Tandem PV has achieved a record-breaking conversion efficiency of 30.4% with their perovskite glass tandem configuration module, surpassing the 30% efficiency barrier and showing promising durability with a 1% degradation rate per year. The company, with former U.S. Energy Secretary Jennifer Granholm on board, aims to quickly scale production modules that could achieve 28% efficiency. Their design allows for integration with various cell technologies, ensuring continued improvement in the future and providing more affordable and reliable clean energy solutions for America.
Category: Electricity
Cut Emissions:
– Enhance Efficiency
– Shift Production
– Improve Electrical System
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Trina Solar announces 907 W tandem solar module with 29.2% efficiency
Trina Solar has successfully developed a high-efficiency tandem solar module with a record-breaking conversion efficiency of 29.2%, utilizing n-type TOPCon crystalline silicon and perovskite cells. This module, designed for mass production, aims to absorb a wider solar spectrum and has passed reliability testing. The company plans to ramp up production by 2026, showcasing their world-leading performance in efficiency and power output with their tandem solar cell technology.
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Philadelphia clean energy campaign turned millions invested into billions saved. Here’s how.
The Philadelphia Energy Campaign has successfully created over 11,000 jobs and $1.3 billion in economic investment since 2016, while also generating $1.4 billion in energy savings for the city and its residents. Programs like Built to Last and Solarize Greater Philadelphia have provided low-income homeowners with access to housing-repair and solar installation programs. Funding mechanisms such as Commercial Property Assessed Clean Energy and the Philadelphia Green Capital Corp have supported energy efficiency and renewable energy projects, blending public and private financing. Despite the loss of federal funding, the campaign remains resilient and focused on advancing climate solutions through collaboration and political support.
https://www.utilitydive.com/news/philadelphia-energy-campaign-economic-impact-report/821584/
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Battery Storage Boom Brings Free Electricity To Australia
The increase in battery energy storage systems in Australia, along with the growing adoption of BESS globally, is leading to lower electricity costs for residential and small business owners. Grid-scale and residential battery installations are surging, displacing more expensive gas and hydro power and reducing reliance on fossil fuels. The affordability of batteries and the shift towards longer-term storage are key components in the transition to clean energy. Programs like the Solar Sharer initiative demonstrate the potential for renewable energy to outcompete traditional sources, showcasing the importance of battery storage in maximizing efficiency and reliability of renewable energy systems.
https://cleantechnica.com/2026/06/01/battery-storage-boom-brings-free-electricity-to-australia/
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Wind, solar and battery records tumble on last day of Autumn in Australia’s most coal dependent grid
Queensland achieved a new record of 79.5% instantaneous renewables plus storage share of consumption on May 31, 2026, surpassing the previous high of 78.4% in April 2026. This increase was attributed to the use of batteries, exports, and curtailment to manage the midday surplus, showcasing the growing importance of storage in NEM operations. Despite being the most coal-dependent grid in Australia, Queensland's transition towards higher renewable energy usage is evident. The significant increase in battery share of consumption highlights the state's progress towards a more sustainable energy future.
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“Just as common as solar-hybrids:” Most developers now including batteries in plans for wind
Wind developers in Australia are increasingly incorporating battery storage into their projects to address the challenge of low prices in the energy market. Battery manufacturers are offering longer warranties to support wind and solar hybrids, with some warranties extending up to 30 years. Turbine manufacturers like Goldwind and Envision are already testing wind and battery storage systems to better understand their potential in modern grids. The trend towards wind and battery hybrids is expected to become as common as solar-based hybrids in the future. Battery sizing for wind farms is complex, with considerations for revenue cannibalization and the timing of power generation influencing storage needs. Hybrid configurations offer benefits such as utilizing existing sites and monetizing curtailed energy, with considerations for turbine level power limits being important in modeling DC-coupled hybrids.
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Chile EV Sales Report: 10% Market Share Reached in April Thanks to 247% Growth!
Chile has been a leader in adopting new technologies in Latin America, with the highest per-capita deployment of solar and a comprehensive network for electric vehicles (EVs). Despite lagging in passenger EV adoption, the country saw a significant increase in EV sales after a rise in gasoline prices due to Trump's war in Iran. EV sales in Chile have grown significantly, with the market shifting from BEV-heavy to near parity between BEVs and PHEVs. This rapid growth in EV sales has been unique to Chile compared to other countries in the region. The increase in electric vehicle adoption in Chile has been significant, with Changan leading in April thanks to its affordable Cs55 PHEV. BYD and Tesla also hold top positions in the market. Chile has comprehensive efficiency regulations for vehicles, with stricter requirements coming in 2027 and 2029 for different categories. The availability of hyper-affordable ICEV models in Chile has slowed the transition to electric vehicles. Despite this, the Chilean market remains competitive and diverse in terms of EV models available. Chile's vehicle market ecosystem is competitive with affordable ICEV models, positioning the country to adopt EVs on a larger scale in the future. Despite a decline in ICEV sales, Chile has been a leader in electric bus adoption. The country may switch from gas and diesel to electrons due to economic incentives and energy independence from solar farms. Chile is on track to potentially become the first country in the region where combustion vehicle sales are falling despite total sales growing.
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Over 9,900 Electric Buses Operating In Latin America Now
The electrification of transportation extends beyond personal vehicles to include fleet vehicles like buses, which are crucial in reducing pollution and combating climate change. Diesel buses emit harmful air pollution and contribute to climate change, while electric buses powered by renewable electricity offer a sustainable solution to reduce reliance on fossil fuels. Cities like Santiago, Chile and Copenhagen, Denmark are leading the way with large numbers of electric buses, demonstrating the potential for a future where all buses are electric and contribute to a cleaner, healthier environment.
https://cleantechnica.com/2026/05/31/over-9900-electric-buses-operating-in-latin-america-now/
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California — Lowest Wholesale Electricity Prices in USA
California has achieved the lowest wholesale electricity prices in the US, with no blackouts since 2020, thanks to the success of solar, wind, and water power. WindWaterSolar has met over 100% of the California ISO grid's electricity demand for an average of 4.9 hours a day in 2026, showcasing the potential of renewable energy. Despite high retail electricity prices for other reasons, the abundance of cheap wholesale electricity from sources like sunshine, wind, and water is a key factor in keeping prices low. This renewable energy success in California is a significant win for clean energy solutions.
https://cleantechnica.com/2026/05/30/california-lowest-wholesale-electricity-prices-in-usa/
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Connecticut Approves Plug-In Solar – It’s So Exciting!
Connecticut is set to become the sixth state to allow plug-in solar panels, enabling residents to easily add renewable energy to their homes without costly connection agreements with utility companies. The legislation will allow for portable solar panels that can be plugged into household electrical sockets, ideal for renters, apartment dwellers, and those with restrictions on traditional rooftop solar installations. The bill also includes provisions for extending solar programs, establishing new rules for solar use, and implementing incentives for low-income community solar and residential energy storage. This move towards small-scale solar capacity is part of a broader effort to promote the development of residential, agricultural, and corporate solar power in Connecticut, with an aggregate target of 180 megawatts per year starting in 2028, ultimately aiming to lower utility bills, improve system reliability, and expand consumer protection while gradually introducing clean energy solutions.
https://cleantechnica.com/2026/05/30/connecticut-approves-plug-in-solar-its-so-exciting/