| Priority | Load Type | Action at demand > limit | |----------|-----------|--------------------------| | 1 (low) | Water heater | Shed first | | 2 | HVAC – stage 2 | Shed second | | 3 (high) | Lighting, critical | Never shed | | Signal | Source | Use | |--------|--------|-----| | Energy pulses (kWh) | Utility meter / CT + energy IC | Calculate delta per sub‑interval | | Voltage, Current | Power quality meter | Compute kVA if PF varies | | Relay outputs | PLC / MCU | Load shedding control | | Real‑time clock | RTC / NTP | Timestamp peaks |
# Update peak if demand_kw > self.peak_demand_kw: self.peak_demand_kw = demand_kw self.peak_timestamp = now_timestamp maximum demand electrical
CREATE TABLE md_log ( id INTEGER PRIMARY KEY, timestamp DATETIME, demand_kw REAL, peak_flag BOOLEAN ); CREATE TABLE md_config ( param TEXT PRIMARY KEY, value REAL ); -- e.g., ('limit_kw', 150.0), ('warning_pct', 80.0), ('window_min', 15) | Priority | Load Type | Action at
