S4E9: Can Electricity Ever Be 100% Clean?

Electricity is becoming the backbone of the modern economy — powering transport, heating, industry, cooling, digital infrastructure and increasingly, AI. But as demand grows, can we really build a power system that is 100% decarbonised?

In this episode of Sustainability Forward, Wrishi and Carmine explore what “100% clean electricity” actually means, and why the final stretch of decarbonisation is often the hardest. They discuss the role of wind and solar, storage, grid expansion, demand flexibility, firm clean power, geothermal, market design and public acceptance.

The conversation also looks at real-world examples, including Uruguay’s near-100% renewable electricity system and South Australia’s rapid shift towards high levels of wind and solar. The episode opens with a striking comparison between a proposed 9 GW AI data centre campus in Utah, the Boeing Everett factory, and the electricity consumption of the entire state of Utah — a reminder that the clean power challenge is not just about today’s grid, but the much larger grid of the future.

A practical, accessible conversation on whether 100% decarbonised electricity is possible — and what it would actually take to get there.