Researchers at the University of Tokyo have developed an all-perovskite tandem solar cell using FAPbI3 nanoparticles, achieving 30.2% efficiency by combining a wide-bandgap top cell and a narrow-bandgap bottom cell. FAPbI3 is known for its high efficiency in solar cells but can transform into a non-functional phase, limiting performance. The researchers used a two-step method to fabricate the perovskite layers, stabilizing the material and improving durability. The four-terminal spectral splitting architecture of the device minimizes losses and efficiently utilizes the solar spectrum across both cells. The study suggests that carefully chosen spectral splitting wavelengths can lead to high efficiencies in both four-terminal and two-terminal perovskite solar cell architectures, with practical deployment options including outdoor photovoltaic systems and integration with concentrator photovoltaics.
Category: Electricity
Cut Emissions:
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UK solar developer secures $1.1 billion financing package
Enviromena, an independent power producer, has secured a £825 million ($1.1 billion) senior portfolio financing package to support the buildout of a 1 GW solar pipeline in the UK. The financing, underwritten by institutional investors, includes an initial £525 million with an additional £300 million available for expansion. With a development pipeline exceeding 3 GW and over 120 solar plants built to date, Enviromena aims to accelerate the transition to renewable energy and support the UK's energy transition. This landmark financing package is a significant step towards achieving climate solutions and reducing carbon emissions in the UK.
https://www.pv-magazine.com/2026/04/24/uk-solar-developer-secures-1-1-billion-financing-package/
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Q&A: China’s leadership calls for ‘strict control’ of fossil fuels
China's new 'opinions' document on climate policy emphasizes the importance of energy security and decarbonization, marking a significant step towards controlling fossil fuels and transitioning to cleaner energy sources. The document connects decarbonization efforts with energy security and industrial development for the first time at a high-level policy level, highlighting the role of low-carbon energy in China's energy system. It focuses on limiting coal use, increasing non-fossil energy consumption, and covering all new power demand with clean energy. The document also strengthens climate evaluation rules, with measures for reviewing and evaluating carbon-reduction efforts and grading local governments on their carbon-reduction efforts. Provinces failing to meet control indicators will face corrective measures, showing a commitment to accountability and compliance in achieving climate targets.
https://www.carbonbrief.org/qa-chinas-leadership-calls-for-strict-control-of-fossil-fuels/
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How Google turned its climate program into an AI booster
Google's carbon-intelligent computing platform is being used to connect data centers to the grid efficiently, allowing for energy-intensive tasks to be assigned when renewable energy is abundant. Other technology companies and utilities are also exploring demand response deals to address energy needs and support clean energy goals. Reports recommend more research into renewable and nuclear energy, as well as leveraging AI models to mitigate stresses on the energy grid. Demand response programs for data centers are seen as a way to enable the development of more clean energy in the future, with the potential to add 76 gigawatts of new load to the grid with minimal capacity expansion. Flexible data centers are transforming into valuable resources for integrating renewable energy and supporting the transition to carbon-free resources.
https://www.eenews.net/articles/how-google-turned-its-climate-program-into-an-ai-booster-2/
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CATL Announces 6-Minute Charging Time For Latest Battery
Advances in battery technology by companies like BYD and CATL are rapidly progressing, with new fast charging batteries being unveiled. CATL's latest third generation Shenxing Superfast charging battery addresses heat generation and dissipation, achieving a capacity retention above 90% after 1,000 cycles. The battery offers fast charging capabilities, with a 10 to 98 percent state of charge taking just 6 minutes and 27 seconds even at -30°C. CATL is also implementing innovative solutions to reduce power loss and increase charging station efficiency, with plans to build 4,000 integrated charge/swap stations by 2026. Their focus on rigorous scientific innovation and energy savings through lightweight technologies is driving the transition to full-scenario energy solutions in the mobility sector.
https://cleantechnica.com/2026/04/22/catl-announces-6-minute-charging-time-for-latest-battery/
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A 650-Megawatt Wind Farm Is Rising In Ukraine, Putin Or No Putin
Ukraine's leading energy provider, DTEK Group, is expanding its wind energy profile with a new 650-megawatt project supported by a grant from the Norwegian Agency for Development Cooperation. The move towards wind energy is driven by the resiliency of wind farms during wartime, as demonstrated by the Tyligulska Wind Power Plant near the Black Sea. DTEK is positioning its renewable energy ventures as key to Ukraine's energy resilience and European integration, with plans for further expansion in the future. Norway is providing aid to Ukraine for the Poltavska renewable energy project, which aims to decentralize the country's energy system and integrate with EU standards. Western Ukraine has ideal conditions for the production of green hydrogen due to its wind and PV resources, water availability, and access to gas infrastructure, with plans to export to European markets and partner with Austria for investment and production capacity.
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Dutch buildings could host 36 GW of façade solar capacity
The Netherlands Enterprise Agency (RVO) report highlights the potential for building façades to offer up to 36 GW of solar PV capacity in the country, particularly in buildings with unsuitable roofs or where architectural considerations are important. While façade PV is currently a niche solution due to high costs and regulatory complexity, it can complement rooftop systems in space-constrained or grid-limited areas. To increase uptake, the study recommends a targeted approach focusing on rooftop PV and selective use of façade systems, with more demonstration projects, improved transparency on costs, simplified permitting processes, and better communication of financial incentives. Municipalities and national authorities are encouraged to lead by example by deploying façade PV on public real estate.
https://www.pv-magazine.com/2026/04/23/dutch-buildings-could-host-36-gw-of-facade-solar-capacity/
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Maldives’ largest floating solar array goes online
Swimsol has successfully installed a 2.4 MW floating solar array at the Cheval Blanc Randheli resort in the Maldives, enabling the property to operate solely on solar power during daylight hours. The project utilizes the durable SolarSea platform, designed to withstand marine conditions with specially engineered anchors, high-quality components, and battery storage for optimized energy production and grid stability. This installation is expected to save the resort approximately $1.5 million annually in diesel costs, with a break-even point for SolarSea systems ranging between $0.65 and $0.85 per litre. With multiple SolarSea projects completed or in progress in the Maldives, Seychelles, and other island nations, this innovative solution is proving to be a sustainable and cost-effective option for transitioning to renewable energy sources in coastal regions.
https://www.pv-magazine.com/2026/04/22/maldives-largest-floating-solar-array-goes-online/
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To phase out fossil fuels, developing countries need exit route from “debt trap”
At COP30, over 80 governments are proposing an initiative to address the debt crisis in the Global South by financing the transition to renewables with public grants instead of loans. The current debt architecture traps developing countries in a cycle where fossil fuel revenues are needed to service debt, hindering efforts to phase out coal, oil, and gas. Policy recommendations include debt cancellation and ending international finance for fossil fuel expansion to address climate challenges. Proper funding for renewable energy and diversification is crucial, as many countries in the Global South lack support for making the energy transition. The broken debt system must be fixed to confront future climate shocks and ensure a successful transition to renewable energy sources.
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How Google turned its climate program into an AI booster
Google's carbon-intelligent computing platform is now being used to connect data centers to the grid efficiently, allowing for energy-intensive tasks to be assigned when renewable energy is abundant. The company has integrated demand response into utility contracts across the South and Midwest, making up to 1 gigawatt of its data centers' electricity demand available for curtailment. This pivot towards demand response programs is seen as a way to enable the development of more clean energy in the future, despite challenges such as policy uncertainties and increasing energy demands from artificial intelligence. Flexible data centers can aid in the deployment of renewable energy by offsetting its variability, transforming them from a burden on the grid to a valuable resource for integrating variable solar or wind power.
https://www.eenews.net/articles/how-google-turned-its-climate-program-into-an-ai-booster/