Energy and Green Technologies

Batteries, renewable energy, grids, climate, and clean technologies.

147 Articles

Holcim Installs Two Thermal Batteries to Electrify Cement-Industry Heat

Holcim has completed the installation of two Joule Hive thermal batteries developed by Electrified Thermal Solutions at one of its facilities, in a step to test using electricity instead of fossil fuels to provide the high industrial heat required for cement production. The system uses electrically conductive refractory bricks that can reach 1,800 degrees Celsius and store heat for up to three days.

2026-09-15

Energy and Green Technologies

IAA Transportation 2026: Longer-Range Electric Trucks and Hydrogen Awaiting Infrastructure

IAA Transportation 2026 reveals the shift of electric trucks toward production volumes and longer journeys, alongside the development of fuel-cell and hydrogen-combustion trucks and hybrid solutions. However, the exhibition also shows that infrastructure, energy availability, and economic viability remain decisive factors for expansion.

2026-09-15

Energy and Green Technologies

Why Might the United States Expand the Scope of Geothermal Energy Despite Its Limited Current Presence?

The article examines the transformation of geothermal energy in the United States from a geographically limited resource into a field supported by the Department of Energy and drilling and energy companies, with a new national center established and commercial projects under development. It argues that this path could increase competition with coal and gas in baseload electricity generation, although most new capacity has not yet entered operation.

2026-09-13

Energy and Green Technologies

Nuclear Fusion Companies Return to Cooperation with the Defense Sector

Nuclear fusion energy startups are moving toward defense-related partnerships and funding at a time when climate technology financing is slowing. This convergence gives companies an additional source of capital, but it ties the development path of power plants to military and security applications that are still in their early stages.

2026-09-13

Energy and Green Technologies

Dense-Liquid Hydropower Storage Proves Its Viability, but Scaling Faces a Minerals Bottleneck

RheEnergise demonstrated the operation of a hydropower storage system using a high-density liquid in Devon with a design capacity of 500 kilowatts, but the demonstration provided only about 15 minutes of full-power discharge instead of four hours. The analysis concludes that increasing storage duration could push the technology toward competing with batteries or confront it with massive mineral requirements.

2026-09-12

Energy and Green Technologies

United Kingdom Announces Fleet of 29 Battery-Electric Trains for Mainline Journeys

Alstom and TransPennine Express plan to operate 29 battery-electric trains in northern England from 2034, under transport contracts worth more than €1.2 billion. The trains are expected to support more than 6,000 jobs and provide speeds of up to 110 miles per hour, but their entry into service remains several years away.

2026-09-12

Energy and Green Technologies

India Reframes Its Case for Greater International Climate Finance

Dr. Vyoma Jha of NRDC argues that India’s transition to clean energy is as much about energy security as it is about climate, and that the annual financing gap could reach approximately $100 billion through 2050. The article calls for the redirection of international climate finance, giving greater weight to adaptation and resilience alongside emissions reductions.

2026-09-11

Energy and Green Technologies

SURF-WEC Converts Wave Motion into Electricity and Provides Open Data for Marine Energy Research

National Laboratory of the Rockies and the University of Hawaii deployed the SURF-WEC in the ocean off Oahu to test converting wave motion into electricity and collect open data. The device allows its operating mode to be switched remotely between active and passive modes, aiming to address the data shortage needed to advance marine energy technologies.

2026-09-11

Energy and Green Technologies

Aberdeen’s Hydrogen Buses Lose 94.6% of Their Value in Five Years

First Bus is preparing to buy 23 Wrightbus StreetDeck Hydroliner hydrogen buses for £30,000 per bus, after each bus cost Aberdeen City Council around £556,000. The company apparently plans to convert them into battery-electric buses, providing a real-world test of the value of distressed hydrogen assets and whether they can be salvaged by removing the hydrogen system.

2026-09-11

Energy and Green Technologies

Solar Power Advances in the United States Despite Political and Technical Obstacles

Data from the U.S. Energy Information Administration indicate that solar generation will clearly outpace the growth of gas and coal during 2026 and 2027, despite policies hostile to renewable energy. The article also examines the solar sector’s political mobilization, along with its bet on new materials and technologies such as perovskite and CdTe cells.

2026-09-11

Energy and Green Technologies

U.S. Court Cancels Order Keeping Michigan Coal Plant Operating

A U.S. court canceled an emergency order issued by the Department of Energy under the Donald Trump administration that had postponed the closure of the J.H. Campbell coal plant in Michigan. The ruling puts the plant back on track for retirement, while the Sierra Club challenges similar orders that kept other plants operating.

2026-09-11

Energy and Green Technologies

RGGI Initiative Lowers Electricity Bills as Data Center Growth Puts Pressure on Prices

An article published by NRDC argues that revenues from the RGGI initiative have helped lower electricity bills and fund energy efficiency, but directing a larger share of them toward direct assistance could weaken long-term savings. The authors argue for targeting support to households most in need and adopting updates to the initiative to preserve its benefits.

2026-09-10

Energy and Green Technologies

Review of the European Emissions Trading System: What Will Change in Transport?

This Transport & Environment article analyzes the forthcoming proposal to review the European Emissions Trading System, focusing on expanding aviation emissions pricing, bringing private aircraft into the system, and addressing non-CO2 aviation effects. The organization considers the proposed expansion a practical but still limited step, as a substantial share of aviation emissions would remain outside carbon pricing.

2026-09-10

Energy and Green Technologies

Google Buys One Million Carbon Credits from Project to Reduce Rice-Farming Methane in India

Google has signed a four-year agreement with Indian startup Mitti Labs to purchase one million carbon credits through 2030, as part of a project targeting reductions in methane emissions and irrigation-water consumption on rice farms.

2026-09-10

Energy and Green Technologies

Arizona Facility Recycles Rare Earth Magnet Materials to Support Electric Vehicles

Cyclic Materials has opened its first large-scale commercial facility for recycling rare earth element magnets in Mesa, Arizona, with processing capacity of up to 25,000 metric tons annually. The facility aims to provide an additional U.S. source of materials used in electric vehicle motors, wind turbine generators and other applications.

2026-09-10

Energy and Green Technologies

E-Waste Turns into an Economic Resource... Egypt Bets on the Circular Economy

An analysis by the Information and Decision Support Center shows that the metals contained in e-waste worldwide were worth approximately $91 billion in 2022, compared with only $28 billion in recovered secondary raw materials. Egypt has a legislative framework, recycling infrastructure, and initiatives to repair and refurbish devices, but it still needs to increase formal collection rates and deepen recovery capabilities.

2026-09-10

Energy and Green Technologies

Orange Egypt and Nokia Test Solar-Powered Telecom Site and Expand the Use of Artificial Intelligence

Orange Egypt and Nokia are unveiling a new phase of their 28-year partnership, covering network modernization, automation, artificial intelligence, and energy efficiency. A trial at the KS-HK-BATTAH site demonstrated the possibility of operating the site entirely on solar power while reducing diesel consumption by approximately 55 to 60 litres per day.

2026-09-09

Energy and Green Technologies

Denmark Produces Wind Power Equal to 140% of Demand: How Can the Surplus Be Used?

Denmark’s wind power output reached the equivalent of 140% of electricity demand during a short period of low demand, bringing renewed attention to the challenges of exporting and storing electricity and converting it into green fuel. The article compares this path with the United States’ faltering options for developing offshore wind.

2026-09-09