Energy Efficiency

Current
APS Changes Course for 100% Clean Energy Future
Today, Arizona Public Service Co. (APS) announced a goal to deliver 100 percent clean, carbon-free electricity to customers by 2050. APS’ goal includes a nearer-term 2030 target of achieving a resource mix that is 65 percent clean energy, with 45 percent of our portfolio coming from renewable energy. APS will
. . . Read More
Date:
01/22/2020
AI in the Data Center

Figure 1. Powering Artificial Intelligence

In a recent New York Times article, Mark Hung, a VP at Gartner, said that “almost everything Google is announcing these days is AI-related.” He said, “Google has a lead on artificial intelligence over many of its competitors, and it’s going to use that as a weapon to advance their products.” Although
. . . Read More
Date:
01/20/2020
Thermoelectric Cooling for Base Station and Cell Tower Equipment

Figure 1a and 1b. Due to the limited access for repair and maintenance of base station and cell towers, long life operation is required

Temperature control of sensitive telecom electronics in unattended mobile base stations and cell towers is vital for the operation of primary and back-up systems. Heat can significantly degrade the performance and operating life of telecom cabinets, energy storage systems and back-up battery systems. Mobile
. . . Read More
Date:
01/20/2020

Understanding the Basics of DC-DC Conversion

Figure 1: DC-DC converters can be isolated or non-isolated

When Allesandro Volta made a battery out of copper and zinc disks and brine-soaked cardboard, it was a novelty and the low power DC produced had few practical applications. As electricity became better understood and it was discovered that rotating magnets could induce AC current in wires, the world of power
. . . Read More
Date:
01/20/2020
Growing Developments in LED Horticultural Lighting

Figure 1: Average plant response to PAR

The horticultural lighting industry is in the middle of a disruptive change – growers are now getting to grips with the LED ‘solid-state’ artificial light alternative, traditionally provided by high-pressure sodium lamps (HPS). HPS lamps are relatively efficient at 100-150 lumens per watt, actually similar
. . . Read More
Date:
01/20/2020
3W ACDC Converter with Transient Output Power Up to 12W
In some applications where high transient communication or drive power is required, such as electrical control systems, automatic meter reading, anti-theft alarms, and access electric lock applications, large amounts of power are outputted in a short time at transmitting
. . . Read More
Date:
01/17/2020
How to Make it Easier to Turn Plant Waste into Biofuels

Next-generation ammonia-salt based pretreatment processes facilitate efficient breakdown of waste biomass such as corn stalks, leaves and other residue (called corn stover).

Researchers have developed a new process that could make it much cheaper to produce biofuels such as ethanol from plant waste and reduce reliance on fossil fuels. Their approach, featuring an ammonia-salt based solvent that rapidly turns plant fibers into sugars needed to make ethanol, works well
. . . Read More
Date:
01/15/2020
Improving Solar Cells' Back-Contact with DOE Project

Researchers will work to improve the solar cell's back contact, the layer furthest from the light source.

Fifty years ago, solar power was rare, expensive and specialized - barely a blip on the energy landscape. Today, rooftop and commercial solar markets are exploding, generating 2.5% of all electricity in the U.S. and fueled by the urgency of climate change. For many years, Colorado State University
. . . Read More
Date:
01/12/2020
20 F addition to Electric Double-Layer Capacitor LP Series
TAIYO YUDEN announced today the addition of LP12352R7206 (φ12.5 × 35 mm, 20 F), our highest-capacitance product, to our cylinder-type electric double-layer capacitor LP series. Example applications for this
. . . Read More
Date:
01/08/2020
TAIYO YUDEN’s All-Solid-State Lithium-Ion Secondary Batteries
TAIYO YUDEN announced today the development of all-solid state lithium-ion secondary batteries (hereinafter referred to as “all-solid-state batteries”) in which various technologies including the process technology of multilayer ceramic capacitors (MLCCs) are
. . . Read More
Date:
01/08/2020
Sublimation: Graphene Surprises Researchers Again

Abstraction

Physicists from the Moscow Institute of Physics and Technology and the Institute for High Pressure Physics of the Russian Academy of Sciences have used computer modeling to refine the melting curve of graphite that has been studied for over 100 years, with inconsistent findings. They also found that graphene
. . . Read More
Date:
01/06/2020
Monash Creates World's Most Efficient Lithium-Sulfur Battery

Associate Professor Matthew Hill, Dr. Mahdokht Shaibani and Professor Mainak Majumder.

Monash University researchers have developed the world's most efficient lithium-sulphur battery, capable of powering a smartphone for five continuous days. Prototype cells have been developed in Germany. Further testing in cars and solar grids to take place in Australia in 2020. Researchers
. . . Read More
Date:
01/03/2020
Supply of Minerals and Metals for a Low-Carbon Energy Future

Cobalt miner operating in the DRC.

The global low-carbon revolution could be at risk unless new international agreements and governance mechanisms are put in place to ensure a sustainable supply of rare minerals and metals, a new academic study has warned. The amount of cobalt, copper, lithium, cadmium, and rare earth elements needed
. . . Read More
Date:
01/03/2020