In this episode of Home Green Homes, Izumi Tanaka talks with Nick Grimm — a father, homeowner, and sustainability professional who is gradually transforming his 1953 Los Angeles home into a healthier and more energy-efficient space.

Nick didn’t begin with a master sustainability plan. Like many homeowners, his journey started with basic maintenance: replacing appliances when they broke and making upgrades when necessary. But as he learned more about sustainability, each decision became an opportunity to choose better options.

So far, Nick and his family have:

• Replaced a gas cooktop with an induction stove
• Installed a heat pump washer/dryer
• Upgraded their electric panel
• Installed solar panels
• Purchased an EV and charger
• Begun planning for heat pump HVAC and water heating
• Started thinking about drought-resilient landscaping

One turning point came when Nick used an indoor air quality monitor while cooking on a gas stove — and saw pollution levels spike inside his home. With a young child experiencing asthma, it accelerated their switch to induction cooking.

Nick also discusses the real barriers to electrification, including the complexity of rebates and the financial realities many homeowners face.

Despite those challenges, he believes individual choices still matter. For Nick, the ability to take action — even one appliance at a time — is empowering.

If you're a homeowner wondering whether it’s time to replace gas appliances with electric alternatives — this episode is for you.

In Episode 102 of Home Green Homes, Izumi chats with Akanksha Mathur, General Manager for Southern California at Elephant Energy, to discuss what it really takes to electrify your home.

From heat pumps and induction cooking to rebates, incentives, and indoor air quality — we break down the electrification process step-by-step.

Elephant Energy is a Certified B-Corp focused on making the switch from gas to electric simple, seamless, and climate-friendly. Akanksha shares her journey from mechanical engineer to climate advocate, and why education is the missing link in helping homeowners make confident decisions.

If you live in Southern California — or anywhere thinking about clean energy upgrades — this conversation will help you understand:

• What “home electrification” actually means
• How heat pumps work
• What incentives are available
• Why indoor air quality matters
• The biggest challenges homeowners face
• How to make sustainable choices easier

The future is electric. The question is — are you ready?

🎧 Listen now and learn how to make your home cleaner, healthier, and more energy-efficient.

Chapters

00:00 Introduction to Elephant Energy

05:19 Akanksha's Journey to Elephant Energy

10:15 The Process of Electrification

15:44 Challenges in the Electrification Process

20:59 Educating Homeowners on Electrification

26:16 Personal Reflections and Future Aspirations

More Resources:

• Switch-is On
• TECH Clean California

What does it really take to build homes that are beautiful, efficient, resilient, and responsible?

In this special 100th episode of Home Green Homes, Izumi Tanaka welcomes Steve Glenn, founder and CEO of Plant Prefab, for an in-depth conversation that weaves together architecture, sustainability, entrepreneurship, and climate action.

Steve traces his path from an early love of architecture to founding LivingHomes and later Plant Prefab—companies created to challenge the waste, inefficiency, and environmental impact of conventional construction. He explains what truly sets Plant Prefab apart: customized architectural design, a purpose-built factory capable of both panelized and modular construction, and a mission-driven commitment as a certified B Corp and public benefit corporation.

The conversation also dives into Plant Prefab’s work supporting communities rebuilding after devastating Southern California wildfires, and why prefab construction can offer faster, more predictable, and often more cost-effective rebuilding solutions.

Along the way, Steve addresses common misconceptions about prefab homes, shares what homeowners should prioritize when designing for climate resilience, and reflects on leadership, scaling a values-driven company, and what he hopes the future of housing can become.

This episode is especially relevant for homeowners, home dwellers, architects, builders, developers, and anyone curious about how housing can be part of the climate solution.

• Prefab ≠ mobile homes: Plant Prefab homes are legally and structurally equivalent to site-built homes and cannot be excluded from zoning, financing, or insurance.
• Energy matters most: Over a home’s lifetime, operational energy use has a bigger climate impact than materials—efficiency and solar should be top priorities.
• Time is money: Faster, parallel construction can significantly reduce carrying costs, rent, and uncertainty—especially important in rebuild scenarios.
• Design and sustainability go together: High-quality architecture and environmental responsibility are not mutually exclusive.
• Rebuilding after disaster is an opportunity: Prefab can help communities recover faster while building more resilient, future-ready homes.
• Mission-driven businesses face real challenges: Scaling sustainably takes persistence, patience, and long-term vision—but the impact compounds over time.

Chapters

• 00:00 Personal Impact and Vision for the Future

“I think especially when you get to the point of EHS, that everybody takes responsibility for their own energy, and that’s part of the healing. Just as important it is to put that metal shielding around those wires as it is to be very mindful of how we’re using our energy, and how we’re treating out bodies.”

Michael Bender, an artist and writer by profession, who struggled with increasingly aggravating and mysterious health issues that most doctors couldn’t figure out pretty much all his life after he was bitten by a tick at the age of 11. He was not only sensitive to the typical toxins found in homes, but started to have reactions to some of the most benign home products such as lavender fragrance of his wife’s shampoo. Needless to say, he developed electrical hypersensitivity (EHS), which reacts strongly to electrical signals and what’s commonly known as electro-magnetic field (EMF). After decades of challenges, he finally built a house where he and his family can live by creating a “Quiest Home,” which is a result of his tenacious effort to find solutions in various disciplines and modalities. He shares of a few resources he either used for himself and what he may recommend to others.

· Mike’s article, The Quiet House, in Men’s Health Magazine, March 2022

· The Green Design Center, Andy Pace

· SafeCoat Paint

· IQAir Perfect 16 Air Purifier

At certain points I think a lot of the building owners and management companies see the writing on the wall coming with policies changing not only at city level but also at state level with benchmarking, and conservation code is coming out, stretch code is coming out that they’re going to need to basically comply with within the next 10 to 20 years, next two decades. In a lifetime of a building, that’s pretty short. So they need to start investing now, and if they have free help from a local non-profit, then they are going to jump on it. So that’s kind of what our selling point has been there. But then also we are encountering a lot of building owners who do care about their tenants.

USGBC-LA’s The Green Affordable Housing Program (GAHP) was developed to support all Angelenos in having healthy, efficient, and resilient places to live, work, and play. This program delivers green community resources to disadvantaged communities and historically underserved neighborhoods that are energy-inefficient or burdened with pollution sources that are hazardous to communities’ health. The GAHP provides owners and residents of multi-family properties located in the Eastern San Fernando Valley with strategies for reducing energy and water costs, and greenhouse gas emissions.

The Green Affordable Housing Program provides:

• Tenant Workshops in English and Spanish covering sustainable practices & occupant health to help reduce utility costs;
• Enrollment assistance with LADWP programs and rebates;
• Guidance through a menu of efficiency & electrification options to facilitate building retrofits;
• Subsidized installation of innovative new green building technology to reduce utility costs and gas emissions;
• Air and water quality monitoring provided at no-cost.

Workshops for both property owners and tenants will be delivered at 20 selected multi-family properties. Participants will also receive a toolkit with resources on sustainable practices and occupant health, programs and rebates, tips on water and energy savings, building retrofit support and more!

"The new thinking is around circularity. The idea of circularity is the circulation of materials at their highest value for the longest period of time. And when you design with circular systems in mind, you are thinking about the end at the beginning, meaning what's going to happen to this product that we're making? What's going to happen to this house that we're designing at the end of life? Can any of these things be reused again? Can they be made into something else? Can you take and use... send the furniture back to the manufacturer and they'll repair it or even keep it and resell it to somebody else. There are companies that do that. " - Kathryn Soter

About a year ago, I interviewed Katie Story, a founder of Good Future Design Alliance, which she created to educate the professionals in the building and designing industry to reduce the massive waste this industry generates forging a radical new path in the world of design. The new executive director, Kathryn Soter, gives us the update on the organization’s missions as well as some practical tips when designing, redesigning and renovating homes or even when we need to replace a piece of furniture to help reduce waste.

• Construction and demolition waste is a massive problem, with 500 million tons generated annually in the US alone. This is equivalent to 100 Great Pyramids of Giza per year.
• There are major health impacts from construction waste, including landfill pollution, emissions, and plastic waste.
• GFDA aims to connect and educate interior designers, architects, contractors, and manufacturers to adopt low-waste practices.
• Homeowners should plan carefully, salvage and reuse materials, and hire trained professionals to reduce waste.

Resources mentioned:

• Chairish
• Renovation Angel
• Rheaply
• FirstDib

[This episode is from a short video about Adam's project. Best to watch on HomeGreenHomes YouTube channel.]

Adam, a long-time construction professional, and his family were experiencing health issues when they found their “property” in Redwood City, California. What they wanted was a place where they felt healthy. Yet the property was in such disrepair that his first thought was to demolish and rebuild. Instead he chose to “heal the house and the land that the house was sitting on” in the same way that he wanted to heal the family’s wellbeing. Thus Adam took on a challenge to change the construction process, which is typically very extractive, disruptive and wasteful, into a regenerative process to have a positive impact not just on the environment but also to the local community and local economy.

The project touched on the Five Roots of Regenerative Real Estate®: 1) Health and Wellness; 2) Sustainability; 3) Community; 4) Ecology and 5) Spirit, which also relates to the concept of “Eco-chaplain.” (Those who work to establish people in a healthy, compassionate, and mutually supportive relationship with each other and the natural world. - Sati Center of Buddhist Studies)

As a result, he was able to accomplish his Vision of truly regenerative project and indeed be an eco-chaplain for himself and his family, the property he turned into his family nest, the people who worked on the project and the surrounding community.