Examples
Examples
Try the starting example
- Observed sunlight windows: start HH:MM, end HH:MM, measured average W
- 09:00,11:00,20 12:00,15:00,30
- Energy over observed windows (Wh)
- 130
- Total observed window hours
- 5
- Time-weighted observed power (W)
- 26
- Largest entered average-window power (W)
- 30
Try another scenario
- Observed sunlight windows: start HH:MM, end HH:MM, measured average W
- 09:00,11:00,20 12:00,15:00,10
- Energy over observed windows (Wh)
- 70
- Total observed window hours
- 5
- Time-weighted observed power (W)
- 14
- Largest entered average-window power (W)
- 20
Calculation method
Calculation method
Energy over observed windows (Wh)
Sum window duration hours × measured average power.
Total observed window hours
Sum nonoverlapping supplied window durations.
Time-weighted observed power (W)
Observed Wh / observed hours.
Largest entered average-window power (W)
Maximum measured average-power entry; this is not instantaneous peak power.
Symbols and units
- a
- Observed sunlight windows: start HH:MM, end HH:MM, measured average W
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
- A daily observation ledger, not a solar forecast. Power values must be measured interval averages; cloud changes, shading outside the intervals, battery losses and future weather are not estimated.
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.
Further reading
OpenStax: arithmetic and geometry ↗
Background reading; this does not imply endorsement or independent review of SumFizz.