Rooftop solar installations in Puerto Rico have surpassed natural gas to become the second-largest power generation source in the territory, accounting for 20% of all capacity. Distributed solar has outpaced all other energy sources in Puerto Rico over the past decade, with 81% of new generating capacity added between 2016 and 2025 coming from rooftop systems. The growth in solar capacity has not displaced other generation sources like petroleum, natural gas, and coal. Additionally, the adoption of distributed energy storage, including battery systems, has grown rapidly in response to grid resilience challenges, with more than 171,000 households and businesses installing battery systems by the end of 2025. The new CEO of LUMA, Janisse Quiñones, is focused on improving grid reliability in Puerto Rico, with industry group SESA optimistic about increased collaboration under Quiñones' leadership and working towards advancing policies that support rooftop solar and battery storage as key components of Puerto Rico's energy future.
Category: Electricity
Cut Emissions:
– Enhance Efficiency
– Shift Production
– Improve Electrical System
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Analysis: How ‘plug-in solar’ can save UK homes £1,100 on energy bills
Plug-in solar panels have the potential to save households money on electricity bills, with a payback period of around 5 years and potential lifetime savings of £1,100. The UK government's clean-energy measures include the introduction of plug-in solar panels, which can be easily installed on balconies and in gardens. If 3 million households adopt plug-in solar, it could generate 1.2 terawatt hours of energy, saving households over £330 million and reducing imported LNG. This technology not only benefits homeowners but also allows renters to participate in the clean energy transition and benefit from clean energy in their homes.
https://www.carbonbrief.org/analysis-how-plug-in-solar-can-save-uk-homes-1100-on-energy-bills/
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Rooftop solar reaches 20% of Puerto Rico’s generation mix
In 2025, rooftop solar capacity in Puerto Rico reached 1.5 GW, surpassing natural gas as the second-largest generation source, driven by electricity reliability issues. Distributed generation resources, particularly rooftop solar with battery systems, have seen significant growth. LUMA Energy, the island's grid operator, is working to transform and stabilize the grid. Distributed battery storage has also increased, reaching a total energy capacity of 2,864 megawatt hours. Despite setbacks like Hurricane Maria, rooftop solar generation has steadily increased, contributing to Puerto Rico's total generation capacity exceeding 7 GW.
https://www.utilitydive.com/news/rooftop-solar-puerto-rico-generation-mix-eia/816499/
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Nepal’s EV revolution pays off as oil crisis causes pain at pumps
In Nepal, high rates of electric vehicle (EV) adoption among minivan drivers have helped reduce the impact of rising fuel prices caused by global energy market turmoil. Nearly three-quarters of new cars sold in Nepal are now electric, with the country being a leader in EV adoption. The government has introduced policies to encourage EV adoption, including cutting import taxes for EVs and investing in charging stations. The shift to EVs not only cuts air pollution and helps progress towards net-zero emissions goals but also shields the country's foreign currency reserves from spikes in global oil prices and improves public transport. Public and private investment is crucial to reduce dependency on fossil fuels in Nepal, with a need for policy changes to support the transition to larger electric buses and improve the electricity infrastructure for EVs.
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California approved a gas pipeline solution. Now comes the hard part.
California utilities are facing challenges in transitioning away from fossil fuels, with Senate Bill 1221 proposing the creation of "decarbonization zones" to retire gas pipelines and promote electric appliances. Despite potential exclusions based on certain criteria, the bill aims to realign incentives to prioritize climate goals over profit. The success of SB 1221 hinges on regulators using their authority to focus on pollution burden, vulnerability, and transparency in project data, ensuring that climate action aligns with lower bills and prudent spending of ratepayer dollars. This bill represents a step towards meeting climate goals and controlling costs associated with gas pipeline replacements, with a specific focus on low-income communities.
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What If The US Redirected The Money From The Iran War To Clean Energy?
The section discusses the potential benefits of redirecting $200 billion from the Iran War efforts towards clean energy projects in the US, emphasizing the importance of investing in renewables for energy security, economic stability, and reduced emissions. It contrasts wasteful war spending with the potential for a Just Transition to clean energy, decentralized grids, and incentives for electric vehicles. The article also highlights the low operating costs and stability of renewable energy sources like solar and wind power, stressing the need for government intervention in funding research and innovation for electrification. Innovations in the EV battery sector, shared charging hubs for heavy-duty trucks, and submersible hydropower in the Great Lakes region are discussed as key solutions for climate action, along with grid enhancements and free training for clean energy installers. The focus is on the importance of shifting towards a clean energy paradigm for a more sustainable and secure future, showcasing the positive trend towards sustainable energy solutions in the US.
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TNO unveils 12.4%-efficient perovksite solar tile
The Dutch research institute TNO has developed the world's first perovskite-based roof tile, achieving up to 13.8% efficiency on standalone modules and 12.4% on curved surfaces. The flexible modules were produced using TNO's experimental roll-to-roll platform, with plans to commercialize the solar tile through its spinoff company Perovion Technologies. This building-integrated photovoltaic (BIPV) tile based on perovskite solar cell technology is a significant development in the renewable energy sector. The use of roll-to-roll manufacturing for perovskite solar cells is seen as a promising pathway to lower production costs and high-volume manufacturing for emerging thin-film technologies, offering potential solutions for climate change mitigation.
https://www.pv-magazine.com/2026/04/02/tno-unveils-12-4-efficient-perovksite-solar-tile/
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UNSW study finds tracker-based PV systems experience higher UV degradation than fixed-tilt arrays
New research from the University of New South Wales highlights the significant impact of UV radiation on PV module degradation, with tropical and desert regions facing the highest stress. The study emphasizes the need for climate-specific testing and system design to accurately assess reliability. The researchers developed a global UV irradiance model that shows varying degradation rates based on deployment location and system design. Single-axis tracking systems in high-irradiance regions can experience up to 1.5 times more UV radiation and higher degradation rates compared to fixed-tilt installations. The study underscores the importance of considering UV exposure, temperature, humidity, and atmospheric conditions in assessing PV module performance. The article discusses the impact of UV-induced degradation on photovoltaic systems in arid and tropical climates, with rates reaching about 0.25-0.35% per year. A high-precision model to estimate UV radiation in PV systems was presented in the paper "Closing the UV-Induced Photodegradation Gap Through Global Scale Modeling of Fixed Tilt and Tracking Photovoltaic Systems." The study aims to connect fundamental degradation mechanisms with system-level impacts, combining accelerated testing with modeling to quantify energy yield losses in diverse climates and system designs. This research is part of a broader effort to understand how degradation affects real-world energy production in photovoltaic systems.
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Giant copper project signs deal for Australia’s biggest off-grid hybrid renewables facility
Harmony Gold and Aggreko have partnered to develop a renewable power facility at the Eva copper mine project in Queensland, Australia. The facility will consist of a 118 MWp solar farm, a 250 MWh battery, and a 104 MVA thermal power plant, with the goal of reaching net zero emissions by 2035. Future plans may involve incorporating wind energy and connecting to the grid through the Copperstring transmission project. This long-term commitment to renewable energy showcases a significant step towards sustainable practices in the mining industry.
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Nigerians bet on solar power as global oil crisis hits wallets
Africa, particularly Nigeria, is experiencing a surge in solar power installations as a response to soaring fuel prices and unreliable power supplies. The conflict in the Middle East has further accelerated the adoption of solar energy, with installations in Africa increasing by 54% in 2025. Businesses and consumers are recognizing the cost-saving benefits of transitioning to solar power, with calls for governments to adopt binding targets to phase out fossil fuels and invest in clean energy for a stable future. Lower-cost solar products are now available, making solar power a viable and sustainable alternative to traditional energy sources in Nigeria and across the continent.