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Residential Energy Storage Systems (RESS)

About

Residential Energy Storage Systems, often referred as household or home energy storage systems are designed to store electricity for home use.

These systems consist of batteries and inverter, which allow you to store energy from various sources, such as solar panels, wind turbines, public grid or other energy generators. The main purpose of those installations is to increase the effectiveness of home power systems, reduce electricity costs and to provide uninterruptible, reliable power supply. Surplus of energy produced during daytime can be stored and used during the evening or in case of grid shortage, reducing home dependency on electricity grid. New applications such as VPP (Virtual Power Plant) participation can increase the profitability of residential systems even further.

How does a Residential Energy Storage System work?

We can imagine home energy storage system as a rechargeable battery used for example in your phone, computer or car. Electricity produced from various sources like solar panels, wind turbines or other power generators is being used to charge the battery in form of direct current (DC).

To make it available for most household appliances, the energy is later transformed via power conversion system into alternating current (AC), used by most electronic devices at home. The primary source of energy to charge the batteries is surplus energy generated during high-production and low-demand periods.

Intelligent Energy Management Systems (EMS) take care of monitoring whole household and optimizing power distribution and use by using the desired pre-defined programs. The excess energy can also be sold back to the grid in periods of higher price on the market.