Tesla Powerwall Friday, May 22 2015 

Tesla Powerwall is a wall-mounted battery system for storing energy generated by solar power panels and wind turbines. Powerwall is a product of Tesla Energy, a business division of Tesla Motors.

Tesla PowerwallPowerwall, which is aimed at the residential market, is designed to store power generated at peak solar time for use during power outages and out-of-peak solar time, including night. The system’s slim, modular design is adapted from the technology used in those for Tesla’s electric cars and can hold up to 7 kilowatt-hours of energy, which is enough energy to power a typical home in the United States for about 7 hours. A similar product, TeslaPowerpack, is aimed at the business and utility market. Both products are based on lithium ion battery technology.

Powerwall will be available in a 7 kilowatt hour (kW) model, designed for daily use applications, and a 10kwh model, designed for backup power. The units weigh about 220 lbs. Total capacity can be upgraded by modular connection of up to nine additional units. Tesla expects to start shipping Powerwall sometime during the summer of 2015.

Tesla provides the following specifications for Powerwall:

  • Mounting: Wall Mounted Indoor/Outdoor
  • Inverter: Pairs with growing list of inverters
  • Energy: 7 kWh or 10 kWh
  • Continuous Power: 2 kW
  • Peak Power: 3.3 kW
  • Round Trip Efficiency: 92%
  • Operating Temperature Range: -20C (-4F) to 43C (110F)
  • Warranty: 10 years
  • Dimensions: H: 1300mm W: 860mm D:180mm

Watch a video introduction to Powerwall:

This was last updated in May 2015
Contributor(s): Matthew Haughn
Posted by: Margaret Rouse

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Defiition of mAh Wednesday, Apr 29 2015 

I’m beginning to realize just how important energy is to me in so many ways.  To run my devices, cars, microwave, refrigerator, myself and most importantly in Florida, where I live, an air conditioner.

Milliamp Hour (mAh)t Milliamps Hour (mAh) is important because it’s the easiest way to distinguish the strength or capacity of a battery. The higher the mAh, the longer the battery will last. Batteries with different mAh ratings are interchangeable. If your battery is rechargeable then the mAh rating is how long the battery will last per charge.

Milliamps Hour is 1/1000th of an Amp Hour, so a 1000mAh = 1.0Ah

images

Think of a car’s gas tank.  Voltage is how much gas is being used, and mAh is the size of the gas tank.  The bigger the gas tank (mAh) rating the longer the device will run. If your battery is rechargeable, then think of the gas tank as refillable (rechargeable).

mil·li·am·pere

(mĭl′ē-ăm′pîr′)

n. Abbr. mA

A unit of current equal to one thousandth (10-3) of an ampere.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

mil•li•am•pere

(ˌmɪl iˈæm pɪər, -æmˈpɪər)

n.

1/1000 of an ampere.
[1890–95; < French]
Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun 1. milliampere - one thousandth of an amperemilliampereone thousandth of an ampere

current unit – a measure of the amount of electric charge flowing past a circuit point at a specific time
amp, ampere, Athe basic unit of electric current adopted under the Systeme International d’Unites; “a typical household circuitcarries 15 to 50 amps”
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


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