In 2020, Victoria still relied on coal for 69% of all electricity generation; however, the Victorian government has set a target of 40% renewable energy production by 2025 and 60% by 2030. If we harness our plentiful resources, we could be leading the charge in renewables. Led by the Gippsland Tech School, students are being challenged to design an entire city powered by renewables like hydrogen, solar, and wind energy.
“One of our research goals is to create transparent solar cells with a natural appearance so that they can be used as windows that generate solar power.” For solar window applications, a perovskite film with a thickness of no more than 600 nm is sufficient to achieve maximal light absorption. But reduced thickness also reduces potential power conversion efficiency.
Australia had installed more renewable generation infrastructure in the three years leading up to 2020 than the thirty years prior. While these are positive steps, Australia also has the highest per-capita greenhouse gas emissions of any other advanced economy, and is nowhere near close to reaching its Paris Agreement goals. Victoria’s Gas Substitution Roadmap is a step in the right direction.
How do we transition to a zero carbon energy market? Simon Holmes à Court believes we have much to learn from other countries with more advanced thinking in this space – they have spent the past decade thinking not about whether they should transition, but how. The 2017 Finkel Review created a blueprint to move Australia away from its high-emissions market by ramping up renewables and energy storage uptake. Are we on track?
The energy we obtain from burning coal today comes from the energy that prehistoric vegetation absorbed from the Sun millions of years ago. But it instead only takes microseconds to convert sunlight directly into electricity. Global electricity consumption continues to accelerate with economic growth and industrial demand. Around 23 trillion kilowatt hours of energy were consumed in the single year of 2018 – the equivalent power needed to turn on 1,800 billion LED bulbs for an hour. To provide our growing population with the level of energy the developed world is used to, we would need to generate 60 trillion kilowatts worldwide. Power plants as we know them cannot satisfy these demands; however, the sunlight energy striking the Earth’s surface in an area the size of Texas alone could provide up to 300 times the total power output of all the power plants in the world. “Solar energy has the greatest potential to fill this energy gap,” says Dr Wallace Wong.
