1000 Home Challenge

Linda Wigington distinguished between deep retrofits & deep energy reductions, thus expanding the range of strategies & tactics from which we might propose when engaging with people, the ones who choose.

Members: 130
Latest Activity: on Monday



  • Dates for the next Intro to the Thousand Home Challenge webinars

         Wed. Oct. 26, 2015; FOCUS ON MAINE - 3:00-4:30 AM (Eastern Time)

         Friday, Nov. 5, 2015; 1:00-2:30 PM (Eastern Time); 10-11:30 AM (Pacific Time)

  • If you have questions about the Thousand Home Challenge application process, contact Linda Wigington
  • Contact Jon Bolduc if you have a question about the Maine Thousand Home Challenge  (


In the Same Spirit/Tangential

Discussion Forum

Congrats Bill Turner - 27th Project (1st in Maine) to Officially Meet the 1000 Home Challenge! 2 Replies

Check out 1) Attached energy use bar chart - 80% reduction of 2011-12 use.2)  Updated case studies: things inspired Bill…Continue

Tags: densepack insulation, renewable, baseload reduction, existing home, cold climate

Started by Linda Wigington. Last reply by Don Fitchett Aug 27.

Weigh in - Honorable Mention? 2nd Base? Half-Way There? 50% Better? On the Path? 28 Replies

The Thousand Home Challenge is moving the category of recognition forward that represents "Half-way there".There is consensus that this category not be the same as meeting the 1000 Home Challenge. We are not lowering the standard (approximately 70%…Continue

Tags: on the path, performance, existing homes, champions, 50% Milestone

Started by Linda Wigington. Last reply by Chie Kawahara Jul 25.

Congrats Ceniceros Household! 26th Project to Officially Meet 1000 Home Challenge 19 Replies

52%, 55%, and 78% reductions - check out the numbers in the attached two slides!10 years ago, significant efforts to reduce energy use (kWh and kW) began with a comprehensive energy upgrade. This…Continue

Tags: California, deep reduction, peak reduction, NightBreeze thermostat, energy upgrade

Started by Linda Wigington. Last reply by Jan Stensland Mar 25.

25th Project to Officially Meet the 1000 Home Challenge! The Energy+ Household - Bay Area, CA

The Energy+ Household – Bay Area, CaliforniaOver the past several years the Ghosh family has retrofitted their 2,170 ft2 house with a host of technological solutions. This project exemplifies the integration of efficiency, electrification, on-site…Continue

Tags: existing, EV, home, site, residential

Started by Linda Wigington Mar 5.

NZE Performance Over Time; Ductless Heat Pump Performance

I just recently received an update of energy use over a 4-year period from Ward Lutz, one of the first projects to meet the 1000 Home Challenge. Ward met the 1000 Home Challenge in 2010, after he completed a deep energy retrofit of his modest home…Continue

Started by Linda Wigington Jan 7.

THC Candidate Shares Energy Data 4 Replies

Midori Haus, a Passive House retrofit in Santa Cruz California and a Thousand Home Challenge candidate, used 4,334 kWh during the first year of occupancy.  This is 80% reduction compared to the energy used by the previous owner of the house  (21,928…Continue

Tags: challenge, home, thousand, house, passive

Started by Chie Kawahara. Last reply by Linda Wigington Dec 16, 2014.

Low-cost electricity monitoring: Accuracy & Applications 14 Replies

Lots of folks involved in the 1000 Home Challenge have effectively tackled their electric plug loads.Low cost devices such as the Kill A Watt meter (~$30)  can provide useful information that help direct their actions. Consider that the average US…Continue

Tags: use, 1000, Home, Challenge, electricity

Started by Linda Wigington. Last reply by Maria Lacey Nov 20, 2014.

Can We PLEASE Stop Calling Them “Ductless” 11 Replies

For the past 2 years we’ve been installing Mini Split Heat Pumps in our Green Renovation work on foreclosed homes.   And on all of them we’ve used ducts.  Some in attics, but most inside the building envelope.  We’ve been so happy with the…Continue

Started by Dave Robinson. Last reply by Bob Blanchette Oct 23, 2014.

Actual Energy Use - 20 Thousand Home Challenge Projects & 20th Project to Meet 1000 Home Challenge 21 Replies

We just approved the 20th Thousand Home Challenge project! Congratulations to Ruth von Goeler and Kelly Slough of Northampton, MA. They participated in National Grid’s Deep Energy Retrofit pilot in 2012. Their OPTION B threshold was 13,071 kWh…Continue

Tags: Reductions, Deep, Retrofits, 20th, Project

Started by Linda Wigington. Last reply by Brennan Less Jan 27, 2014.

clothes dryer: vented or ventless? 9 Replies

I am considering buying an electric clothes dryer for my home (which is all-electric).   I could go with a conventional vented dryer, or a ventless condensing dryer.   I am inclined toward the ventless dryer because it will keep the heat in the…Continue

Started by Scott Willenbrock. Last reply by Dennis Heidner Jan 14, 2014.

Comment Wall


You need to be a member of 1000 Home Challenge to add comments!

Comment by Linda Wigington on March 21, 2013 at 4:28am

Check out this Deep Energy Retrofit resource by Building Science Corp.!


DER Builder’s Guide   (240 pages)

The DER Builder’s Guide provides an exploration into DER concepts and an elaboration of technical specifications for several common approaches to wall, ceiling, attic, basement, and slab assemblies. Special attention is given to how a specific single assembly can be completed while providing for future DER work as part of a staged approach to a deep energy retrofit.


A high resolution version of the Mass Save Deep Energy Retrofit Builder Guide and program guidelines are also available:


Comment by David Eggleton on February 14, 2013 at 1:14pm

"Someday, after mastering the winds, the waves, the tides and gravity, we shall harness for the Divine the energies of love, and then, for a second time in the history of the world, we will have discovered fire."

~ Pierre Teilhard de Chardin

Comment by Linda Wigington on January 23, 2013 at 9:43pm

Check out the article in the latest Home Energy Magazine by Paul Eldrenkamp.

One of the projects discussed is Will Brownsberger who met the 1000 Home Challenge 1 year ago.

Comment by David Eggleton on September 19, 2012 at 6:44pm

"I didn't think I'd hear studies about it post its completion."

Sean, revealing how most, if not all, households meet the Challenge is one of the reasons for the Challenge.  Sharing people's strategies, some of which cannot be anticipated, will greatly increase the overall impact as non-participants adopt and adapt them.

Comment by Linda Wigington on August 2, 2012 at 7:42pm

I too recommend reading the article by Nicholas Arguimbau, "Bill McKibben is wrong...".   I would like to hear your comments.

Comment by David Eggleton on August 2, 2012 at 7:36pm

In Energy Bulletin: "Bill McKibben is wrong, we must not forget that 'We have met the en...'"

by Nicholas C. Arguimbau

Comment by Diane Chojnowski on April 9, 2012 at 12:09pm

Hi David,

I'd like to share info about your webinar on twitter and facebook with over 14000 followers. Would you please create an event here that we can link to?

Thanks, Diane

Comment by David Eggleton on April 9, 2012 at 10:28am

Heads Up!  Linda's presenting the introductory webinar on Wednesday.

Comment by David Eggleton on February 21, 2012 at 9:39am

Revised:  If you are on Facebook, please consider joining the 1000 Home Challenge group there, as well.  It's an open-to-all group, revealing the Challenge to a wider population segment.  Find it at 1000 Home Challenge.

Comment by David Eggleton on January 25, 2012 at 7:18am

Are you a member of the Best Practices (Residential) group?  There should be many common interests.


Home Energy Pros

Home Energy Pros was founded by the developers of Home Energy Saver Pro (sponsored by the U.S. Department of Energy,) and brought to you in partnership with Home Energy magazine.  Home Energy Pros is sponsored by the Better Buildings Residential Network.

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