An "insulating" window is simply a window with two panes of glass separated in the frame by about a half-inch of air space. The air space acts as the insulator, retarding thermal transfer through the window. The insulation value can be enhanced by special coatings on one or both panes of glass and thicker air, such as argon or krypton, sealed into the airspace.

Energy efficiency plays a central role in building any new custom home. Building a "green" home, however, requires energy efficiency and much more. This article will help guide you through some of the basics.

"Green building" means taking a comprehensive approach to energy and resource efficiencies from design through construction and even operation of the house. Certain aspects of a home's construction contribute greatly to the success of any green project.

Windows, doors, and skylights, in particular, have a critical impact on a home's ability to conserve energy, reduce moisture intrusion, and keep utility costs low. Like the small vent pipes in a roof, they are penetrations.  Today's home are well sealed but keep in mind these penetrations are much larger and more widely distributed.

Studies show that the average new custom house has more than 20 windows and doors, each a potential avenue for outside air and water. In the recent past, windows and doors were not much better than open holes in the wall. Thin glass, weak frames, no insulation.  They were designed to bring useable daylight into the home, provide views to the outside, and allow passive (or non-mechanical) ventilation in warm and humid climates. In order to keep their homes reasonably comfortable in cold seasons, our ancestors kept windows and doors to a minimum.

Fortunately, today's windows and doors are designed to enhance a home's energy performance. Though still relied upon for passive ventilation and views, windows and glass doors are now insulated in both their frame and glass design. High tech window construction and specially treated glass can reduce glare, unwanted solar heat gain and damaging ultraviolet radiation, which can fade rugs, floors and upholstery. Windows and skylights can also be designed to increase passive solar heating, reducing the amount of costly energy needed by the furnace.

Energy-conscious home owners can now choose among a variety of options in order to precisely match windows and doors to the seasonal climate conditions of their home's location. Depending on where you live, to optimize the overall thermal performance of the house, windows and doors can also be selected according to which side of the house they will be installed. For example, south and west-facing windows can let in more solar energy than north and east-facing windows.

In addition to enhanced glazing options, new wood-based window and door frame materials are engineered to resist warping, thus minimizing the small gaps between the window or door and the wall that may develop over time. No more breezes in the winter near the windows!  In better quality vinyl window and glass door frames, the hollow cavities should be insulated to boost their effectiveness.

Take the care to select the best windows and doors for your new home. Find knowledgeable suppliers and trained subcontractors to ensure not only high quality products but also proper installation that will maintain the design performance values of the window and door products used.  

Windows, doors, and skylights play an important role in any home's appearance and overall energy performance. In a green-built home, they are critical elements in a range of integrated design and construction approaches that help reduce a home's energy use and operating costs while increasing indoor comfort and air quality. 

Solar power is the process of using the light from sun and turning it into an energy source. It has become a reliable alternative to regular power sources in remote areas. It has even been used in outer space. 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 panels are designed to collect the power from the sun.

Once solar energy is collected by the solar panels it has to be converted into energy. This can be done by a process called solar thermal application. It involves using the energy from the  sun to directly heat air or liquids. The process of photoelectric application involves the use of photovoltaic cells to change the energy into electricity.

Solar power poses no harm to the environment. However, other threats to the environment may affect the ability to use solar power in the future. Global dimming is the result of pollution. It allows less sunlight to reach the surface of the Earth. A recent concern is global dimming, an effect of pollution that is allowing less sunlight to reach the Earth\'s surface. Global dimming is caused by pollution particles and global warming.

The Solar Electric Power Association is an organization of electric utility companies and the solar industry. They joined together to find solutions to meet our  energy needs. SEPA is a network of more than one hundred companies. Fifty are utility companies, twenty five are solar companies, and the rest are various types of businesses. They share experiences, knowledge, and information about solar programs, They also discuss policies and technology relating to their field.

Is solar energy right for you? There are advantages to using this as a safe alternative to fossil fuel. Solar energy is free. It can be used in areas where electricity can’t be set up easily. The sun is not a resource that is going to be depleted. Disadvantages are that it doesn’t work at night. The cost of creating solar power stations to store such energy is very expensive. In some area of the world, solar energy just isn’t an option because the climate does not receive enough sun light.