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title: "Smart energy management and maximum self-consumption with my-PV"
description: "Maximize self-consumption with my-PV power controllers. Convert surplus solar energy directly into thermal storage without complex battery systems."
type: information-resource

---

# ESTG

![MyPV dedicated](https://a.storyblok.com/f/288569/2000x2000/d4c4d3e63a/mypv-dedicated.png)

As grid congestion increases and feed-in compensation across Europe continues to decline, optimizing on-site energy consumption is critical. While **[battery storage systems](/assortment/storage/batteries/)** handle electrical energy, **[thermal energy storage](/assortment/heat-cool/thermal)** presents an equally valuable and cost-effective opportunity. Heating water and space heating account for a major portion of total energy demand in both residential and commercial buildings.

**[my-PV](/brands/my-pv/)** offers intelligent power controllers that convert surplus solar energy directly into thermal storage. By seamlessly integrating with existing PV **[inverters](/assortment/solar/inverters/)**, **[energy storage](/assortment/storage/)**, and **[smart meters](/assortment/accessories/electrical-components)**, my-PV maximizes self-consumption without relying solely on chemical battery storage.

## Why is my-PV essential for integrated energy management?

my-PV power controllers continuously adjust energy output to electric heating elements and boilers based on real-time solar surplus data. By converting excess PV power into thermal energy, my-PV increases self-consumption rates, reduces grid feed-in, and eliminates the need for expensive structural plumbing or hydraulic system retrofits.



## Technical core components of the my-PV portfolio

The my-PV system seamlessly integrates into both new and retrofitted PV setups:

- **[AC•THOR](https://www.estg.eu/en-gb/p/20-0100)** **&** **[AC•THOR 9s](https://www.estg.eu/en-gb/p/20-0300)****:** Stepless power controllers (1-phase up to 3 kW and 3-phase up to 9 kW) that automatically adjust power supply to electric heating elements, boilers, and underfloor heating based on excess PV generation.
- **[ELWA (Electric Hot Water Preparation)](https://www.estg.eu/en-gb/p/12-0100)****:** A direct DC/AC hot-water preparation device designed for straightforward installation into domestic hot water boilers, optimizing self-consumption with zero grid feed-in waste.
- **[my-PV Power Meter](https://www.estg.eu/en-gb/brands/my-pv)****:** Measures real-time energy flows at the grid connection point, transmitting accurate load data to the AC•THOR or ELWA units to ensure precise power regulation down to the watt.

## Commercial and operational advantages of thermal energy storage

Integrating my-PV into PV and energy management setups provides distinct operational benefits:

- **Lower investment cost per kWh stored:** Thermal energy storage using water heating elements offers a significantly lower cost-per-kWh capacity compared to chemical battery storage alone.
- **Seamless system compatibility:** my-PV hardware communicates natively with leading inverter brands, battery storage systems, and **Home Energy Management Systems (HEMS)**.
- **Simplified retrofitting:** Electrical heating controllers require no complex piping, pumps, or hydraulic changes, making installation fast and reliable.
- **Increased system ROI:** Diverting excess solar power to thermal storage prevents loss from feed-in caps and grid curtailment, boosting overall system efficiency.

## Order my-PV power controllers directly at ESTG

ESTG supplies the complete my-PV product lineup, including power controllers, heating elements, and power meters for European distribution.

View current stock levels, technical datasheets, and B2B volume pricing directly in **your personal account**. For technical questions or order support, please **[contact us directly](/about-estg/contact)**.

## Frequently asked questions (FAQ)

- **Can my-PV systems operate alongside existing battery storage?**Yes. my-PV controllers integrate with battery storage systems and HEMS. The system can be configured to prioritize charging the battery first, diverting remaining surplus power to thermal water heating once the battery reaches full capacity.
- **How does my-PV measure available surplus power?**The my-PV Power Meter monitors real-time energy flow at the main grid connection point. When it detects electricity being exported to the grid, it signals the AC•THOR controller to modulate power output to the heating element instantly.
- **Do my-PV controllers require specific inverter brands?**No. my-PV solutions are brand-independent and compatible with major inverter, battery, and smart meter manufacturers across the solar industry.


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