A computer-implemented method predictively prepares a water provision system installed in a building. The water provision system includes a heat pump configured to transfer thermal energy from the surrounding to a thermal energy storage medium and a control module configured to control operation of the heat pump. The water provision system is configured to provide water heated by the thermal energy storage medium to an occupant of the building at one or more water outlets. The method is performed by the control module and includes: receiving a current location of the occupant, estimating an expected arrival time for the occupant to arrive at the building based on the current location, and determining an expected occupancy of the building based on the expected arrival time.

The present disclosure relates to modulating energy consumption by a water provision system installed in a building, including one or more electrical heating elements operable to heat water, a heat pump configured to transfer thermal energy from outside the building to a thermal energy storage medium inside the building and a control module configured to control operation of the water provision system, the water provision system being configured to provide water heated by the one or more electrical heating elements and/or the thermal energy storage medium to one or more water outlets, This can include: determining a level of energy demands of a geographical region comprising the building; and upon determining that the level of energy demands is high, controlling the water provision system to switch from using the one or more electrical heating elements to the thermal energy storage medium for provision of heated water.

The present disclosure relates to modulating energy consumption by a water provision system installed in a building, including one or more electrical heating elements operable to heat water, a heat pump configured to transfer thermal energy from outside the building to a thermal energy storage medium inside the building and a control module configured to control operation of the water provision system, the water provision system being configured to provide water heated by the one or more electrical heating elements and/or the thermal energy storage medium to one or more water outlets, This can include: determining a level of energy demands of a geographical region comprising the building; and upon determining that the level of energy demands is high, controlling the water provision system to switch from using the one or more electrical heating elements to the thermal energy storage medium for provision of heated water.

One example embodiment relates to a water heater controller. The water heater controller includes an operating conditions circuit structured to receive temperature measurement signals indicative of temperatures over time of water in a tank of a water heater, and occupancy measurement signals indicative of whether individuals are present in an area proximate the water heater. A drift threshold circuit is structured to, in response to the occupancy measurement signals indicating that an individual is present or not present, define a plurality of drift threshold levels to trigger operation of a heating element of the water heater. A control circuit is structured to controllably operate the heating element based on the occupancy measurement signals and on the plurality of drift threshold levels.

A water heating control system has a tank for holding a volume of water heated by a heater and having a hot water outlet and a cold water inlet connected to a main water supply whereby hot water removed from the hot water outlet is replenished with cold water. A temperature sensor provides a temperature signal indicative of water temperature in the tank, and a control unit monitors the water temperature based on the temperature signal and is responsive to selection of a Sabbath mode of operation for periodically actuating and de-actuating the heater while maintaining an average water temperature to less than a permitted preset threshold. In Sabbath mode the control unit closes a shut off valve connected to the water inlet when the heater is actuated and opens the shut off valve when the heater is not actuated.

A weather forecast-based fluid heating control system having at least one hot fluid delivery point, the control system including a controller adapted to control a fluid supply to a setpoint temperature, a means for obtaining the forecasted air temperature at a future time of the location of the control system and a means for obtaining the current air temperature at a current time of the location of the control system. The setpoint temperature of the fluid supply is adjusted by an adjustment amount if the difference between the forecasted air temperature of the location of the control system and the current temperature at the current time of the location of the control system exceeds a pre-determined threshold.