One offer sizes from bright-day export alone.
THE EXETER FIELD GUIDE / HOME BATTERIES
Home battery installers in Exeter
Summer export can overstate how often a battery will cycle. Compare it with winter imports and evening use in an Exeter storage case.
START WITH THE PROPERTY
Use measured surplus where possible
For an Exeter home with existing solar, export readings and evening consumption are more valuable than the panel rating alone. They help estimate how often a proposed battery could genuinely charge and empty.
BEFORE YOU ACCEPT A QUOTE
Test the sunny-day story against winter
Ask for seasonal assumptions in the savings illustration. A battery sized around a bright summer surplus may spend much of the year underused, while a tariff-charging strategy has different costs and controls.
ILLUSTRATIVE QUOTE COMPARISON
Does summer surplus justify year-round capacity?
Another models winter imports, evening demand and any off-peak charging strategy.
THE DECISION
Ask how often the battery is expected to fill and empty in each season. Annual value cannot be inferred from the sunniest week.
ANOTHER PROJECT AT THE SAME ADDRESS?
Explore the other options in Exeter.
NEXT STEP IN EXETER
Check the battery's connection method.
Good export data does not guarantee compatibility with existing solar. Send the inverter model and ask whether the storage connects separately or requires replacing equipment.