Pros and cons use of photovoltaics at the present time. Photovoltaic photovoltaic is a cheap alternative to purchasing conventional energies. This is especially the background be steadily more expensive electricity, gas and water. All citizens are dependent on energy and water that the party makes it easy to control the prices. But fortunately, there are ways to differentiate themselves from this. The photovoltaic among these is already matured technique, in which solar energy by means of solar cells is converted into electricity. Photovoltaic already in 1839 and was until now always improved, so that modern solar systems can already produce much power. Use of solar energy has many advantages.
Solar cells have become cheaper in the last years a lot. In 1990, the photovoltaic system costs still amounted to over 12 000 per kilowatt. Today, the price is already below 3500. Despite the massive price fall, this appears as much. However, solar cells over time are not only cheaper in the Manufacturing. Also the efficiency of the system has been improved. It is, depending on interpretation, already at around 15-20% making the plants not only more lucrative, but also smaller increases that the applications.
In addition, that the energy generated under certain circumstances receives a feed-in tariff. Photovoltaics the advantages of equity financing are covered with this after three to seven years the cost of the photovoltaic system. In return, the plant over several decades virtually free power produces. This pays off because photovoltaics can be used virtually maintenance-free one-time purchase and installation. In addition, it should be remembered that photovoltaics renewable energy and is completely carbon-neutral since no by-products and emissions arise. The conventional techniques of energy can do this in Germany, over 50% of electricity from fossil fuels will offer won – not nearly. The only thing that is required as a raw material, is that solar power – on Earth infinitely becomes available. The Central European countries own up to use perfect, as there are no temperature extremes. However, solar cells are dependent on solar radiation, so that on cloudy days only a lower efficiency is achieved. If photovoltaic worth the operator personally, this itself must decide. Homeowners belong not only as is often claimed to those who can decide for a photovoltaic system. Citizen solar power systems allow to invest in photovoltaic also apartment owners or tenants. But financial considerations should be not the only ones you should also but have in mind, you live not only cheaper, but I’m good and the environment.