An illustration of how a fleet of identical home batteries adds up for one event. Every input is yours to change. The defaults are the page's example: Powerwall 3 North America datasheet (2024) figures of 11.5 kW and 13.5 kWh nominal, plus assumed participation, state of charge and reserve. Not a programme result.
| Result | Value |
|---|---|
| Batteries taking part | - |
| Energy above reserve, per battery | - |
| Average output per battery | - |
| What limits it | - |
| Deliverable power | - |
| Energy over the event | - |
| Rated power of the whole fleet | - |
| Deliverable as a share of rated | - |
| Deliverable MW (other inputs as above) | SoC 50% | SoC 70% | SoC 90% |
|---|---|---|---|
| 20% take part | - | - | - |
| 40% take part | - | - | - |
| 60% take part | - | - | - |
Method: energy above reserve = kWh x (SoC - reserve), never below zero. Output per battery = the smaller of the rated kW and that energy divided by the event hours. Fleet MW = batteries taking part x output. Uses one average state of charge for every battery. That is exact only if no battery is below its reserve or at its power limit. Otherwise it can under- or over-state the total. Discharge losses are ignored because the datasheet energy is AC. Thousands commas are accepted (1,000). Write decimals as 13.5 or 13,5; "1.000" is refused as unclear. A design aid, not a quote.