Solar System Size Calculator
South West Tech — what size solar do you actually need?
— kW solar suggested
| Your estimated daily use | — |
| Estimated annual generation | — |
| Estimated bill reduction | — |
| Approximate payback | — |
| Recommended battery range | — |
Estimate only — assumes ~$1,100 per kW installed after the STC rebate, 5c/kWh feed-in, and panels at ~5 m² per kW. Network export limits vary — we confirm with Ergon for your connection. South West Tech — 0488 224 284.