Electric Hydrofoils Save Energy, But Do They Earn Their Price?

cleantechnica.com Oct 31, 2026

Electric Hydrofoils Save Energy, But Do They Earn Their Price?

Curated by Shubham · TechCapsules · Oct 31, 2026

AI-summarised brief · reviewed before publication

Antwerp pilotage operator Brabo ordered the Artemis EF‑12 electric hydrofoil pilot boat in August 2024, combining electric propulsion with submerged foils and active controls. Sea‑trial data and a Python‑based operating model show the vessel spends only 0‑13 % of its time foilborne, limiting drag‑reduction benefits. A fifteen‑year discounted cost estimate places the hydrofoil at €5.32 million versus €3.81 million for a conventional diesel tender, a 40 % premium. Electric propulsion still cuts energy use, but capital costs and limited high‑speed opportunities undermine financial viability. Alternative air‑cavity electric vessels performed better in the comparison.

💡 Why It Matters

· The study highlights that hydrofoils, while technologically appealing, may not deliver cost savings in congested harbor operations where high‑speed runs are rare.
· It underscores the need for route‑specific financial analysis before adopting advanced propulsion systems.

Read full article on cleantechnica.com

Fuel From Bamboo Costs Just $2.75 Per Gallon

Researchers at Worcester Polytechnic Institute have demonstrated that bamboo can be converted into a liquid biofuel costing $2.75 per gallon, cheaper than current gasoline and less than half the price of diesel. The study, published in Sustainable Energy & Fuels, highlights bamboo’s rapid growth, low ash content, and minimal fertilizer and water needs, which together reduce processing costs and improve fuel quality during hydrothermal liquefaction. Compared with diesel, the bamboo-derived fuel emits up to 26 times fewer greenhouse gases, and its production would require only 13 percent of the land used for corn‑based ethanol. The authors argue that bamboo’s ability to thrive on marginal land also avoids competition with food crops, offering economic opportunities for rural communities in the US.

💡 At $2.75 a gallon, bamboo fuel undercuts fossil prices while slashing emissions, giving policymakers a viable low‑cost alternative that can be scaled on non‑arable land.

thequantuminsider.com · Oct 31

SUNY Chancellor Highlights Quantum and Energy Research at Stony Brook

SUNY Chancellor John B. King Jr. visited Stony Brook University to showcase the campus’s cutting‑edge research in quantum computing, energy, healthcare, artificial intelligence, and environmental science. He toured the Advanced Energy Research and Technology Center, attended a research expo, and met faculty working on distributed quantum processing, nuclear energy, battery technology, clean water, and precision medicine. The visit underscored SUNY’s strategy to expand systemwide research, highlighted collaborations with Brookhaven National Laboratory, and emphasized the university’s role in addressing global challenges.

💡 The Chancellor’s tour signals a renewed commitment to positioning New York State as a leader in high‑impact science, directly linking academic breakthroughs to economic growth and public health improvements.

cleantechnica.com · Oct 31

The Share of Solar Generation with Co-located Battery Storage Is Increasing

Utility‑scale solar developers are increasingly pairing new photovoltaic projects with battery storage. As of September 2026, 16% of newly added solar capacity includes operable batteries, up from 2% in 2017. Planned projects for the year’s final quarter could push the share to 19%, while long‑term plans for 2027‑2028 anticipate over 30%. Co‑location allows operators to shift solar output between the grid and storage, smoothing price volatility. Southwest states lead the trend, with double the national average of co‑located capacity.

💡 The rise in solar‑battery integration signals a shift toward more flexible, price‑responsive renewable generation, reshaping how utilities manage supply and demand.

cleantechnica.com · Oct 31

Scaling European Battery Recycling via the Circular Economy Act

A joint letter from Transport & Environment, Recharge, Clean Tech for Europe and EIES urges the European Union’s forthcoming Circular Economy Act to include concrete measures that will scale the continent’s battery‑recycling capacity. The signatories argue that recovering critical raw materials (CRMs) from end‑of‑life lithium‑ion batteries is essential for reducing Europe’s reliance on imports and for meeting climate goals. Currently, more than half of the EU’s recycling facilities are at risk, and while most battery waste is pre‑processed domestically, roughly 60 % of the resulting black‑mass concentrate is exported for final refining, a leakage that undermines strategic autonomy and jobs. The letter calls for stronger political and demand signals, financial support and incentives to build EU‑based refining plants, aiming to keep valuable materials and associated employment within Europe.

💡 Stopping the outflow of black‑mass prevents a hidden drain on Europe’s critical‑material supply chain and safeguards high‑value manufacturing jobs on the continent.

cleantechnica.com · Oct 29

Ireland’s Grid Flexibility Assessment Shows Why Location Matters

Ireland’s Commission for Regulation of Utilities released its first national Flexibility Needs Assessment, estimating distribution networks will require about 234 MW of upward flexibility and 58 GWh of storage by 2028. The study shows flexibility must be located where constraints occur, citing the Naas 38 kV/10 kV substation, which may need 0.6 MW and 3 MWh of support in January. Planned reinforcement by 2030, removing it, underscores the location‑specific nature of the need. Batteries, managed electric‑vehicle charging and industrial demand response can meet national targets, but only resources connected at the right point can relieve specific transformer overloads. Timing, event duration and recovery periods further dictate suitable technologies. The assessment mirrors a UK finding that flexibility markets struggled with single‑transformer constraints lasting 24 hours, prompting reinforcement instead.

💡 Locating flexibility at the precise substation can avoid costly network upgrades, turning distributed assets into a direct solution for localized constraints.

quantumcomputingreport.com · Oct 29

EPB and IonQ Deploy Hybrid Trapped-Ion Algorithms on Forte Enterprise to Optimize…

EPB and IonQ published three technical preprints showing hybrid quantum‑classical algorithms for distribution network reconfiguration (DNR). Using a $4 million NIST grant, EPB’s Quantum Computing Fellows ran optimization protocols on an on‑premises IonQ Forte Enterprise trapped‑ion system at the EPB Quantum Center in Chattanooga. The work benchmarked three computational frameworks targeting line‑loss reduction and real‑time switch allocation across networks up to 417 buses. The study demonstrated that quantum sampling can guide classical power‑flow engines to low‑loss configurations, though runtime overhead remains significant for smaller systems.

💡 The research marks a tangible step toward integrating quantum computing into critical utility operations, offering a potential pathway to more efficient power grid management. It also establishes practical performance limits, informing future investment in quantum‑assisted infrastructure solutions.