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energy

Our coverage spans conventional power generation, renewables, nuclear, grids, storage, and emerging energy technologies.

9/17/2026
California’s new 1,000 MWh energy storage facility can deliver 250 MW for four hours

California’s new 1,000 MWh energy storage facility can deliver 250 MW for four hours

The 250 MW Cormorant battery project will store 1,000 MWh and supply California’s grid during peak demand.

Neetika Walter

9 hours ago

$125 million boost takes advanced battery materials toward US-scale production

$125 million boost takes advanced battery materials toward US-scale production

The $125 million investment will expand US production of conductive carbons and carbon nanostructures for advanced batteries.

Neetika Walter

10 hours ago

New HALEU deal brings compact nuclear reactors closer to military bases, space

New HALEU deal brings compact nuclear reactors closer to military bases, space

Centrus and Antares signed a multi-year HALEU deal to support compact nuclear reactors for defense and space.

Neetika Walter

13 hours ago

World first: 500 MW solar plant stops dangerous power swings in 40 milliseconds

World first: 500 MW solar plant stops dangerous power swings in 40 milliseconds

The test took place at a solar-plus-storage facility in Qinghai, China.

2.5-GW Texas gas-nuclear plant advances as Blue Energy submits filing for 300-MW SMR

2.5-GW Texas gas-nuclear plant advances as Blue Energy submits filing for 300-MW SMR

This filing also contributes to an expanding regional momentum for this specific reactor technology.

Aman Tripathi

19 hours ago

US scientists use plasma and electricity to turn CO2 into sustainable jet fuel

US scientists use plasma and electricity to turn CO2 into sustainable jet fuel

The system operates at room temperature and atmospheric pressure.

Idaho site finalized for first campus-based nuclear microreactor with 1,652°F heat pipes

Idaho site finalized for first campus-based nuclear microreactor with 1,652°F heat pipes

Heat pipes serve as the fundamental backbone of NuCube’s reactor design.

Aman Tripathi

19 hours ago

US recycler achieves 22,000-ton capacity to recover critical minerals from old batteries

US recycler achieves 22,000-ton capacity to recover critical minerals from old batteries

The integrated operation handles battery cells, modules, and complete packs.

Atharva Gosavi

19 hours ago

First grid-tied 250kW sodium-sulfur battery system commissioned for mineral refining

First grid-tied 250kW sodium-sulfur battery system commissioned for mineral refining

The 250kW/1.45MWh system marks a major turning point for the nation’s energy transition.

Mrigakshi Dixit

20 hours ago

50,000 years of fuel: US firm targets 4 billion tons of uranium hidden in seawater

50,000 years of fuel: US firm targets 4 billion tons of uranium hidden in seawater

Reusable polymer fibers capture dissolved uranium without toxic mining waste.

Atharva Gosavi

20 hours ago

New technology converts industrial waste heat into power, draws $100M investment

New technology converts industrial waste heat into power, draws $100M investment

Industrial waste heat could become a new power source as $100M backs projects that convert excess heat into electricity.

9/16/2026
Hitachi’s biggest US $528M investment will double Mississippi transformer output

Hitachi’s biggest US $528M investment will double Mississippi transformer output

The Gallman project marks Hitachi Energy’s biggest single U.S. investment, with production slated to begin in 2029.

Aamir Khollam

a day ago

6MW floating solar array turns Ohio reservoir into power site, saves 30 acres of land

6MW floating solar array turns Ohio reservoir into power site, saves 30 acres of land

A new 6MW floating solar array in Ohio uses 12 acres of reservoir water to avoid taking farmland for solar.

New 128MW battery shifts solar power into four hours of peak electricity demand

New 128MW battery shifts solar power into four hours of peak electricity demand

A 128MW battery facility in Georgia can store solar power and release it during periods of higher electricity demand.

China’s new 4MWh sodium-ion battery system targets 30-year life for grid storage

China’s new 4MWh sodium-ion battery system targets 30-year life for grid storage

HiTHIUM has unveiled a 4MWh sodium-ion system designed for 30 years, with full-scale production planned for 2027.

Neetika Walter

2 days ago

US boosts perovskite films’ performance for indoor solar power with 35% bromine recipe

US boosts perovskite films’ performance for indoor solar power with 35% bromine recipe

Researchers tuned a perovskite solar material specifically to harvest the weaker, narrower spectrum of indoor light.

Kaif Shaikh

2 days ago

US nuclear reactor designer advances 6-gigawatt SMR fleet across the Atlantic

US nuclear reactor designer advances 6-gigawatt SMR fleet across the Atlantic

To support upcoming reactors, X-energy is aggressively securing its domestic supply chain.

Aman Tripathi

2 days ago

Microsoft helps Blykalla cut lead-cooled reactor licensing prep from years to months

Microsoft helps Blykalla cut lead-cooled reactor licensing prep from years to months

Unlike water-cooled traditional reactors, SEALER uses molten lead.

Aman Tripathi

2 days ago

3.5 GW capacity US plant to make ultra-thin lithium films for domestic battery production

3.5 GW capacity US plant to make ultra-thin lithium films for domestic battery production

The facility will strengthen domestic supplies of advanced battery materials.

Atharva Gosavi

2 days ago

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About Energy

Energy sits underneath almost everything, industry, transport, computing, and cities, but is often discussed only when something breaks or gets expensive. This category examines how energy is produced, stored, moved, and used in the real world, and how those systems are changing under technical, economic, and political pressures.
Coverage at Interesting Engineering spans conventional power generation, renewables, nuclear, grids, storage, and emerging energy technologies. That includes solar and wind systems, batteries, hydrogen, carbon capture, advanced reactors, transmission infrastructure, and the software increasingly used to monitor and manage them. The focus isn't on abstract targets or idealized transitions, but on the engineering decisions that determine whether new systems are reliable, scalable, and affordable.
Energy systems are defined by constraints. Power density, intermittency, materials availability, land use, safety, and cost all shape what can be deployed and where. This category examines those trade-offs, along with the reasons many promising technologies struggle to move beyond pilots or subsidies. Grid integration, permitting delays, supply chains, and long build times, matters as much as technical performance.
We also look at how energy demand is shifting, driven by electrification, data centers, AI workloads, industrial decarbonization, and transportation. These pressures are forcing upgrades to aging infrastructure and raising questions about resilience, redundancy, and long-term planning. Reliability is as central as sustainability, especially as energy systems become more complex and more interconnected.
Energy also examines who builds these systems, who pays for them, and what determines whether new energy projects survive beyond early pilots.
Rather than framing energy as a single transition, this category treats it as a series of overlapping, uneven changes. It tracks what's being deployed now, what’s quietly failing, and what still requires significant engineering work before it can operate at scale. The emphasis is on systems that endure; not just technologies that look good on paper, but those that can deliver power consistently, safely, and economically over decades.