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Showing posts with label solar roof shingles. Show all posts

1/07/2011

The Next Generation of Solar Shingles

Solar energy is one of the oldest forms of alternative energy. Photoelectric cells have been around for about 40 years now. While the technology is relatively old, there have been relatively few developments resulting in a lower production cost: until now. The results of the recent COP16 conference in Cancun, Mexico were a little underwhelming, but there was still exciting news being released.

sunrise
Just a few months back Andrew Liveris, Chairman and CEO of the Dow Chemical Company announced the release the first consumer-grade solar shingle in 2011. Many on Wall Street speculate that the Dow Powerhouse Solar Shingles will produce revenues in excess of $5 billion dollars between now and 2015. This release, combined with earlier breakthroughs on the protective films that cover the shingles, brings the dream of sustainable energy closer to the average consumer. The reason this energy option stands out from traditional solar panels, is because Dow’s solar shingle is installed onto a roof and performs much like a typical asphalt shingle. The solar shingle not only performs the usual functions of shingling, but also greatly decreases a home’s energy costs.

solar roof shingles
The transformation of sunlight to electricity is made possible by innovative photovoltaic technology. Dow's shingles will use copper indium gallium diselenide solar modules (CIGS), which are considered second or third generation solar tech, compared to the much less efficient. CIGS is generally most efficient at turning sunlight into electricity. This CIGS technology is brand new and gaining ground quickly in the field of energy efficiency while simultaneously allowing solar power to be generated from thinner material. According to Dow CIGS-based PV cells are incorporated into the product by molding them with a polymer formulation which results in a unique design that has similar aspect, weight, and installation practices as an asphalt shingle and also generates electricity. Electrical circuitry is integrated into each shingle and connected by plug connectors. The shingles have a life expectancy of 15 to 20 years.
According to Alternative Energy: A 2009 Report Card, solar energy has grown 1,000 percent since the turn of the century. Yahoo Finance says solar energy will grow an additional 1,500 percent globally by 2020. Andrew Liveris has stressed the importance of the relationship between the economy and the green tech industry for years: a win-win for the unemployed and the environment.

solar roof shingles
The U.S. has extended tax breaks for solar energy under the recent stimulus package. The domestic tax breaks and numerous international subsidies for solar energy put into place by many Europeans nations as well as China exemplifies that the domestic and international demand for solar energy will only increase. Even with domestic and international demand for alternative energy sources like solar energy, Executive Vice President Peribere highlights the importance of consistent support via state legislation and incentives in order for the solar market to expand. The company expresses that a lack of clarity surrounding the country’s political agenda is causing businesses and investors to stay on the sidelines. “Businesses have a lot of money they want to spend on growth. Most of that is being spent overseas — including us.” Stephanie A. Burns, Dow Corning Corp. chairwoman and CEO said an example of the “political uncertainty” is the U.S. government’s research and development R&D tax credit. The tax credit reduces federal tax liabilities, based on the amount a company spent in the development of a new product or to improve existing products “It would be great if that was permanent and we knew it was there,” Burns said. “And we knew we could rely on it and we knew the investments we do make here would have a tax benefit.”

This post was written by Daniel Fielding, a freelance writer who focuses on gadgets and the environment. He is the lead editor for Shades of Green, a Green Technology Blog.

5/18/2009

Solar Roof Shingles Reduce Your Electric Bill

solar roof shingles

Solar power is a renewable resource which can never get exhausted, no matter how much you use it. Using it to full effect can help you save a lot of money. Solar roof shingles are the latest modified form of solar panels which are being used at homes to get the maximum out of sun’s energy. Roof shingles powered by solar energy are still a very new technology to most people, but many are already using them because of their long term benefits.

What are solar roof shingles?

These are basic looking shingles which can generate electricity by converting the sun rays into electrical energy. Solar roof shingles are installed on the roof, tilted towards the direction of the sun. Once you connect them with home appliances, you will notice a drastic reduction of your electricity bills. Each shingle has the ability to produce electricity between 17 to 50 watts. That doesn't sound much but adds up quickly when multiplied by a whole square footage of the roof. Shingles come with special support structures that can withstand wind speeds equal to 80 mph.
The technical name used for solar roof shingles by scientists is Building-Integrated Photovoltaic (BIVP)

How to install solar roof shingles?

Solar roof shingles can be installed faster than solar panels. The initial cost of this technology is estimated around $20,000. Both, front and back side of the roof can be covered with solar shingles because the systems doesn't require direct sunlight but produce electricity as long as there’s daylight, even on cloudy days.

They are installed like asphalt tiles. These are put in layered form on the roof with 5 inches of the shingle exposed to sun. After the installation, wiring is connected to home electrical appliances by electrician or expert in solar energy systems. You can then feed the electricity back into your local power grid or go off grid entirely.

Long Term Benefits of Solar roof shingles

Although these solar roof shingles are expensive initially in long term perspective, they can prove to be the cheapest way to generate electricity.

  • The cost of maintenance and monetizing is very economical.
  • They can be used in very remote places on earth.
  • People living near equator can use it to its full potential as they receive sun’s UV rays all throughout the year.
  • The quantity of power generated by such system is enough to fulfill home needs.
  • They are easily replaceable, flexible and a green way to produce electricity, which is the main reason behind the invention of the technology.

4/09/2008

Nanosolar Video - Solar Power for 66pc cheaper

This video introduces one of the most active solar power companies in the world: Nanosolar from San Jose, California.
The main goal of the company is to introduce cost-efficient solar power to the world. It took almost five years of very hard work, but the results are truly amazing. As in the case of so many new high technologies, this success have been accelerated by 'military intervention' from DARPA and its endless budget for military purpose, which is going 'to dress in civil clothes' for wider public use in this case, as well.

I am pretty sure, the company is going to become a big global corporation, very soon and that the big scale of their production line is going to lower the prices of their products, even more. When we speak about massive production and lowering the prices of products, we should never forget to mention increases of efficiency rate of solar power devices by scientific research, which are additionally lowering the cost per 1W of produced solar electricity. That number, the cost per 1Watt of power is one of the most important factors in making decision for solar (renewable) or fossil (massive carbon emissions) energy sources (beside Power Lobbying in the places of Power, of course, such as Washington, London, Paris, Berlin, Brussels, Tokyo, Moscow, Beijing).



When 'critical mass' of citizens is going to realize the fact, that solar power is FREE, endless and environmentally friendly, nobody could stop the process of massive turn to the solar power.
Roof shingles, solar panels, solar curtains/carpets, paint which could harvest solar power, solar foil and many more innovative products are going to be seen everywhere.

Thanks to Blake Carper's Blog!

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