How many watt-hours per day does this build actually consume?
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All three are calculated regardless. This sets which is shown first.
Drives usable depth of discharge and round-trip efficiency.
Days the bank must carry with no meaningful charge input.
Conservative shoulder-season default. Location-specific figures are T2’s job.
Drives the array derate factor.
Site default is 88% and is shared with every other calculator here.
Locked project constant. Added automatically, not entered as an appliance.
Hours per day means hours the appliance is actually drawing power, not hours it is switched on. The fridge and air conditioning defaults already have duty cycle folded in — do not double-count them.
Daily energy requirement
Battery bank
Solar array
Breakdown
Where this goes next
The other calculators