Chinese cities like Zhenjiang, Qingdao, Guangzhou, and Shenzhen are leading the way in implementing climate solutions at the city level. Initiatives include reducing food waste, developing zero-waste cities, managing energy and carbon emissions, and promoting green industries. Shenzhen has become a world-class 'supercharging city' with a high market penetration of EVs and plans to pilot vehicle-to-grid interaction. Dalian is increasing its renewable energy capacity and developing clean energy industries, including hydrogen-based energy. Wuhan has completed a sponge city pilot project to improve flood control and ecological functions, while also focusing on green, low-carbon development. Municipal leaders in these cities are emphasizing the importance of environmental protection and sustainable development, showcasing practical blueprints for international climate action and the importance of local solutions in achieving global net-zero pathways.
Category: Electricity
Cut Emissions:
– Enhance Efficiency
– Shift Production
– Improve Electrical System
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Solar and wind reach 100 pct of demand in biggest isolated grid, as batteries allow it to keep its thermals on
Western Australia's isolated grid achieved 100% of demand with solar and wind energy, supported by growing battery storage. The state's high levels of rooftop solar and variable renewables are driving the green energy transition, with coal generators expected to retire by the end of the decade. South Australia is also making progress towards 100% renewables, aiming for "net" renewables by 2027. As the grid transitions, alternative solutions like synchronous condensers and grid forming inverters are being considered to ensure stability. The ultimate goal is to achieve 100% renewables without the need for traditional generators, emphasizing the importance of preparing for a coal-free grid by 2031.
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More US States Are Promoting Balcony Solar
Balcony solar is a concept that allows apartment dwellers to generate their own electricity by hanging solar panels on their balcony railings, democratizing the energy supply and reducing utility bills. States like Utah, New York, and Pennsylvania are passing legislation to allow for the installation of balcony solar systems, seen as a game changer for renters and low-income individuals. Despite some utility companies' hesitancy due to grid issues and threats to their business model, the growing interest in balcony solar systems at the state level is a response to federal negativity towards clean energy. Legislation exempting balcony solar systems from interconnection agreements with utility companies, along with a typical break-even point of around 3 years, is expected to make balcony solar more accessible in the future.
https://cleantechnica.com/2025/12/01/more-us-states-are-promoting-balcony-solar/
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Building the perfect perovskite, one layer at a time
Researchers at the University of Cambridge have developed a precise layer-by-layer vapor-phase growth method for halide perovskites, specifically CsPbBr3, on a 2D perovskite single crystal. This advancement could lead to more thermally stable perovskite solar cells, with scalable, solvent-free, and industrially compatible processes suitable for various optoelectronic applications. The research also demonstrated that uniform thickness control allows for tunable band offsets, improving charge transport and recombination dynamics. The team is now focused on integrating these structures into fully functioning devices such as solar cells and LEDs, offering promising solutions for advancing renewable energy technologies.
https://www.pv-magazine.com/2025/12/02/building-the-perfect-perovskite-one-layer-at-a-time/
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Ethio Telecom Expands Its EV Charging Network with the Launch of a Third Super-Fast Smart Station in Addis Ababa
Ethiopia has made significant strides in promoting electric vehicles by restricting the import of internal combustion engine vehicles and investing in electric vehicle infrastructure. The country has seen a surge in electric vehicle registrations, with over 60% of new vehicle registrations being electric in 2024. Ethiopia's energy mix is already over 90% sourced from renewables, with projects like the Grand Ethiopian Renaissance Dam contributing clean electricity. Ethio Telecom has launched electric vehicle charging hubs with ultra-fast and super-fast chargers to support the growing electric vehicle ecosystem in the country. This transition to electric vehicles and renewable energy not only helps reduce emissions and improve air quality but also frees up scarce foreign currency resources by substituting imported fossil fuels with locally generated clean electricity, showcasing that electrification is not just happening in Europe but also in countries heavily dependent on fossil fuel imports like Ethiopia.
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Historic icons, modern energy: Why heritage buildings need solar roofing
Historic buildings in the UK are facing pressure to reduce their carbon footprint, with sustainable retrofits like LED lighting and heat pumps being easily implemented. However, solar technology integration faces challenges due to visual impact, despite UK heritage guidance allowing for solar integration. Building-integrated photovoltaic (BIPV) solar roofs offer a solution by blending into the architecture, as seen in examples like York Minster, Westminster Abbey, and Canterbury Cathedral. Roofit.Solar CEO Andres Anijalg emphasizes the importance of marrying historic buildings with modern climate solutions, showcasing the potential for genuine, scaled climate leadership that protects both the history of buildings and the planet they stand on.
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All-perovskite tandem solar cell with dipolar passivation achieves 30.1% efficiency
Researchers in China have developed a dipolar passivation method that reduces defects and improves charge transport in solar cells based on narrow-bandgap tin lead perovskite, enabling the fabrication of all-perovskite tandem solar cells with efficiencies of around 30% and enhanced stability. The dipolar passivation strategy strengthens the ohmic contact, promotes efficient hole injection into the hole transport layer, and repels electrons from the perovskite interface, reducing non-radiative recombination and carrier transport losses. The cell achieved a power conversion efficiency of 24.9% and retained around 87% of its initial efficiency after 1,025 hours, showing promising long-term stability. The researchers aim to further improve the dipolar passivation method for enhanced stability in tandem devices, contributing to the ongoing efforts to develop more efficient and sustainable solar energy solutions.
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Australia’s most advanced renewable grid is its most secure, but NSW must scramble as it nears “no coal” scenario
South Australia is leading the way in renewable energy with a 75% share of wind and solar, making it the most secure state grid in Australia. The state has successfully transitioned away from coal-fired power stations and has implemented innovative solutions such as the Tesla big battery and synchronous condensers. South Australia is on track to reach 100% net renewables and will be able to run its grid without gas plants. However, other states like NSW and Victoria are facing challenges with the closure of aging coal-fired generators and are scrambling to secure replacement capacity for critical grid services. AEMO warns of potential risks and the need for further action to ensure system stability in the future. The closure of coal-fired power plants in Australia, such as the one in NSW, is expected to lead to a "credible no coal scenario" by 2031/32. Similar closures are planned in Victoria and Queensland in the coming years. The transition to a high renewable grid is essential for Australia to meet its 2030 and 2035 climate targets. AEMO warns that new investments and reforms are needed to maintain system security during this transition, including utilizing renewable energy sources like rooftop solar. Industry and governments are working together to manage the transition points and ensure system security.
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Construction kicks off on major upgrade of transmission links to host renewables and clear path for coal exit
Construction has begun on the Clean Energy Link – North project in Perth's northern suburbs, the largest investment in Western Australia's electricity transmission infrastructure in over a decade. The project includes major upgrades to the northern section of the South West Interconnected System (SWIS) to facilitate the addition of renewable energy resources, doubling capacity in some sections and enabling the flow of wind and solar energy. This project is part of the state government's plan to exit State-owned coal by 2030 and make Western Australia a renewable energy powerhouse. The North project is set to be completed by the end of 2027, creating over 400 jobs and contributing to the state's transition towards clean energy solutions.
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Another EV Charging Hub Running On Renewable Energy Launches In California
Terawatt Infrastructure has launched a new fleet charging hub in Rialto, California, with 18 fast chargers for fleet vehicles powered by 100% renewable energy. The hub includes amenities like a driver lounge, license plate recognition for seamless entry, and 24/7 security, part of Terawatt's vision to create a connected, electrified network for EV fleets. Solar power canopies at the hub generate electricity, provide shade, and protect vehicles from precipitation, contributing to emissions reduction. The installation of new EV chargers not only benefits the environment by reducing harmful air pollution but also creates jobs in the EV industry, with Southern California employing 119,200 workers in the sector.