Supercritical CO₂ works well in bounded industrial loops. That doesn't validate climate-scale CO₂ networks or a broad new power-cycle market. Useful fluid ≠ viable system. briefing.tfie.io/p/supercriti...

The National Interest asked me for the skeptical case on geothermal. My answer: it has a moment, but Washington is looking too hard at deep-drilled electricity and not enough at useful heat. nationalinterest.org/blog/energy-...

Germany will subsidize up to 80% of a hydrogen truck’s added cost over diesel. Battery-electric trucks appear to have no comparable federal purchase bridge. That can make hydrogen look cheaper to buy even when electricity remains much cheaper to run. briefing.tfie.io/p/germany-hy...

Cement decarbonization is not one magic binder. The pathway is less residual Portland: better design, lower clinker, regional substitutes, mass timber where it works, recycling and selective CCS. Subscribe and read the TFIE Briefing piece: briefing.tfie.io/p/cement-dec...

Hawaiʻi is an island-energy systems test: no continental grid, high fuel exposure, real land limits and cooling demand. The practical path is local clean electricity, storage, flexibility, efficient cooling and careful reserves. Read the TFIE roadmap: briefing.tfie.io/p/hawaii-cle...

Port decarbonization starts with equipment, drayage, charging, shore power and grid capacity. Fuel choices come later for the hardest vessel routes. Subscribe for the TFIE Strategy roadmap: briefing.tfie.io/p/port-decar...

Geothermal is strongest in heat, district systems, ground-source heat pumps and good hydrothermal resources. The hype sits in deep electricity claims that still have to beat drilling risk, project finance and improving alternatives. briefing.tfie.io/p/geothermal...

Cement is often framed as a kiln-and-carbon-capture problem. The bigger question is how much cement the system needs by 2100 after demand, clinker, substitutes, electrified heat and China’s denominator change. briefing.tfie.io/p/cement-tra...

Shipping’s fuel transition starts with less fuel, not better molecules. Fossil cargo declines, raw iron ore is exposed, short routes electrify, and scarce liquids belong only where ships still need fuel. Read the Briefing analysis: briefing.tfie.io/p/shipping-f...

No second population doubling. This TFIE WorldView piece tests the population denominator beneath 2100 transition scenarios: peak, plateau and divergence, not another 20th-century curve. Subscribe for the assumptions layer. briefing.tfie.io/p/no-second-...

Aviation fuel demand doesn’t collapse. Cheap kerosene growth does. Shorter routes electrify where aircraft economics work. Longer routes keep needing scarcer, costlier liquids. Subscribe for the 2100 pathway logic. briefing.tfie.io/p/aviation-f...

Carney’s Alberta pipeline deal is ugly optics but coherent strategy: open-for-business signal, trade-diversification story, and a wedge against opponents. It is still not a funded pipeline. Subscribe for the due-diligence layer behind energy claims. briefing.tfie.io/p/carney-alb...

Wrightbus is the denominator test. Hydrogen framed the rebound. Crawley shows the support-tail risk. The order book shows the business is battery-electric buses. Subscribe for the procurement-risk layer professionals need. briefing.tfie.io/p/wrightbus-...

EVs are flexible loads first, grid assets second. V2G will grow, but managed charging is the mass-market grid value: shift demand, absorb cheap renewables, avoid peaks. Subscribe for the deeper Briefing layer. briefing.tfie.io/p/ev-batteri...

Short-sea shipping’s battery wedge is no longer small. A Nature-family paper finds serious electrifiable energy and emissions, and the case strengthens against costly low-emissions fuels. Subscribe for the deeper Briefing layer. briefing.tfie.io/p/maritime-b...

Steel decarbonization is a route problem, not a hydrogen demand story. Scrap-EAF does most of the long-term work, clean primary iron stays bounded, and hydrogen has to compete inside that remainder. briefing.tfie.io/p/steel-rout...

France is treating electrification as energy security and industrial policy. Right direction. Suspicious deadline. Grids, heat pumps, EVs and industry decide whether it becomes strategy or slogan. briefing.tfie.io/p/france-ele...

Air lubrication can reduce fuel burn on the right ships, but it is an efficiency wedge, not a shipping transition strategy. The heavy lifting remains electrification where possible and sustainable fuels where necessary. Subscribe for more transition analysis. briefing.tfie.io/p/air-lubric...

Steel decarbonization is not mainly a hydrogen story. The denominator is demand, scrap growth, EAFs, construction slowdown, material substitution and how much new primary iron is actually needed. briefing.tfie.io/p/steel-2100...

Hydrogen buses work. The problem is the operating system: fuel cost, depot infrastructure, uptime, maintenance, warranties and repeat procurement. For transit agencies, hydrogen is a procurement risk premium, not a shortcut. briefing.tfie.io/p/hydrogen-b...

Belgium’s hydrogen refuelling story has a denominator problem. Atawey’s 3 new stations claim +7,000 kg/day capacity. H2Benelux’s whole trial was 8 stations and 80 vehicles across Benelux. That is not a trucking market. Subscribe for the denominator work: briefing.tfie.io/p/belgium-hy...

A pilot is not proof of scale. A grant is not proof of economics. An offtake agreement is not proof of market demand. Counterinduction is the habit of asking whether the evidence points the other way. I use it constantly in climate-tech diligence. briefing.tfie.io/p/counterind...

China has made underwater data centers commercially real. Seawater helps with cooling, but grid, cables, maintenance, permitting, security, and lifecycle costs still matter. Read the TFIE Strategy Briefing and subscribe: briefing.tfie.io/p/underwater...

Africa officially added 4.5 GW of solar in 2025, but imported 18.2 GW of modules. That gap matters. The boom may be showing up first in mines, telecoms, farms, mini-grids and diesel displacement before official grid stats catch up. briefing.tfie.io/p/africa-sol...

Hydrostor’s Ontario storage plan may work, but the benchmark has changed. A deep underground, 500 MW/4 GWh cavern project has to beat modular BESS on cost, risk, efficiency and delivery, not just claim long-duration virtue. cleantechnica.com/2026/05/20/h...

Hormuz is not just an oil and LNG chokepoint. Its sulfur shock previews a decarbonized future where cheap fossil byproduct sulfur shrinks, phosphate fertilizer and critical minerals face higher acid costs, and supply chains need sober redesign.

Poland bought hydrogen buses with big subsidies. Then fuel bills, station losses, supply failures and weak lifecycle accounting arrived. The lesson is dull but important: use scarce green hydrogen where hydrogen is already needed, and electrify buses directly. cleantechnica.com/2026/05/19/p...

Toyota’s hydrogen truck deal is another controlled deployment, not real market pull. The pattern is clear: Toyota keeps supplying, funding, fueling and backstopping a market that still fails the basic tests on cost, customers and infrastructure. cleantechnica.com/2026/05/18/t...

Solar and farming can share land, but agrivoltaics is not one thing. China leads at scale, while US projects are mostly grazing, pollinators, and trials. The real test is farm-first design, water stress, machinery access, and honest dual-use metrics. cleantechnica.com/2026/05/16/s...

The Jones Act waiver didn’t solve fuel prices or repeal cabotage. It exposed the real problem: protected scarcity. U.S. maritime security needs ships, crews, yards and clean vessel deployment at scale, not a law mistaken for strategy. cleantechnica.com/2026/05/15/j...