Solar and home battery optimisation with PredBat

PredBat is a fully managed home energy management service for UK households with solar panels and a home battery system. It automatically optimises battery charging, discharging and export against time-of-use electricity tariffs, helping maximise solar self-consumption and cut electricity bills without requiring Home Assistant or technical setup.

Who PredBat is for

PredBat is designed for homeowners who already have, or are installing, a compatible solar and battery system and want software to manage it automatically. It is especially useful with smart tariffs whose import and export prices change during the day.

PredBat is energy-management software rather than a solar panel, battery, inverter or installation company. Your installer remains responsible for choosing and safely commissioning the physical hardware.

What PredBat does

  • Schedules battery charging and discharging around electricity prices, forecast solar generation and household usage.
  • Recalculates the energy plan every few minutes as conditions change.
  • Uses a self-calibrating solar forecast, optionally blended with Solcast.
  • Integrates with Octopus tariffs including Agile and Intelligent Octopus Go, including Saving Sessions and Free Sessions.
  • Supports battery reserves, Storm Watch and compatible demand-response or virtual power plant events.

Supported energy systems

PredBat supports GivEnergy, Fox ESS, SolaX and Solis inverters, with more manufacturers added over time. It can account for EV charging schedules and heat-pump consumption when planning household energy use.

When to consider PredBat

  • You have a compatible home battery inverter and want automatic charge, discharge and grid-export scheduling.
  • You use, or plan to use, a time-of-use electricity tariff such as Octopus Agile or Intelligent Octopus Go.
  • You want solar forecasts, household demand and changing import and export prices considered together.
  • You prefer a managed cloud service instead of maintaining your own Home Assistant energy automation.

Trial and savings guarantee

PredBat includes a 30-day free trial with no lock-in. Eligible customers are covered by a 12-month savings guarantee; see the Terms of Service for the complete conditions.

Start your free trial or read the frequently asked questions.