A battery can store surplus solar for later. The useful capacity depends on how much is available to charge it and how much electricity you need afterwards.
Battery Storage
Would a battery suit your home?
A battery can store electricity for later use. Whether it is worth including depends on your solar generation, when you use electricity and your budget.
We use GoodWe and Sigenergy equipment. Check the proposed model, usable battery capacity, warranty and compatibility rather than comparing brand names alone.
A battery does not automatically keep your home running during an outage. Backup needs a suitable design and may require extra equipment. Ask which circuits would be supplied.
Before deciding Include a battery now, or consider it later?
Ask us to explain the difference between a solar system with storage and one without it. Battery capacity, equipment location and the cost of any later upgrade should be clear.
If backup matters to you, raise it at the survey. The proposal needs to state what is included and what the system can supply during a power cut.