Battery Storage for Solar Systems
Adding battery storage to a solar system changes what the system is for. Without storage, surplus production is exported or curtailed and the building buys energy back in the evening. With storage, that surplus is kept on site and used when the building needs it. The right storage format depends on scale: a single lithium battery serves a home or small site, while a cabinet system serves a commercial or industrial load.
Both documented families on this site — the lithium solar battery and the BESS cabinet — are presented as storage for solar systems, and the sizing material here is organised around the pairing questions: how much surplus your array produces, which loads matter most, and how many hours of cover you are planning for. The sizing comparison page puts the two formats side by side at family level, and the sizing guide turns the answers into an enquiry.
Start with the pairing, not the product
- Array first: what the solar system produces across a typical day
- Loads second: what must keep running, and when
- Storage third: the format and capacity that bridge the two