Solar Panels Solar Energy

Solar energy's disadvantages can be pretty well boiled down to one thing: cost, at least for using it as electricity. It takes a lot of land and costs a lot of cash to be worthwhile, as most types of solar cells require large surface areas to achieve average efficiency, and the silicon used in many of today's cells is also very expensive. Solar energy and shading are important considerations in building design. Thermal mass is used to conserve the heat that sunshine delivers to all buildings. Solar energy technologies offer a clean, renewable and domestic energy source.

Solar panels producing solar power is energy generated from the heat or light from the sun. Solar power, also called solar energy , can be used to produce heat, light, hot water, electricity, and even cooling. Solar power is becoming much more widely available for the home consumer and as a consequence solar powered lights and solar powered features can be seen in many gardens and even in houses but often they have their limitations. Nevertheless solar power is still a viable energy source for your home and personal needs. Solar power is reliable and efficient, now more than ever.

Solar power is used in homes, lighting, architectural projects, and cooking. It has become even more popular as the cost of fossil fuel continues to rise. Solar power is clean power. Solar energy is the future, and the future is now . Solar power is pollution free during use. Production end wastes and emissions are manageable using existing pollution controls.

Solar energy is light and heat energy from the sun. Solar cells convert sunlight into electrical energy. Solar energy can also be used to meet our electricity requirements. This electricity can either be used as it is or can be stored in the battery. Solar energy has existed for five billion years, since the sun was born. And humans have been using solar energy for thousands of years.

Solar energy’s potential is off the chart. The energy in sunlight striking the earth for 40 minutes is equivalent to global energy consumption for a year. Solar energy systems can be divided into two major categories: photovoltaic and thermal. Photovoltaic cells produce electricity directly, while solar thermal systems produce heat for buildings, industrial processes or domestic hot water.

Sunlight can reach the Earth?s surface with a maximum intensity of more than 1,000 watts per square metre. While the total household rooftop area in New Zealand is exposed to solar energy that equates to about twice the total national energy use, the resource is relatively low in intensity for much of the day, and available only intermittently. Sunlight reaching us directly from the sun at naturally safe levels poses little fire threat. But all one has to do is concentrate sunlight, with a simple burning- glass, and it readily ignites combustible materials.