--- path: "/" locale: en-gb alternates: x-default: "/en-gb/information-resources/blog/how-my-pv-sets-the-new-standard-for-thermal-storage" en-gb: "/en-gb/information-resources/blog/how-my-pv-sets-the-new-standard-for-thermal-storage" nl-nl: "/nl-nl/informatie-resources/blog/van-zonnestroom-naar-warmte-hoe-my-pv-de-nieuwe-standaard-zet-voor-thermische-opslag" de-de: "/de-de/informationen-ressourcen/blog/wie-my-pv-den-neuen-standard-fuer-thermische-speicherung-setzt" fr-fr: "/fr-fr/informations-ressources/publications/comment-my-pv-definit-le-nouveau-standard-du-stockage-thermique" it-it: "/it-it/informazioni-risorse/argomenti/come-my-pv-definisce-il-nuovo-standard-per-l-accumulo-termico" title: "How my-PV sets the new standard for thermal storage" description: "With technology from my-PV – a leading Tier 1 brand – excess solar energy is no longer a cost burden, but a valuable source for heating." type: information-resource --- # ESTG ![How my-PV sets the new standard for thermal storage](https://a.storyblok.com/f/288569/2000x2000/710a48fbc3/how-my-pv-sets-the-new-standard-for-thermal-storage.png) # How my-PV sets the new standard for thermal storage The energy market is evolving at a rapid pace. While the focus used to be on maximizing yield through feed-in tariffs, the priority has now shifted to self-consumption. For installers, this means a shift in consultancy: moving from being a pure [PV provider](/assortment/solar/) to becoming a specialist in integrated energy management. With technology from [my-PV](/brands/my-pv/) – a leading Tier 1 brand – excess solar energy is no longer a cost burden, but a valuable source for heating. ## Why thermal storage is essential in 2026 Storing energy in [batteries](/assortment/storage/) is popular, but for the massive heat demand of a household (domestic hot water and space heating), an electric battery is often too small or too expensive. A hot water boiler or buffer tank, however, acts as a cost-effective "thermal battery." The innovation of my-PV, such as the **AC ELWA 2** and the **AC•THOR**, utilizes infinitely variable control. This is technically crucial: instead of an element that is simply "on" or "off," my-PV adjusts the power exactly to the available surplus. This means that even a cloudy day can be used to heat water, directly lowering the end customer's energy bill. ## System openness as a commercial advantage As an installer, you don't want to be limited by hardware constraints. my-PV systems excel in system openness. They integrate seamlessly with [inverters](/assortment/solar/inverters/) from other Tier 1 brands such as SMA, SolarEdge, Huawei, and Growatt. Whether you are designing a new system or upgrading an existing installation (retrofit), my-PV offers the flexibility needed for both single-family homes and large apartment complexes. ## Conclusion: The future is integrated By bridging the gap between solar power and heat, you offer your customers a complete solution that goes far beyond electricity. Thermal storage with my-PV is the missing link in a fully optimized home energy system. It increases the return on investment of the PV installation, enhances the home's energy rating, and provides the independence that the modern consumer demands. ## Spotlight Products () - **My-PV AC ELWA 2** — [Art.No.: 16-0150](https://www.estg.eu/en-gb/16-0150/my-pv-ac-elwa-e-2) - **My-PV AC•THOR 9s** — [Art.No.: 20-0300](https://www.estg.eu/en-gb/20-0300/mypv-ac-thor-9s) - **My-PV ELWA / PV Hot Water Unit, rated power DC 2kW** — [Art.No.: 12-0100](https://www.estg.eu/en-gb/12-0100/mypv-elwa-pv-hot-water-unit-rated-power-dc-2kw) - **My-PV AC•THOR Power Manager 3 kW** — [Art.No.: 20-0100](https://www.estg.eu/en-gb/20-0100/mypv-ac-thor) - **my-PV HEA•THOR IoT 9 kW Intelligent Heating Element** — [Art.No.: 21-0900](https://www.estg.eu/en-gb/21-0900/mypv-heathor-iot-9-kw-intelligent-heating-element) - **My-PV WiFi Meter / Wi-Fi Energy Meter incl. 3x clamps 75A** — [Art.No.: 20-0107](https://www.estg.eu/en-gb/20-0107/my-pv-wifi-meter-wi-fi-energy-meter-incl-3x-clamps-75a) - **My-PV Immersion heater 3kW** — [Art.No.: 20-0500](https://www.estg.eu/en-gb/20-0500/mypv-immersion-heater-3kw) - **my-PV HEA•THOR IoT 3.5 kW Intelligent Heating Element** — [Art.No.: 21-0300](https://www.estg.eu/en-gb/21-0300/mypv-heathor-iot-35-kw-intelligent-heating-element) - **My-PV Digital Meter P1 Interface for AC•THOR/AC•THOR9s** — [Art.No.: 20-0106](https://www.estg.eu/en-gb/20-0106/mypv-digital-meter-p1-interface-for-ac-thor-ac-thor9s) - **My-PV SOL•THOR Power Manager 3.6 kW** — [Art.No.: 14-0100](https://www.estg.eu/en-gb/14-0100/my-pv-solthor-power-manager-36-kw) - **My-PV Immersion heater 9kW** — [Art.No.: 20-0600](https://www.estg.eu/en-gb/20-0600/mypv-immersion-heater-9kw) - **My-PV Temperature Sensor AC THOR (5m)** — [Art.No.: 20-0151](https://www.estg.eu/en-gb/20-0151/mypv-temperature-sensor-ac-thor) - **My-PV Immersion heater 1,5" - 230V - 3 kW / WITHOUT THERMOSTAT** — [Art.No.: 20-0550](https://www.estg.eu/en-gb/20-0550/mypv-immersion-heater-1-5-230v-3-kw-without-thermostat) - **My-PV Immersion heater 1,5" - 3x230V - 9 kW / WITHOUT THERMOSTAT** — [Art.No.: 20-0650](https://www.estg.eu/en-gb/20-0650/mypv-immersion-heater-1-5-3x230v-9-kw-without-thermostat) - **My-PV ELWA Modbus Interface for ELWA** — [Art.No.: 12-0111](https://www.estg.eu/en-gb/12-0111/my-pv-elwa-modbus-interface-for-elwa) - **My-PV USB Interface for all ELWA / AC ELWA / PLA Units** — [Art.No.: 12-0110](https://www.estg.eu/en-gb/12-0110/my-pv-usb-interface-for-all-elwa-ac-elwa-pla-units) - **My-PV Clamps for power meter 600A** — [Art.No.: 20-0105](https://www.estg.eu/en-gb/20-0105/mypv-clamps-for-power-meter-600a) - **My-PV Clamps for power meter 400A** — [Art.No.: 20-0104](https://www.estg.eu/en-gb/20-0104/mypv-clamps-for-power-meter-400a) - **My-PV Clamps for power meter 200A** — [Art.No.: 70-0111](https://www.estg.eu/en-gb/70-0111/mypv-clamps-for-power-meter-200a) - **My-PV Clamps for power meter 100A** — [Art.No.: 70-0110](https://www.estg.eu/en-gb/70-0110/mypv-clamps-for-power-meter-100a) ## FAQ - **How exactly does the link between solar power and heat work?** my-PV systems measure excess solar energy at the grid connection point. Instead of feeding this power back, it is sent variably (linearly) to an electric heating element. Energy is thus stored as heat. - **Is thermal storage a replacement for a home battery?** It is primarily a powerful addition. While a battery stores power for appliances, a water buffer acts as a "thermal battery" with often greater capacity at a lower cost per kWh. - **Are my-PV systems compatible with my current inverter brand?** Yes, my-PV is known for high compatibility. It works with almost all major Tier 1 inverter brands and various energy management systems. - **What is the benefit for my customer?** Direct reduction in energy costs, a better energy efficiency rating, and maximum independence from the grid and fluctuating energy prices. - **What is the advantage of my-PV's infinitely variable control?** It ensures that exactly the amount of energy that would otherwise flow to the grid is converted into heat, optimizing self-consumption toward 100%.