RSS feed source: US Energy Information Administration

In-brief analysis

May 30, 2025

Data source: Wards Intelligence

About 22% of light-duty vehicles sold in the first quarter of the year in the United States were hybrid, battery electric, or plug-in hybrid vehicles, up from about 18% in the first quarter of 2024. Among those categories, hybrid electric vehicles have continued to gain market share while battery electric vehicles and plug-in hybrid vehicles have remained relatively flat, according to estimates from Wards Intelligence.

These different vehicle types affect the broader energy sector in different ways. Battery electric vehicles and plug-in hybrid vehicles can consume electricity from isolated power sources or, more commonly, from the grid. So, their use can affect electricity demand. By comparison, hybrid electric vehicles do not have plugs, so they don’t directly affect grid-delivered electricity demand.

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RSS feed source: US Energy Information Administration

Researchers determined how much outdoor particulate pollution affects indoor air quality. Their study concluded pollution from inversion and dust events is kept out of buildings, but wildfire smoke can sneak inside if efficient ‘air-side economizers’ are in use.

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RSS feed source: US Energy Information Administration

As the world shifts toward sustainable energy sources, ‘green hydrogen’ – hydrogen produced without emitting carbon – has emerged as a leading candidate for clean power. Scientists have now developed a new iron-based catalyst that more than doubles the conversion efficiency of thermochemical green hydrogen production.

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RSS feed source: US Energy Information Administration

In a major advancement for sustainable construction, scientists have created a cement-free soil solidifier from industrial waste. By combining Siding Cut Powder and activated by Earth Silica, an alkaline stimulant from recycled glass, scientists produced a high-performance material that meets compressive strength standards exceeding the 160 kN/m construction-grade threshold and eliminates arsenic leaching through calcium hydroxide stabilization. The technology reduces landfill volumes and carbon emissions, offering a circular solution for infrastructure development worldwide.

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