Enter TwoWaters
Automated system tourStarting immediately
HOME · LOADS · SECURITY · RESILIENCE ENERGY SHED · PHYSICAL CONTROL LAYER 6-PANEL ARRAY TWO INDEPENDENTLY TRACKED STRINGS · 1.40 + 0.92 kW Power wall · 24 V DC bus Pure sine inverter 4000 W STRING A · 1.40 kW STRING B · 0.92 kW BlueSolar MPPT 100 | 50 72.4 V BlueSolar MPPT 100 | 50 68.1 V 3.5 kW INV 2 8S LiFePO₄ battery · 8 kWh · 24 V TELEMETRY BRIDGEVenusOSdbus-serialbattery MESSAGE BUSMQTT30 s telemetry HA91 automations CHARGE PLANNERTightWatt 4.0protection before price GENERATION6 solar panelstwo independent strings1.40 + 0.92 kW CHARGE CONTROL2 × MPPT100 / 50 ENERGY STORE8 kWh bank8S · 24 V · BMS POWER OUT2 inverters4.0 + 3.5 kW GRID INPUTOctopus Agile48 half-hour slots CHARGE PLANNERTightWatt 4.0cutover horizon · likely loadsprotection before price TELEMETRYVenusOS · MQTTserial BMS HA91 automations FLEXIBLE LOADScharger · airersdishwasher · drying THE HOUSEpresence · camerassecurity · self-healing
Automated system intro

A house-sized systems experiment.

Six panels, eight battery cells, two inverters, one automation server and far too many dashboards.

Playing automatically · scroll at any time
01 · CAPTURE

It starts with six panels.

Two independently tracked strings turn changing light into two useful streams of DC power.

STRING A 1.40 kWSTRING B 0.92 kW
02 · ROUTE

Then it gets physical.

Two MPPT controllers meet a protected 24 V bus, dual inverter branches and a separately controlled grid charger.

solar DCcharging power
03 · STORE + OBSERVE

Eight cells become one instrumented bank.

The BMS reports cell-level state through dbus-serialbattery into VenusOS, then MQTT carries it into the house.

BATTERY 8 kWhBUS 24 V
04 · DECIDE

Telemetry becomes behaviour.

Home Assistant coordinates the house. TightWatt weighs demand, solar, Agile prices and protection gates before the charger moves.

telemetrydecisions
05 · CURRENT PROJECTS

Pick a system and go deeper.

The tour ends here; the projects carry on changing. Open the hardware, automations, controller, fitness app or websites behind the experiment.

Interactive system map · select a highlighted node