Energy Efficiency

With the help of energy-modeling software, a pair of architects prove that well-designed, functional, and predictable performance is possible on a budget.by Doug Zaun

“Use less energy” is the mantra of a stringent German building standard that’s catching on.by Jefferson Kolle

With a balance of conservation and renewable production, these houses make as much energy as they useby Scott Gibson

A builder’s home unearths the benefits of geothermal

Whether you build new homes or remodel, these alternative framing techniques will allow you to reach R-40 or better.by Bruce Coldham

Used to building big houses with big budgets, the Picton brothers earned a platinum rating with their first modest green home—but mastering the learning curve wasn’t always a smooth rideby Jim Picton, Mark Picton

In New York state, a new house combines compound curves and energy-saving detailsby Kurt Ofer

With stricter energy requirements and improved light technology, we all may be switching to CFLs and LEDsby Sean Groom

They’re one of the most important—and expensive—parts of a house. We help you sort through the materials, styles, and ratings that will influence your choice.by Sean Groom

Defined by a mosaic of indoor and outdoor spaces, a new house tames the sun and adapts a traditional Southwest style for an established neighborhoodby Murray Silverstein, Barbara Winslow

A new family room and master suite, improved entries, and an updated building envelope saved this home from the wrecking ball, againby Michael Klement

21st-century technology and a classic look come together in a shingle-style house that produces more energy than it consumesby Bill Heigis, Hobie Guion

An architect highlights the hallmarks of a style that responds to its environment  by James Tuer

This home uses five systems to reduce its environmental impact, lower its operating cost, and improve its connection to the landby James Tuer

A forward-thinking homeowner invests in a highly efficient HVAC system that includes photovoltaics and a noncombustion furnace

Requirements: 1 metal roof, 2500 gallons of rain, and the desire to save the planet

A video introduction to Portland's Green Homes Tour + Info Fair

Designed with reused materials, this entry for an active family makes use of every inch of space with hooks, cubbies, and lockers

Get an in-depth look at a near-zero energy house featuring recycled materials and solar-heating and rainwater-harvesting systems