Heart’s ES-36 keeps electric motors at the propellers while turbogenerators extend missions beyond practical battery range.
On August 12, Heart Aerospace flew its X1 demonstrator for 27 minutes from Plattsburgh International Airport in New York. The aircraft weighed more than 25,000 pounds, had a 106-foot wingspan and put more than a megawatt through its electric propulsion system while taxiing, taking off, climbing, maneuvering and landing. There … [continued]
A little-noticed provision of the One Big Beautiful Bill Act means new stable revenues for western states, but the Trump administration’s actions have limited its impact. The enactment of the One Big Beautiful Bill Act (OBBBA), in concert with aggressive anti-renewable energy actions from the Trump administration, is set to … [continued]
Kraaken combines ocean thermal generation, AI computing, freshwater production and storm mobility in one offshore platform. The engineering question is whether all of those physical flows and interfaces can reconcile in the same 100 MW system.
A floating data centre that generates its own electricity from the ocean, cools itself with seawater, produces drinking water for a coastal community and can sail away when a hurricane approaches is almost tailor-made for the current AI data center hype bubble. Optimal Transit’s Kraaken concept is ambitious even by … [continued]
HyFlux’s superconducting motor could substantially improve propulsion power density, but its commercial value still depends on the aircraft, cryogenic fuel system and airport infrastructure around it.
HyFlux has an unusually interesting hydrogen-aviation proposition because the technology at its centre appears somewhat credible, if incredibly difficult to engineer and maintain. The UK company wants to exploit the extreme cold of liquid hydrogen already carried aboard a future hydrogen aircraft to cool a fully superconducting electric motor. Superconductivity … [continued]
WASHINGTON, D.C. — Today, Sierra Club released a new analysis of public data published by Urgewald on fossil fuel bond holdings across 40 U.S. public pension funds, finding that fossil fuel debt remains embedded in public pension portfolios and available bondholding data are significantly incomplete. The analysis underscores that even if a public … [continued]
Ports need more investment for bigger ships, resilience and decarbonization just as some of the bulk cargoes that funded them begin to decline.
Ports are being asked to make infrastructure decisions that will last thirty, forty or fifty years while several of the assumptions that paid for their existing infrastructure are changing at the same time. Ships are getting larger, requiring deeper channels, larger cranes and more capable tug fleets. Climate disruption is … [continued]
OceanX survived severe Yagi wind and waves with little reported nacelle inclination, but its stayed, weather-vaning architecture is the more interesting result.
OceanX gave me two immediate reasons to be skeptical. It puts two turbines on one floating platform, and it puts the rotors downwind of their supports rather than in front of them. I had looked at both ideas years ago and found good reasons why the wind industry had largely … [continued]
New focus aims to strengthen real-world impact of pensions’ climate-solutions investment strategy NEW YORK, NY — New York City Comptroller Mark Levine announced Wednesday that the Bureau of Asset Management expects to present a total of $5 billion in new private-market climate investment opportunities to the boards of the New York … [continued]
Cheap working fluids do not make cheap electricity storage. Compression, thermal management, containment and expansion turn apparently simple gas storage into process infrastructure.
Two years ago I called compressed-gas electricity-storage claims mostly hot air. Since then the sector has produced exactly the sort of evidence that should force a reassessment rather than a repetition of the old argument. China has commissioned the 600 MW / 2.4 GWh Huai’an compressed-air demonstration, Hydrostor has pushed … [continued]
The fashionable technology changes from blockchain to hydrogen to AI, but the commercialization tactic persists: attach a new narrative to an unresolved proposition before the complete system has proved its economics.
Panthalassa raised $140 million this year to build autonomous ocean platforms that would generate electricity from waves and use it directly for AI inference computing at sea. The proposition removes one genuine problem for wave energy: instead of transmitting electricity back to shore through subsea cables and grid connections, put … [continued]
