Best Alex McIntosh & Nick Zeltzer Podcasts (2025)

1
Cheaper, Faster & Smarter EV Charging: How Kwetta Raised US$10.5M to Connect Millions of Vehicles to the Grid 50:36

4M ago50:36

50:36

Nick chats with Mike Lazelle and Dr Rob Turner, co-founders of Kwetta, to discuss their groundbreaking approach to electrifying heavy vehicles. Kwetta has just raised ~$17 million AUD in Series A funding from the likes of Blackbird and Virescent Ventures to address the “grid issue” for EV charging. And they’ve given us a podcast exclusive! Their in…

1
A Positive Climate's Startup PITCHFEST 2024 (feat. ten startups!) 1:39:04

5M ago1:39:04

1:39:04

Nick and producer-turned-”shark” Mark hear pitches from ten up and coming Australian climate startups! Our third annual pitch episode with some incredible ~seed stage startups in the latest cohort from EnergyLab - Australia’s leading climate accelerator. Previous guests on the Pitchfest and podcast have gone on to raise hundreds of millions in capi…

1
Does Australia Need Nuclear Energy? (feat. Simon Holmes à Court) 1:13:28

6M ago1:13:28

1:13:28

Nick chats to Simon Holmes à Court about nuclear energy in Australia. “When are you covering nuclear?” is one of the most common questions we’ve received from APC listeners. So we finally went there. And it was great to have Simon on to explore it all before we go back to our startup roots next episode with our THIRD pitch fest. (00:00) Intro (03:5…

1
Will Our Cars Power Our Homes? 1:06:51

6M ago1:06:51

1:06:51

Nick chats to Tim Washington from JET Charge about using electric vehicles as batteries for our homes. Vehicle to grid technology could transform not one but *two* trillion dollar industries in energy and transport. All while paving the way to materially reduce carbon emissions and costs. It is simple enough but does it work? When will consumers ha…

1
A Positive Climate #Wrapped 2023 58:56

1+ y ago58:56

58:56

That’s a wrap! It's our annual review episode, with Alex and Nick covering all the climate technology news from 2023. The hottest year on record brings a reminder that we need to be doubling down on the right solutions, so we hope you enjoy our reflections about what we think matters. Thanks again to all you listening out there! It’s been a big yea…

1
Startup Pitch Competition w/ TEN Australian Climate Tech Startups 1:14:51

1+ y ago1:14:51

1:14:51

Nick and Alex hear pitches from ten up and coming Australian startups working on climate solutions! *Vote HERE* We’re back with our second pitchfest episode! And again teaming up with EnergyLab’s accelerator program, but this time it’s different - there will be a winner decided by YOU! We’ve secured some awesome prizes that will go to the People’s …

1
How The USA Is Changing The Game (feat. Sicona) 33:25

1+ y ago33:25

33:25

This week Alex is away so Nick is let loose on the podcast! Nick chats to Christiaan Jordaan, CEO and founder of Sicona. Sound familiar? We interviewed Christiaan in back November 2021 in one of our all-time listener favourite episodes: "Australia's Role in the Battery Revolution". Since then Sicona has come a long way! Fresh off their recent $22m …

1
Jolting Australia’s Electric Vehicle Industry (feat. Jolt Charge) 44:17

1+ y ago44:17

44:17

We chat to Doug Mcnamee from Jolt Charge, an Australian electric vehicle charging business that has raised $100million from Blackrock (the world's largest money manager). EV uptake in Australia is on a charge! When we recorded our first EV episode in 2021, they comprised less than 0.5% of total sales. In the first half of 2023 this number was up to…

1
Made In Australia: SunDrive is Leading Our Next Solar Revolution 44:38

1+ y ago44:38

44:38

We chat with Vince Allen from SunDrive, a Sydney-based startup on a mission to transform Australia into a solar manufacturing powerhouse. In 2021, SunDrive made headlines by developing the world's most efficient commercial-sized solar cell. Not only that - by swapping silver with copper as the conductive material their products could be lower cost …

1
Lithium: Can We Extract It Sustainably? (feat. Novalith) 38:08

2y ago38:08

38:08

Do we have enough lithium for all the batteries we’ll need for a low carbon future? What is the impact of lithium extraction on the planet? And can we do it in a more sustainable way? Nick and Alex chat with Steven Vassiloudis of Novalith, a Sydney startup that can extract lithium in a way that not only reduces emissions but also the amount of chem…

1
Turning Seaweed Into Plastic (feat. Uluu) 37:03

2y ago37:03

37:03

Nick and Alex chat with Julia Reisser of Uluu, a startup based in Western Australia creating biodegradable plastic made from seaweed. This is episode two of our PLASTIC DOUBLE HEADER, this time tackling the plastic problem from the very source - the production! Plastic is a very real problem we need to address and unfortunately, given the way we cu…

1
Infinite Plastic Recycling with Samsara Eco 46:28

2y ago46:28

46:28

Is Samsara Eco Australia’s most exciting climate startup? With enzymes that literally eat plastic, it’s hard to disagree! Nick and Alex chat with Paul Riley of Samsara Eco, a Canberra based company that has raised ~$60 million to tackle one of the biggest problems of all: plastic recycling. It’s a tangible, challenging and very current problem in A…

1
Dairy Without The Cow (feat. All G Foods) 53:50

2y ago53:50

53:50

Stop The Burps! Nick and Alex have a chat about using less dairy. We then interview Jan Pacas of All G Foods - a Sydney-based company which has raised A$50 million to spearhead a global revolution to create real dairy, without the cows or the emissions (8:00) The technology is called precision fermentation and it could soon enough upend the $1 tril…

1
Making Aviation More Sustainable...With Shark Skin (feat. MicroTau) 40:45

2y ago40:45

40:45

We speak to Henry Bilinsky from MicroTau. The Sydney-based startup’s shark skin technology applied to planes has the potential to improve the efficiency of aviation by up to 10%, meanwhile saving airlines up to $61 billion a year on fuel. ** If you enjoy the show, subscribe and give us a rating on Apple or Spotify! You can sign up to our mailing li…

1
Season 4 Trailer: The Australian Startup Season! 2:21

2y ago2:21

2:21

We’re BACK with our best season yet! Launched on 27 June 2023, we'll release interviews fortnightly, speaking with Australia’s very best startups in the global climate transition. They’ve got game changing sustainable technology. They’ve raised hundreds of millions of dollars. And they’re ready to turn the world’s biggest problem into Australia’s g…

1
A Positive Climate #Wrapped: 2022 in Review with Alex and Nick 53:27

2+ y ago53:27

53:27

Alex and Nick wrap up 2022 and the end of season three with a wide ranging chat including an update on the international race to decarbonise, trends in cleantech, a check-in on our BIG predictions and our plans to bring you even more great episodes in 2023. We cover a lot on this episode: How the narrative around decarbonisation has changed in the …

1
A Positive Climate’s Startup PITCHFEST (feat. EnergyLab’s climate cohort) 1:22:26

2+ y ago1:22:26

1:22:26

Nick and Alex hear pitches from TEN of Australia’s up and coming climate startups! This episode brings you something a bit different. We’ve partnered with our friends at EnergyLab (Australia’s leading climate solutions accelerator) to hold a pitch speed round featuring their most recent startup cohort. The rules: A 60 second opening free pitch and …

1
Building Sustainably: Making Carbon Neutral Homes and Buildings 51:13

2+ y ago51:13

51:13

We chat to Liam Wallis, Founding Director of Hip v Hype a leading sustainable property developer based in Melbourne about the built environment and how we can make our homes and buildings carbon neutral. In our chat with Liam we cover: What goes into creating a sustainable building - what matters the most? How do builders or developers consider des…

1
Removing Carbon from the Atmosphere to Reverse Climate Change (feat. Nori) 53:46

2+ y ago53:46

53:46

We chat to Paul Gambill from Nori about their carbon removal marketplace using blockchain technology. This is the second episode in our two-part series about whether crypto and blockchain can be a positive force for addressing climate change. In this one we cover: The role of (and challenges with) carbon offsets Carbon avoidance offsets vs carbon r…

1
Crypto and Climate: Can Blockchain be a Force for Good? 27:28

2+ y ago27:28

27:28

Nick and Alex chat about the impact of crypto and blockchain on climate. Is crypto accelerating climate change or can it be a force for good? Hot off the heels of “the Ethereum Merge” we cover the following in this ep: What is cryptocurrency? What is blockchain? Why can crypto be so energy intensive? Can it be improved? Bitcoin and Ethereum (includ…

1
Night-time Solar: can we create Electricity in the Dark? 46:38

2+ y ago46:38

46:38

Nick and Alex chat to Ned Ekins-Daukes from UNSW about their breakthrough to create solar energy in the dark. This is a wide ranging chat about how solar panels could generate all of Australia's electricity at night, where climate solutions come from, the role of UNSW and universities in creating them, the legend of Martin Green, how to commerciali…

1
Solar Panel Recycling: Big Problem or Massive Opportunity? (feat. PV Industries) 44:14

3y ago44:14

44:14

We chat to Tim Dawson, the founder of PV industries, an Australian startup on a mission to recycle solar panels (and soon, batteries too!). In Australia we have A LOT of solar! Currently over 3 million (or 1 in 3) households have solar. Australia has over 25 GW of solar capacity now installed which on a per person basis is 1kw per person, 30% great…

1
Hydrogen: how Aussie startup Hysata is leading the hydrogen revolution 48:14

3y ago48:14

48:14

Alex provides a primer on hydrogen's role in our future clean economy and then we interview Tom Campey from Hysata (11:21) an Australian startup with a breakthrough electrolyser technology. ** If you enjoy the show, subscribe! We'd love it if you gave us a rating on Apple or Spotify! You can also follow us: on Instagram, Twitter, LinkedIn or send u…

1
The Australian Guide to Electric Vehicles (feat. CarsGuide) 46:46

3y ago46:46

46:46

Tom White from CarsGuide presents the state of play for electric vehicles in Australia. Tom has a very cool job! He gets to drive and review all the latest electric vehicles that are coming to Australia. He also recently released the EVGuide Report for all the latest stats, facts and figures on Electric Vehicles So what better person to chat to (af…

1
Reducing your personal carbon footprint (feat. One Small Step) 48:51

3y ago48:51

48:51

Lily Dempster from One Small Step chats to us about how to address your personal carbon footprint. Welcome to Season THREE of A Positive Climate! We’re excited to have a new season of another ten episodes, released fortnightly on Tuesdays in Australia. HIT THE FOLLOW / SUBSCRIBE button in your podcast app One Small Step is a mobile app that aims to…

1
A Positive Climate #Wrapped: 2021 in Review with Alex and Nick 40:03

3+ y ago40:03

40:03

Alex and Nick wrap up 2021 and the end of our second season with a wide ranging chat: the current state of cleantech, some BOLD predictions about the future, the zaniest climate solutions of 2021 and what we’re excited about for 2022! We cover a lot on this episode: Australia’s opportunity to be a renewable energy superpower; the hydrogen economy; …

1
E-bikes: the electric vehicle transforming our cities (feat. Zoomo) 45:24

3+ y ago45:24

45:24

Zoomo’s Mina Nada chats to Nick and Alex about the role of electric bikes in the future of our cities. Electric vehicles are a key pillar of our shift to zero carbon transportation. And when we hear the words "electric vehicles" most of us think about cars. But what about e-bikes? In the US for example they outsold cars by over 2 to 1 last year! An…

1
Australia's Role in the Battery Revolution (feat. Sicona) 39:40

3+ y ago39:40

39:40

Christaan Jordaan of Sicona and Novalith talks to us about Australia’s great opportunity in batteries. Yes, the sun doesn’t shine and the wind doesn’t always blow. But there’s lots of technologies for those in between times - some are old, some are new but all of them are getting much much better. Pumped hydro, hydrogen, thermal storage and of cour…

1
Fashion, but make it sustainable! (feat. Good on You) 43:18

3+ y ago43:18

43:18

Gordon Renouf from Good On You, chats to us about sustainable fashion. We all want to look good and stay up with the latest trends but how do we do this in a sustainable and ethical way? It's an area definitely worth solving as the global apparel industry accounts for an estimated 8% of emissions! That’s on par with the steel sector. It's a complex…

1
How will Amazon get to net zero emissions? 41:04

3+ y ago41:04

41:04

Charley Daitch from Amazon Web Services (AWS) joins us to talk about the work he’s doing in renewable energy and how Amazon will get to net zero emissions by 2040. Amazon is one of the world’s largest and best known brands. Their operations are both everywhere and nowhere at the same time. You see the website, the streaming service, the Kindles and…

1
Sea Forest's seaweed to stop cows burping 33:32

3+ y ago33:32

33:32

Today’s episode with Sam Elsom from Sea Forest continues our discussion on sustainable protein - can we have our steak and eat it too? We all know that our obsession with meat is not sustainable. The livestock sector accounts for around 15% of all emissions and in Australia alone we eat 120kg of meat per person per annum (the equivalent of eating D…

1
Great Wrap: Making Cling Wrap Great Again 31:50

3+ y ago31:50

31:50

Julia Kay, co-founder of Great Wrap chats to us about how we can make cling wrap GREAT again! Great Wrap has created Australia's first certified compostable cling wrap - it’s not only made from food waste but it also contains zero plastic. Great Wrap makes residential wrap (the sandwich wrapping kind), catering wrap and pallet wrap (the stuff heaps…

1
Drones to string together the clean energy transition (feat. Infravision) 29:56

3+ y ago29:56

29:56

Cameron Van Der Berg from Infravision explains how can drones help us tackle climate change. As the world transitions to 100% renewable energy we are going to need a whole lot more electricity transmission. Historically fossil fuel generators have always been located in centralised locations closer to central loads or cities. However, if our grid i…

1
Meat 3.0: is cultured meat the future? (feat. Vow Food) 45:59

3+ y ago45:59

45:59

Tim Noakesmith and George Peppou of Vow explain the carbon free revolution soon to come to our dinner plates - cultured meat. *** Welcome back to Season 2 of A Positive Climate! We’re thrilled to be bringing you another ten episodes EVERY TUESDAY covering everything from sustainable plastics, seaweed to stop cows burping methane and Australia’s pot…

1
Electric Vehicles: Busting the Myths (feat. JET Charge) 56:52

4y ago56:52

56:52

Tim Washington from JET Charge answers the question: why should we care about electric vehicles? They’re a better driving experience, they’re quieter, they’re better for air quality (especially important for when kids are walking by at exhaust pipe height), they’re soon to be cheaper, they are actually MORE convenient to charge and finally, unlike …

1
Zero Emission Aviation (feat. AMSL Aero) 31:36

4y ago31:36

31:36

Andrew Moore, co-founder and CEO of AMSL Aero chats to us about the future of transportation and how soon we might all be able to get around in flying taxis or eVTOLs (electric vertical take off and landing) as the industry calls them. AMSL Aero is an Australian company that's creating a flying air taxi which is powered by batteries and a hydrogen …

1
The future of farming with Sarah Nolet, Tenacious Ventures 38:52

4y ago38:52

38:52

Sarah Nolet is the CEO and a founding partner of Tenacious Ventures, Australia's first and only dedicated agrifood venture capital firm. Sarah chats to us about all the innovative and exciting agricultural technologies or as they say in the industry “agtech”. We cover the current sources of emissions within our food supply chain and some fantastic …

1
POSITIVE PRESS: The Tesla of Chicken 8:08

4y ago8:08

8:08

Welcome to our new podcast series The Positive Press by A Positive Climate! We'll be bringing you 5-ish minute episodes on good climate news. Bite sized, informative and a bit tongue in cheek, tune in to hear from Alex and Nick about the most uplifting stories of the week. This week we're covering NUGGS by SIMULATE - a plant based chicken nugget co…

1
Can an Aussie company deploy solar faster and cheaper? (feat. 5B Solar) 39:28

4y ago39:28

39:28

Solar energy is changing the world and 5B Solar has created an innovative solution for large scale sites - the MAVERICK. It's prefabricated, modular, rapidly-deployable and enables projects to be delivered more safely, three times faster and using half the land vs conventional technology. Chris McGrath shares the story of how he and his mate Eden c…

1
A solar panel that makes clean drinking water? (feat. Source Global) 36:46

4y ago36:46

36:46

Rob Bartrop has a great story, he’s an Aussie who was part of the development of the first large scale solar farms in Australia and has now found his way over to Arizona working for a company that's created the world's first renewable drinking water system - Source Global. The system includes a solar panel that doesn’t create electricity but instea…

1
BEER and HYDROGEN to solve the climate challenge (feat. SwitcH2) 30:38

4y ago30:38

30:38

Constantine Tsounis, co-founder of SwitcH2 Engineering has created a unique process that turns beer waste-water into hydrogen which can be used to power breweries or as a fuel for trucks and forklifts to get that beer into your hot hands! In this episode we discussed how Con and his co-founders developed this innovative tech plus how some great bee…

1
ZeroCo: Eliminating single-use plastic one household bottle at a time 44:28

4y ago44:28

44:28

Mike Smith from ZeroCo is trying to eliminate single-use plastic, one household bottle at a time. This episode explores the sheer scale of the plastic problem, the impact of plastic on not only the environment but also carbon emissions and how ZeroCo and their innovative business model is looking to address the problem at hand. Mike spins many a go…

1
GoTerra: using robotic insect farms to solve the problem of food waste 35:56

4y ago35:56

35:56

Olympia Yarger is the CEO and founder of Goterra, a startup using insects to redefine waste management. Goterra has created a unique solution which uses organic waste as feed to grow other usable products such as maggots that can be used in livestock feed and pet food. This episode explores just how Olympia became a maggot farmer, the issues surrou…

1
Meat 2.0: Is plant based meat the future? (feat. V2Food) 49:16

4y ago49:16

49:16

Welcome to the first episode of A Positive Climate - an uplifting podcast focussed on the cool ways to tackle climate change. We're Alex McIntosh and Nick Zeltzer, two mates in the Australian clean energy sector trying to showcase all the positives. In this episode we interview Nick Hazell, CEO and founder of V2Food. V2Food is an Australian company…

1
Trailer: A Positive Climate 2:17

4y ago2:17

2:17

Welcome to the podcast! A Positive Climate is an uplifting podcast about tackling climate change. An inspiring look at the products, people and technologies making a real difference. Hosted by Australian climate technology experts Nick Zeltzer and Alex McIntosh two friends on a mission to find the solutions to keep our existential crises at bay. We…

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Alex McIntosh & Nick Zeltzer Podcasts

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