It isn't uncommon for an average household using grid power to consume 10,000 watt-hours
of electricity per day, so how can home owners adapt to half as much?
Refrigerator 1,000 watt-hours
Freezer 1,000 watt-hours
Lights 500 watt-hours
Washing machine 1,000 watt-hours
(4 loads per week) Water pump 250 watt-hours
(1,000 watts for 1/4 hr) Two laptops 560 watt-hours
(20 watts each for 14 hrs) Satellite Internet dish 280 watt-hours
(20 watts for 14 hrs) Radio 105 watt-hours
(15 watts for 7 hrs) Television 330 watt-hours
(110 watts for 3 hrs)
Unlike lithium-ion battery energy density, which is around 65 Watt-hours
per kilogram, the cartridge has an energy density of more than 1,000 Watt-hours
Monday, OSU had generated 3,700 watt-hours
, and the UO had generated 3,500 watt-hours
The rovers normally generate around 650 watt-hours
from their solar panels--about the same as a high-powered vacuum cleaner.
According to MTI Micro, the Mobion test units ran continuously on one integrated fuel tank to achieve more than 380 watt-hours
of energy in the same size and shape as the BA5590 battery.
These new products meet or exceed demanding automotive application requirements for both watt-hours
of energy storage and watts of power delivery per kilogram, and will perform reliably for more than one million discharge-recharge cycles at 2.
When Spirit landed, it could generate 900 watt-hours
of energy, but its solar-array output has since dropped to less than half that amount.
Scientists from the universities of Patras and Minnesota claim that the invention could be a major advance in creating viable hydrogen-based energy systems, because the technology could be used in small fuel cells generating 350 watt-hours
The Solar Power Pack fits in a backpack and weighs 22 pounds (10 kilograms), providing users with 120 watt-hours
of power each day.
Existing lead-acid storage batteries that can power a car for 60-80 miles between charges have an energy density of about 35 watt-hours
Specifically, advanced carbon fluoride batteries have a volumetric energy density of 700 to 1000 Watt-hours
per liter (Wh/l) compared to manganese dioxide's typical 500-650 Wh/1 in the form factors commonly used in medical implants.
Approximately two shot glasses of ethanol could yield enough hydrogen to generate 350 watt-hours
of electricity, enough to power half a dozen 60-watt lightbulbs for an hour.
of weight a rider carries, an additional 700 watt-hours
of energy is available (compared to ~350 watt-hours
for an ultra-high performance lithium-polymer battery at a weight of 7 lbs.
Providing remote devices using energy harvesting such as wireless sensor nodes and other micro-systems with onboard power storage, the THINERGY family of thin and flexible micro-energy cell (MEC) products from Infinite Power Solutions provide tens of Watt-hours
of energy, equivalent to or more than traditional primary cells that are hundreds of times larger in total volume.