
Rosemary Barnes
@engwithrosie • 1,987 subscribers
Engineer | Consultant in energy transition technology | Renewables and sustainability expert | "Engineering with Rosie" YouTube channel
Videos

A 900 MW water battery in the Swiss Alps, built for €2B over 14 years, is operational. It uses two reservoirs at different elevations to store energy by pumping water uphill and generate power as it flows back down. It's a huge 20 GWh, enough to power 400,000 EVs.
Rosemary Barnes51,182 просмотров • 1 год назад

If every house in Australia turned on a toaster simultaneously, it'd add nearly half of the grid's average load, causing it to crash. Yet, no one worried about the electricity grid when electric toasters became widespread. So why do we still think that EVs will crash the grid?
Rosemary Barnes38,828 просмотров • 1 год назад

Nuclear for Australia? Too slow, too expensive, and it doesn't fit with renewables. By 2033, 90% of our electricity could already come from renewables. Why solve problems we don't have—like needing "baseload"? In South Australia, rooftop solar sometimes meets 100% of demand.
Rosemary Barnes31,407 просмотров • 1 год назад

Is the energy transition really increasing mining needs? A typical petrol car burns 17,000 liters of fuel over its life, while an EV needs just 160 kg of metals in its battery—99% less mining. Even without battery recycling (and we will recycle), clean tech mining is far lower.
Rosemary Barnes18,308 просмотров • 1 год назад
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