Home Energy Management System (HEMS) is a system for:

• monitoring electricity flows at home (consumption, production and storage),
• control of key consumers,
• optimizing consumption in terms of reducing consumption and using cheaper energy to ensure the same comfort with lower costs.

It consists of an HEMS master controller (MC-230).

The measurement of electrical power and energy of all energy sources and main electrical consumers is provided by single-phase (PM1-E-D) and three-phase (PM3-I-D and PM3-E-D) power sensors which are connected directly to HEMS master controller MC-230. It supports:

• 1 grid power sensor
• up to 3 sensors for local power plants (PV, Wind, Cogeneration, Generator, etc)
• up to 2 local storage systems (home battery)
• up to 4 managed consumers (electrical heating, electrical water heater, washing machine, tumble dryer, …)

Are used for control of managed consumers. Power relays are toggling power supply or enabling signal for the operation of the device. They are controlled directly from HEMS master controller MC-230.

Are used for manual control of managed devices. Push buttons are directly wired to HEMS master controller MC-230.