In our energy efficiency series of articles featured each Thursday, we provide strategies or information on how to make your new home energy efficient and comfortable.

How much do our buildings really contribute to greenhouse gas (GHG) emissions? The answers may be surprising.

Over 50% of all GHGs in the U.S. come from our homes and businesses, and over 40% of the country’s energy consumption goes toward powering those structures. Contrast that with the 28% of energy consumption for cars and other transportation, and it’s clear that our homes are expending energy resources at an unacceptable rate.

So what’s greener? Building a new house or renovating an old one? Both are worthy endeavors, but with many existing homes using twice as much energy as they should, home improvement edges out new construction.

However, that’s not the only reason it’s greener to upgrade your existing home. New homes need new infrastructure, including roads, sewage lines, electrical lines and street lighting – all entailing more expenditures of energy. In addition, new homes require the production of new materials, while materials from existing homes are generally recyclable.

What’s greener for your pocketbook? The answer may be both. Homes with a significant number of green features can sell for up to 30% more than traditional homes – either for new or existing homes. In today’s down-turned housing market, green technology gives you a substantial advantage.

For homeowners planning to stay in their homes, the return on investment period is getting shorter, with many recouping costs in as little as three years. In their book, Green$ense for the Home: Rating the Real Payoff from 50 Green Home Projects, architect Eric Freed and Kevin Daum found that 45 out of the 50 retrofitting projects that they examined saved money in energy costs.

To discover which renovations bring the most savings, read the entire article from Calfinder…

Each Thursday, we will feature a blog entry about energy efficient new homes, covering a range of topics from building innovations to ratings systems to “score” your home’s efficiency. Subscribe to the DrummondHousePlans blog to make sure you get the latest news on how to make your new or renovated home energy efficient.