Spotlight: Zero Emissions home to be powered by solar and lithium-ion battery

LightWave Solar recently installed a solar and battery backup system for a home designed by archimania, the award-winning architecture firm currently ranked 8th nationally in design by ARCHITECT magazine. Based in Memphis, Tennessee, archimania is known for designing forward-thinking buildings across the Southeast. One of their latest residential projects is “civitas,” located in Memphis on the banks of the Mississippi River. civitas is an endeavor into reimagining what a home can be when passive and high-performance design strategies are fully integrated.

archimania’s civitas project drawing

Utilizing common sense design principles, along with renewable energy technologies such as geothermal HVAC and solar PV with battery storage, this project is on track to be one of the first homes in America to be certified Zero Emissions, Zero Energy, and Reveal (AIA2030 Challenge), along with LEED Platinum certification.

“civitas will demonstrate that a home can be free of utility bills while having a more significant impact and connection with nature,” says archimania principal, Barry Alan Yoakum, FAIA. “civitas seeks to deliver an architecture that creates less waste via prefabrication with a mix of well-crafted components,” Yoakum adds.

archimania’s civitas will be solar powered with battery backup

archimania responded with a 2,800-square-foot residence with two primary rectangular, flat-roofed forms, utilizing Structural Insulated Panels (SIPS) and Cross Laminated Timber (CLT) for the first time, all clad in recycled aluminum and floor-to-ceiling, operable glass. civitas will be a case study in sustainable and high-performance design, and designed by Yoakum for his own family.

“civitas was built to be uber energy efficient and comfortable while maximizing natural daylight and views of the river,” Barry says.

LightWave Solar installed 47 solar panels and one LG Chem RESU lithium-ion battery at civitas.

civitas will be the first home in Memphis to be powered by solar PV and a lithium-ion battery. LightWave Solar installed 16 LG 320-watt solar panels, a SolarEdge StorEdge inverter, and an LG Chem RESU battery. During the day, the lithium-ion battery stores extra solar electricity. When the sun goes down, and the home’s consumption goes up, the battery allows the home to continue to run on solar power. In the event of a grid outage, the solar + battery system will power items in a critical loads panel including several lights, outlets, his refrigerator, freezer and garage door.

In addition to the 16 solar panels that charge the battery, civitas has another 31 LG solar panels totaling 10kW that will participate in TVA’s Green Power Providers program, and all of its solar electricity will be sold to the grid. Altogether, the home’s 15kW of solar capacity will reduce carbon dioxide emissions equal to growing 13 acres of forest. It also prevents the generation of nearly 2,500 pounds of harmful coal ash every year. Over 25 years, that’s more than 31 tons of coal ash avoided!

The home will be finished by early summer. In addition, LightWave Solar will have completed a 50kW solar system on archimania’s new office also located in Memphis. Leading by example, archimania hopes to inspire more of their clients, neighbors, and friends to incorporate energy efficient design and solar PV into their homes and workspaces.

“One of our goals is to position high-performance design as an answer to solving climate change through scalable economic solutions,” Yoakum explains.

archimania’s residential and commercial solar projects will be able to claim the full 30% federal tax credit which drops down to 26% in 2020. 2019 is also the last year to apply for TVA’s Green Power program. Contact LightWave Solar for your free custom proposal to capture this year’s solar incentives.

The staff was incredibly friendly and knowledgable. in addition to keeping the area clean , we are very happy with the work and the price.
Denis Savouray
Denis Savouray
13:11 30 Nov 18
Light Wave Solar is terrific. All their people were great to work with, knowledgeable and on- the- ball. They were everything i could have asked for and i couldn't be happier with the system they installed. So far it is working just as i hoped!
Jeanie Stephenson
Jeanie Stephenson
23:00 26 Nov 18
I needed LightWave's help after a wind storm caused a tree to fall on my house. The tree destroyed ten solar panels on my roof. LightWave's technicians visited me to assess the damage and plan repairs. LightWave's project manager took over from that point. After the design was complete and approved, the installation crew completed the job in a single day. Every LightWave representative was pleasant and professional. I would recommend them to anyone who needs their services.
Mike Wiedemer
Mike Wiedemer
18:41 25 Oct 18
The whole team at LightWave Solar did an all-around excellent job! They showed up on time as expected and communicated everything very clearly on what I can expect to see and happen. They were all very professional and courteous throughout the entire process. I am already seeing MUCH lower electric bills. Thanks again to everyone at LightWave Solar, I greatly appreciated your services.
Nick Mielnik
Nick Mielnik
18:41 22 Oct 18
The entire team at LightWave Solar went above and beyond to ensure that our solar install was done on time, on budget, and to our satisfaction. Professional in every way. I can't get over how seamlessly they have integrated everything to our 1960 built home. Very well done. An added bonus is their handling of the necessary licenses, myriad forms and paperwork and approvals from local power company and TVA. These guys deserve 10 stars!
Shawn Kries
Shawn Kries
18:12 16 May 18
Great service and solar products. Professional installation and technical support. Installation quality outstanding.
Dan Larsen
Dan Larsen
13:56 22 Feb 18
Very happy with our 50KW solar panel array commercial system. Lightwave was extremely easy to work with.
Mark Fournier
Mark Fournier
13:19 08 Feb 18
We installed a 10 KW solar panel array on the roof of our home this past fall. The process required coordination between us (the customer), the local electric company (Nashville Electric Service) and the Tennessee Valley Authority (TVA). While this may seem daunting, it turns out that apart from signing a few routine documents, the process requires little to no effort on the part of the customer: Lightwave Solar takes care of all the details. Their attention to those details was impressive, which meant the whole operation was smooth, professional and basically worry free. The physical installation itself is a marvel of craftsmanship and technology. Lightwave Solar fully earns their five star rating and I recommend them without reservation.
David James
David James
06:07 22 Jan 18
Expert system design and expert install. Couldn’t be happier. Installed grid-tied roof-mounted 30kw system on rural lodge. Very happy with results on electric bill.
Greg Gough
Greg Gough
02:27 20 Jan 18
My first month's savings was over $100. This is in spite of shorter fall days, cloudy days, and rain. The shortest day of the year is in late December. Its best performance will be in the spring and summer. I am very pleased with it.
Gerald Dooley
Gerald Dooley
18:26 27 Oct 17

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