Solar panels produce electricity during the day, but the biggest amount of electricity is used in the evening. Solar Battery Storage helps bridge this gap by storing spare energy for later use.
Panels Capture the Sunlight
The power generated by solar panels is initially in the form of Direct Current (DC) or electricity, but this is changed into Alternating Current (AC) or electricity by an inverter for use in the home. A typical 4kW solar panel system on a south-facing roof in Hereford could produce around 3,500 – 4,000 units of electricity per year, depending upon the level of cloud cover and the orientation and aspect of the roof.
The Inverter Converts the Current
The DC electricity from the panels is fed into the inverter. The inverter then changes the DC electricity into 230V Alternating Current (AC) electricity, which is the sort of electricity that your home uses. Some solar panels have a hybrid inverter. This is a special inverter which not only changes the DC electricity into AC but also manages the battery as well. The hybrid inverter is often preferred because it keeps the amount of wiring down.
The Battery Stores What You Don’t Use
There’s also surplus power generated by your home’s solar panels that are not used by your home’s appliances in the day. This surplus power will be stored in the battery for your home’s use in the evening instead of being exported to the grid. Most Solar Battery Storage Hereford systems use a lithium-ion battery for their home energy storage needs, with capacities ranging from 5kWh to 15kWh. This amount of battery power will cover most of an average home’s evening power usage.
Your Home Draws from the Battery First
Even after dark your home will use power stored in the battery before drawing it from the grid. The battery’s smart management system is constantly monitoring the charge in the battery and automatically switches between using power from the battery or from the grid as required.
How the Grid Fits In
When the battery is full, excess electricity can be exported to the grid.
For Solar Battery Storage Hereford, visit https://www.precisiongreenenergy.co.uk/renewables/solar-battery-storage/hereford/.
By learning how your system works from day one, you can get the most out of it.