

Spotlight Article:
The Elusive Search for an Energy-Efficient Water Heater
My Sunday kayak adventure with my wife and friends on Lake Tahoe was magic. Paddling that beautiful lake relaxed me to the point where, by the time I reached home, I was ready for a ...
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Measured Performance of Ducted and Space-Coupled Heat Pump Water Heaters in a Cooling-Dominated Climate
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The Building America Partnership for Improved Residential Construction, led by the Florida Solar Energy Center, investigated the effect of ducted and interior-located heat pump water heaters (HPWHs) on space-conditioning energy use and water-heating energy use ... [continue reading]

Water Heating in All-Electric Homes
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When I started working in the home energy field (in the mid-1990s), I never imagined I’d be suggesting that all-electric homes could be among the most efficient, sustainable, and practical choices in ... [continue reading]

A Passion for High-Performance Plumbing Systems
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Turn on the faucet, then wait, wait, wait for the water to get hot. Many owners of older homes are familiar with this scenario. Fortunately for buyers of new homes, home builders now have a ... [continue reading]

The Elusive Search for an Energy-Efficient Water Heater
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My Sunday kayak adventure with my wife and friends on Lake Tahoe was magic. Paddling that beautiful lake relaxed me to the point where, by the time I reached home, I was ready for a ... [continue reading]

Overcoming Codes and Standards Barriers to Innovations in Building Energy Efficiency
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Building codes have really motivated builders to increase the energy efficiency of new homes in recent years. But as quickly as the codes are changing, new products are coming to the market even faster. Sometimes ... [continue reading]

Hot Water: Why Plumbing Technologies and System Designs Matter
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The average home in the United States makes at least 2,000 annual demands for hot water. And that’s very conservative. A more-likely demand value exceeds 4,000. Couple those demands with an average wait time for ... [continue reading]

Alaska's Largest Solar-Thermal System - a Model for Multiresidential Use
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The Denali Education Center campus in Alaska gives a solar water-heating system a try. Here are some lessons learned. [continue reading]

Case Study: SHARC Sewage Heat Recovery System
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SHARC stands for sewer heat recovery, and the system has been proven effective in the apartments and common areas for residents of the Seven35 Building in North Vancouver, British Columbia. [continue reading]



Leslie Jackson
The Silver Bullet to Zero Energy Affordability, by Paul Springer
Hint: It’s not solar or storage...


Carol Harley, E4 the Future
Look for Us and Win: Faces of EE
Getting ready for HPC18? Plan to stop by the Faces of EE photo booth on April 24 to receive a FREE ...


