Passive Solar Energy Is Cost Effective
May 9, 2010 by admin
Filed under Solar Energy
Passive solar energy is one of the most cost effective ways to heat a structure once it has been built.
Although adding passive systems to existing structures can get quite costly, many people still feel the benefits outweigh the financial drawbacks. These benefits can be seen when building a passive system that includes remodeling features which are also aesthetically pleasing.
The most effective passive systems involve large windows which allow the sun in during the cooler months and are shaded in the warmer months. Usually the windows are slanted at an angle which allows maximum solar energy to land on a concrete floor and then collect and radiate the energy inside the structure.
Often these passive solar energy systems are designed into structures before they are constructed but sometimes, if the location permits, existing structures can be successfully modified into incorporating a successful passively heated solar energy system.
Some of the more notable passive systems include rammed earth homes with long structure length banks of windows. The orientation of the entire structure is such that the sun will be shining through these windows in winter, but not during summer. This is also true with a number of different styles of dome structures.
Monolithic domes, earth bag domes, cob and reciprocal framed roof domes are all quite easily adaptable to passive solar systems when it’s considered during the design stage and implemented during construction.
All of these structures are well insulated and have thermal masses which are kept at relatively constant temperatures, this then requires far less energy to heat and cool. These designs take much more advantage of passive solar than an existing frame and drywall house is going to. Even with good windows and a concrete floor.
Sometimes, when deciding to switch over to a life with passive solar energy is worth reevaluating the entire lifestyle and the types of homes and locations involved. It is often much more effective to come to the decision to completely change a traditional house into a more sustainable house which lends itself to using passive solar more effectively.

