scratchbro:
We use more power in Nigeria plus AirConditioners are not bery good to be used on a DC power source (battery). First thing im calculating is, how will a 1.5kva AC hold up. It will carry the AC tho but the battery will drain up faster. Plus we all know how we need AC's in nigeria. Not as a luxury but a neccesity.

ooshinibos:
US electric carmaker Tesla Motors has unveiled batteries that can power homes and businesses as it attempts to expand beyond its vehicle business.

Chief Executive Elon Musk announced the firm would build batteries that store solar energy and serve as a back-up system for consumers during blackouts.

The device would allow consumers to get off a power grid or bring energy to remote areas that are not on a grid.

Tesla plans to start shipping the units to installers in the US by this summer.

In a highly anticipated event near Los Angeles, Mr Musk said the move could help change the "entire energy infrastructure of the world".




"Tesla Energy is a critical step in this mission to enable zero emission power generation," the company said in a statement.

The rechargeable lithium-ion battery unit would be built using the same batteries Tesla produces for its electric vehicles, analysts said.

The system is called Powerwall, and Tesla will sell the 7kWh unit for $3,000 (£1,954), while the 10kWh unit will retail for $3,500 (£2,275) to installers.

To help comparisons, Tesla provided estimates of how much energy is used by different devices in the home. A flat-screen TV uses about 0.1kWh, a tumble dryer 3.3kWh and a laptop 0.05kWh.

Energy comparison firm USwitch estimates that a small family in a three-bedroom house in the UK uses about 3,200kWhs of electricity a year.

Mr Musk said the company would partner with SolarCity to install the home batteries, but there would be more companies announced.

source :http://www.bbc.co.uk/news/technology-32545081