The efficiency of terrestrial solar energy conversion to electricity depends on their efficiency and the annual number of sunny days. 20 years ago the efficiency of silicon solar cells was equal to 15%. The efficiency of today’s GaAs element with three transitions is 34%, while promising devices with four conversions will probably be of 42% (theoretical value of the efficiency of four-element reaches approximately 50%). Today, 1 kg of solar panels provides 300 Watts. Capital cost for the panels of solar cells production has decreased from $ 50 to $ 5 / W in comparison to 80s, and the cost of energy consumption dropped from 0.9 to 0.2 $ / kW • h.

To overcome the dependence on weather conditions the project of creation of space solar plant located on the HIS, was advanced in the late 70′s, with the transfer of power to Earth using microwave radiation to Rectenna (that is antenna with built-in rectifier). The project was being elaborated on all components of the system, but has remained as just an interesting suggestion: although the station would be able to transfer 10 GW, which is equivalent to the output power of 10 nuclear power stations, the cost of the components raising on the satellite would have been $ 22 / g, and the mass of the satellite would have been 90 tons. Today, the picture changed. U.S. experts proposed major developments of such plants in the 35th Conference on Energy Conversion (IECEC) in July 2000.

According to these experts, new technology involving the use of high-performance solar cells, high-power semiconductor converters and magnetron generators, is capable to reduce the mass of the station significantly. Reusable transport aircraft invented by NASA, will reduce the cost of the components lifting into low Earth orbit to $2,2 / g (that is to say, in future it can reach 88 cents / g). Satellite solar power can be raised from low Earth orbit to geostationary one with the ion engine, fed by solar panels. The concept of an integrated symmetric concentrator (ISC) will reduce the mass of the controlling and power distribution system on the satellite, which constitutes a significant proportion of the mass of the whole station.

Be smart and use the aid of solar power grants to convert your life to enhanced ecological balance with nature. Read about solar power grants, how to make proper use of them and where you can get these solar power grants.

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The candidate from the progressive forces Professor Minobe won the elections of the capital governor under the slogan “For the clear sky over Tokyo!”. And he really kept his promise: he made sure that Tokians caould admire the sacred peak of Mount Fuji not less than once a week. And fish reappeared in the Sumida River that flow through the town.

With the steady growth of its productive capacity, Japan is making every effort to comply with its obligations under the Kyoto Protocol: to reduce greenhouse gas emissions by 6 percent in comparison to 1990 levels. We can speak about the following achievements in the topic when speak about Japan: for every million dollars of gross domestic product growth, harmful emissions into the atmosphere are 263 tons in Japan, while they are 606 tons in the United States and 2,538 tons in China. And above all – this is the result of “green energy”, the introduction of alternative sources of clean energy.

Surprisingly, but the state that had experienced the tragedy of Hiroshima and Nagasaki is among the leaders of the Peaceful Uses of Atomic Energy. In 70`s, Japan enacted 55 nuclear power plants, which produced more than a third of all energy consumed in the country.

Almost two-fifths of Japanese nuclear power plants have been operating during last 30 years. Some of them had failures, even with human victims. And once, the threat of radioactive contamination forced the evacuation of 200 thousand inhabitants in a radius of 10 kilometres.

There were also some warnings about the alarming fact that as a result of reprocessing of spent fuel, 8 tons of plutonium can be gotten. And this, as they say, is enough to make about thousand of nuclear warheads. But nuclear energy in Japan develops, playing in the life of the country equally significant role as it is in France.

Solar panels on the roofs
Japan is called as the Land of the Rising Sun. Its national flag is a red circle on a white background that embodies precisely this poetic metaphor. But the Far Eastern archipelago has earned another name. Japan becomes a land of the solar energy rising. After all, its share accounts now for about half of the installed capacity of all the world’s generators, which use sunlight. The share of the United States and the European Union is about one-fifth each.

In Japan, solar power is developing with the active support of the state, with the use of budgetary subsidies. And it is being pushed by its leading corporations in the field of electronics and high technologies. These companies have succeeded in the production of computer chips on the silicon basis.

It is a real gift that we live in the times when the ruling elites start to realize the value of living in harmony with the nature on this planet. And solar power grants is a realistic proof of it. If you want to make a switch to solar energy, please find out more about how solar power grants and how exactly you can exploit these solar power grants for your living.

P.S. Good information makes life easier.

That is why if you are properly armed with the knowledge in your topic you can rest assured that you will in any case find the way out from any bad situation. So, please make sure to get back to this site on a regular basis or – the easiest way to take care of it – sign up to its RSS feed. Thus you will have a direct shortcut to the latest info updates here. Blogging can be helpful, you just need to understand how to use it.

Scientists estimate that hydrocarbon fuel will remain on the Earth during next 60 – 100 years, but it is a promising issue. At the moment the relevance lies in the fact that modern forms of energy change environmental conditions on the planet intensively, and unfortunately these changes are negative. The changes have become irreversible, and this often leads to casualties. Today the world uses over 12 billion kWh of energy annually. Such percentage is in materials using for energy production as: coal – 26 %, gas – 20 %, oil – 42 %, water energy – 4 %, nuclear energy – 5 %, and this leads to emissions of hundreds of thousands of tons of harmful substances into the atmosphere. As we see, we get most of the energy from fossil fuels.

Nuclear energy, which was considered recently as no alternative source of future, is almost at the top of the list of negative impacts on the environment due to constant threats of radioactive substances releases and as a consequence of long-term large adjacent territories pollution. Statistics show that almost all the energy is produced from minerals, and this makes 97%. And what is included in the other 3 %?

This is alternative energy – solar, wind, geothermal, installations that use the force of the tides etc. So the more and more attention and money are invested in innovative clean energy all over the world. The possibilities of solar energy converting into electricity` research and application in practice are being conducted extensively at this time.

Solar energy is the most environmentally friendly one and has infinite resource stock. Viability of this type of energy is confirmed by multimillion-dollar investments of oil giants such as UK-Dutch Royal Dutch / Shell Company, which has its research and development of alternative energy. It is going to invest amounts between $ 500 million to $ 1 billion annually in solar energy. Silicon is used for manufacture of solar cells. Because of the high cost of this material production, the first batteries were unprofitable. But we know that the progress does not stand still and every year the cost of it significantly reduces.

As for now, the payback of solar panels is more than 20 – 30 years, and the cost of 1 kW / m power obtained with the help of the sun’s rays is higher than that obtained from traditional energy sources. But solar energy is fully competitive in remote places or sites where electricity consumption is relatively high.

Be smart and use the aid of solar power grants to convert your life to enhanced ecological balance with nature. Read about solar power grants, how to use them and where you can find these solar power grants.

P.S. Good information quickly enhances the quality of our life.

That is why if you are properly armed with the knowledge in your sphere of interest you can be sure that you will always find the way out from any bad situation. So, please make sure to track this blog on a regular basis or – best of all – sign up to its RSS. In such an easy way you will have a direct shortcut to the freshest info updates here. Blogs can be helpful, you just need to know how to use it.

Because they use no double but single-glass, pipe wall thickness is increased on 0.5 mm, and it may withstand falling hail of 35 mm without prejudice.

With highly selective absorbent layer such pipes perceive diffusion light, and this means that they will work, even if the sky is overcast, they just loose productivity a little. They are ready to work immediately, as soon as the surface will be fallen with sunlight, and just 3-5 minutes later the temperature at the tip is raised to +100 ° C (maximum – up to +300 ° C). Performance of SV-pipe is about 85%.

Tubular Solar systems supply homes with hot water excellently. They heat swimming pools and greenhouses, make ventilation, air conditioning and heating of buildings work. Depending on the characteristics of the building solar collectors can be installed:

• on a sloping roof;
• on a flat roof or horizontal surface near the house;
• on a sloping wall, oriented to the south;
• be mounted directly to the roof.

The cost and accounting of the system
The cost of a solar collector installing exceeds the cost of equipment for the traditional heating and hot water, but the economic benefits of such solutions are obvious; if we take into account the constant increase in energy costs (for the last two years, gas has risen in price by 300%, and it is possible that we will pay for it at very high prices soon.

Systems are installed on a turnkey basis, that means that their value includes the cost of equipment and work that does not quite belong to the solar system itself, but which is essential to its normal operation (such as installing of battery tank and its binding). On the other hand, setting the heating boiler, the owners also have to pay for its installation. Another argument in favor of solar system is their long life. Solar equipment is very reliable – there are no moving parts, and therefore there is nothing that may break. Manufacturers guarantee that it will be successfully operated for 25 years. For comparison: the electric heater works about 6 years at home, and the boiler works 10 years in average (but you will need to replace the burner so that CPA not fall).

And operating costs are not comparable: Vacuum Solar systems require no maintenance (except the case when you will have to wash it if there is very strong dust). Boilers need to be continuously monitored. You must change the burner periodically, and heating elements in electric boilers. If the boiler runs on gas, you will have to deal with the gas department.

So, it might be not the worst idea to install the solar system in your household.

It is a real gift that we live in the times when the ruling elites start to understand the value of living in harmony with the nature on this planet. And solar power grants is a real case proof of it. If you want to make a switch to solar energy, please find out more about how solar power grants and how exactly you can use these solar power grants for your living.

P.S. Good knowledge makes life easier.

That is why if you are properly armed with the knowledge in your sphere of interest you can rest assured that you will always find the way out from any bad situation. So, please make sure to track this blog on a regular basis or – best of all – sign up to its RSS feed. In such an easy way you will have your hand on the pulse of the freshest informational updates here. Blogs can be helpful, you just need to know how to use it.