Agriculture
Protecting Cows—and People—from a Deadly Disease
Middle school science adventures
Microbes at the Gas Pump
Amphibians
Tree Frogs
Newts
Salamanders and Newts
Animals
New Mammals
Odor-Chasing Penguins
Polar Bears in Trouble
Behavior
Girls are cool for school
Pollution at the ends of the Earth
Newly named fish crawls and hops
Birds
Tropical Birds
Vultures
Backyard Birds
Chemistry and Materials
Supergoo to the rescue
A Diamond Polish for Ancient Tools
Smelly Traps for Lampreys
Computers
Graphene's superstrength
Getting in Touch with Touch
New eyes to scan the skies
Dinosaurs and Fossils
Ancient Critter Caught Shedding Its Skin
Have shell, will travel
Mammals in the Shadow of Dinosaurs
E Learning Jamaica
Results of GSAT are in schools this week
2014 GSAT Results for Jamaican Kids
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Earth
Groundwater and the Water Cycle
The Rise of Yellowstone
Riding to Earth's Core
Environment
Will Climate Change Depose Monarchs?
Sea Otters, Kelp, and Killer Whales
Swimming with Sharks and Stingrays
Finding the Past
Of Lice and Old Clothes
Preserving Ancient Warrior Paint
Chicken of the Sea
Fish
Piranha
Pygmy Sharks
Basking Sharks
Food and Nutrition
In Search of the Perfect French Fry
Yummy bugs
A Taste for Cheese
GSAT English Rules
Adjectives and Adverbs
Who vs. Whom
Capitalization Rules
GSAT Exam Preparation Jamaica
Tarrant High overcoming the odds
Results of GSAT are in schools this week
Preparing for the GSAT Exam
GSAT Exams Jamaica Scholarships
GSAT Scholarship
GSAT Practice Papers | GSAT Mathematics | Maths
GSAT Exam Preparation
GSAT Mathematics
Math of the World
Monkeys Count
42,000 students will sit for the GSAT Exam in two weeks
Human Body
Sea Kids See Clearly Underwater
Prime Time for Broken Bones
From Stem Cell to Any Cell
Invertebrates
Tapeworms
Flatworms
Insects
Mammals
Cornish Rex
Donkeys
Weasels
Parents
What Not to Say to Emerging Readers
Raise a Lifelong Reader by Reading Aloud
Children and Media
Physics
IceCube Science
Einstein's Skateboard
The Particle Zoo
Plants
Underwater Jungles
White fuzzy mold not as friendly as it looks
The algae invasion
Reptiles
Cobras
Box Turtles
Pythons
Space and Astronomy
Galaxies Divide Sharply Along Color Lines
Evidence of a Wet Mars
Melting Snow on Mars
Technology and Engineering
Riding Sunlight
Algae Motors
Reach for the Sky
The Parts of Speech
What is a Verb?
Pronouns
Countable and Uncountable Nouns
Transportation
Robots on a Rocky Road
Troubles with Hubble
Seen on the Science Fair Scene
Weather
Arctic Melt
Warmest Year on Record
In Antarctica watch the heat (and your step)
Add your Article

Charged cars that would charge

In the middle of February, Tom Gage drove his car right into a building in downtown San Diego. Gage didn’t crash his car; he was showing it off — to a crowd gathered at the annual meeting of the American Association for the Advancement of Science, or AAAS. Gage's car is unusual: It's a plug-in electric car. Right now, most cars run on gasoline. Others, called hybrids, use a combination of gas and electricity — electricity provided by heavy-duty batteries in the car. And carmakers are racing to build an affordable all-electric car that both makes people happy and keeps the car companies in business. (Gage is president of AC Propulsion, a company that works on electric cars, so he has a head start.) His car is unusual for another reason: When he’s not driving it, he can plug it into a special meter that is connected to the grid. “The grid” is the network of power cables and power stations all over the United States that provide electricity to anyone in a particular place. With most outlets — such as the ones in your home — electricity comes out and provides power. When Gage's car is plugged in to its special meter or outlet, electricity can go in the opposite way you might expect. Instead of coming out to charge the batteries, electricity can go in. The batteries can send power to the grid. When you plug something in —a toaster, say — it needs electricity to perform its function. But when many people are all using power at the same time, the grid has to supply higher-than-normal amounts of electricity. Ideally, power companies would have some electricity stored and on hand for busy times. But storing electricity for long periods of time is difficult and expensive. In order to get electricity to everyone who wants it during these busy times, a power company may need to spend money to buy new batteries or even to build power stations if demand is going to remain high. The people who use electricity ultimately pay these extra costs. Gage’s idea is that if enough people use cars like his, their batteries can be used to give the grid an extra boost. And when the demand slows down, the grid can recharge the batteries in the cars. So someone who parks an electric car at one of these meters may not even notice a difference in the battery supply. Over the course of a day, the batteries “will have charged and discharged just the same amount,” Ken Huber told the audience at AAAS. Huber works at PJM Interconnection, a company involved with the buying and selling of electricity among different parts of the grid. By leasing their car batteries to the grid, Gage says, people can earn money — maybe even $5 to $10 per day. While Gage talked to the scientists and reporters at the meeting, his car was plugged into the grid. A computer display showed how much power was being shuffled between the car and the grid over time. The idea of this vehicle-to-grid system, or V2G, has been around for at least a decade, and mathematicians and economists have been figuring out how V2G could be profitable and energy-efficient. However, there are still some problems that need to be figured out. Right now, it costs about $500 to adapt a car to share its battery power with the grid — a hefty price to pay to share power. Plus, the grid would need to know when the cars’ batteries are available for charging — which means people would have to work one more thing into their schedules. Still, ideas such as Gage's are a glimpse of the future, where creative scientists and engineers will have to find ways to help avoid a full-fledged energy crisis.

Charged cars that would charge
Charged cars that would charge








Designed and Powered by HBJamaica.com™