When a battery does not earn its keep
Storage is the most requested and least interrogated line on a commercial proposal.
Storage gets asked for by name more often than any other component, and it is the one most likely to be included because it was asked for rather than because it returns anything.
A battery earns its keep in three situations: when the tariff has a spread worth arbitraging, when demand charges can be shaved, or when an outage genuinely costs the business money. If none of those apply at the site, the storage is a capital cost with a maintenance schedule attached.
So it gets modelled the same way the array does, against the load shape and the tariff, before a kWh figure goes on paper. Sometimes the answer is a smaller battery. Sometimes it is no battery yet, and a switchboard that will take one later without being rebuilt.
Saying so at quote stage is less comfortable than including it. It is also the only version of the conversation that survives the twenty years the system is supposed to run for.
A site visit and your interval data come before any number does. Request a quote.
New Ability Energy