May 19, 2020

How to Buy Carbon Offsets 

With only a few years left to avoid the worst impacts of climate change, we must move rapidly toward a zero carbon society. Direct action is essential, but can’t happen fast enough. Carbon credits must play an important role in the transition.

Read Article

April 13, 2020

Heat Pump Magic

Heat pumps make homes comfortable, heat water, and even dry clothes. And they do it far more efficiently than other methods. It’s not magic, it’s science!

Read Article

April 13, 2020

Carbon Emissions: We Broke It, We Fix It!

There’s no time to lose. We must move rapidly and decisively toward a carbon-neutral economy. Direct action is essential, but cannot happen fast enough. After you have reduced carbon in your home, vehicles, and businesses, there is still more to do. Here’s how.

Read Article

March 18, 2020

The Mystery of Misapplied Mini-Splits

If you’ve ever heard that a mini-split heat pump wasn’t fulfilling its potential there is no mystery — the problem was almost certainly errors in design or installation. Here’s everything that needs to happen for a proper installation and reliable performance.

Read Article

March 18, 2020

Production Builders, It’s Time to Sell Zero Energy Homes 

Zero energy homes are poised to go mainstream. Large builders have the scale necessary to launch the market into this new territory. Homebuyers save and builders profit.

Read Article

March 14, 2020

Make Hot Water the Modern Energy Efficient Way

Heat pump water heaters have been available for several years and are gradually gaining acceptance in new construction as well as in the replacement market. Here is guidance for the best application of this technology with an emphasis on colder climates.

Read Article

February 15, 2020

Wall Upgrades for Deep Energy Retrofits

Upgrading the energy performance of walls in an existing home is the most challenging aspect of a deep energy retrofit. One of these eight options will work for just about any zero energy renovation.

Read Article

February 15, 2020

Unlocking the Added Value of Zero that Hides in Plain Sight

Real estate appraisers and mortgage lenders have never embraced the market value of energy efficient homes despite convincing evidence. A new study by Freddie Mac provides more data in support of this added value.

Read Article

February 15, 2020

We Have Met the Enemy and It Is Waste

Energy waste is rampant in the American economy. If waste were cut in half, it would reduce carbon emissions the same amount as closing all coal-fired power plants in the US. Each of us can make choices to help reduce this waste.

Read Article

January 22, 2020

Zero Energy Buildings Surge Ahead

The 2019 inventories of zero energy buildings show growth is strong in this important sector of the construction industry. New homes, apartments, and commercial buildings are increasing their share of the market at an impressive pace.

Read Article

January 16, 2020

The Challenges and Opportunities of Exterior Air Sealing

Good news! You can choose from more methods than ever before to reach the high levels of air tightness needed for zero energy construction. Many builders find it less expensive to seal the exterior structural sheathing. Here are six effective methods to consider.

Read Article

October 21, 2019

How many solar panels does it take to power an electric car? 

This question is becoming more common as we begin to move past zero energy homes into the realm of positive energy. Homes can do more than power themselves. They can also put a huge dent in the energy use and carbon emissions from our personal transportation.

Read Article