Why add battery storage to your solar PV system?
A large portion of the energy you generated will be exported to the grid because it is unused. You can get paid for this exported energy but at a fraction of what it would cost you to buy back.
Adding battery storage will help you store your excess generation (that would normally be exported) for use later when your consumption is higher than your generation. As electricity prices rise this sort of battery storage system will become more and more cost effective.
Add battery storage to your system and be on your way to self-sufficiency.
Provide back-up power for security
Lots of properties across the UK and beyond have frequent power cuts and it's possible this will become more of an issue in years to come.
Adding battery storage for back-up will secure you against power cuts.
Back-up power systems can be more expensive than simply adding storage to increase self-consumption but this entirely depends on how long you will need to rely on the battery system
|SMA Sunny Boy Storage||SMA FSS||SMA FSS + Back-up||Victron ESS||Fronius GEN24|
|Power in the event of a power cut|
|Solar operates when there is a power cut|
|Battery size||5.1 - 66.3 kWh||Flexible||Flexible||Flexible||5.1 - 57.9 kWh|
|Retrofittable to almost any solar system|
|Minimal battery knowledge required to install|
|Compatible batteries*||BYD HVS/HVM Lithium||All Lead-Acid, BYD LVS/LVL and Tesvolt LV||All Lead-Acid, BYD LVS/LVL and Tesvolt LV||All Lead-Acid + Victron, BYD LVS/L||BYD HVS/HVM Lithium|
|Monitoring||SMA Sunny Portal + App||SMA Sunny Portal + App||SMA Sunny Portal + App||Victron VRM Portal + App||Fronius Solar.Webb + App|
*Others may be available, see manufacturer's guidance.