Battery in a drum rolled out
GERMANY - A lithium-titanium battery pack in a rolling white drum can supply 300 watts of power from a 1 kilowatt-hour reserve.
That's enough to power a computer workstation for 2 or 3 days, or to recharge a cell phone almost indefinitely, according to Younicos, the German company that invented the pack.
The mobile energy storage unit, called Yill, is a couple of feet in diameter, about the size of a small bass drum, with a handle and wheels. It recharges in about four hours in a 220-volt electric outlet.
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APS asks customers to conserve energy after recent blackouts in California
PHOENIX - After excessive heat forced rolling blackouts for thousands of people across California Friday and Saturday, Arizona Public Service Electric is asking customers to conserve energy this afternoon and evening.
“Given the extended heat wave in the western United States, APS is asking customers to conserve energy due to extreme energy demand that is driving usage higher throughout the region with today’s high temperatures,” APS said in a statement.
Tucson Electric Power has made a similar request of customers in its coverage area.
APS is asking customers to conserve energy in the following ways Tuesday until 8 p.m.:
- Raise thermostat settings to no…
