The blades of propellers and wind turbines are designed based on aerodynamics principles that were first described mathematically more than a century ago. But engineers have long realized that these formulas don’t work in every situation. To compensate, they have added ad hoc “correction factors” based on empirical observations. Now, for the first time, engineers […]
Green Energy
Solar streetlights designed in Florida may illuminate roads across southern US
Sidewalks lining new neighborhoods across the southern U.S. could soon be lit by solar-powered streetlights made by a startup company in Tampa. Streetleaf, headquartered in Tampa with about 15 employees, announced that it’s inked a deal with the nation’s largest homebuilder, D.R. Horton. Streetleaf will provide its streetlights for some of D.R. Horton’s new developments […]
Federal government grants first floating offshore wind power research lease to Maine
The federal government issued on Monday the nation’s first floating offshore wind research lease to the state of Maine, comprising about 23 square miles (60 square kilometers) in federal waters. The state requested the lease from the federal Bureau of Ocean Energy Management for a floating offshore wind research array with up to a dozen […]
Vermont Electric and Green Mountain Power launch new large-scale battery in North Troy
Operators cut the ribbon on Friday for a new utility-scale battery, which is expected to keep renewable energy projects in the area running more consistently while reducing strain on the electrical grid during peak usage times. Sixteen white blocks, roughly the size of shipping containers, hummed quietly on Friday as members of Vermont Electric Cooperative, […]
Refueling a hydrogen car in California is so annoying that drivers are suing Toyota
When he first bought his Toyota Mirai in 2022, Ryan Kiskis was a happy man. He loved the idea of applying cutting edge hydrogen fuel cell technology to environmental consciousness. “It’s a great car,” he said. “My background is an engineer, I’m a huge automotive fan, and I felt the the world was finally catching […]
Predicting the implications of transforming public transport depots in China into energy hubs
To reduce carbon emissions and mitigate climate change on Earth, governments and companies worldwide have been investing in the electrification of both public transport and private vehicles. China is among the countries that started exploring the electrification of transportation, starting with the introduction of electric buses (EBs). Despite its predicted advantages for reducing carbon emissions, […]
Leaf-like solar concentrators promise major boost in solar efficiency
Since its invention in the 1970s, the luminescent solar concentrator (LSC) has aimed to enhance solar energy capture by using luminescent materials to convert and concentrate sunlight onto photovoltaic (PV) cells. Unlike traditional concentrators that rely on mirrors and lenses, LSCs can harvest diffuse light and have been used in applications such as building-integrated photovoltaics, […]
This will be the first geothermal energy storage system on the Texas grid
Sage Geosystems will launch EarthStore this year, which uses geothermal energy storage to produce clean electricity on demand. The Houston-based geothermal baseload and energy storage company has entered into a land use agreement with San Miguel Electric Cooperative for a 3-megawatt (MW) geopressured geothermal system energy storage facility. The EarthStore system will be in Christine, […]
The West needs China for clean energy. It will pay a price to break free
The United States and Europe are racing to narrow China’s commanding lead in clean energy technologies, throwing subsidies at local manufacturers and hiking tariffs on Chinese imports in a strikingly protectionist turn. China’s dominance in clean energy supply chains presents a conundrum for governments trying to green their economies and meet fast-approaching climate targets while […]
Winds of change—the new tech steering commercial shipping towards a more sustainable future
In August 2023, a five-year old cargo ship, Pyxis Ocean, made history when it set sail from Shanghai, China, heading towards the southern Brazilian port of Paranaguá. A journey of nearly 25 000 km. What was historic about the journey was that, instead of running solely on heavily polluting bunker fuel, the Pyxis Ocean would […]