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🗞️ Driving the news: California achieved a major renewable energy milestone in 2024, meeting 100% of its electricity demand with renewables for up to 10 hours on 98 of 116 days, according to a new study in Renewable Energy
• With battery storage systems supporting grid stability, renewables occasionally generated up to 162% of the grid’s needs, allowing exports and additional storage
• This challenges long-standing myths about the reliability of renewable energy
🔭 The context: The state doubled its battery capacity between 2023 and 2024, equivalent to the output of four nuclear plants, reducing reliance on fossil fuels by 40%
• Increasing solar adoption—where 38% of new installations now include batteries—has further helped meet evening energy demand
• While other states with high renewable penetration enjoy lower costs, California’s electricity rates remain high due to wildfire-related utility expenses
🌍 Why it matters for the planet: California’s success demonstrates that renewables, coupled with battery storage, can provide reliable, scalable energy solutions
• This model can guide global transitions away from fossil fuels, helping to reduce emissions and combat climate change
⏭️ What's next: Scaling battery storage, further electrifying transport and industries, and improving renewable capacity will be critical to maintaining momentum
• California’s advancements in grid technology and backup systems also provide insights for other regions
💬 One quote: “This study really finds that we can keep the grid stable with more and more renewables.” — Mark Z. Jacobson, Stanford University
📈 One stat: California’s fossil fuel usage for electricity dropped by 40% in 2024, thanks to increased renewable energy and battery adoption
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