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Submission Summary: 0 pending, 2 declined, 2 accepted (4 total, 50.00% accepted)

Submission + - China on track to reach clean energy targets six years ahead of schedule (electrek.co)

Uncle_Meataxe writes: China, the world’s largest pollution emitter, will likely reach its 2030 clean energy targets soon. The country is on track to achieve its target of 1,200 GW in wind and solar installations this month, about six years ahead of the original timeline of 2030. Solar and wind power have seen exponential growth. According to a recent report from Australia-based Climate Energy Finance, China is the current world leader in renewable energy capacity.

Solar power led capacity additions, with 79.2 GW installed between January and May 2024, accounting for 68% of total new capacity. A total of 19.8 GW of wind capacity has been added so far in 2024, or about 17% of the total new additions.

China's clean energy push has been driven by government policies and market forces. The government heavily subsidizes renewable energy projects and implements regulations to curb carbon emissions. Advancements in technology have made solar and wind power cost-effective further accelerating their adoption. Though China has become a global leader in clean energy adoption, it still relies heavily on coal-fired power plants and will need to replace those facilities with sustainable options in order to truly offset its CO2 emissions.

Submission + - California's grid passed the reliability test this heat wave (sacbee.com)

Uncle_Meataxe writes: California’s power grid handled a nearly three week long record-setting heat wave with few issues. The heat wave was the hottest 20-day period on record around Sacramento and set an all-time temperature record of 124 degrees in Palm Springs. Emergency alerts and calls for voluntary conservation were avoided this time around.

Officials credit years of investment in renewable energy, especially battery storage that store solar power for use when the sun stops shining.

As recently as August 2020, Californian suffered a heat wave that prompted rolling blackouts for several hundred thousand citizens. California Independent System Operator (CAISO) last issued calls for voluntary conservation two years ago, during a 2022 heat wave. Since then, roughly 11,600 megawatts of new renewable energy sources have come onto California’s electricity grid, including 10,000 megawatts of battery power, enough to power 10 million homes for a few hours. Second only to China, California is now home to the most grid batteries in the world.

Submission + - Hyundai & Kia's new 'Uni Wheel' system could revolutionize EV de

Uncle_Meataxe writes: Two articles
https://electrek.co/2023/11/29... and
https://insideevs.com/news/698... describe Hyundai and Kia's new ‘Uni Wheel’ drive system that could revolutionize EV design

Described by its makers as a “paradigm-shifting vehicle drive system,” the Uni Wheel moves the main drive system components to the vacant space within an EVs wheel hubs. The approach utilizes a planetary gear configuration consisting of a sun gear in the center, four pinion gears on each side, and a ring gear surrounding everything. Traditional ICE vehicles utilize CV joints, but by moving them closer to the wheels requires a short drive train length and as a result, a decrease in efficiency and durability – especially over bumpy terrain. Hyundai and Kia’s Uni Wheel system on the other hand, can transmit power with almost zero changes to efficiency, regardless of wheel movement. Advantages include more platform space and more room within an EV’s interior. When this system may be integrated into an actual EV remains unclear, but Kia and Hyundai have already registered eight patents related to the technology. A YouTube video is instructive https://www.youtube.com/watch?....

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