Examples
Examples
Try the starting example
- User-permitted battery discharge energy (kWh)
- 15
- Discharge limit (kW)
- 5
- Battery-to-building efficiency (fraction)
- 0.9
- Available building load slots (kW)
- 4,8,2
- Slot duration (hours)
- 1
- Potential building energy covered (kWh)
- 11
- Uncovered building energy (kWh)
- 3
Try another scenario
- User-permitted battery discharge energy (kWh)
- 8
- Discharge limit (kW)
- 3
- Battery-to-building efficiency (fraction)
- 0.8
- Available building load slots (kW)
- 2,6
- Slot duration (hours)
- 2
- Potential building energy covered (kWh)
- 6.4
- Uncovered building energy (kWh)
- 9.6
Calculation method
Calculation method
Potential building energy covered (kWh)
min(permitted battery energy×efficiency, sum(min(load,discharge limit)×slot hours)).
Uncovered building energy (kWh)
Total available-window load energy minus potential covered energy.
Symbols and units
- a
- User-permitted battery discharge energy (kWh)
- b
- Discharge limit (kW)
- c
- Battery-to-building efficiency (fraction)
- d
- Available building load slots (kW)
- e
- Slot duration (hours)
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Calculation steps and notation
sum(list) adds all entries in the list.
Assumptions & limits
Assumptions & limits
- Aggregate discharge energy potential, conditional on user-confirmed hardware permission; no grid interconnection assessment. Supported limits: All numeric inputs and computed intermediates must remain finite. Supported numeric input magnitude is zero or 1e-12 through 1e12 in absolute value; reject values outside this bounded range. All lists/JSON record tables are limited to 100 records unless a stricter bound is stated; reject malformed record arity and wrong member types. All numeric values must be finite. Lists contain at most 100 records; required lists must be nonempty. Rates, probabilities and fractions are entered as fractions, not percentages; fractions must be between 0 and 1. Use a single consistent user-selected currency for all amounts; no exchange-rate conversion.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.