Immanuel Lam
Built at Built with Opus 4.7: a Claude Code hackathon · Apr 21, 2026 · Remote

An autonomous agent that re-plans a 64 kWh Sigenergy battery's charge/discharge schedule every 30 minutes against live AEMO wholesale prices, BOM weather forecasts, and Home Assistant sensor data. Every time the plan changes, Opus 4.7 writes a two-sentence rationale explaining what shifted and why. Backtest over 7 days of real household data: agent beat Amber SmartShift's actual dispatch by $5.91/day — by correctly refusing to export when NSW1 prices were negative all week. The win is knowing when not to act.