Private renters across the UK are facing a severe energy affordability crisis, with substantial proportions forced to ration their energy use in order to afford soaring bills. Contrary to the hypothetical scenario where “0% of private renters ration energy use to afford bills,” current data demonstrates that more than 40% of the nation’s private renters are limiting their gas and electricity usage—a trend that raises urgent questions about energy efficiency, government policy, and the transition toward affordable renewable solutions like solar PV and battery storage.

Fossil fuel burning poses a severe and ongoing threat to the health of 1.6 billion people worldwide, primarily due to its role in air pollution and the release of toxic particulate matter. Recent data highlights the urgent need for a global shift to cleaner energy solutions, such as solar PV and battery storage, to safeguard public health and promote sustainability.

In September 2025, a major United Nations report delivered hopeful news for environmentalists and public health advocates worldwide: the Earth’s ozone layer is demonstrably healing, with the infamous ozone hole shrinking markedly over recent years. According to the World Meteorological Organization’s Ozone Bulletin, the ozone hole in 2024 was smaller than in past years—a signal of recovery sustained by decades of global cooperation. Based on atmospheric observations and modelling, the layer is now on track to return to 1980s levels by mid-century, and the Antarctic ozone hole could vanish altogether within several decades.

Groundbreaking research in 2025 has revealed that human-induced global warming was responsible for nearly two-thirds—specifically, 68%—of the 24,400 heat-related deaths reported this summer in European cities and urban centres. As climate change accelerates, Europe stands at the frontline, with rapidly rising average temperatures leading to deadlier, more frequent heatwaves. This shift not only signals a humanitarian crisis but underscores the urgent necessity for climate action and mitigation—particularly in the context of energy transition and sustainable living.

2025 has been a transformative year for Europe’s solar sector, particularly in the small-scale rooftop and distributed PV markets across the EU-27. Despite wider predictions of stagnation, small-scale solar installations defied expectations, driving a dynamic shift in investment and uptake across households and businesses. Data from the International Energy Agency PVPS Snapshot highlights 71.4 GW installed across Europe in 2024, with small-scale projects comprising a significant share—fuelled by policy support and attractive economics.

Global solar installations saw a record-shattering growth in the first half of 2025, increasing an astounding 64% year-on-year and reaching 380 GW of new capacity deployed worldwide. This surge marks solar PV as the fastest-growing energy generation technology on the planet, eclipsing all other sources in pace and impact. For context, the comparable period in 2024 saw 232 GW installed, meaning the solar sector added more capacity in just six months than any previous full year in the sector’s history.

Solar shading refers to any obstruction—be it trees, chimneys, neighbouring buildings, or even bird droppings or dirt—that blocks direct sunlight from reaching rooftop solar panels. This matters because the performance of solar PV arrays relies on uninterrupted solar irradiance; even light shade can significantly reduce the power output. In some scenarios, experts estimate system losses up to 40%, especially when panels are wired together in series and one panel in a string is shaded.

The European consortium “SolarMoves,” comprising the Netherlands Organization for Applied Scientific Research (TNO), Fraunhofer Institute for Solar Energy Systems (ISE), and solar car innovators Lightyear, IM Efficiency, and Sono Motors, spent nine months measuring the real-world energy potential of solar vehicles on European roads. More than 1 million kilometres of data, collected from 18 vehicles, confirms solar panels on vehicles are a viable and promising source of clean mobility, with substantial benefits but also notable limitations tied to environmental and user factors.

The UK’s electricity sector has reached a historic milestone as the carbon intensity of its power generation fell below 100 grams of carbon dioxide per kilowatt-hour (gCO₂/kWh) between April and June 2025. This marks a monumental step forward in the United Kingdom’s decarbonisation journey. The achievement is attributed to a combination of extensive renewable energy deployment, the phasing out of coal, and smarter grid management, further positioning the UK as a leader in clean energy.