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 Monday

Two more projects have recently been approved as 1000 Home CHallenge candidates. We welcome Eric Johnson and Louis Iverson. Both are from western Ohio; Eric is from Yellow Springs, and Louis is from Radnor, OH. We look forward to learning more about their projects and progress.

Comment by Linda Wigington on July 25, 2015 at 8:03pm

Check out our latest case study - This DIY DER of a 1929 miner's cabin in the Colorado mountains is our first project from Colorado. As an ongoing work-in-progress, it is a Thousand Home Challenge Candidate. Since 2011 it has achieved a 51% reduction in site energy usage through the use of attic and wall insulation upgrades, air sealing, window replacements, and solar PV, as well as occupant efficiency strategies. A very-low-budget renovation, it makes extensive use of salvaged materials to keep costs affordable.

Deep Energy Reduction Renovation of the Golden Acorn Ferret Cabilow

Comment by Chie Kawahara on May 14, 2015 at 5:51pm

San Mateo County is having a Zero Net Energy workshop on Friday, 5/29/2015, for homeowners.  This all day workshop is a great value at only ten dollars!  Ann Edminster is the keynote speaker.  I will be sharing my learning on Midori Haus, the first Passive House in Santa Cruz County certified by PHI.

Comment by David Eggleton on February 18, 2015 at 11:52am

On Facebook, I created this week a page named More Productive Property. It's about residents, house and grounds (and beyond) as a system.  Please visit

Comment by Linda Wigington on June 30, 2014 at 4:15pm

Heads up! We just approved two more 1000 Home Challenge projects, bringing the total number of completed projects to 24. One project is from California, the other from Massachusetts. More updated summary of 1000 Home Challenge data. 

Comment by David Eggleton on May 3, 2014 at 11:20am

This is to reinforce Linda's 4/24 commendation of a discussion elsewhere on Home Energy Pros.

Comment by Linda Wigington on April 24, 2014 at 11:18am

Great discussion in the general forum. Consider chiming in.

Comment by David Eggleton on November 8, 2013 at 2:56pm

Consider including a permaculture designer on any team working with participants in the THC, especially for behavioral changes and community solutions.

I'm presenting at this unprecedented event in southern California in March.

The site is up (far more often that not).

Comment by Linda Wigington on October 10, 2013 at 9:37am

Thousand Home Challenge - Re-Booted!

What is the essence of the Thousand Home Challenge? We are compiling recommendations to post on the Thousand Home Challenge Website under the heading "What People are Saying"

For the most current list of testimonials, I am starting a page in this group, so folks can build on the list. We welcome your contributions!

Comment by David Eggleton on October 7, 2013 at 7:21am

For newcomers and as a reminder to all who received the e-mail, great news received from Linda late last week:

"There has been a transition with the Thousand Home Challenge.  After a break in any visible activity since mid-May, we are now back in business.  Activities include offering the Introduction to the Thousand Home Challenge, moving projects forward, updating the website, and seeking opportunities for collaboration and funding.  We have moved from the pilot phase into the project development stage.  A virtual leadership/advisory group is being convened to steer us through the important work ahead.  I look forward to hearing from you!"

See the Resources section of this page for info about upcoming Intro webinars.


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