On-site generation

Solar PV and electric heating

Coordinate heating and cooling with solar generation to increase direct self-consumption and reduce electricity cost.

Why timing matters

Annual PV generation alone does not show how much electricity is used directly. The hourly or interval match between production and demand determines self-consumption and grid exports.

Heat as storage

A buffer tank, floor heating and building thermal mass can store heat. Within comfort and technical limits, a heat pump can operate more during solar production and less when the facility would import expensive electricity.

Integrated control

A useful strategy considers forecasts, required temperatures, heat-pump efficiency, other facility loads, grid limits and electricity prices. The objective is a technically safe schedule, not simply switching equipment on whenever the sun shines.