The most common configuration of a ground-source heat pump has tubing laid in a horizontal trench--often as a series of coils.

Despite being highly efficient at turning kilowatt-hours of electricity into heat or chilled air, ground-source heat pumps have a significant drawback and usually aren't the best heating system choice.

I was at Efficiency Vermont's Better Buildings Conference in Burlington, Vermont last week. It's a great conference each February to learn about energy-efficient construction and find out about innovations in energy-conserving products, from lighting to heating systems.

Wandering around the trade show at Better Buildings, my attention was caught by several cut-away window corners at the Marvin Windows & Doors booth.

The Skystream 3.7 is rated at 2.4 kW in a 24-mph wind. This system is in Mullica Hills, New Jersey.

The 30% federal tax credit for residential wind turbines (with no upper limit) opens the door to scams, which could tarnish the reputation of the wind energy industry

Update: We have learned that SafeTouch was discontinued by Dow in spring 2011 due to poor sales. More detail in the comments below. We have confirmed that EnGuard polyester insulation, from Vita Nonwovens, remains available. – The Editors I gotta say, I was pretty surprised to come across this product recently. I make it a habit of keeping up with new products as they come out--especially insulation materials.

Over the years I've held a lot of job titles and have done most kitchen jobs, from cleaning a large supperclub's grease traps in mid-July after the obligatory upper-Midwestern Friday fish fry (I don't recommend that as a career path) to picking herbs and edible flowers from the garden that I'd use in lobster salads at a Relais & Châteaux restaurant (that was a pretty good job). So when I started writing the article Commercial Kitchens: Cooking up Green Opportunities for

This gird-connected, 2.52 kW PV system in Glastonbury, Connecticut, comprised of Evergreen Solar modules, was installed by groSolar, of White River Junction, Vermont.

Take advantage of these tax credits now, because they're unlikely to last.

I've been addressing tax credits for home energy improvements the past few weeks. This week, we'll look at what's available for solar energy systems.

We first wrote about TimberSIL from TimberSIL Products in a 2004 article in EBN, touting the company's treated wood as a revolution in the treated wood industry.

Five different glazing options, along with the option of having no windows, are shown here for a highly insulated house in the Boston climate. Shown are the annual combined heating and cooling loads. Energy modeling was done by Bruce Gough of Energy Building Group using the Minto Inspiration house as the baseline.

Why the 30-30 Requirement for Windows Isn't Very Smart

Environmental Building News first introduced waterless urinals to the green building community--back in February 1998 in a product review of the No-Flush Urinal from the Waterless Company.