A more recent trend is to package hybrid inverters together with a battery system in one complete unit. These systems are known as a BESS -BATTERY ENERGY STORAGE SYSTEM.
These can be retrofitted to a home with an existing solar system and are available in a variety of sizes and are usually about the size of a medium size fridge.
There are two types of BESS systems. The common, AC Coupled, battery systems, such as the TESLA POWERWALL 2 and the all-in-one ALPHA-ESS BESS systems, which include a solar inverter and are DC coupled.