my-PV AC•THOR – PV Power Manager 3 kW for Hot Water and Heating with Solar Power

my-PV AC•THOR – PV Power Manager 3 kW for Hot Water and Heating with Solar Power

Steplessly controlled photovoltaic power manager for hot water, heating and electrical heat sources

The my-PV AC•THOR is a 0–3 kW steplessly controlled photovoltaic power manager for hot water and heating – a compact home technology hub in A5 format. It automatically controls electrical heat sources based on available PV surplus and heat demand, and is suitable for hot water, space heating, underfloor heating, infrared panels and heat pumps. In a residential building built or renovated to current energy standards, the AC•THOR can completely replace conventional hydraulic heating technology – cables instead of pipes, electricity instead of hydraulic systems. According to the manufacturer, up to 85% PV self-consumption is achievable even without battery storage, with cost savings of up to 30% compared to conventional systems.

Applications and operating modes overview

The AC•THOR covers a wide range of applications: photovoltaic hot water preparation, stratified charging of buffer tanks, space heating via electric heating mats or infrared panels, underfloor heating and PV integration of standard heat pumps (PV-ready). Multiple operating modes allow hot water, stratified charging, space heating, heat pumps and combined heating circuits to be realised. A second heating element (max. 3 kW) can be switched via the switching output for temperature backup – enabling a total of up to 6 kW, while the power unit continues to regulate steplessly up to 3 kW. The AC•THOR can also be used as a dump-load controller in off-grid systems. The building mass itself – such as screed floors – can be used as thermal storage.

System integration – battery storage, smart home, inverters and balcony power stations

In combination with the my-PV WiFi Meter, the AC•THOR uses only surplus PV energy for heat generation – including in combination with balcony power stations and micro-installations. Since energy fed into the grid from balcony power stations is not remunerated, the WiFi Meter captures PV surplus in real time and transmits the information to the AC•THOR, which uses the energy steplessly for hot water preparation. According to my-PV, this can reduce grid feed-in from a 2 kWp balcony power station by up to 84% and cover up to 47% of annual hot water demand with solar energy. As a hybrid storage system, the AC•THOR optimally complements battery storage: the battery is charged first, after which the AC•THOR stores remaining surplus in hot water or building mass. Compatible systems include Fronius GEN24, Huawei EMMA, KOSTAL PLENTICORE, SolarEdge as well as Sungrow and Solis. Thanks to its open system design, the AC•THOR also communicates with numerous smart home and energy management systems via Ethernet RJ45 and RS485. As compatibilities are subject to change, we recommend verifying the current list with the manufacturer before purchasing.

Optional functions and cloud features

Any remaining energy shortfall can optionally be drawn from the public grid – making it unnecessary to start a conventional heating system. The AC•THOR supports the my-PV cloud features SPO (Solar Peak Optimizer) and DTO (Dynamic Tariff Optimizer). The SPO responds to negative exchange electricity prices and starts heat generation exactly when no EEG remuneration is paid – ideal for new PV systems in Germany from 2025. The DTO automatically optimises heat generation based on the cheapest exchange electricity prices from 22 European countries – also for periods of low PV yield or at night.

Scope of delivery:

• AC•THOR (incl. 2.8 m connection cable)
• my-PV temperature sensor 5 m

Features:

• Stepless control from 0–3 kW – up to 85% PV self-consumption even without battery storage
• Hot water and heating with solar power – one device for all electrical heat sources
• Underfloor heating, infrared, heat pumps and stratified charging – universally applicable
• Up to 6 kW via switching output – second heating element for temperature backup
• Building mass usable as thermal storage – enormous storage capacity at no extra cost
• Hybrid storage system with battery – optimal priority control between battery and thermal storage
• Also suitable for balcony power stations – maximises self-consumption even of small PV surpluses
• Can be used as dump-load controller in off-grid systems
• Supports my-PV SPO and DTO cloud features
• Colour touch display 2.83" – commissioning without additional tools
• Exceptionally compact – only 1.5 kg, residential design
• All connections plug-in – no opening of the device required
• No thyristor controller – EMC and grid compliant, THDi < 3%
• 2-year manufacturer's warranty

For further technical details and notes, please refer to the datasheet.