IAMMETER Invites You to Join Our Smart Control Project

Use Surplus Solar Energy to Power Heat Pumps – Join IAMMETER in Building Smarter Solar Self-Consumption Systems Project Background and Objective: Smart Heat Pump Control Based on Surplus Solar Power IAMMETER’s Experience in Surplus Solar Utilization Solar PV Heater Control System Controlling EV Charging Based on Surplus PV Open Platform Integration Who We Are Looking For What IAMMETER Offers Join Us in Exploring Smarter Solar Energy Scenarios About IAMMETER Solutions Products System

Use Surplus Solar Energy to Power Heat Pumps – Join IAMMETER in Building Smarter Solar Self-Consumption Systems

With solar power becoming increasingly common in residential and commercial scenarios, more users are focusing on how to maximize the use of surplus solar energy, increase self-consumption, and reduce electricity costs.

To help users make the most of every kilowatt-hour of sunshine, IAMMETER is launching a new initiative and warmly invites you to participate.

Project Background and Objective: Smart Heat Pump Control Based on Surplus Solar Power

The core idea of this project is to:

Monitor solar generation and energy consumption in real time via IAMMETER smart meters
Accurately calculate surplus PV power
Control the operation of heat pumps accordingly, including:
- Dynamically adjusting output power (for models supporting modbus, 0~10V, or PWM)
- Or switching the device on/off via relay control

The goals are:

Prioritize using solar energy to drive heat pumps
Align heat pump loads with solar generation curves
Significantly improve the solar self-consumption rate
Achieve long-term electricity cost savings

IAMMETER’s Experience in Surplus Solar Utilization

IAMMETER has been dedicated to intelligent energy monitoring for solar systems and has developed various practical applications for surplus solar power.

Solar PV Heater Control System

By monitoring surplus PV power, the system can intelligently control electric water heaters using power modulation or stage heating. The heater runs only when there is sufficient surplus solar energy, effectively improving the utilization of solar power. More details: https://www.iammeter.com/docs/pv-heater-control

Please note: The power control device used in this solution is the WPC3700, which is designed to control resistive load heaters and cannot be used to control heat pump systems.

Controlling EV Charging Based on Surplus PV

By integrating PV monitoring data into the EV charger, the system ensures charging happens only when surplus solar power is available, avoiding costly grid power consumption during peak hours.
Example guide: https://www.iammeter.com/docs/ev-charger-control

Open Platform Integration

IAMMETER provides open APIs and multiple platform integrations, supporting:

MQTT data push
RESTful API
Integration with platforms like Node-RED, Home Assistant, and more

Who We Are Looking For

We are seeking partners who meet one or more of the following criteria:

Own a heat pump system that supports power modulation or relay on/off control ,such as IDM or Vaillant
Are interested in exploring real-world applications of surplus solar control
Have basic technical knowledge or integration capability in smart energy systems

If that sounds like you, we welcome you to join this collaborative project.

What IAMMETER Offers

One IAMMETER smart meter (Wi-Fi enabled, cloud connected)
Ready-to-use control logic templates and demo flows (Node-RED / Home Assistant supported)
Technical support
Opportunity to have your solution showcased on the IAMMETER website

Join Us in Exploring Smarter Solar Energy Scenarios

IAMMETER is committed to building open and intelligent energy management systems. We believe controlling heat pumps with surplus solar energy is a key step toward maximizing solar system ROI.

If you're a user, integrator, or energy solution provider with interest in this project, feel free to contact us. Let’s discover more intelligent and efficient ways to utilize solar power together.

Contact: support@iammeter.com