Lynden Powerhouse Open House Tour with Sustainable Connections
Written by: Nicole Miller
Sustainable, innovative and efficient!
A couple weeks ago we were pleased to host a home tour of the Lynden Powerhouse project in conjunction with Sustainable Connections and with a presentation from Built Green! The clients were gracious enough to let us hijack their home for the evening for the event. The 3-hour event was a success, bringing in all different kinds of people with different backgrounds! We were all excited to share the success of the home.
Lynden Powerhouse is not only beautiful but highly advanced. Using its oversized solar array in combination with server battery backups, the house is able to run without contributions from the grid, and even spends the entire afternoon putting power back on to the grid, helping power the neighboring houses and reduce the need for a peaker plant!
Homeowner Bob presented to everyone the impressive data showing the solar production, battery charge, grid output and critical loads. He explained that their system runs entirely on their battery backup during the night (note the State of Charge (SOC) line from 0:00 to7:30am slowly reducing) but never getting below 30% charge, then as the sun rises, the PV system (note the green area) runs the home and charges the battery until it’s at peak charge around 1pm, then all the excess solar produced is exported back on the grid (note the yellow area). This is the cycle that repeats itself each day!
The home has also proved its efficiency during family gatherings – in peak summer heat with children running in and out of the doors and with 20 folks inside, the home still never got above 75° inside and still exported 75% of the PV electricity generated.
I don’t know about you, but we’d call that an epic success!
A huge thank you to our adored clients, the homeowners of Lynden Powerhouse, and to Sustainable Connections!
Case Study & 2024 HIA Winner: The Lynden Powerhouse
Written by: Talia Dreicer, Nicole Miller & Senna Scott
The Lynden Powerhouse Case Study, written by Talia Dreicer, was featured in this season’s Master Builders Association Publication!
“The Lynden Powerhouse is a highly efficient, net-positive energy home that cultivates meaningful aging-in-place living and community connections in Lynden, Washington. Designed by Powerhouse Designs and built by TC Legend Homes, this 5-bedroom, 4.5-bath home features three distinct living areas and seamlessly merges innovative design techniques, a high-efficiency HVAC system, and automation technology to create a beautiful and comfortable home. Receiving DOE Zero Energy Ready Home, ENERGY STAR, and EPA Indoor airPLUS certifications, along with a Built Green 5-star certification, this home is a shining example of high-performance housing.
In the years leading up to their retirement, Baby Boomer couple Lee Anne Caylor and Bob Edmiston saw two potential paths. According to the couple, the choice was “a decision between lives of generativity or stagnation.” Caylor and Edmiston chose the path of generativity, focusing on creating a future where they could share time and knowledge with family, friends, and community. They started envisioning their future home, the Lynden Powerhouse, as an accessible, comfortable, and healthy living environment that would enable meaningful intergenerational living and support human connection. The COVID-19 pandemic only furthered their interest in positively impacting the lives of their family, community, and the planet, helping them refocus from their professional goals towards providing solicitude for both younger and older family members alike. The couple also saw the Lynden Powerhouse as a chance to push the high-performance housing envelope. Edmiston, a self-described “mad scientist” with a technical background and keen mind for understanding how things work, wanted to incorporate automation technology and add resiliency measures to optimize resources and reduce future financial burdens. Seeking a team that could deliver on their project goals, Caylor and Edmiston approached Powerhouse Designs and TC Legend Homes to design and build the Lynden Powerhouse.”
Additionally, we were excited to hear this week that Lynden Powerhouse is one of the 2024 DOE Housing Innovation Award winners! We don’t know what category the home has won yet, but we are beyond ecstatic and grateful to be receiving yet another win.
This was truly possible because of the collaboration with our incredible clients who were willing to push the envelope with us. We have the deepest appreciation for them and the innovative smart home features they created!
We are excited to announce our Net Zero Energy Co-Housing spec project that’s currently under construction!
Titled “Woburn House” on our social media, this 5-bedroom home is intended to house multiple family units and has an accessible first-floor bedroom and bathroom. Our hope is for this to be a multigeneration home creating a small, tight-knit community.
As always, this home will create its own power, leaving the residents with zero electric bills. We also anticipate it will receive Built Green 5-Star, Indoor AirPlus, EnergyStar, and Zero Energy Ready Home certifications.
Once completed, this home will be open for lease or purchase!
To answer why sustainable housing is important, we first have to add context to the question. Each year Washington State adds roughly 35,000 to 43,000 new housing units to the market. However, to keep up with housing demands, we need to be building at least 50,000 new units each year in the state alone. Nationwide, that equates to needing upwards of 3 million new housing units each year. However, the construction industry accounts for a huge portion of the greenhouse gas emissions (GHGs) nationwide and globally accounts for roughly 37% of the CO2 emitted each year. Imagine if we made just a portion of those new homes more sustainable. The amount of CO2 we could save from being emitted into the atmosphere could have a profound impact on the future health of our planet.
Delving even deeper, there are many different ways the construction industry impacts the overall GHG emissions. As the above chart shows, there’s a sector just for “Buildings,” which consists of the GHG emissions caused by the daily use of buildings such as cooking, heating, waste management, and providing electricity to a building. In construction, we also need to consider the GHG emissions that are produced during the process of building the homes and making all of the materials. That means that, during construction, we are also emitting GHGs from the “Industry,” “Electricity and Heat Production,” “Forestry and Land Use,” and “Transportation” sectors. Altogether, this makes up over a third of all GHG emissions.
In addition to GHG emissions, the production of every material, the deforestation to clear a jobsite, the excavation of a site – all of it has an impact on the environment as well. Deforestation for materials or land removes habitat from the ecosystem, and contributes to erosion which can impact our waterways, as well as impacts the albedo of that plot of land. Producing different materials may require mining out precious metals, minerals, or rocks which has a whole slew of negative impacts on the environment from habitat destruction to the leeching of pollutants into our waterways (think about Flint, MI). Beyond mining, the actual production and delivery of the material takes a lot of energy, produces waste, and can produce a multitude of different pollutants, not just CO2.
If you think about it, every item you choose for your home will have some level of impact on the environment. So, when we talk about sustainable housing, we are thinking about each of these materials and what choices we can make that will lessen our overall impact.
Finally, once a construction project is complete, the building itself will continue to impact the environment. Remember the “building” portion of the pie chart above? When we are building sustainably, we are also thinking about post-construction and how the home will perform sustainably. We want to make the home as energy efficient and water efficient as possible, to lessen those respective environmental impacts after move-in. Of course, the less energy the home is using while occupied, the less GHG will be emitted in order to create that energy. If renewable energy is used to power a home, then that also helps reduce the GHG emitted, but we still want to aim for decreasing the overall energy use since every energy source we use will emit GHGs in some way, some just naturally less than others. We also want to reduce the water consumption of a home while occupied, as clean water is a finite resource, and we are rapidly draining our valuable aquifers and the glaciers that supply our rivers are melting and not returning. Therefore, it’s critical that we reduce our overall water usage.
So, to answer why sustainable housing is important, we have to look at the cumulative impact of the construction industry. Simply speaking, sustainable housing helps us minimize negative environmental impacts from pre- to post-construction, not just to reduce electricity consumption or because of climate change.
At TC Legend Homes and Powerhouse Designs, we are committed to building only net zero energy homes or net zero energy ready homes and are actively working to reduce our home’s overall carbon footprint for a carbon neutral future!
This national award represents a significant achievement, recognizing the most impressive and advanced homes among leading DOE Zero Energy Ready Home builders. Our standard-setting leadership serves as an example of what every homebuyer in the nation should come to expect and demand from their home.
The Housing Innovation Awards helps us celebrate our success in providing our customers with the best in energy efficiency, indoor air quality, comfort, and construction quality. Awardees this year are being recognized for innovative use of off-the-shelf technologies and strategies to achieve advanced performance; innovative use of leading-edge technologies and strategies to achieve advanced performance; market transformation through education efforts; and innovative implementation of decarbonization strategies.
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