Solar Thermal Hot Water, Heating, and Cooling

By creating heat instead of electricity, solar thermal achieves three times the efficiency of photovoltaics at a lower price.

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Product News & Reviews

The World's Most Efficient Solar Thermal Collector?

The Ritter XL solar thermal system combines the most efficient technology to generate hot water for commercial, multifamily, and district heating.

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Porous Plus: Eco-Tek Pavers Include Regional Slag

Eco-Tek porous pavers offer recycled and regional content in addition to stormwater management.

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Lightweight Drywall: More from Less

New lightweight drywall achieves up to 30% weight savings, easing installer fatigue and reducing transportation energy costs.

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International Passive House Institute Drops U.S. Affiliate

Judge Dismisses Gifford Case Against USGBC, LEED

Evergreen Solar Files for Bankruptcy

New Energy Star Standards for Dishwashers and Furnaces

Obama Administration Plans for Greener Electronics

Climate Change Could Double Need for Flood Insurance

Students Move into "Largest Net-Zero Community" in U.S.

Coal's Star Falling; Natural Gas on Upswing

New Method for Harvesting Electricity from Waste Heat

Voluntary EPA Program Fails to Protect Children from Chemicals

New Guide Tries to Make Building Performance Tracking Easier

USGBC Take Step Toward Performance Transparency

From the Editors

EBN Resources to Support the Classroom and the Syllabus

Interface Chairman Ray Anderson Remembered

BackPage Primer

PBT Chemicals-Persistent, Bioaccumulative, Toxic

You've heard of persistent toxic chemicals, and bioaccumulation, but what do these things really mean, and what do they do?

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September 2011

Volume 20, Number 9

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