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Showing posts with label solar. Show all posts
Showing posts with label solar. Show all posts

7.13.2011

Solar economics- A whole new ball game


One of the things that drives alternative energy advocates up the wall about trying to explain the benefits of these energy sources is that some people simply don’t understand the economics of alternative energy. Nowhere is this more obvious than with solar power. The average solar panel is actually an economic asset as much as a planet-saving technology, but naturally the media and its five second attention span never mention this very basic fact.

Getting the solar message across
As the dino-fuels become more expensive and interfere with the bottom lines of more businesses and family budgets, the economic message will eventually sink in. The alternative energy industries, however, could be doing a lot more to get their message across in hard dollar terms. It’s important to recognize that the levels of unfamiliarity about alternative energy sources aren’t so much selective ignorance as a case of simply not getting the facts communicated effectively.

It’s critically important to make sure that the message that alternative energies are costs savers and game-changers for the bottom line gets through to the public, economists and governments. Arguing about environmental principles is too easy. Arguing with figures is a lot more difficult. Solar power can do a respectable job of proving its values at spreadsheet level, so it’d be nice to see some publicists getting to work on the subject, preferably ASAP.

The solar economic overview
In economic terms, solar power as an energy source is almost unprecedented. Being a passive energy source puts it in the same class as old water wheels and windmills, a type of energy technology which doesn’t have an equivalent in modern economics. There simply isn’t an economic model to assess the effect of universal solar power usage. That’s one of the main reasons economics as a science is dragging the chain on assessing the global values of solar power.

Solar power comes with some massive economic benefits
A comparatively short, competition-based supply chain: The logistics of solar are pretty much entirely contained in the assembly process. At end user point, the most that’s likely to ever be required is some maintenance. This short supply chain means that real costs to the economy are very low overall, particularly if assessed over time and in relation to competition for consumer dollars.

Flexibility and adaptability: Spreading cities have exposed the Achilles heel of the grids. Real cost factors are building up to the point at which only developers can afford to expand traditional grids. Solar simply doesn’t have that problem. 

Solar power generation has real community dollar values: Individually, a solar power generation system produces X amount of power at a measurable cost. Collectively, particularly if fed into a grid system, solar power values increase exponentially, across the entire grid. Solar power needs to be seen as a community asset as much as a household asset.

Commercially, solar power is a true cost saver: The overheads of running an office or a factory can be colossal in terms of power costs. Anything which impacts those costs positively, particularly on a large scale, directly affects the entire economy. The solar panels springing up in New York’s notoriously thrifty schools aren’t there solely for fashion reasons, either, and this is another commercial/social community solar asset that needs recognition.

When you’re installing solar panels for your home, consider for a moment your own economic issues- If it makes economic sense to install solar in your home, how about the world? Interesting thought, isn’t it?
  

6.14.2011

Remind Pres Obama about his Solar Pledge

Dear Friends,

Is President Obama going to miss his own deadline for re-installing solar panels on the White House roof?

Last October, after a campaign led by 350.org, the Obama Administration committed to installing a new set of solar panels on the White House roof by the end of Spring 2011.  With ten days until June 21st, the final day of spring, the roof is still bare.

Can you take a minute to sign a letter to President Obama reminding him to meet his deadline to put solar on the White House?

Last fall, 350.org rescued a solar panel that President Carter installed on the White House roof (only to have it removed by President Reagan) from its exile at Unity College in Maine and drove it back to the White House with a request that Obama install a new set.

The administration refused at first, but a month later Secretary of Energy Chu said at a conference, “I’m pleased to announce that, by the end of this spring, there will be solar panels and a solar hot water heater on the roof of the White House.”

We know all the press coverage and the over 40,000 of you that signed our original petition made a real impact last fall. Now, we need to show the administration that we won’t let them off the hook.

Our staff is going to be on the phone with the White House and Department of Energy this week, but they won’t pay any attention to us if they think the public doesn’t care about the installation.

When we asked President Mohamed Nasheed of the Maldives to install a new set of solar panels on the roof of his presidential residence, he got up there just a few weeks later and helped install the 48 new panels himself. So, we’re confident that if the White House decided that showing support for renewable energy was a priority they could have the panels up by June 21st, the first day of summer.

After all, a little home improvement isn’t nearly as complicated as bailing out the banks or saving the auto industry. And according to our friends at Sungevity, the cost of the installation would be earned back with savings on the electric bill in the first five years, so an installation makes fiscal sense, as well.
We don’t need President Obama to put on a tool-belt and climb the roof like President Nasheed, but we do need him to start leading on climate and energy. Putting up a new set of solar panels is no replacement for an ambitious climate policy, but it would be an important sign that the administration acknowledges it needs to do more to support clean energy.



Many thanks,

May Boeve
P.S. This is a situation where a large, public groundswell can really tip the balance, so we need to spread the word far and wide. Can you share the message with a couple of clicks on Facebook and Twitter?




4.22.2011

CSP Business Proposal

Business Proposal1

CSP-Design will enable every homeowner an option for Inexpensive Photovoltaic System for their Home or Business. 

In many of the calls from people who desire a solar photovoltaic system for their property I have found that the biggest hurdles to overcome are:

  • Total Costs of the System (Thousands of dollars that do not produce as reasonable return on the investment that is under 15 years) and or

  • Their Property Lacks the Area Needed (Total square footage of roof space) to install a field of solar panels that are needed to generate the required electricity to supply the needs of their building.

The CSP (Concentrated Solar Power) design I have been engineering and designing will overcome both of these hurdles and can be adapted for any roofing system and ground mount capabilities.


This Business Proposal is open to: People, Groups, and Organizations who are not affiliated with the following industries: fossil fuels or nuclear.

I am not trying to re-invent2 the wheel with my design and plan to adapt and use various individual components from the leaders in the photovoltaic industry that are currently on the market today.

To make this invention a viable solution and bring the product to market. I am seeking investors who are interested in assisting me with this project. To include:
  1. Monetary donations
  2. Copyright and assistance in establishing a corporation.
  3. Engineering assistance to fine tune the CSP design that will include real-world stats on the electrical output that is generated from the CSP system.
  4. Manufacturing assistance once the final design is configured.

At this stage in building the promotional model. I am relatively confident that I can build the system between $400.00-$1,000.00 and it will supply the same electrical output of a a system that uses 3-4 solar panels. This is a savings of 66% when compared to the costs of current solar panels on the market today.

I am still working out the percentages of income that investors are entitled to, and am not seeking monetary donations at this time. If you would like to learn more about the offering use scottscontracting@gmail.com and I will return any inquires for this offering.

View the Confidentiality Agreement

1Initial Exploratory Public Offering For CSP Design-4/17/2011 This heading was changed- to Business Proposal 4/22/11- I do not own a publicly traded company.

2Archimedes was the first Concentrated Solar Designer and many companies and individuals have improved upon these principles

4.14.2011

Roof System-Generates Clean Photovoltaic Energy

If you are considering a new roof, you should consider a white roof and a solar system on that roof at the same time. A cool roof reduces building cooling requirements by lowering the temperature of the roof and the building underneath. This means cooling equipment savings and in many cases the ability to run less air conditioning or purchase smaller air conditioning units.

You may even increase the life of your roof. By lowering the roof temperature, roofing products may last longer due to less thermal stress over time. Our non-penetrating design means less opportunity for leaks from your new roof.

While it makes great economic sense, a cool roof also makes an important statement about your commitment to reducing your building’s impact on the environment.  One clear environment benefit comes as cool roofs reduce the “heat island” effect in cities, lowering average outside air temperatures. Lower the outside air temperature and you need even less cooling. In fact, U.S. Energy Secretary, Steven Chu said that “whitening the world’s roofs and roads would have the same effect on global warming as removing all the world’s cars for 11 years.”

Find Photos and Additional Information on Cool Roofing Systems at: Scott's Contracting Web Site

4.12.2011

It's almost here - the DOW POWERHOUSE Solar Shingle

DOW POWERHOUSE™ Solar Shingle: Making Renewable Energy a Reality for Everyone.





I N N O V A T I O N

Spring 2011
DOW POWERHOUSE™ Solar Shingle: Making Renewable Energy a Reality for Everyone.
The shingle that powers your home is almost here. In the meantime, we wanted to update you on some exciting news in solar technology. You're part of a growing movement that's looking to switch to clean, renewable energy. And Dow has been busy turning solar potential into solar reality. Click here to find out how solar is growing across the U.S.
A Few Facts on the DOW POWERHOUSE™ Solar Shingle System:
  • It works like a residential shingle – in both its installation technique and in the roofing protection it provides.
  • It generates solar electricity by integrating solar cells into the design. In other words, the shingle is the solar panel, and the solar panel is the shingle.
  • It's going to be on rooftops before the end of 2011 in select U.S. markets. We will keep you posted on its availability.
Solar Power Is More Affordable Than Ever
In addition to being easy to install, the DOW POWERHOUSE™ Solar Shingles are more affordable than you think. Everyone in the U.S. qualifies for a 30% federal tax credit. These credits are still available, plus there may be state and local incentives in your area to make your initial costs even lower. Not to mention what you will save on your electric bills once your house is making its own energy.
For more information on how your state is working with solar power, check out this article in Fortune magazine: "The Most Powerful States for Solar."
Vote Solar Putting Solar on the Agenda
The Vote Solar Initiative is a political action group committed to driving renewable energy initiatives at the state and local level. Dow recently sponsored their yearly Equinox conference and fundraiser, helping them to raise solar awareness in communities across the U.S. Click here to visit their site and see how you can participate in your community.

Dow Is Bringing Solar to the People
Dow Solar is leading the way into solar energy for everyone. We're working with builders, roofers, legislators and solar advocates, plus we're participating in events that promote cutting-edge solar technology. Here are some of the events we're involved with or sponsored:
Affordable Residential Solar Power Is Hot at the International Builders Show
DOW POWERHOUSE™ Solar Shingles brought home the "Best of Show 2011." Dow was honored for overcoming the technical challenges of seamlessly integrating photovoltaic cells into a shingle that blends into the rest of the roof. For the first time, solar roofing can be functional and beautiful, too. Since our solar shingle can make residential solar power an affordable and clean energy reality, it's no wonder why AvidBuilder called it one of the top 10 products of IBS 2011. You can watch the video here.
Dow Helps to Expand Solar in Colorado with CoSEIA
CoSEIA is the Colorado Solar Energy Industries Association, and Dow was the lead sponsor for their annual conference. Over 450 solar industry leaders came to the conference – from as far away as China – to discuss the future of solar. CoSEIA works to advance solar policy, remove market barriers and improve education and outreach. Click here to visit CoSEIA and see what they are doing to bring solar power to the people.
Sharing Our Innovations with Other Revolutionary Thinkers at TED
Dow was proud to sponsor and be one of the six companies invited to participate on a panel discussion at the TED Innovation Lab. TED (Technology, Entertainment, Design) is a nonprofit group dedicated to bringing thought leaders in related fields together to make Ideas Worth Spreading. Dow's Global Director of Research and Development, Dave Parrillo, attended the panel moderated by Thomas Goetz, Executive Editor of WIRED magazine. The subject was how innovation is sparked and nurtured. Click here to learn more about TED.
Let Us Know.

Click the survey image below to take the poll.

 
survey
Wrap Up
You're part of a growing community that wants to make solar energy a reality. And the best way to make that happen is to share. Send your friends, customers and fellow solar enthusiasts here to receive our e-communications. And as we get ready to bring the POWERHOUSE™ Solar Shingles to market later this year, staying on our email list will ensure you will be among the first to get updates on where, when, how and how much. Stay tuned!
®™Trademark of The Dow Chemical Company ("Dow") or an affiliated company of Dow
Dow Solar – 1605 Joseph Drive – 200 Larkin – Midland, MI – 48674



--

Scott's Contracting


Green Me UP-Scotty
scottscontracting@gmail.com
http://stlouisrenewableenergy.blogspot.com
http://scottscontracting.wordpress.com

http://twitter.com/StLHandyMan
https://www.facebook.com/GreenMeUPScotty

4.10.2011

Solar vs Coal-Clean Energy is better x5

So, who’s going to stand up for solar? Here are five reasons why solar power beats the pants of coal:

(1) Solar is clean. Once up and running, a solar energy system is a zero-emissions source of power. No carbon-dioxide. No sulfur dioxide. No arsenic. No air-borne particulates… Essentially none of the environmental and health hazards associated with coal-fired power plants.

(2) Coal is old energy. Think about it: when you combust coal, you’re essentially burning dead plant material that was buried millions of years ago. Plus, coal has been mined for use as a fuel as far back as 10,000 years ago in China. Talk about yesterday’s energy…
A solar PV panel, by contrast, generates electricity using new energy from the sun. Literally: it takes about 11 minutes from when the sunlight leaves the sun, hits your solar panels and gets converted into juice to power your flatscreen TV.

(3) Coal is a finite resource. I’m not going to lie: we here in the U.S. are blessed (maybe cursed?) with vast coal reserves; we’ve got a hundred years or more worth of the stuff. But if I were going to put my money on which will happen first — we run out of coal or the sun burns out — I’d be all in on the former.

(4) Cost-wise, solar is closing in on coal. New analysis from Bloomberg New Energy Finance suggests that, as the cost of generating electricity from the sun continues to fall, solar power may soon rival coal-fired plants.

(5) Solar panels generate electricity at a fixed price. Since the “fuel” that powers solar panels comes from the sun, you don’t have to pay for it. As a result, the price of the resulting electricity won’t fluctuate over time. (Indeed, this is one of the great benefits of owning a solar energy system: as the price of conventional electricity increases over time, the impact of these hikes on your monthly energy costs is minimized.)

In contrast, operators of coal-fueled plants have to take into consideration price fluctuations of their main input, coal.

List your own reasons why Clean Solar Energy beats the burning the Dirty Fossil Fuels in the comment section below.  Scotty Article was cross posted


Green Me UP-Scotty email scotty here for a Green Site Evaluation on a Clean Energy Producing System for your Property

List you own areas that Clean Renewable Energy via Solar Photovoltaic, CSP (Concentrated Solar Power) is better than Fossil Fuels Dirty Energy From Dirty Coal

3.30.2011

Benefits of Westinghouse Solar Photovoltaic Systems

Westinghouse Solar Photovoltaic Systems Offers 

Maximum Lifetime Performance

With Enphase micro-inverters built right into each panels. Westinghouse delivers decades of powerful performance. Unlike ordinary solar panels where their power production varies from hour to hour, each Westinghouse Solar panel consistently operates at its maximum power potential. Additionally, these revolutionary panels continue to operate at maximum power even if one panel goes down compared to ordinary panels where the malfunction of one panel from shading or other failures takes down all of the panels. As a result, these revolutionary panels can perform 5% to 25% higher than ordinary panels.


Beautiful Appearance on Your Roof

No ugly external racks or dangling wires
No gaps between panels for a contiguous, smooth appearance
Westinghouse Solar Panels are beautiful, low profile, all black panels look like skylights
Only these Skylights Make $money$.

Award Winning

Westinghouse is recognized across the industry for its revolutionary design delivering the first major improvement to solar power in over thirty years.
Industry Recognized – Award Winning: Westinghouse is an Integrated Solar Power System


Built-in Reliability and Safety

No single point of system failure
Built-in electrical and ground connectors cannot loosen or be installed incorrectly
No dangerous 600 volt DC wiring
Shorter wire lengths are less likely to fail by pinching or abrading
70% fewer roof-assembled parts means a longer lasting system
25% fewer roof attachment points means greater roof integrity
Grounding process cannot skip panels, connectors will not wear or corrode

Authorized Distributor Westinghouse Solar St Louis Renewable Energy
Scotts Contracting-St Louis Renewable Energy

Solar Technology News-Artifical Leaf

  • One Artificial 'Solar Leaf' Could Power Entire Household
  • one prototype work for 45 hours straight without dipping in efficiency
  • ...could actually make it onto the market because of its low cost. It’s created from nickel and cobalt, making large-scale manufacture feasible.
  • 'artificial leaf' is submerged in water under direct sunlight, allowing it to break down the liquid into hydrogen and oxygen. 
  • These gases are then stored in the fuel cell

It’s no surprise that the most notable scientific breakthroughs have come from technology that allows us to do what nature does, well…naturally.

photosynthesis solar leaf

For instance, scientists have spent years trying to replicate photosynthesis, a process so intricate and complicated it took a multitude of trials to figure out. But they have made a breakthrough—and the impact it could have on off-grid living is huge.

The announcement of the breakthrough was made by the American Chemical Society, an organization of researchers that were able to create an “artificial leaf” capable of turning sunlight directly into energy for later use.

So what makes it different from any other solar cell currently on the market? Just like a regular leaf, it uses water.

In fact, the “artificial leaf” is submerged in water under direct sunlight, allowing it to break down the liquid into hydrogen and oxygen. These gases are then stored in the fuel cell.

While the process is impressive, the amount of energy it can produce is even more amazing—one single leaf could power an entire household in a developing area. They’ve already seen one prototype work for 45 hours straight without dipping in efficiency.

While the technology itself has been around for nearly a decade now, this particular model could actually make it onto the market because of its low cost. It’s created from nickel and cobalt, making large-scale manufacture feasible.

Daniel Nocera, Ph.D. and head researcher on the team said it best:

“A practical artificial leaf has been one of the Holy Grails of science for decades. We believe we have done it. The artificial leaf shows particular promise as an inexpensive source of electricity for homes of the poor in developing countries. Our goal is to make each home its own power station. One can envision villages in India and Africa not long from now purchasing an affordable basic power system based on this technology.”

Photo Credit: Yoko Nekonomania via Flickr CC

Posted on March 30th in Solar Products by Kayla.

2.15.2011

Tell Congress to restore the solar project funds

solar project funds to H.R. 1

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Dear Green Blog Readers,

In documents released this weekend, members of the House of Representatives have proposed cutting billions of dollars in loan guarantees for solar projects. While there is certainly a need to address the long-term fiscal issues in the United States, these cuts to the loan guarantee program would be disastrous for all solar projects with pending loan guarantees. At a time when the economy is beginning to recover, we cannot afford to jeopardize the tens of thousands of jobs these projects represent.

Tell Congress to protect American jobs and restore the solar loan guarantees by striking sections 1425 and 3001 from H.R. 1!

More information:
  • Loan guarantee programs serve a critical market function by enabling new technologies to move from the prototype stage to commercial deployment.
  • It would be a huge breach of trust and faith for Congress to eliminate this program as the projects are nearing finalization of terms and financial closing. Many have invested significant time and money during the lengthy approval process.
  • Technically, these funds are not obligated until a loan guarantee is closed and therefore conditional loan guarantees and applications that are in due diligence are considered un-obligated.  However, Congress and the Administration should treat funds for in-progress loan guarantees as if they are obligated.
    Take Action Button

    As always, we here at SEIA appreciate your efforts. Thanks for being a part of Team Solar!

    Michael Rader
    SEIA

2.11.2011

Solar Energy Technologies Program-Financial Opportunities


 

Financial Opportunities


Subscribe to the SETP Financial Opportunities RSS feed.
The U.S. Department of Energy (DOE) Solar Energy Technologies Program (Solar Program) posts current and past funding opportunities for all program areas, including research and development (R&D) for photovoltaics and concentrating solar power, systems integration, and market transformation projects. In addition, links to related opportunities from DOE national laboratories and other federal agencies are available.
In carrying out its vision and mission, the federal Solar Program conducts a broad portfolio of activities to make electricity from solar technologies more cost competitive with conventional forms of electricity.
This open, competitive solicitation process is designed to meet the top technology needs identified by industry's roadmaps. SETP funding opportunities encourage collaborative partnerships among industry, universities, national laboratories, federal, state, and local governments and non-government agencies and advocacy groups. Solicitations, when available, include financial and technical assistance.

Notice of Intent to Issue

Demonstration Project for Concentrating Solar Technologies

Description:

DOE intends to issue a Funding Opportunity Announcement (FOA) to facilitate the demonstration of utility-scale, concentrating solar technologies, which include Concentrating Solar Power (CSP) and Concentrating Photovoltaics (CPV), within the next 30 to 60 days. The objective of the FOA is to enable advanced technologies to bridge the gap between system development and commercial deployment. This FOA would support the demonstration of CSP and CPV technology at a sufficient scale to prove their readiness for utility-scale power production. Technologies and systems that successfully complete demonstrations under this program may be better positioned to secure financing from private sources for utility scale projects.

Request for Information Update

Gathering information from specific audiences is valuable as financial opportunities are developed. The purpose of a request for information (RFI) is to gather input periodically throughout the year, especially as multiple opportunities for funding and technical assistance are planned for the year.

In May 2010, DOE released a Request For Information (RFI) on solar workforce certifications and training program accreditation. Based on the comments received under this RFI, respondents agreed that DOE leadership and financial support in this area is important. Because there was not a clear consensus regarding the exact direction DOE should take, the Solar Program plans to gather additional stakeholder input in early 2011 to identify the key issues surrounding credentialing and assessment of the solar workforce. Please note there are no plans to issue a competitive solicitation in this area, but funding opportunities may be available at a later date.
Information is also available on the following:

2.08.2011

Westinghouse Solar Information

 Westinghouse Solar


  • The trusted way to go solar

Westinghouse has always been a part of your home. Westinghouse Solar continues that tradition with solar panels that are safe, powerful and reliable. Energy from the sun is clean and affordable. And now you can get it from a name you’ve always counted on.

  • Power for the way you live

The Westinghouse Solar Power System is good for your planet, and even better for your budget. It will not only decrease your dependency on fossil-fueled energy sources, but will dramatically reduce - in some cases even eliminate - your energy bill. 

  • The Westinghouse warranty

You have our word on it. Every Westinghouse Solar Power System is backed by the proven reliability of the Westinghouse name. Our warranty covers panels for 25 years, inverters for 15 years.

  • 5-25% more energy than other solar panels

Advanced monocrystalline solar cell technology efficiently captures and converts more of the sun’s energy into more usable power for you, while technology on each panel ensures you achieve maximum power production 

  • Safe, reliable AC power

Unlike the high-voltage DC current powering ordinary systems, Westinghouse Solar Power systems feature a built-in technology that delivers safe AC power. In addition, our innovative design guards the system from the corrosive effects of sun, wind and rain to provide decades of optimal performance. 

  • Sleek, efficient design

The clean, contemporary look of Westinghouse Solar Panels complements any roof and style of home. But the benefits extend beyond beauty. The entire system requires 80% fewer parts to install and maintain, ensuring years of worry-free operation.

11.30.2010

Solar Trackers Increase a Solar Panels Electrical Output

Dual-Axis Tracking Generates More Power

By Mark Scanlon, CEO of Sedona Energy Labs   |   November 23, 2010
Dual-axis tracking systems generate more power than fixed arrays by continuously positioning the PV array so that the incident angle of solar energy is 0°.

Solar Trackers Increase a Solar Panels Electrical Output- Solar Mounts- Solar Directory-Solar Trackers and Solar Panel Mounts Solar power directory by state.


While a tremendous amount of research and funding is going into trying to increase the efficiency of photovoltaic cells by a few percentage points, there is a readily available solution that yields a 40% increase in produced power today - dual-axis tracking [1]. By simply moving the PV array so that it is aligned with the sun throughout the day and seasons, you get a large boost in produced power at a small incremental cost. Of course the cost depends on the design of the tracking system. In today's market, this cost ranges from under a $1.00/produced watt, to around $3.00/produced watt. 

We are talking about produced watts rather than rated watts.
One of the drawbacks of most dual-axis trackers has been the pole-mounted design. A better design would be lightweight, low wind resistance, and no requirement for an extensive foundation to support it.

Solar Trackers Increase a Solar Panels Electrical Output- Solar Mounts- Solar Directory-Solar Trackers and Solar Panel Mounts Solar power directory by state.



--
Scott's Contracting
scottscontracting@gmail.com
http://stlouisrenewableenergy.blogspot.com

8.29.2010

Solar Bill of Rights

Dear Friends,

I have just read and signed the petition: "Support the Solar Bill of Rights".

Please take a moment to read about this important issue, and join me in signing the petition. It takes just 30 seconds, but can truly make a difference. We are trying to reach 20000 signatures - please sign here: http://www.thepetitionsite.com/takeaction/715/758/531/

Once you have signed, you can help even more by asking your friends and family to sign as well.

Thank you! Scotts


http://www.care2.com/go/z/e/VdK7/qM../BJ1xQ

8.16.2010

Solar Panel Trackers and Mounting Product Links

Solar Panel Trackers

Although solar panel trackers are expensive, (several thousands of dollars) they can produce more power in a day than a fixed array as they "track" the sun's path. Solar trackers are often used in water pumping applications to maximize daily production (30-40% improvement over static solar panel mounting). They are generally custom built and take one to three months to manufacturer. One drawback to trackers is that they are subject to failure, as is any mechanical device, and could possibly get stuck in one position until fixed. Trackers are best suited for a handy individual. Each manufacturer provides a sizing sheet according to the number of modules you have and the configuration. These sizing sheets are often found in the Product Documentation tab of each product's specification page.

Solar Panel Mounting

When it comes to solar panel mounting options, you really have many from which to choose. Plenty of people opt for simple solar panel roof mounts, but if you live in a heavily wooded area or different kind of climate, rest assured you have other options. If you have solar power panels or solar arrays and you want to maximize their efficiency by gathering the most power possible, you'll want to consider a solar tracker. By using a sun solar tracker you'll help your solar panel get the most sun possible throughout the day as it automatically points your solar array to a perpendicular line with the sun. This type of active sun tracker uses a special sensor and is motorized so that you can walk away but your solar panel is adjusting all day long. If you are ready to mount your solar panel, make sure you investigate all of the options available. Set up the appropriate ground mounted solar panel system, roof system or pole mounted system and save money while you generate your own power. Enjoy the freedom of the road and powering your RV with solar panels rather than expensive fossil fuels. 

Click Here to Go to Solar Panel Tracking Web Site

 

7.08.2010

Solar- Renewable Energy Tax Credit Information for Solar Energy Producing Systems


Renewable Energy Tax Credit
Information for Solar Panels
Scotts Contracting- St Louis Renewable Energy

Solar Energy Tax Credit Information- Solar Panels-

Current Tax Credit are available at 30% of the cost,

up to $500 per .5kW of Power Capacity, through 2016.

Applies to your Existing "Principal Residence"

not to include your vacation homes. Applies to

Home Owners Only not Renters.


Solar Water Heaters Click Here
Contact Scotts Contracting for the Sales and Installation
of your Solar Energy Producing System


--
Scott's Contracting
scottscontracting@gmail.com
http://www.stlouisrenewableenergy.blogspot.com

7.02.2010

Italy vs US- Solar Facts

Italy Surpasses US in Solar PV

Installing More Every Two Months than California in an Entire Year
Published: June 30, 2010

New York, United States -- In a dramatic display of the power feed-in tariffs have in driving markets, Italy installed more solar photovoltaics (PV) in 2009 than the entire U.S. Moreover, within the first quarter of 2010, Italy's total installed solar PV capacity was expected to exceed that of the US.

The proposed revision to the feed-in tariff program (conto energia), currently waiting approval, reduces the tariffs and sets a new target of 3,000 MW for the three-year period from 2011 to 2013.

Italy installed 720 megawatts (MW) of solar PV in 2009, nearly all of that on rooftops. In contrast, the U.S. installed 435 MW during the same period, according to a draft report by the Interstate Renewable Energy Council (IREC). Italy introduced a system of feed-in tariffs for solar PV in February, 2007 after concluding that the previous program of Tradable Green Certificates was not delivering the results desired. By the end of 2007, Italy had installed five times more solar PV than in the previous year. Despite numerous bureaucratic roadblocks, the solar industry took off in 2008 and installed nearly 350 MW, then a record-breaking number. Solar PV installations have been doubling since then and are expected to reach 1,500 MW in 2010. Italy is three-fourths the size of California, with which it is often compared because of their similarly-sized economies. Italy has a population of 60 million, to California's 40 million. The population of the U.S. is five times that of Italy. Italy is now the world's second largest annual market for solar PV, after Germany. IREC estimates that there was 1,250 MW of total installed solar PV capacity in the U.S. at the end of 2009. Currently, the U.S. is installing 40-50 MW per month, and Italy 125 MW per month. At this pace, Italy surpassed the U.S. in total installed PV capacity before the end of the first quarter, likely by the end of February 2010. Italy is installing more capacity--250 MW--every two months than California is installing per year.

By the end of 2010, Italy will have a total installed capacity of more than 2,500 MW. This is two and one-half times more capacity than is expected in California, and one and one-half times more than is expected in the U.S. Italy's 2007 decree also set a solar PV target of 1,200 MW. They reached their target earlier this year. Unlike Spain, the government has no plans to cut the program dramatically. The proposed revision to the feed-in tariff program (conto energia), currently waiting approval, reduces the tariffs and sets a new target of 3,000 MW for the three-year period from 2011 to 2013. The revisions are expected to be approved sometime this summer. The proposal cuts the tariffs 18% in three equal steps of 6% during each of the first three quarters in 2011. According to Gruppo Imprese Fotovoltaiche Italiane (GIFI), 93% of all solar PV in Italy is installed on rooftops in distributed applications. Data from Gestore dei Servizi Energetici indicates that about one-fourth of all Italian solar PV installations are less than 20 kilowatts (kW) in size, or about 300 MW.

  • <3 kW: 6%
  • >3 kW<20 kW: 21%
  • >20 kW<200 kW: 23%
  • >200 kW<1,000 kW: 36%
  • >1,000 kW: 14%

Paul Gipe has written extensively about renewable energy for both the popular and trade press. He has also lectured widely on wind energy and how to minimize its impact on the environment and the communities of which it is a part.

Scotts Contracting is available to assist in the Design and Construction for your Renewable Energy System. Click here to email Scotts Contracting to schedule your Free Green Site Evaluation.

The Solar Decision

In determining which system is the right choice for your roof Solar Thermal or Solar Electric. Would you like to Generate Electricity or Heat Water for your Building? Scotts Contracting is available to assist in the Design and Construction for your Renewable Energy System. Click here to email Scotts Contracting to schedule your Free Green Site Evaluation.

Solar Energy Fights for Roof Space

by Chris Laughton, The Solar Design Company
Published: July 1, 2010

An increasing problem in today's crowded buildings is finding the best position to fit solar collectors. The two main forms of collectors found on roofs are for water heating (solar thermal) and photovoltaic (solar electricity). If space is short, how can you decide which of these two technologies gets priority?

The "fight" for roof space grows more significant every year, not only as equipment becomes more affordable and hence larger but also because optimum locations are occupied first by other equipment. These include roof skylights, flues, extract ducts, air conditioning and aerials. Such equipment not only reduces the available roof area but can also cast shadows that reduce the performance of solar equipment. Shading has a particularly strong effect on solar collectors, with even small shadows causing significant losses on photovoltaic modules.

Shading can occur from other roof objects or nearby buildings, trees or hills. These are particularly prominent when the sun is low in the sky, such as morning and evening or during winter. In order to correctly position solar collectors, consideration must be given to the daily sun-path between sunrise and sunset. This sun-path also alters seasonally according to the latitude of the location. There are also local climatic conditions to consider, where perhaps morning mists or afternoon thunderstorms occur.

It is worth noting that particular collector types react differently to the sun's constantly changing position. In some cases, automatic tracking devices are used to improve performance by altering the collectors to always face in the optimum direction. This affects what is known as the 'angle of incidence' of the beam solar radiation on to the collector. Solar radiation in fact falls on to collectors by one of three routes: 'beam' radiation in a straight line from the sun; 'diffuse' from all points in the atmosphere; and a proportion that is reflected from other surfaces (called the 'albedo'). During a typical day, not only does the total radiation change but so does the proportion of these three types. Some collectors use mirrors and tubular absorbers to improve the performance of a collector through a longer arc of the sun's path.

Professional solar engineers now use computer simulation software, such as T*SOL for solar thermal or PV*SOL for solar photovoltaic, to work out the best use of a given roof area. This allows rapid calculation of the total annual energy output from each hour of the year, as well as easy comparisons of all options. Good quality programs allow for comparison between different brands of equipment and user load profiles.

Separate programs are used for solar water heating and photovoltaics because they are two fundamentally different technologies. For example, the conversion efficiency of solar radiation to thermal occurs at a much higher rate than conversion to electricity. Also, heat is usually stored in water whereas electricity is either sold straight to the utility grid or stored in batteries. It is important not to underestimate the effect of changing loads on domestic hot water heating or the existence of a surplus feed-in tariff for electricity. The user may indicate a desire to alter their patterns of use to optimise solar contribution; however, it is unlikely that this will be retained through staff or ownership changes. Professional simulation software can visualise each of these situations and present a clear interpretation to clients.

While we can never fully anticipate conditions for a given day or week ahead, we can be increasingly confident of long-term monthly and annual results. Even if there is an acceptable margin of error in calculating future values, comparisons of equipment configurations and user load profiles are still accurate provided the same climate data set is used in the simulation. It is always best to reveal any assumptions for scrutiny and to use certified collector values when performing computer simulations for clients.

Where a roof becomes crowded, the more efficient solar products are likely to be prioritised in order to give the smallest footprint. Computer simulations will anticipate the best overall total energy production to displace conventional energy sources. An on-site tool, such as a solar site selector, is used to anticipate shading as an ideal accompaniment for computer simulations. These allow for real-time analysis of any site using a template and viewfinder, the results of which can then be recorded digitally. Generally speaking, if both solar water heating and photovoltaic collectors are being used, the priority goes to the latter if this permits avoiding shading.

Chris Laughton is Managing Director of The Solar Design Company. He is an experienced heating engineer, author and lecturer, and a regular columnist in magazines, journals and on-line media. His latest book Solar Domestic Water Heating: The Earthscan Expert Handbook for Planning, Design and Installation was published by Earthscan last month.

The information and views expressed in this article are those of the author and not necessarily those of RenewableEnergyWorld.com or the companies that advertise on its Web site and other publications.

-- Scott's Contracting scottscontracting@gmail.com http://www.stlouisrenewableenergy.blogspot.com http://www.stlouisrenewableenergy.com scotty@stlouisrenewableenergy.com

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