The Green Living Guy

Passive solar home energy. Living Green in Passive Solar Design

Over the past decade, passive solar home energy has become a significant player. Especially within both residential and commercial construction businesses. Thereby providing a viable option for alternative energies.

For passive solar home energy design has been used for thousands of years. Especially where the most obvious instances were. I mean and still are: the Mediterranean.

Passive Solar Home Energy 

Homes utilized this approach with consideration to home placement. For that’s ceramic and also stone building materials. Also size and shape of windows. Finally, even building depth. Interestingly using these parameters (which were put into effect thousands of years ago) serve as the basis. That for which current models use in the present.

Placement is Key for passive solar home energy

When evaluating the many aspects of a passive solar design model. Because most experts such as these home builders consider the placement of the home in relation to the path of the sun.  Especially to be of the utmost importance. This maximizes the use of solar power. All by positioning the home within a path relative to that of the sun.

Through home placement, solar cells can be more effective and obtain energy for a longer period throughout the day. The home’s placement also takes into account the use of natural surroundings. That’s as well as external home accessories to retain heat. Especially during winter months and keep cool during hot summer months. External home accessories may include things like retractable awnings. In addition to large soffits and also maneuverable shades. Most importantly, shades that are set on a timer to change with the passing of the sun.


As a general rule, the length of the home is spread in an east to west fashion. Thereby placing larger windows facing a southerly direction. Furthermore, placing smaller windows to the north.

The Rule for Cool

Venting is considered to be the second most important aspect. More importantly in creating a passive solar home. For this reason, it is very important to understand the flow of air through one’s home. By understanding air flow, one can determine the best place to open windows and exits to allow fresh air to flow in and hot, stagnant air to flow out. There are many types of building materials to consider using as well. For instance, some brick and stone have been specifically manufactured to absorb and retain heat during the daylight hours and release that heat at night when the air is cooler in general.

Solar Cells for passive home

Thirty years ago, solar cell technology was ruled out as efficient due to cost and their relatively little ability to retain the energy they could create. However, three decades later solar cells have become far less expensive, and batteries have evolved to allow for significant energy retention stored throughout the day. Placing solar cells on top of one’s roof has become the most common practice although if one has a large expanse of property there could be other places besides just the roof. When solar cells are placed on the roof, house placement again plays a key role in the efficiency of this appliance. By utilizing the east to west placement, one can find a solar cell package that will utilize the full path of the sun by moving with the sun or using a number of panels in a convex pattern along the ridge of the rooftop.

Alternative energy is proving to be a major player of the present and in the future. Solar energy and the solar passive design model have become one of the most reliable ways to utilize a renewable energy source. Advancements in solar panel design and structure will continue to push the passive solar design to the top of the list in both commercial and residential construction. By speaking with a professional versed in the solar passive model, one should be able to find many ways to utilize this efficient and cost saving measure to fit their particular energy needs.

Author Bio

Andrew is a student at the University of Melbourne for architectural engineering. He has a passion for all things sustainable. His goal in the future is to build homes that are clean and self sufficient thus reducing the structures carbon footprint on the world.

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