Researchers from UNSW and DAS Solar have developed a zero-busbar metal grid optimization approach for tunnel oxide passivated back-contact (TBC) silicon solar cells, reducing silver consumption by 3-4 mg/W. The first TBC cells produced using this technique have achieved efficiencies exceeding 27%. The ZBB design cuts silver paste consumption significantly, supporting large-scale industrialization of TBC solar cells. DAS Solar has begun mass production of ZBB TBC cells with silver consumption of approximately 6 mg/W and peak conversion efficiency exceeding 27%. The cell design includes textured front surface with passivation layers and relies on p-type and n-type polycrystalline silicon at the rear side. The article also discusses the benefits of larger busbar segmentation and efficient current routing in improving solar cell efficiency, comparing ZBB cells with pad-based cells. The study found that ZBB cells offer at least a 0.1% efficiency gain over pad-based cells, with potential for further improvement with reduced silver paste consumption. DAS Solar introduced a circuit-model-based method to detect hot-spot risks in TOPCon back-contact modules, addressing limitations of existing approaches.
Category: Electricity
Cut Emissions:
– Enhance Efficiency
– Shift Production
– Improve Electrical System
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China solar exports hit all-time record in March as Africa, Asia demand jumps
In March 2026, China exported a record volume of solar components, totaling 68 gigawatts in solar capacity, as fossil fuel prices rose and tax rebates for clean technology ended. This surge in demand led to 50 countries setting all-time records for Chinese solar imports, with African nations experiencing a significant increase in demand. Despite China's decision to end tax rebates, African countries are continuing to rapidly expand their solar energy capacity, with prices expected to rise but not reverse the clean energy transition. Asian nations, including India, also increased their imports of Chinese solar components, reflecting a global trend towards solar energy adoption.
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REPORT: U.S. Adds 10 GWh of New Energy Storage Capacity in 1st Quarter, Best Q1 on Record
The U.S. energy storage industry experienced a record first quarter in 2026, installing 9.7 GWh of new capacity and seeing a 32% increase year-over-year. By 2030, over 610 GWh of energy storage is expected to be installed, driven by the attractiveness of solar and storage due to their insulation from fuel price swings and increasing domestic production. Data centers, tech companies, and states like Texas, Arizona, and California are leading the surge in energy storage deployment, although federal permitting delays could pose a challenge. Additionally, in 2021, 515 MWh of residential storage was installed alongside C&I storage, with the Solar Energy Industries Association (SEIA) advocating for clean energy policies and job creation in the solar industry. SEIA, founded in 1974, collaborates with over 1,200 member companies to promote competition and growth in the solar and solar + storage industries.
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US Solar & Storage Manufacturers Flood DC To Highlight Global Leadership & Jobs
The US solar power and storage industry has experienced significant growth, with 280,000 and 80,000 people employed in each sector respectively. Recent investments in American-made solar and storage technologies, totaling $43.1 billion across more than 40 states, have strengthened the country's energy security and economy. These investments are crucial for delivering affordable and dependable energy, supporting American jobs, manufacturing, and long-term energy security. With a focus on strong domestic supply chains and the ability to build energy infrastructure at scale, solar and storage technologies are key to delivering reliable, low-cost power as electricity demand accelerates. Stable policy, predictable permitting, and continued support for domestic manufacturing are essential for maintaining America's energy leadership in the global market.
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Fujiyama Power to set up 1.2 GW TOPCon solar cell manufacturing facility in India
Fujiyama Power Systems is planning to establish a 1.2 GW TOPCon solar cell manufacturing facility in Madhya Pradesh, India, to enhance its presence in the on-grid rooftop solar segment. The facility, set to commence commercial production in the first quarter of fiscal year 2028, will be financed through debt and internal accruals. This expansion is aimed at reducing cost volatility, securing DCR-compliant solar cell supply, improving margins, and solidifying the company's position in India's rooftop solar market. Being included in the Ministry of New and Renewable Energy's ALMM-II list positions Fujiyama Power Systems to benefit from the increasing demand for DCR solar panels under the Pradhan Mantri Surya Ghar Muft Bijli Yojana.
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California Affirms 25 GW Goal For Offshore Wind, Trump Or Not
California has 200 gigawatts of offshore wind potential, with a goal of 5 gigawatts by 2030 and 25 gigawatts by 2045. Despite Trump's attempts to halt offshore wind projects, federal judges have affirmed that work can continue on existing projects. Governor Newsom supports offshore wind development as a clean energy source for California. The Trump administration's halt to approvals for new onshore wind projects has put $50 billion in investments and 150,000 jobs at risk, with 150 projects impacted in Texas alone. Offshore wind stakeholders in California are still moving forward with plans despite federal energy policy changes, participating in the global industry and making strides in infrastructure investments and workforce training.
https://cleantechnica.com/2026/05/23/offshore-wind-california-global-agreements/
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Earth.org Debunks Clean Energy Myths
Large corporations and the current US government are spreading false information to attack renewable energy, electric vehicles, and progressive values, claiming they are costly and unreliable. However, recent data shows that renewables are cheaper, with the shift saving $467 billion in global fuel expenditures in 2024. The cost of solar and wind is zero, making them a more sustainable and cost-effective option compared to fossil fuels. Additionally, new sodium-ion batteries for energy storage are reducing costs, with the US projected to add 24 gigawatts of utility scale storage in 2026. Renewable energy is surpassing coal as the world's largest electricity source, creating more jobs and having a smaller environmental footprint. Despite disinformation, a calm and rational presentation of facts is key to changing minds and driving the transition to clean energy.
https://cleantechnica.com/2026/05/23/earth-org-debunks-clean-energy-myths/
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Europe creates map to locate available capacity in power grids
Capacitypedia is a new pan-European digital platform launched by ENTSO-E and the DSO Entity to improve transparency and access to information on the hosting capacity of European electricity grids. It aggregates data from transmission and distribution system operators across Europe, aiming to help developers, utilities, investors, and industrial users locate and compare capacity availability. The platform focuses on improving visibility of grid capacity for renewable energy projects, energy storage, and electric vehicle charging infrastructure. Capacitypedia includes an interactive map showing countries providing public information on grid capacity and promotes a standardized interpretation of hosting capacity across Europe.
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DeBriefed 22 May 2026: UN adopts landmark resolution | Trump takes on ‘RCP8.5’ | Climate migration
The UN has adopted a resolution supporting a world court opinion stating countries have a legal obligation to address climate change, urging transitioning away from fossil fuels and enhancing multilateral cooperation. The UK Climate Change Committee highlighted the need for investing in adaptation to produce long-term savings. Countries are aiming to cut emissions by 87% by 2040 and focusing on electrifying everything to decarbonize electricity generation. The future of mobility is seen as a part of the solution to climate change, with migration being a key aspect of adaptation, emphasizing the need for sustainable recovery plans post-pandemic to ensure long-term emission reductions and the role of renewable energy in driving down emissions.
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Solar and wind generated more electricity globally than gas power for the first time in April
In April 2026, a new global record was set as electricity generated from wind and solar reached 531 TWh, surpassing gas-fired power plants supplying 477 TWh for the first time. This milestone, with wind and solar accounting for 22% of global electricity generation compared to gas at 20%, is reshaping the global power mix and weakening the case for imported gas. The sustained growth in renewable energy is increasing pressure to accelerate deployment, even amidst recent energy crises. This shift highlights the importance of prioritizing renewable energy solutions to combat climate change and reduce reliance on fossil fuels.