John Avenson of Westminster Is a Committed Teacher of Energy Efficiency

The sponsors of the annual Metro Denver Green Homes Tour, held on the first Saturday each October, are preparing to “go virtual” in case an  in-person tour is not allowed.

John Avenson’s house at 9988 Hoyt Place, Westminster

That will be accomplished by creating online video tours of the most notable “green” homes featured over the past 20 years. Since I’m on the steering committee for the tour and have the equipment and experience from creating video tours of homes for sale, I volunteered to create those video tours, starting with John Avenson’s home at 9988 Hoyt Place in Westminster.

By clicking here, you can view the 41-minute video tour, led by John, which I created last Friday. It is highly educational.

John Avenson

Many people, myself included, have created homes which can be considered a “model” of sustainability, solar power, and energy efficiency, but John is surely the only homeowner who has turned his home into a classroom for teaching it. He even posted pictures and diagrams throughout the house with instructional content about this or that feature, as you will see on that video.

He also hosts monthly Passive House meetings in his home theater which are also streamed online. They can be found at www.meetup.com/Passive-House-Meetup-S-W-Region/

John’s house was originally built by the Solar Energy Research Institute (SERI, now the National Renewable Energy Laboratory or NREL) in 1981 using then-state of the art technology, but John has diligently, and at great personal expense, kept retrofitting his home with newer technology, which he is happy to explain to visitors and which he explains on the 41-minute video.

CERV monitor screenshot

For example, because of increased insulation and Alpen quadruple-paned windows, he was able to get rid of SERI’s supplemental natural gas furnace, installing a conditioning energy recovery ventilator (CERV) which is powered electrically. His grid-tied solar PV system provides all his home’s energy needs and has reduced his Xcel Energy bill to under $10 per month — the cost of being connected to the electrical grid.

Some of the technological innovations featured in my video with John were new to me. For example, the Alpen windows across from his kitchen have horizontal micro-etching which redirects the sun’s rays 90° upward to his ceiling instead of straight through the glass, reducing the need for lighting.

John provided his email address in the video, saying that his “learning center” is open 24/7 and that he welcomes all inquiries and visitors.

At Saturday’s ‘Green Homes’ Tour, You’ll Learn What’s Possible for Your Home

The Metro Denver Green Homes Tour is an annual event that happens on the first Saturday in October, which is this coming Saturday. For $10 per person, you get to go on a self-guided tour of 14 Jefferson County homes with a variety of green features.

I consider myself pretty knowledgeable about solar power and sustainability, but every year I learn things I didn’t already know by touring the homes on this tour.

Golden Real Estate is proud to be a platinum sponsor of this event each year. Also, I serve on the steering committee and help in a variety of ways, such as organizing the Electric Vehicle Showcase, which takes place during the post-tour reception, 4 to 6 pm in the CoorsTek parking lot at 10th & Jackson Street in downtown Golden. It coincides with the reception and Green Expo in the American Mountaineering Center (AMC) across the street.

You can register for the tour online at www.MetroDenverGreenHomesTour.org, but you’ll need to pick up your tour book and map, which you can do anytime on Friday at Golden Real Estate’s office, 17695 S. Golden Road, or on Saturday after 9am at the AMC, 710 10th Street.  If you don’t register online, you can do so at the AMC on Saturday morning.

Then you’re on your own, mapping out your own tour based on locations but also on what you read about each house in the tour book.

I couldn’t shoot video tours of every home, but I did choose two that the committee felt represented particularly interesting examples of sustainability. You can see those two videos on the website mentioned above. By watching those two videos you will learn things you didn’t already know, as I did by shooting them.

To quote from page 3 of the tour book, “In our ongoing effort to showcase a wide variety of solutions and lifestyles, you will see solar, of course, and also mini splits, ground source heat pumps and passive solar treatments. You can visit an Arvada sustainable new town home community [Geos] and enjoy many other sustainable lifestyle features such as co-housing, electric vehicles and water wise gardens. You will be viewing the tried-and-true in addition to the latest in innovative technologies, plus learning many steps used to eliminate red tape while going green.”

If you pick up your tour book at Golden Real Estate, let us show you how we transitioned to “net zero energy” using many of the features you’ll see on the tour, including heat pump/mini-split heating & cooling, solar panels, super insulation, and tankless electric water heating. Our monthly energy bill is $10.26 since having our gas meter removed two years ago. If you come in an electric car, you can plug in to our free ChargePoint charging stations — powered by the sun — while we show you around! Click here to read the Jan. 4, 2018, column I wrote describing Golden Real Estate’s transition to Net Zero Energy.

This Saturday’s tour is one of 79 such tours of 894 private homes happening this weekend as part of the National Solar Tour sponsored by the American Solar Energy Society (ASES). And that doesn’t include, for example, last Saturday’s Boulder Green Home Tour, which had 10 homes on it. This is the 25th National Solar Tour, and we have participated for 23 of those years.

Don’t forget the Green Expo during the reception, 4 to 6 pm following the tour. Many companies which implement green solutions will have booths, and there will be an Electric Vehicle Showcase in the parking lot across the street. If you have an EV, bring it for display! If you’re interested in going electric, there will be test drives available. Also, Pedego Golden is bringing electric bicycles which you can test ride.  I have an electric bike, and I love it!

Also at the event will be the CSU Extension 4-H Mobile STEM Lab. The primary focus of the mobile lab is energy production and conservation, energy conversions and mechanical advantage for youth and adults.  Should be interesting!

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