The High Costs of Solar Electric Power
Executive Summary about Solar Electric by Klaus H Hemsath
Promotion of solar power generation is booming. Why are solar farms built when financial data clearly show that solar power is still the most expensive electricity generation technology available?
Solar power plant developers and marketers obviously know that they need to lower costs. Cost reduction is, however, expensive and takes time. There are two major technologies for solar energy conversion. Electricity production with steam is a very mature technology. The other technology is the direct, photovoltaic conversion of sunlight into electricity. This technology will most likely become the dominant solar electric power generating technology – eventually. The concentrated sunshine creates very high surface temperatures on the solar panel. To save solar panel area and make the solar panel price competitive, one must cool the surface of the solar panel very efficiently to prevent it from melting and destruction.
Present production costs for generating electricity with solar panels are hovering around $0.50 per kWh. Right now, solar power does not yet make economical sense.
None of the available technologies using renewable energy can compete with the cost of electricity generation from coal.
The technologies for generating electricity with solar power, wind power, marine power, and geothermal power are very well understood. At present, a respectable number of windmill farms and solar panel farms are being installed. Solar power does not make economical sense, yet. A random sampling of recent announcements of solar farm installations reveals that system installation costs are in the $3000 to $7500 per kW installed capacity. These plant costs loosely translate into a cost of producing electric power at $0.30 to $0.60 per kWh. This very unfavorably compares to the cost of electricity generation by any other technology.
As long as solar power constitutes only a very small fraction of overall electric power generation, the additional costs of storing intermittently produced electric power are not yet of concern. If the US is going to depend significantly on the intermittent production of electricity from solar power and wind power, it must begin to develop storage technologies for huge amounts of electric energy. Intermittent, renewable energies and electric energy storage are inseparable.
The Solar Electric Panel – An Inexpensive Way to Generate Electricity
Executive Summary about Solar Electric by Dan A Swanson
The solar electric panels, generally called solar photovoltaic panels, are made of a set of treated silicon cells arranged in a series array. They produce electricity on being exposed to the sunlight. A small solar electric panel will lessen the energy bills considerably, while a big solar panel will in fact budge the meter backwards. The contemporary solar electric panels are simple to install and are modular. The solar electric panels transform the sunlight to DC (direct current) electricity. Buy any of these solar electric panels according to your requirements.
Solar electric panels are the perfect answer to our increasing electricity bills and ever increasing reliance on depleting conventional energy resources. Make a one time investment in solar panels and generate free electricity for years to come. Solar electric panels are the need of the hour.
Beach Ball by Tony Leung
Beach Ball designed by industrial designer Tony Leung, is the concept of solar energy generating system in Abu Dhabi between Saadiyat Island and Yas Island. This system has a photovoltaic panel that is contained in the inflatable transparent latex material.
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Home Solar Panels
Executive Summary about Home Solar Panels by Valt Jones
Home solar panels are the desirable solution for anyone willing to substitute the polluting energy created by fuel-supplied energy plants with green and renewable source of energy. Home solar panels can either turn sunlight into electricity or hot water.
Home solar panels are smaller and inexpensive nowadays, while the rewards have grown exceedingly. Installation of home solar energy systems has become its own licensed specialty performed by licensed home solar contractors. These solar panels are the most consistent source of harvesting energy for residential solar power generation, doing better than the solar cells of previous decades. Marine and RV solar panels and specialty items, such as Powerflex flexible and portable solar panels, are also available.
You will require less home solar panels to collect the necessary energy if the sun is shining often. Home solar panels are generally designed for high voltage grid-connected systems, although they can be used for battery-based systems too. Solar panels that use single crystalline solar cells offer among the record efficiencies obtainable on today’s commercial market.
Home Solar Panels – 5 Benefits of Building a Cheap Solar Power System
Executive Summary about Home Solar Panels by Garry Jones
Earth’s fossil fuel reserves are rapidly diminishing and the price of energy is skyrocketing. More people are turning to free alternative sources of energy and many are finding great success with building home solar panels. In this article we will analyze some of the benefits of building home solar panels.
- Professionally built home solar power systems can cost thousands of dollars.
- With ever increasing utility bills resulting from higher fossil fuel costs the savings from home solar power systems quickly build up.
- Unlike fossil fuel systems home solar panels operate pollution free.
- Many municipalities and States offer incentives in the form of tax credits and rebates to help offset the cost of alternative home energy systems.
- House prices have fallen recently.
Join the tens of thousands of homeowners who are building home solar panels and reaping huge savings on their energy costs. Fossil fuel prices will continue rising, solar power will always be free.
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Solar Energy Applications
Solar energy technologies use energy from the sun to produce heat, light, hot water, electricity, and even cooling, for homes, commercial and industrial.
There are a variety of technological applications that have been developed to take advantage of solar energy. Technology can be read further below.
Solar cells work by converting sunlight directly into electricity. The electrons in the semiconductor material, the material used to capture sunlight, will move when the sun’s energy in the form of photons hit it. Solar energy is forcing the electrons to move, occur continuously, and consequently there is also a continuous electricity production. Process, which turns sunlight (photons) into electricity (voltage), called the photovoltaic effect.
Solar Cell Module
Solar cells are usually organized into modules that each module can consist of 40 solar cells. Some modules can be arranged to form a PV line fitted with a fixed angle facing south. Or even could be placed in a sun-tracking device, to get more solar energy throughout the day. Several rows of PV could produce enough power for a house. As for industrial applications or power companies, hundreds of lines of PV can be linked to form one large PV systems and sufficient to meet the electricity needs.
Thin Film Solar Cell
Thin film solar cells use several layers of semiconductor material with a thickness in the micrometer scale. Technology allows to create solar cells integrated into rooftops to the skylights. Even solar cells are designed for applications having the same power with actual roof.
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British Petroleum – Solar Products Manufacture
Executive Summary about BP Solar by Richard Chapo
British Petroleum was once known for their petroleum products. How times have changed. BP is now one of the biggest producers of solar products.
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Solar Thermal Power Plant from Google
In recent years, Google invest in green energy sector seriously. More than US$ 250 million invested by this company and there is no clear information about why the company’s biggest search engine in the world invest in this sector in addition to its commitment to encourage and develop green energy more quickly.
Google company may not only “simply” investing. The company has a team that is able to analyze and predict the future of this sector.
This time Google reinvest US$ 168 million in a solar thermal power plant located in the Mojave Desert, southeastern California, USA.
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Space Solar Power System
Like the story of a fictional movie, but Japanese space agency plan so serious: In 2030 they will capture solar energy in space and sends it to Earth via laser or microwave.
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Top 5 World’s Largest Solar Power Plants
1. Olmedilla Park Solar Power Plant
(in Olmedilla de Alarcón, Spain, 60 MW) Finished in September 2008. This power plant uses 162,000 average photovoltaic solar panel to deliver 60 MW of electricity on a sunny day. The whole factory was completed in 15 months at a cost of about 530 million U.S. dollars current exchange rate. Olmedilla built with conventional solar panels, which are made with silicon and tend to heavy and expensive.
2. Puertollano Park Solar Power Plant
(Spain, 50 MW) in 2008 Renovalia develop the power station in Puertollano, Ciudad Real, residential energy parks with an installed capacity of 50 megawatts (MW). The power generated here is equivalent to the annual domestic consumption of electricity of about 39,000 households. The energy produced here will replace the theoretical disposal 84,000 tons CO2/year or 2.1 million tons of CO2 over 25 years during the production.
3. Moura Solar Power Station
(Portugal, 46 MW) Completed December 2008. This solar power plant is placed in the municipality of Moura, Alentejo, Portugal, one of the sunniest areas in Europe and besides one of the most economically depressed. The construction involves two stages, first with a built in 13 months and completed in 2008, and the rest will be completed in 2010, with a total cost of € 250 million for the project. The power plant will have an installed capacity of 46 mwp, by more than 376,000 solar panels. Nearly 190,000 panels (32 MW) installed in permanent structures, 52,000 (10 MW) in a single-axis trackers, which follow the sun in the sky, and further 20 MW of power capacity will be added during phase 2 project. This will occupy an area of 320 hectares (130 acres), producing 88 GWh of electricity per year.
4. Waldpolenz Solar Park
(Germany, 40 MW) 550,000 First Solar thin-film CdTe modules. Completed in December 2008 Waldpolenz Solar Park, which is the world’s largest thin-film photovoltaic (PV) power system, built at a military air base east of Leipzig in Germany. The power plant 40-megawatt solar power system using state-of-the-art thin film technology. 550,000 First Solar thin film modules are used, which supplies 40,000 MWh of electricity per year. The investment costs for solar parks Waldpolenz Euro 130 million.
5. Arnedo Solar Plant
(Spain, 36 MW). Completed in October 2008, power plant that produces 34 GWh per year, which would own 12,000 households and prevent 375,000 tons of CO2. Facilities in seven acres and 172,000 panels houses. Project budget of about € 180,000,000. La Rioja, a region of Spain known for its wine, already covers 62% of electricity with enhanced resources.
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What Is So Fascinating About Solar Pump
Solar-powered water pumps are an effective alternative to conventional gas or electric pumps. Modern pumps are powered by solar energy effectively in the world, including India, where they are often used for irrigation and drinking water.
The main advantage of solar pumps is that they work for free. A solar array connected to the pumping mechanism gains all the required power from simple sunshine. This also means that the system independently. There is no need for complicated wiring for the electricity and outside fuel is not needed.
The amount of pollution caused by the use of conventional pump has also completely eliminated. This is a big advantage, especially when used for irrigation on the farms where pollution can possible on site damage. Keeping the fossil fuels from the equation for the pumping of water will reduce potential contamination. In addition, the use of solar energy offers many benefits for agriculture, the farmers, for example, a solar pump used in an area of low-lying, which often flooded or to move the water used to feed animals and plants.
For any system of water pump, both large and small, the installation of solar systems is one of the easiest and most profitable. No long procedures for determining the wiring of the solar panels, and there is no need for extra fuel. Many of these systems, also the digital monitoring and control instruments adding for convenience.
Worldwide, the solar energy is one of the best ways of powering pump instrument. Simple installation, low maintenance, and reducing pollution are just some of the many benefits.
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Grid-connected system was applied to many urban areas housing, existing electricity network. The purpose of using solar panels, to save the cost of excessive electricity consumption and help reduce the greenhouse effect caused by the use of fossil fuels which cause excessive air pollution. Electrical energy which is in turn, channeled into the electricity networks that already exist and can be stored in the electricity network. This term is called the Hybrid System, which combine solar power plants with electricity network. Solar systems can also be combined with other power plants such as PV-Generator Hybrid, Hybrid PV-Microhydro, Hybrid PV-Wind and can even be combined into 3 systems of different power to Hybrid PV-Wind-Generator.
The following illustration application of grid connected systems in housing
1. Solar panels installed at suitable locations to generate optimal power.
2. Inverter (Controller) function to change direct current (DC) produced by PV into alternating current (AC) that can be applied to household electronic equipment.
3. Box distribution function to distribute the AC current through the PV generated electricity network.
4. Discharging the burden of household air-conditioning system.
5. Electric meter show the current of electricity network will b
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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
- 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
- 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.
- 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.
- 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.
- Ready to use to set the lights, tv, radio, etc
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