Quote of the week:

If you think education is expensive, try ignorance.

What is Pi²R?

Reuse existing element & thermostat

The Pi²R is an innovative new technology that feeds your existing electrical geyser with two power sources ie. AC grid power and DC PV power. No need for backup batteries, the PV is directly fed into the geyser when available and essentially stored inside the geyser as heat energy.
The Pi²R does not feed your AC Element with DC power. DC is converted to a modified wave which is safe to use in the existing element and thermostat. This modified wave form enables the thermostat to switch power on and off as if it were normal AC power.

There is no need to replace the element or thermostat having the following benfits:

What options are available?

SANS Compliant

Firstly there is the cheaper, lower spec Micro model. Then there is the more expensive full spec iX with optional Display. Lastly the optional Display enables internet and APP connectivity to the iX.

Different Pi²R models use the thermostat differently.

The Micro uses the thermostat to control water temperature.

The iX measures the water temperature separately and uses the thermostat as a electrical connection and safety cut-off.
When the iX is used without the Display module, it functions precisely the same as the Micro except that it is a full-power module.

The Display module communicates with the iX to show the temperature and some parameters on a 3.5” touch LCD. The display can also connect to a Wi-Fi hotspot to enable remote monitoring and setup via the APP.

MPPT

Efficcient MPPT

All our models have MPPT [Wiki]. MPPT enables the Pi²R to extract power more efficiently out of the PV panels by adapting the intake power to the current weather conditions.

Advantages

Advantages above traditional solar geysers:

Disadvantages to traditional solar geysers:

What We Offer

Hardware

Micro

iX

External Display

Installation

Please contact your nearest installer for details.

SANS10400

When required, installers can quote on SANS10400 compliant systems.

After sales service

All products have a one year warranty. If we can`t repair it we will replace it.

Our Products

Choose a product that fits your needs.

  • Pi²R Micro
  • 90-200 Vdc PV Power
  • 200-240 Vac Grid Power
  • 2-3kW Element size
  • 50-150 Liter Geyser
  • Simplistic yet delivers great power savings.
    Our first module with integrated MPPT.

  • Pi²R iX
  • 90-350 Vdc PV Power
  • 200-240 Vac Grid Power
  • 2-4kW Element size
  • 50-300 Liter Geyser
  • Highest spec of all Geyser Robot modules. Network BUS connection to interface with Pi²R Home System.

  • Pi²R Display
  • IoT connected via WiFi
  • 6x Onboard sensor channels
  • 16MB Onboard FLASH storage
  • Integrated Li-Ion battery
  • A stand-alone logger and IoT gateway for the Pi²R Home System. Online data monitoring.
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