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Meet the SunHopper™-D

SunHopper-D Features Image

Hot Water Efficiently

Easy Installation

Wireless Monitoring


A new solar hot water system. Coming soon, the SunHopper-D generates domestic hot water using a dedicated PV array. This creates a very reliable, low cost system to help reduce energy consumption by offsetting energy use from a backup energy source to PV.

Energy Calculator

Learn how much energy savings the SunHopper-D™ is capable of! Click the calculator icon to navigate to our easy to use energy savings calculator and judge your own potential energy savings by adding solar to your hot water system.

Energy Savings

The average American single family home uses 17% of its total energy consumption for water heating. This is the second largest energy consumption in the home1. The SunHopper™-D helps reduce energy consumption for hot water by 50% to 75% through the use of a dedicated PV array.

The SunHopper™-D Advantage

Our patent pending algorithm brings smarts to your water heater. The SunHopper™ reviews weather data, installation parameters, previous energy generation, energy rates, and usage patterns to minimize energy costs while delivering hot water to the home.

Whatever the weather brings, the SunHopper™ will ensure hot water is present at the lowest cost possible.

Hot Water Efficiently

PV solar energy offsets the energy required from traditional sources, be it a fossil fuel source or electricity from the grid. With the SunHopper™-D learning algorithm you can rest assured the available solar power is used to its full potential. Minimizing energy consumption from backup sources is at the core of the system.

If there is a power outage, the SunHopper-D still supplies PV energy to the hot water tank.

Works with Existing Immersion Water Heaters

Works with existing one or 2 element electric immersion water heaters. Does not require a special solar hot water tank.

Wire either 1 or 2 heater elements to the SunHopper™-D to start generating hot water from solar PV panels. Supports between 1kW elements and 5.5kW elements.

Wireless Connectivity

With an internal WiFi and Bluetooth connection, the device can be easily setup and monitored after installation. Remote operation is also provided to allow vacation mode operation for improved energy savings when away.

Connectivity is required for the SunHopper™-D algorithm but can be disabled on the device for off-grid cases.

User Configurable

Grid connected, preheating for a secondary fossil-fuel heater, or off-grid. Many installation possibilities are supported and are easily programmed into the device with a simple to use interface.

Installation Ease

No plumbing, pumps, glycol, or sensors are required with the SunHopper™-D system. Our patent pending solution brings peace of mind as the system is not susceptible to overheating or water leaks from heat transfer fluids.

No grid interconnection hassles, or limitations- the SunHopper™-D never exports energy to the grid and is sized only for water heating. No more waiting for permits from the utility to install solar.


  • Solar Input
    Voltage Range: 75V-350V
    Supported Array: 4-6 panel, 60/72 cell series
    Maximum Input Current: 10A
  • Power Output
    PV: up to 1.5kW
    AC: up to 5.5kW at 240VAC
  • Connectivity
    Bluetooth 5
    WiFi 2.4GHz
  • Safety
    Built-in arc-fault
    Built-in RCD
    Built-in Ground Impedance detection
  • Multi-Function Relay
    Configurable: Fault output, Fossil fuel control signal

  • Grid Input
    Voltage Range: 120V-240VAC
    Maximum Input Current: 23A

  • Environment
    Temperature Range: -4°F - 120°F (-20°C - 50°C)
    Indoor Use Only: Conditioned or unconditioned
  • Supported Heaters
    500W to 5.5kW Immersion Elements
    7Ω - 120Ω
  • Certifications
    Coming Soon-not yet certified

Check back for Updates

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1 U.S. Energy Information Administration. Use of energy explained. June 23, 2021.