Passive solar energy is one of the best ways to conserve energy in your home. Lest you think that you have to demolish the whole house just to make it part of your house, you have another think coming. Actually, you only need to install energy efficient windows to enjoy the energy and non-energy benefits of passive solar energy. Well, of course, you may have to deconstruct windows but the benefits will definitely be worth the time, trouble and dollars spent on the project.
DIY or Professional
And speaking of dollars, you may want to install the windows yourself so as to save on the costs. This is all well and good if and when you have the necessary skills, techniques and tools to undertake the job on your own.
However, if you are not in any way qualified to make the window installation project on a do-it-yourself manner, just refrain from doing so. You will only be bringing grief unto yourself - jagged walls, broken windows and personal accidents, all of which will boil down to greater costs when you have aimed to lower your electricity bills.
Instead, you should contact a skilled professional to do the job for you. Keep in mind ...