Camper off-grid scenario comparison calculator

Calculate end-of-day stored energy and unserved daily energy with your own figures.

Your numbers

Use the units shown. Results update as you change valid inputs.

Use end-of-day stored energy and unserved daily energy to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

Daily consumption (Wh)
500,600,550
Daily usable generation (Wh)
400,500,300
Initial usable stored energy (Wh)
1000
Maximum usable storage (Wh)
1200
End-of-day stored energy (Wh)
[900,800,550]
Unserved daily energy (Wh)
[0,0,0]
Curtailed surplus energy (Wh)
[0,0,0]

Try another scenario

Daily consumption (Wh)
501.0,600.0,550.0
Daily usable generation (Wh)
400,500,300
Initial usable stored energy (Wh)
1000
Maximum usable storage (Wh)
1200
End-of-day stored energy (Wh)
[899,799,549]
Unserved daily energy (Wh)
[0,0,0]
Curtailed surplus energy (Wh)
[0,0,0]
Calculation method

Calculation method

End-of-day stored energy (Wh)

Daily storage clamp(previous+generation-consumption,0,capacity); report negative deficit and overcapacity excess.

Unserved daily energy (Wh)

Daily storage clamp(previous+generation-consumption,0,capacity); report negative deficit and overcapacity excess.

Curtailed surplus energy (Wh)

Daily storage clamp(previous+generation-consumption,0,capacity); report negative deficit and overcapacity excess.

Symbols and units
a
Daily consumption (Wh)
b
Daily usable generation (Wh)
c
Initial usable stored energy (Wh)
d
Maximum usable storage (Wh)

Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.

Assumptions & limits

Assumptions & limits

  • Daily net-energy model; instantaneous power, charging constraints and within-day timing excluded. Supported limits: All required fields must be finite values of the exact declared type and within displayed bounds. Lists contain1–1000 finite numbers. JSON tables are numeric rectangular rows, at most100 rows and30 columns; individual tools have stricter shape/domain constraints. Daily net-energy model; instantaneous power, charging constraints and within-day timing excluded.
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