We have experience with several different battery and inverter manufacturers so we can help with what will work best in your situation.
If you have 3 phase power you can install a large number of batteries and now there are solutions arriving for commercial and industrial sites allowing for hundreds of kWh of storage.

If you have an existing solar PV installation, you would need to swap your inverter for a hybrid inverter that can divert electricty to your batteries.
These are generally more expensive than a standard inverter but this is definitely possible to do, and if you are lucky enough to get the original feed in tariffs, this can be a sweet way of getting even more out of your system.