needed to be far larger to be as powerful and were unthinkably expensive. For example, a 230 Watt solar panel in 1953 measured 213 inches by 130 inches and cost a whopping $1785 per Watt. Today, a solar panel with an identical wattage measures 64 inches by 39 inches and costs just $1.30 per Watt. As research and development in solar power technology increases, efficiency, cost and size can only further improve in the future.

In 1953 the first modern solar cell, using a silicone semiconductor to convert light into electricity, was unveiled in the USA. It was revolutionary and gave rise to the belief that we will eventually be able to harness the sun’s incredible energy. Fast-forward nearly sixty years and the technology has vastly improved and is now at the stage at which solar power production and consumption is growing year on year, at half the cost of just five years ago. Why has it taken so long? Largely because the need for it wasn’t there. Fossil fuels were cheap and plentiful and so the impetus (and therefore also the finances) didn’t exist for large-scale research and development into taking solar mainstream. Funding depended on which government was in power in different countries and thus solar power R&D was very stop-start.

Triggered by the impending energy crisis, the past 20 years saw huge improvements in technology and manufacturing methods, driving costs down and expanding the market, and each time the market for solar energy increases, costs are further reduced. Solar energy still accounts for a small percentage of the world’s energy consumption (currently just 1%) but that is tipped to change imminently. Recent advances in technology are leading the way for huge growth in the solar energy market. In 2008, spherical solar cells were developed in Japan, a technology which is up to five times cheaper, uses far less material, consumes half the energy to reproduce and has flexible applications. Residential solar panels are proving increasingly popular, with companies such as AGL Solar Energy installing them on rooftops in thousands of homes in Australia.  

In 15 years, commercial buildings will be built to make the most of solar power – indeed, the technology is already almost there to do so. Buildings will be constructed from glass coated with a network of tiny Organic Photovoltaic Cells which are so fine that light isn’t obstructed. This way, entire buildings can become energy producers. Similar technology is also being utilised to develop paint-on solar cells so that you can paint the outside of your house with solar energy-producing cells. The next 20 years will see the cost of solar come down and technologies improve. Look out for new technologies such as super-fine solar films made from cheaper CIGS (copper, indium, gallium, selenide) rather than silicone, and glass or plastic plates coated with dye which will help to focus photons onto solar panels. One thing’s for sure – the solar energy revolution has only just begun. The future is bright!

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Go there and read. More tomorrow.

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Solar in the Middleast – When the oil producers get it and the price drops the change will come

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But will the change come in time. I still got my doubts about that.

http://customwire.ap.org/dynamic/stories/C/CLIMATE_TALKS_SOLAR_DREAMS?SITE=NDBIS&SECTION=HOME&TEMPLATE=DEFAULT&CTIME=2012-12-06-02-01-22

Middle East beginning to embrace solar energy

By MICHAEL CASEY
AP Environment Writer

ABU DHABI, United Arab Emirates (AP) — Covering nearly 300 football fields in a remote patch of desert, the Shams 1 solar project carries off plenty of symbolic significance for the United Arab Emirates.

It will be the first, large-scale solar project in the oil-rich country when it is completed at the end of the year, and the largest of its kind in the Middle East. At full capacity, the 100-megawatt, concentrated solar project will be able to power 20,000 homes. For those behind the project, it’s the surest sign yet that solar is coming to the region in a big way.

“We truly believe solar will be a major contributor to meeting our own requirements,” said Sultan Ahmed al-Jaber, the UAE’s Special Envoy for Energy and Climate Change and the chief executive officer of government-funded Masdar, which is the majority investor in the project.

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Go there and read. More tomorrow.

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Germans Wonder About America – Will they ever get serious

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Unfortunately I believe the answer is NO. Americans will never get serious about renewable energy until it is so far behind the rest of the world that it becomes embarrassed. By then it will be too late for us to take advantage of creating our own industries.

http://www.truthdig.com/report/item/how_germany_is_getting_to_100_percent_renewable_energy_20121115/

How Germany Is Getting to 100 Percent Renewable Energy

Posted on Nov 15, 2012

By Thomas Hedges, Center for Study of Responsive Law

There is no debate on climate change in Germany. The temperature for the past 10 months has been 3 degrees above average and we’re again on course for the warmest year on record. There’s no dispute among Germans as to whether this change is man-made, or that we contribute to it and need to stop accelerating the process.

Since 2000, Germany has converted 25 percent of its power grid to renewable energy sources such as solar, wind and biomass. The architects of the clean energy movement Energiewende, which translates to “energy transformation,” estimate that from 80 percent to 100 percent of Germany’s electricity will come from renewable sources by 2050.

Germans are baffled that the United States has not taken the same path. Not only is the U.S. the wealthiest nation in the world, but it’s also credited with jump-starting Germany’s green movement 40 years ago.

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Go there and read. More tomorrow.

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The Elections Were Exciting – But Big Coal lost

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So after the Election we took three days off and went to Giant City State Park and drove over to see the Garden of the Gods. Giant City was disappointing:

https://www.google.com/search?q=garden+of+the+gods&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a

With its breathtaking natural beauty and unlimited opportunities for outdoor recreation, a trip to Giant City State Park near Carbondale is sure to delight visitors of all ages. From camping and horseback riding to fishing and rappelling, it’s an outdoor lover’s paradise. Visitors will marvel at the many wilderness trails. Especially popular is a hike on Giant City Nature Trail, home of the “Giant City Streets” huge bluffs of sandstone formed 12,000 years ago .

Nestled in the Shawnee National Forest, just minutes south of Carbondale, the Union / Jackson county park was named for the unique impressions made by its massive sandstone structures. Eons of geological faulting and folding have molded a landscape like none other, which is now clothed in lush garments of fern, moss, large flowering mints, hundreds of species of wild flowers and 75-plus varieties of towering trees. The natural splendor of Giant City has made it a renowned retreat that attracts more than 1.2 million visitors annually.

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But Garden of the Gods was amazing:

http://www.shawneeforest.com/Hiking/GardenoftheGods.aspx

More than 320 million years ago, the wind and rain patiently started to chisel away at large deposits of sedimentary rock located in what is now, Shawnee National Forest . Over the years, the elements have sculpted some of the most stunning and extraordinary rock formations known to man. This garden of sandstone sculptures and vast untouched wilderness was fittingly named Garden of the Gods.

The park contains a variety of plant and animal life, adding to the scenic beauty of the Shawnee Forest. Garden of the Gods covers more than 3,300 acres of forest throughout the Southeastern Illinois counties of Saline, Pope and Hardin. There are also plenty of trails for backpacking and horseback riding, allowing nature lovers a welcome tour of what the lively environment has to offer.

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Go there and be envious. More on Tuesday.

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The Future Of Solar Is Uncertain – At least at the utility level

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Not much to say about this. Conference summaries are always difficult to interpret. You miss all the personal conversations, updates, and sense of the future. Still it is a snapshot.

http://www.greentechmedia.com/articles/read/Utility-Scale-PV-Developers-Confront-Future-of-Solar-Project-Business

Utility-Scale PV Developers Confront Future of Solar Project Business

They want the “doable renewables.”

Herman K. Trabish: November 1, 2012

Building utility-scale PV solar projects is getting tougher. Greentech Media’s U.S. Solar Market Insight conference concluded with a discussion between experienced developers about the challenges and opportunities.

Moderator and GTM Research Senior Analyst Shyam Mehta asked them to first review the last year.

“In summer of last year, the IOUs issued RFPs, the first in over two years,” 8minutenergy CEO Martin Hermann recalled. “More than 70,000 megawatts of applications were submitted. They shortlisted about 2,500 megawatts.”

The ISO queue has dropped from 80,000 megawatts to 50,000 megawatts and utilities are “looking very diligently to see if there are any show stoppers” before signing contracts. In this “tough competition for PPAs,” Hermann said, developers are “monetizing or cancelling their portfolios.”

In three years, explained SunEdison (NYSE:WFR) General Manager Attila Toth, the U.S. solar market will be 50 percent distributed generation and 50 percent utility scale projects. But about 85 percent of the 3.5 gigawatts to 3.8 gigawatts of utility projects “is already spoken for, in the queues and has company’s names written on it. There is a very limited opportunity in the utility segment.”

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Go there and read. More next week.

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New Solar Plan Should Speed Things UP – If you care about this planet

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This article represents public policy that could make a difference.

http://www.denverpost.com/energy/ci_21759106/plan-streamline-solar-development-west-okd

Plan to streamline solar development in West OK’d

By JASON DEAREN Associated Press

SAN FRANCISCO—Federal officials on Friday approved a plan that sets aside 445 square miles of public land for the development of large-scale solar power plants, cementing a new government approach to renewable energy development in the West after years of delays and false starts.

At a news conference in Las Vegas, Interior Secretary Ken Salazar called the new plan a “roadmap … that will lead to faster, smarter utility-scale solar development on public lands.”

The plan replaces the department’s previous first-come, first-served system of approving solar projects, which let developers choose where they wanted to build utility-scale solar sites and allowed for land speculation.

The department no longer will decide projects within the zones on a case-by-case basis as it had since 2005, when solar developers began filing applications. Instead, the department will direct development to land it has identified as having fewer wildlife and natural-resource obstacles.

The government is establishing 17 new “solar energy zones” on 285,000 acres in six states: California, Nevada, Arizona, Utah, Colorado and New Mexico. More than half of the land—153,627 acres—is in Southern California.

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Go there and read. More tomorrow.
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Solar Panels Go Plastic – Light weight and easy to mount, what’s not to like

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Here is the MIT report.

http://www.technologyreview.com/news/428423/new-solar-panel-designs-make-installation-cheaper/

 

New Solar Panel Designs Make Installation Cheaper

Companies in Germany and China have made simpler designs that make it easier and quicker to mount panels to roofs.

With solar panel prices falling more than 80 percent in the last few years, many solar companies are turning their attention to reducing the cost of installing them. Two leading solar companies, Solon Energy, based in Berlin, and Trina Solar, based in Changzhou, China, have announced new designs for mounting solar panels to roofs—the companies say these designs can reduce the installation time by more than half, greatly reducing labor costs. The new designs reduce or eliminate the tools and hardware needed to install solar panels, and standardize solar installations, which have largely been ad hoc, reducing the time needed to design them.

While solar panels themselves used to account for most of the cost of large solar installations on commercial rooftops, the modules now account for about 40 percent of the cost. The rest comes from things like the necessary hardware, power electronics, and labor—which alone accounts for about 30 percent of the total.

Mounting solar panels on the flat rooftops of commercial installations typically involves anchoring long metal racks to the roof to create a framework that will angle the panels toward the sun and hold them together. Installers bolt the panels to this frame, wire the panels together, and electrically ground the racks.

 

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Utilities In The United States Still Battle Solar After 50 Years – When will they give up

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The coal companies and the utility companies in this country are morally repugnant and ecologically a disaster.

http://www.sfgate.com/business/article/Solar-energy-is-ready-the-U-S-isn-t-3988796.php

Solar energy is ready, the U.S. isn’t

By Ken Wells
Published 5:07 p.m., Sunday, October 28, 2012

Clean energy has become a dirty word in presidential politics.

In their second debate, Mitt Romney and Barack Obama each tried to outdo the other’s love of fossil fuels: Obama extolling his record on oil and natural gas production, Romney vowing to take “advantage of the oil and coal we have here.” The Republican candidate has ridiculed the administration’s $535 million loan guarantee to Solyndra, the bankrupt solar panel maker, and accused Obama of living “in an imaginary world where government-subsidized windmills and solar panels could power the economy.”

The candidates’ coolness to renewable energy comes at a time when the domestic supply of traditional energy sources, such as oil and natural gas, is at an all-time high. And yet this failure to make the promise of renewables a keynote in the debate is a huge missed opportunity. In particular, it ignores the dramatic reduction in the cost of photovoltaic solar power worldwide and the considerable benefits to U.S. consumers and the environment.

Political roadblocks

The untold story of this campaign is that what killed Solyndra may turn out to be a boon for the nation. “Economically and technologically, the game is over,” said Bill Powers, a San Diego engineer and board member of Solar Done Right, a group that proselytizes for rooftop solar power. “The hang-ups in the U.S. are strictly political.”

Over the past five years the price of photovoltaic panels has plummeted 75 percent, due largely to a glut of Chinese-made panels. The fall in prices rendered technically advanced photovoltaic panels, like those produced by Solyndra and other U.S. companies, too expensive to compete.

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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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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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