Power & Energy Sensors on OGLAS — Off-Grid Local Alert System

Power Management

Mon, 01 Jan 0001 00:00:00 +0000

Power management sensors read the system that keeps everything else running: your solar and battery setup. They’re sensors like any other in OGLAS — they measure something off the world and report it — but what they measure is power production, battery state, and load, and they make it available to your hubs, your dashboards, and your smart switches.

The first of these reads a Victron MPPT.

Victron MPPT

If your power comes from solar — most off-grid sites — the Victron power-management sensor pulls production data into the same dataset as everything else.

Smart Switch

Mon, 01 Jan 0001 00:00:00 +0000

The OGLAS Smart Switch is the active end of the network. Where the other sensors measure and report, the Smart Switch acts — turning a load on and off based on conditions you’ve defined, and reporting back not just whether it switched but whether the load is actually working.

What it does

A Smart Switch decides whether to be on or off using one or more of:

Power-management data — reads incoming watts, battery state, and load from a power-management sensor (e.g. Victron MPPT). Run the relay on stable solar surplus.
Sensor data — subscribe to readings from other OGLAS sensors. Tank dropped below 200 mm? Soil moisture below threshold? Battery bank above 90 %? React.
Web / API data — when Wi-Fi is available, pull from a local server, MQTT broker, or HTTP endpoint. Used for off-property triggers that need external data.
Weather data — forecast and current conditions from a weather API. “Run only when the next 6 hours are clear” is one rule that uses this.

Multiple inputs combine with AND/OR rules in the device config. None of this requires a cloud account — see Your data is your data.

Power Monitoring

Mon, 01 Jan 0001 00:00:00 +0000

Power Management reads your solar charge controller. Power Monitoring reads everything else — because plenty of off-grid power doesn’t come from a Victron MPPT.

What it does

Reads any source — mains feed, generator output, a battery bank via a shunt, or an individual circuit. AC or DC.
Measures voltage, current, and energy — instantaneous draw and accumulated kWh, per source or per circuit.
Finds the hogs — which load is quietly eating your battery overnight, and which circuit’s draw is creeping up.
Logs locally — every reading to your hub in open formats, no utility portal — see Your data is your data.

Hardware

Current transformers (AC) or a DC shunt feeding an OGLAS node, sized to the circuit. Multiple channels for a switchboard; a single channel for one load.