Home Energy Advisor - Seb Crangle

Home Energy Advisor - Seb Crangle Seb is an accredited home energy advisor, providing tailored services to reduce your home's energy demands.

Get professional help to lower energy bills & reduce your home's carbon footprint, by improving your home's energy efficiency.

It was a fab day on the North Coast for Sustainable House Day, even the sun joined in on the festivities! 🌞The tour of o...
17/05/2026

It was a fab day on the North Coast for Sustainable House Day, even the sun joined in on the festivities! 🌞
The tour of our own house went great, with some very engaged punters soaking up what we have learned in our retrofit energy efficiency/ thermal performance journey.

And after a quick lunch I went off Mullumbimby to learn from an owner builder of a "well wrapped" solar passive home, and lastly to a flood-affected home that has been beautifully retrofitted for flood resilience. What a jam-packed weekend it has been 🥵

16/05/2026

I was interviewed on ABC Radio this morning on the topic of Sustainable House Day and the energy efficiency journey in our own house - listen via recording below. If you haven't yet bought yourself a ticket to SHD time is running out, sales close this afternoon at 5pm (Sat 16 May). I'll be opening up our own house for a tour at 11am, taking punters through our home's energy efficient features with a focus on low cost DIY retrofiting for thermal performance (and a few higher cost tech as well...). There's over 150 houses opening their doors across Australia tomorrow, including several on the northcoast (including Mullum and Bangalow*), all included in the one $15 ticket. Hope to see you at one of them, otherwise please have a listen to this short (7min) interview. 🌞

* this SHD is being proadly supported on the North Coast by Byron Shire Council.

I'm opening up our home for Renew's Sustainable House Day again this year, including for in-person guided tours by an ac...
23/04/2026

I'm opening up our home for Renew's Sustainable House Day again this year, including for in-person guided tours by an accredited home energy consultant (moi! 😊) If you live in Northern NSW, book in and come along (17th May). Or if you live further away, you can check out the home profile and video summary on the SHD webpage:

Our home in Northern NSW was built in 1986 in beautiful surrounds but without consideration for sustainability, including few build / design features to promote thermal and energy performance. When we moved in in 2006 the house was incredibly hot in summer, cold in winter, and energy bills were high...

There is an ever-increasing concern of the catastrophic impact that AI will have on the world as we know it, from its up...
17/02/2026

There is an ever-increasing concern of the catastrophic impact that AI will have on the world as we know it, from its upturning of the worldwide employment market through to the centralisation of human intelligence (and power) in the hands of a wealthy few. For me personally, one of the more sickening impacts emerging are the enormous environmental impacts of AI, specifically from the resource demands of data centres.

According to the International Energy Agency a typical AI-focused data center consumes as much electricity as 100,000 households, and the larger centers under construction today will consume 20 times that (https://www.iea.org/reports/energy-and-ai/).

This is particularly disturbing to me because I have dedicated my professional life to reducing the energy consumption of residential homes and small businesses. I'm conscious that the energy savings from our homes are small compared to government and industry, and yet the collective progress we have been making to reduce energy consumption and carbon emissions is likely to be gazumped by the impact of AI's resource hungry data centres.

There are many good people around the world attempting to introduce ethical constraints and regulations on the AI wildfire, but they are fighting a losing battle up against powerful, vested interests. I'm at a loss for what I can do personally, other than a few simple acts of conscientious abstinence which I will share below. Their impact is small, yet they are all that we can do (easily) to reduce demand for this technology. And like improving the energy efficiency of your home the impact on the country's combined consumption is small, yet they are actions that we have the biggest influence over. Here's what I propose we all do:

1. When you search Google, type "-ai" at the end. This tells Google that you don't want the AI summary. Apparently this AI summary uses 10x as much energy and water as a standard Google search.
2. Change the settings on software that uses AI (like Adobe Acrobat) so it doesn't constantly offer you AI generated summaries.
3. Seriously consider not using AI tools like ChatGPT. Or at least: refrain from doing 'frivolous' queries, eg to generate video of a cat dancing...
4. If you *do* need to use an AI product, try to only use it for good outcomes that will help you make the world a better place.
5. Ask your workplace if it is developing guidelines for the ethical use of AI in your employment, and encourage them to include education on the environmental costs of non-essential AI use.

In making these suggestions I fully appreciate there will likely come a time when using AI is unavoidable, especially in our workplaces. Yet the more awareness we generate of the potential negative impacts of this technology, the more likely we are to be able to manage and mitigate the consequences.

Address

Ocean Shores, NSW
2483

Alerts

Be the first to know and let us send you an email when Home Energy Advisor - Seb Crangle posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Contact The Business

Send a message to Home Energy Advisor - Seb Crangle:

Shortcuts

Share