Sun Power

July 13, 2011 By: Admin Category: Solar Power

Using the Sun for Power – How It Works

Executive Summary about Sun Power by Richard Chapo

Generating electricity from the sun is all about converting sunlight into power. The technology behind solar systems is known as photovoltaic technology. Essentially, this technology involves using sunlight to create a chemical reaction. This process creates a direct current of electricity. The electricity is then converted to usable alternating current electricity and stored in a battery or fed into a utility grid system.

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Solar Cost

July 12, 2011 By: Admin Category: General

Solar Power For Home – How Much Does Home Solar Cost?

Executive Summary about Solar Cost by Anthony Dempster

Solar power for homes is becoming an increasingly popular method of powering some or all of your house. However many people ask the question “How much does home solar cost?”

There are two main methods of getting your house up and running on solar power electricity. Simply put, they are either professional installation or “do it yourself” (DIY) solar panel installation.

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Solar Fan

July 10, 2011 By: Admin Category: General

Using Solar Power Fans to Reduce Your Electricity Bills

Executive Summary about Solar Fan by Peter I. Wilson

Solar power fans are very easy to install, and also completely free to run. The majority of solar powered fans have a built in solar panel. Why Should I use Solar Power Fans in my Attic?

The solar powered fans do not require any extra power which would make your electricity bill more expensive. The other really good feature about solar powered fans is that they’re really easy to install. Newer homes are including these solar powered fans as standard, however if you own an older style home then you should consider installing these fans. You can buy fans suitable for fitting into older style homes.

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Solar Income

June 20, 2011 By: Admin Category: General

Can You Really Make Money With Solar Power?

What’s the real truth behind all those ads?

Just searching around online for information about solar power, solar energy, and installing solar panels on your own home, you’ve probably run across many claims which say you can earn money from solar power. So is it true? Yes… sort of.

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Sustainable Product

February 07, 2011 By: Admin Category: Solar Appliances, Solar Gadgets, Solar Prototype

Samsung Be Concept by Tommaso Gecchelin

A product design is not just an isolated object, but also the complex network of relationships that constitute it for what it will be understood in context. This work wants to build a network of environmental sustainability and putting the individual at the center of this network.

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Photovoltaic Cells

December 21, 2009 By: Admin Category: Solar Cells

Glitter-sized Solar Photovoltaics Produce Competitive Results

Adventures in microsolar supported by microelectronics and MEMS techniques

Sandia National Laboratories scientists have developed tiny glitter-sized photovoltaic cells that could revolutionize the way solar energy is collected and used.

The tiny cells could turn a person into a walking solar battery charger if they were fastened to flexible substrates molded around unusual shapes, such as clothing.

The solar particles, fabricated of crystalline silicon, hold the potential for a variety of new applications. They are expected eventually to be less expensive and have greater efficiencies than current photovoltaic collectors that are pieced together with 6-inch- square solar wafers.

The cells are fabricated using microelectronic and microelectromechanical systems (MEMS) techniques common to today’s electronic foundries.

Sandia lead investigator Greg Nielson said the research team has identified more than 20 benefits of scale for its microphotovoltaic cells. These include new applications, improved performance, potential for reduced costs and higher efficiencies.

“Eventually units could be mass-produced and wrapped around unusual shapes for building-integrated solar, tents and maybe even clothing,” he said. This would make it possible for hunters, hikers or military personnel in the field to recharge batteries for phones, cameras and other electronic devices as they walk or rest.

Even better, such microengineered panels could have circuits imprinted that would help perform other functions customarily left to large-scale construction with its attendant need for field construction design and permits.

Said Sandia field engineer Vipin Gupta, “Photovoltaic modules made from these microsized cells for the rooftops of homes and warehouses could have intelligent controls, inverters and even storage built in at the chip level. Such an integrated module could greatly simplify the cumbersome design, bid, permit and grid integration process that our solar technical assistance teams see in the field all the time.”

For large-scale power generation, said Sandia researcher Murat Okandan, “One of the biggest scale benefits is a significant reduction in manufacturing and installation costs compared with current PV techniques.”

Part of the potential cost reduction comes about because microcells require relatively little material to form well-controlled and highly efficient devices.

From 14 to 20 micrometers thick (a human hair is approximately 70 micrometers thick), they are 10 times thinner than conventional 6-inch-by-6-inch brick-sized cells, yet perform at about the same efficiency.

100 times less silicon generates same amount of electricity

“So they use 100 times less silicon to generate the same amount of electricity,” said Okandan. “Since they are much smaller and have fewer mechanical deformations for a given environment than the conventional cells, they may also be more reliable over the long term.”

Another manufacturing convenience is that the cells, because they are only hundreds of micrometers in diameter, can be fabricated from commercial wafers of any size, including today’s 300-millimeter (12-inch) diameter wafers and future 450-millimeter (18-inch) wafers. Further, if one cell proves defective in manufacture, the rest still can be harvested, while if a brick-sized unit goes bad, the entire wafer may be unusable. Also, brick-sized units fabricated larger than the conventional 6-inch-by-6-inch cross section to take advantage of larger wafer size would require thicker power lines to harvest the increased power, creating more cost and possibly shading the wafer. That problem does not exist with the small-cell approach and its individualized wiring.

Other unique features are available because the cells are so small. “The shade tolerance of our units to overhead obstructions is better than conventional PV panels,” said Nielson, “because portions of our units not in shade will keep sending out electricity where a partially shaded conventional panel may turn off entirely.”

Because flexible substrates can be easily fabricated, high-efficiency PV for ubiquitous solar power becomes more feasible, said Okandan.

A commercial move to microscale PV cells would be a dramatic change from conventional silicon PV modules composed of arrays of 6-inch-by-6-inch wafers. However, by bringing in techniques normally used in MEMS, electronics and the light-emitting diode (LED) industries (for additional work involving gallium arsenide instead of silicon), the change to small cells should be relatively straightforward, Gupta said.

Each cell is formed on silicon wafers, etched and then released inexpensively in hexagonal shapes, with electrical contacts prefabricated on each piece, by borrowing techniques from integrated circuits and MEMS.

Offering a run for their money to conventional large wafers of crystalline silicon, electricity presently can be harvested from the Sandia-created cells with 14.9 percent efficiency. Off-the-shelf commercial modules range from 13 to 20 percent efficient.

A widely used commercial tool called a pick-and-place machine — the current standard for the mass assembly of electronics — can place up to 130,000 pieces of glitter per hour at electrical contact points preestablished on the substrate; the placement takes place at cooler temperatures. The cost is approximately one-tenth of a cent per piece with the number of cells per module determined by the level of optical concentration and the size of the die, likely to be in the 10,000 to 50,000 cell per square meter range. An alternate technology, still at the lab-bench stage, involves self-assembly of the parts at even lower costs.

Solar concentrators — low-cost, prefabricated, optically efficient microlens arrays — can be placed directly over each glitter-sized cell to increase the number of photons arriving to be converted via the photovoltaic effect into electrons. The small cell size means that cheaper and more efficient short focal length microlens arrays can be fabricated for this purpose.

High-voltage output is possible directly from the modules because of the large number of cells in the array. This should reduce costs associated with wiring, due to reduced resistive losses at higher voltages.

Other possible applications for the technology include satellites and remote sensing.

The project combines expertise from Sandia’s Microsystems Center; Photovoltaics and Grid Integration Group; the Materials, Devices, and Energy Technologies Group; and the National Renewable Energy Lab’s Concentrating Photovoltaics Group.

Involved in the process, in addition to Nielson, Okandan and Gupta, are Jose Luis Cruz-Campa, Paul Resnick, Tammy Pluym, Peggy Clews, Carlos Sanchez, Bill Sweatt, Tony Lentine, Anton Filatov, Mike Sinclair, Mark Overberg, Jeff Nelson, Jennifer Granata, Craig Carmignani, Rick Kemp, Connie Stewart, Jonathan Wierer,

George Wang, Jerry Simmons, Jason Strauch, Judith Lavin and Mark Wanlass (NREL).

The work is supported by DOE’s Solar Energy Technology Program and Sandia’s Laboratory Directed Research & Development program, and has been presented at four technical conferences this year.

The ability of light to produce electrons, and thus electricity, has been known for more than a hundred years.

[Via]

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Outdoor Solar Lights

December 01, 2009 By: Admin Category: Solar Light

Outdoor Solar Lights Explained

Outdoor solar lights uses the identical action to generate power as the solar panels on your ceiling (or that you could set up on your ceiling, if you selected to). Essentially, it applies photovoltaic (PV) cells, which accumulate and switch solar energy into electrical energy. The PV cells apply semiconducting materials to engage the sun’s light, which interacts with the silicon and another components to produce electrical energy. The electrical energy runs over cables which power the battery, which in go powers the light. This is an highly simple explanation, but it will present you the common idea of how solar cells play. They can only make electrical energy from direct sunshine, which is why solar lighting wants a battery in order to be able to light up the dark.

So that the batteries to keep a constant charge, the solar light fixture should be in a position that meets full sunshine for almost of the daylight. If it just gets partial sunlight, because it’s barred by trees or other construction, or because your area has much of cloudy conditions, the batteries will run out earlier, and your fixture will supply light for a lower amount of time. Most outdoor solar lights fixtures own a backup power system which applies rechargeable batteries. Solar lights fixtures which apply a small amount of electrical energy frequently apply small AA Ni-Cad or NiMh batteries. But more strong solar lights fixtures (like head lights) apply a covered lead acid battery.

Photo detectors that automatically evaluate light degrees (like the kind that tells your photographic camera when to apply its flash) are constructed into the solar lights fixtures. They monitor light degrees and turn the fixture off at morning and on at nightfall. But get sure there are no artificial light sources (like a street lights or head light) that may contribute a wrong reading and forbid the light from turning on.

Outdoor solar lights usually utilizes LED bulbs. They apply less power than incandescent bulbs and, with a lifetime of around 20 years, are much longer-lasting. Until lately, solar lights overall has not been as bright as lighting powered straight by direct current electrical energy. But the earliest super bright LEDs can at present illuminate as well as halogen bulbs.

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Build Your Own Solar Panel

September 13, 2009 By: Admin Category: Solar Panel

How To Build Your Own Solar Panels

How much are you paying for your electricity or gas bill? Would you like to save on the costs of using this energy? Then read through the following article and get an idea of what you could possibly do.

In this write up we will cover the following subjects, DIY Solar Electricity UK, making your own solar panels and Building Solar Panels instruction.

Building your own solar panels is really a sensible choice to make. Why: because firstly the price of electricity is increasing and the prices of solar panels are increasing too. So you would start saving money the minute you decide you will do this yourself unlike purchasing one. It’s not difficult building a panel its actually fun.

There is always the satisfaction that comes from knowing that you were able to do it on your own If you are good at it you might even try it as a weekend money generating project. Yes; that’s how long it normally takes about a weekend’s length and you have your own power.

This is one of the simplest tasks that you could undertake if you’re interested in saving power costs. You don’t have to worry about building your own solar panels as many of the systems are quite user friendly. They come with complete DIY guides. These guides have step by step pictures of how you can go about setting up your own panel. Most even come with instructional videos of methods.

To reduce some of the concerns you might probably have you should select a solar panel system that has a support center or toll free line you can make use of when you get to those finer details that need consulting. They should be able to tell you where and how you can find the components that are required and the prices that you should expect.

Did you also know that when you decide to undertake building your own solar panels and install them in your home you increase the value of your house by thousands? Isn’t that a great incentive to build panels in your house? If you choose to go green as they say, remember safety is important.

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Solar How

July 03, 2009 By: Admin Category: Solar Power

How Solar Power Plant Installation

Solar Power Plant is a system of clean energy and produce electricity from sunlight. Also support the issue of global warming. Because energy is widely used by State Electricity Enterprise is the energy that can not be renewable (fossil) fuel such as kerosene, gas, coal, etc. Whereas current cost of fuel has begun to become dearer. If using the sun is free energy available abundant.

Installation and Operation is very easy, enduring long and a very inexpensive investment option to be public at this time. Can be used to meet electricity needs anywhere, especially in rural areas or areas that do not (not yet) reached by State Electricity Enterprise network.

Various Benefits of Using Solar Power Plant:

• Source of energy that never runs out and is very environmentally friendly
• Can be used anywhere, especially areas that have not yet reached by State Electricity Enterprise network
• No need to pay State Electricity Enterprise
• Without fuel and pollution-free
• Not require special treatment
• Free from all treatment
• Can be used to light a variety of electrical equipment, especially for lighting the lamp, radio, cassette, TV
• Can be used for emergency lighting when electricity of State Electricity Enterprise, have extinction (power off)
• And so on

Principles of Sun Power Plant

In the daylight the solar panel receives light (rays) of the sun and then converted into electricity through the Photovoltaic. Electricity generated by solar panels can be directly channeled to burden or stored in Electric Box System (EBS), before use to load, light, radio, TV etc.

At the night, where the solar panel does not generate electricity. Electricity that has been collected (stored) in a Electric Box System (EBS) will be used. To turn on electrical equipment, especially the lighting, etc.

Components of Solar Power Plant

1. Solar Panel:
Change the sunlight into electricity. Modular form of the solar panel provides the ease of the electricity needs for various scale of the needs.

2. Electric Box System (EBS):

• Set of traffic from the solar panel to the load
• Saving electric current generated by the solar panel before used to drive the load. Burden can be a lamp, electronic device and other equipment that requires electricity
• Very flexible in placement, you can take shift about.

The Design of Solar Power  Plant – The Practical and Flexible

With a flexible design that can be possible to increase the capacity of electricity with solar panels only add (maximum 2 solar panel) for each package.

Installation HOW VERY EASY

1. Place solar panel outside the house (roof, roof tile, or make your own tower, etc.) directly to the sunlight adjust with the situation / place / situation you secure place
2. Pull cable from solar panel, and enter plug to EBS IN DC (There are DC IN and DC OUT) Plus ON-OFF if you use (do not forget to note the ON-OFF key If you use ON if not used right OFF). For a cable if less in length you can add/connect your own. Set EBS & cable installation neat and safely out of reach of children etc.
3. If solar panel at work, on the EBS have red indicator lights, when charging energy from the panel to EBS will be full, red indicator light will turn on flicker, if it is full will be off. Green indicator lights mark the flow you are working.
4. In the EBS (Electric Box System) have stop contact Out AC is useful to set the electronic equipment appropriate with watt and energy saved. You can also make your own plug combination for parallel needs. (Many stop contacts that have sold in the market with 2 holes, 4 holes, 6 holes, etc.) find the high quality.
5. Ready to use to set the lights, tv, radio, etc

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Wind Turbines

June 12, 2009 By: Admin Category: Wind Power

Wind Generators As Your Energy Source

Many people have started to install wind turbines, wishing to lower their bills for electricity, and in some way help make the environment safer while saving on non-renewable sources of energy. You need some knowledge before taking your various tools and purchasing your other needs for making a wind generator.

Whether you are installing a self-made or a commercial generator, you need to make sure you have the optimal location for it. You will need a place where trees and buildings are not obstructing the air flow.

If you happen to be living on a farm, obstacles probably aren’t a factor and the view of your neighbors is no concern. However when you live within the boundaries of a city, it can be a lot more difficult to install a wind generator.

The wind towers are so tall that they can be dangerous in storms and high winds, so this could impact the community. Consult not only your local authority but also your neighbors before putting one on your property. Of course you always need to consult for the county or city codes.

You have a few choices for the exact spot for your wind tower. The top of your house could be a great location or if you own enough land you can set the tower away from the house. In a small town, numerous wind generators can be installed in a common area for the whole community. So everyone can benefit from lower utility bills, and you do not have to worry about the towers getting blown over in a storm.

You could also look into other forms of renewable energy to run your house. If you have enough sun in your area, consider installing solar panels as a back up for your wind generator.

You can read more from Steven C. Jones on his blog about wind generators and renewable energy.

Article Source: EzineArticles

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Solar Heaters

May 25, 2009 By: Admin Category: Solar Heater

Solar Heaters for Swimming Pool – Enjoy Swimming in October

Executive Summary about Solar Heaters by Tanya Turner

Are you thinking about buying a swimming pool heater? A very cost effective option would be getting a solar heater for swimming pool.

Solar heater for swimming pools – how does it work?

Unlike other types of solar powered devices, solar pool heater works rather simple. Solar panels collect heat from the sun. A pump forces water from your swimming pool through a filter that leads it into a solar collector. The size of a swimming pool heater you need depends on the size of your pool and the climate in your area. For bigger pools and colder places you need bigger solar heaters. Heaters with 2′x20′ panels are the most popular. For bigger pools you will need more panels.

Installing your solar pool heater

Unlike solar water heaters, pool heaters are fairly easy to install.

Maintaining your solar heater for swimming pool

Getting a solar heater for your pool makes much more sense than getting any other type of pool heater including gas and electric heaters.

Pool Solar Heaters – How to Build Your Own Pool Solar Heater
Executive Summary about Solar Heaters by Benjamin Robert Ehinger

Here is a plan to put together your solar heater.

First, you are going to need about 150 feet of long black tubing that is about a half inch around to three fourths of an inch around. You will also need about 10 feet of PVC pipe that will fit snugly into the ends of the black tubing. you will need a shut off valve that will be attached to one end of the PVC piping. You will also need a pump that will be strong enough to move water through the tubing at a slow speed.

Second, you are going to need some 2 by 4 pieces of lumber and some metal brackets. You will want to mount this part of your heater on a rooftop that is in direct sunlight, a shed, a barn, a garage, or anywhere else that is in direct sunlight.

Last, you will run the PVC piping from each end of the black tubing into the pool. When you turn the pump on it will suck water out of your pool at a slow speed and pump it up and through your black tubing, very slowly. You want this water to be sitting in the black tubing and getting hot. Then, when it comes back into the pool it will start to raise the temperature of your pool. This is now your solar pool heater.

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Solar Installation

May 21, 2009 By: Admin Category: General

Solar Panel Installation – How to Do It

Executive Summary about Solar Installation by Gio Rigt

Make sure you choose the perfect location for you solar panels. Nothing should block the solar panel from receiving sunlight. A little bit of shadow blocking the panels reduces the amount of energy the solar panel produces tremendously.

Place the posts first and attach metal rails to the posts on your roof. Attach solar panel mounts to the solar panels, the roof-ground mounts will suffice.

After installing the solar panels, connect them to the inverter. When it comes to inverters, the synchronous solar panel inverter is the best affordable choice.

The solar energy is stored in a battery, excess energy is sold back to the utility company. If there ever is a situation where you do not have enough energy for your house, the utility company will supply the energy through the solar panel converter.

You are done with your solar panel installation.

Solar Panels – Professional Installation Vs Do-It-Yourself
Executive Summary about Solar Installation by Tina Metcalf

There is a product available on the internet called Earth for Energy. For about $40, they will send you a PDF or Adobe file with information on how to make or build your own energy efficient green devices.

Supposedly, for a fraction of the retail costs, someone should be able to construct windmills, solar cell panels and other green related things to either augment your electrical consumption, or ultimately, get yourself off the grid completely. Thinking efficiency all around, it would be so much easier, and in the long run cost effective, to find reputable dealers that build and manufacture green technology, like solar cell panels.  My thought is this; go with a local solar installer (like Cooler Planet), let them sweat the details, add on a little at a time as your budget allows, and enjoy your life.

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