Trombe wall
Using the sun's stored energy to heat your home reduces your conventional energy consumption.
Historic preservation
Older homes can benefit from energy efficient remodeling techniques.
In this video: A preservation expert shares how to restore an older home economically and energy efficiently.
More from this category
Energy efficient kitchen remodel
This kitchen remodel features a new window, energy-efficient lighting, new appliances and side-wall insulation.
Insulated concrete forms
An insulated concrete form (ICF) system eliminates the cold drafts typical of wood-frame construction.
Finding an energy-smart builder
An energy-smart builder will help you make the right choices for your family and lifestyle.
Modular homes
Modular homes are built in a factory under controlled conditions, then shipped to the homesite and placed on a permanent foundation.
Choosing energy-smart products
When building your new home, don't forget about the importance of energy-conserving products like furnaces, air conditioners and appliances.
Structural insulated panels
Structural insulated panels, also called SIPs, foam-core panels or stress-skin panels, are significantly more airtight than stud walls.
Geodesic domes
A geodesic design uses interconnected triangles to create a strong, environmentally friendly structure.
Net Zero Community
Check out a new neighborhood concept and see how one builder is changing the way homes are built with a goal to use zero energy.