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Climate & Energy

12 September 2026

66 new posts across 4 climate and energy sources — 9 worth your time.

One week of Climate & Energy, 9 stories, as published.

Nuclear

Shuttered nuclear plant in Iowa gets $1.9B federal loan to restart

NextEra Energy secured a federal loan commitment of up to $1.9 billion from the U.S. Department of Energy to restart the Duane Arnold Energy Center in Iowa. This marks the third shuttered U.S. nuclear power plant attempting a comeback with federal financial backing.

Why it matters — A $1.9 billion federal loan commitment demonstrates the government's willingness to underwrite the high capital costs of resurrecting retired nuclear capacity to meet growing clean energy demand.

Canary Media · 12 September 2026 · Read the original →

Data Centre Demand

xAI has quietly built a massive battery at its Memphis data center hub

Satellite imagery reveals that Elon Musk's xAI has installed approximately 720 Tesla Megapack battery containers at its Colossus 2 data center in Memphis, Tennessee. This massive installation represents what may be the largest battery storage setup in the U.S. dedicated to a single computing hub.

Why it matters — Data center operators are bypassing grid capacity constraints by co-locating massive, utility-scale battery storage systems directly on-site to power high-density AI workloads.

Canary Media · 12 September 2026 · Read the original →

Solar & Wind

Is there way more conventional geothermal than we thought?

Geothermal startup Zanskar is using artificial intelligence to locate undiscovered hydrothermal systems that lack surface indicators. The company has drilled three sites to validate its technology, including a successful 'blind' discovery in Nevada.

Why it matters — Using machine learning to identify 'blind' hydrothermal systems can unlock vast, previously hidden baseload geothermal resources without relying on surface thermal signatures.

Volts · 12 September 2026 · Read the original →

Storage

Energy Vault Scaled Gravity Storage. The Battery Benchmark Is Brutal.

Energy Vault's Rudong gravity-storage project in China serves as a real-world test of non-chemical storage technology, leveraging local supply chains for concrete, steel, and power electronics. The project highlights the steep cost and performance benchmarks set by dominant lithium-ion battery chemistry.

Why it matters — Alternative long-duration storage technologies must compete against the mature supply chains and rapid cost declines of lithium-ion batteries, even when built with low-cost Chinese manufacturing.

CleanTechnica · 12 September 2026 · Read the original →

Transport & EV

Aberdeen Paid £556k Per Hydrogen Bus. Five Years Later, First Bus Is Paying £30k

First Bus is purchasing 23 Wrightbus StreetDeck Hydroliner hydrogen double-decker buses from Aberdeen City Council for £30,000 each. This stands in stark contrast to the original purchase price of £556,000 per bus paid five years ago, revealing a massive real-world depreciation and market correction for hydrogen transit assets.

Why it matters — A 94% drop in secondary market value for five-year-old hydrogen buses highlights the severe operational and financial risks of investing in early-stage, high-maintenance fuel-cell transit fleets.

CleanTechnica · 12 September 2026 · Read the original →

Policy & Subsidy

Building a big, abundant, clean grid

This interview with Jane Flegal of the Searchlight Institute examines the implementation of US industrial policy, comparing market-based approaches against direct subsidies. It details the structural successes and shortcomings of the Inflation Reduction Act (IRA) and the development of carbon-removal markets.

Why it matters — It analyzes the structural tradeoffs between market-driven mechanisms and direct industrial policy under the IRA, offering lessons on how subsidy design affects deployment speed.

Volts · 12 September 2026 · Read the original →

Transport & EV

UK aviation emissions to be 50% higher than thought by 2050, government admits

The UK government has sharply downgraded its expectations for electric aircraft and sustainable aviation fuels (SAFs), admitting that aviation emissions will be 50% higher than previously projected by 2050. Official forecasts indicate that technology and efficiency improvements will achieve only a 25% reduction in flight emissions over the next two decades.

Why it matters — It establishes a realistic performance ceiling for near-term aviation tech, showing that electric flight and SAFs are projected to deliver only a 25% emissions cut over 20 years.

Carbon Brief · 12 September 2026 · Read the original →

Policy & Subsidy

US Energy Secretary Orders Coal Plant Online

On September 11, 2026, the U.S. Secretary of Energy issued an emergency order for Unit 2 of the Centralia Generating Station, a coal-fired power plant in Washington, to remain operational from September 13 to December 11, 2026. This action addresses critical grid reliability concerns in the Northwestern U.S.

Why it matters — This demonstrates a direct federal intervention to ensure grid reliability by temporarily reversing a planned fossil fuel plant retirement, impacting regional energy policy.

Energy.gov · 12 September 2026 · Read the original →

Nuclear

ONE Nuclear Unveils 5 GW Louisiana Portfolio

ONE Nuclear Energy LLC announced a 5 GW Louisiana Portfolio on September 10, 2026, comprising three projects for data center and industrial demand. This includes Project Cayman (2.88 GW natural gas and battery storage), Barracuda (1.2 GW energy park with 300 MW/1.2 GWh storage for data centers), and Project Amberjack (advanced nuclear pathway).

Why it matters — This integrated development targets rapidly expanding industrial and data center loads, combining dispatchable power, grid-scale storage, and future nuclear capacity.

Latitude Media · 12 September 2026 · Read the original →

Nothing stabilizes the clean energy transition quite like a vintage coal plant.

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