Electric car company Tesla recently introduced an array of batteries called 'Tesla Energy' that are aimed for home, business and in utility use that are clean, renewable and will lessen our dependence on fossil fuel in the power grid as claimed by the automaker.

Their first rechargeable lithium-ion battery pack is called Powerwall which was designed to harness, store and power a residential home. It works by integrating with the power grid (or solar grid) and gathers excess energy and stores it for later use. It can also charge and store energy from solar panels as it also has a solar inverter. Tesla stated that it will increase a home's energy capacity while also providing alternative energy.

The Tesla Powerwall

Functions of the Powerwall battery include: Load Shifting wherein it charges itself when demand for electricity is low and only discharges when demand for electricity is high, Solar Power Generation and Consumption which stores surplus solar energy for later use, and Back-up Power which as the name implies, provides power during blackouts.

Available in either 10kWh or 7kWh settings, Powerwall can be mounted inside or outside any home and comes with the solar inverter as standard. It measures 1300mm tall, 860mm wide and 180mm in diamter. Continuous power rating is at 2kW while Peak Power is rated at 3.3kW. It has an operating temperature range between -20 degrees Celsius and 43 degrees Celsius and a 10-year warranty.

The 10kWh unit currently retails for $3500 (about PhP155,700) while the 7kWh Powerwall is priced at $3000 (about PhP 133,455).