By John Fialka – The Department of Energy is preparing to use the massive computing power of its national laboratories to tackle a daily scourge of American life: traffic jams.
The effort is aimed at more than just improving motorists’ moods. If it works, it could cut U.S. transportation fuel consumption up to 20% and reduce auto emissions.
A second goal is to recover as much as $100 billion in lost worker productivity by unsnarling rush hour traffic jams in U.S. cities over the next 10 years.
Two years ago Oak Ridge National Laboratory in Oak Ridge, Tenn., and the National Renewable Energy Laboratory in Golden, Colo., selected Chattanooga, Tenn. (population 182,799), as the guinea pig for their first traffic-cutting experiment.
The city, nestled among the hills and ridges of the southeastern corner of the state, is ranked among the nation’s top 20 most traffic-congested cities.
The first step for NREL scientists was to make a detailed computer model, or what it calls a “digital twin,” of the city’s traffic patterns to isolate and then explore solutions to its snarled rush hours.
“Chattanooga provided an ideal microcosm of conditions and opportunities to work with an exceptional roster of municipal and state partners,” explained John Farrell, who manages the vehicle technology management program for NREL.
“Eventually, the plan is to apply these solutions to larger metropolitan areas and regional corridors across the country.” more>
Posted in Business, EARTH WATCH, Economy, Education, Energy & emissions, History, How to, Nature, Science, Technology
Tagged Business improvement, Climate change, Earth, Skills, Technology, Traffic congestion
By Frédéric Simon – While fossil gas is often seen as a transition fuel towards a fully decarbonized energy mix, GE Gas Power sees low-carbon gas as “a destination technology” with the potential to convert power plants to run 100% on clean hydrogen by 2030.
“Today, we have a 50% hydrogen capability for combustion in our largest baseload gas turbines” used for power generation, said Martin O’Neill, vice president at GE Gas Power.
The company’s objective, he explained, is to continue research and development in order “to advance the percentage of hydrogen combustion capability towards 100% by 2030,” he told a EURACTIV event earlier this month.
However, getting there would require a rapid scale up in the production of clean hydrogen, he added. And that will only be possible if multiple sources of low-carbon hydrogen are added to the mix, including so-called “blue hydrogen” where emissions are somehow captured and stored. more>
Posted in Business, EARTH WATCH, Economy, Energy & emissions, History, How to, Nature, Net, Science, Technology
Tagged Business improvement, Climate change, GE, Hydrogen, Industrial economy, Internet, Skills
What is ZR+?
You may be familiar with 400ZR, but thanks to continued innovation in coherent optical technology, network operators can also look forward to a new generation of longer-reach, multi-rate pluggable coherent solutions – “ZR+”. The generic term ZR+ means different things to different people, so learn about the wide range of different solutions it encompasses, the industry standards and MSAs driving their development, and additional coherent pluggable capabilities addressing even higher performance.
By Patricia Bower – Global optical networks continue to evolve, necessitating new and innovative solutions to meet the requirements of network operators to maximize fiber utilization and reduce the cost of data transport. Coherent optical transmission has been the key technology supporting both requirements over the last decade— and this will continue for the next stages of network evolution.
In early 2020, 800G-capable performance-optimized transport systems were introduced and have since been deployed around the world allowing customers to benefit from new network efficiencies and cost savings from this latest generation of coherent technology. What’s next?
In 2021, coherent pluggables supporting data rates from 100G to 400G and optimized for low power and small space requirements for high-density modular systems will start to be deployed in networks. This latest generation of products extend the economic benefits of coherent innovation into new application areas.
400ZR is an example of one of the first 400G solutions in this new class of pluggable coherent products to hit the market and will initially be used by hyperscale data center operators for single-span connectivity between data centers. Implemented predominantly in QSFP-DD form factors, 400ZR will serve the specific requirement for large-scale switch fabric extension by plugging directly into router faceplates for massive parallel data center interconnect of 400GbE for distances of 80 – 120km. more>
Posted in Broadband, Business, Communication industry, Economy, Education, How to, Net, Technology, Telecom industry
Tagged Broadband, Business improvement, Ciena, Fiber optics, Internet, Skills, Technology