Powerwall- By Tesla motors

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Is the   “Power wall”  by TESLA , the  ultimate solution of power crisis over the globe? Before getting into it lets know some figures on power consumption

The world currently consumes 20 trillion kWh of energy annually.

Enough energy to power a single family  for 1.8 billion years or supply energy to a nuclear power plant for 2,300 years .

Resulting huge  emission of CO2 , US electric power sector alone produces over 2,000 million metric tons of CO2 which is like burning 225 billion gallons of gas. The EPA says it would require 1.6 billion acres of US forest to negate the environmental damage.powerwall-battery-group@2x

What if we could move the electricity grid off of fossil fuels towards renewable energy sources?

Once we’re able to rely on renewable energy sources for our power consumption, the top 50% of the dirtiest power generation resources could retire early. We would have a cleaner, smaller, and more resilient energy grid.

What is Powerwall ?

Tesla Powerwall is a rechargeable lithium-ion battery designed to store energy at a residential level for load shifting, backup power and self-consumption of solar power generation.Powerwall consists of Tesla’s lithium-ion battery pack, liquid thermal control system and software that receives dispatch commands from a solar inverter.

The unit mounts seamlessly on a wall and is integrated with the local grid to harness excess power and give customers the flexibility to draw energy from their own reserve.

Tesla will sell the Powerwall to home installers in two sizes:

  • The $3,000 model offers 7kWh, while the 10kWh version (which Tesla recommends for backup applications) will cost $3,500, both with a 10-year warranty.

Homes that need more power can chain multiple packs together. Keep in mind those prices don’t include inverter or installation costs.

The battery can provide a number of different benefits to the customer including:

  • Load shifting – The battery can provide financial savings to its owner by charging during low rate periods when demand for electricity is lower and discharging during more expensive rate periods when electricity demand is higher
  • Increasing self-consumption of solar power generation – The battery can store surplus solar energy not used at the time it is generated and use that energy later when the sun is not shining
  • Back-up power – Assures power in the event of an outage

Powerwall increases the capacity for a household’s solar consumption, while also offering backup functionality during grid outages.

Powerwall specs:

  • 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

 

 

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Source:TESLA

Tags: Powerwall , TESLA ,


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