Clean energy got just a whole lot easier! UNplug is a small microcontroller that switches between solar, battery and electric power so you can take essential items (i.e. fridge, computer, internet modem, TV etc.) off the grid. Unlike larger solar panel systems whose start up costs can be incredibly high, UNplug gives you the freedom to build out a cost effective, fully scalable solar solution from the ground up.
Getting started couldn’t be simpler:
Just choose the peripherals you need (power inverter, batteries, solar charge converter and solar panels), then plug UNplug into any wall outlet and GO! UNplug provides automatic uninterruptible power, integrates with the internet of things via IFTTT and lets you monitor energy usage wirelessly via our app on your smartphone.
UNplug your appliance
Taking an appliance of the grid has never been easier: UNplug is most likely assembled in an enclosure holding the other peripherals (batteries, etc) and is connected to the wall plug and solar panel. The output provides uninterrupted power to any appliance.
- Low-cost solar micro grid solution
- Scalable Uninterruptible Power Supply (UPS)
with Surge protection
- Automatic transfer switch (ATS) between
solar and grid
- Works with any inverter and charge controller combination
- Modular design can adapt to growing power demand
UNplugs eco-algorithm is doing automatic transfer switching between the solar powered inverter, batteries and main utility power to maximize solar energy usage and battery life.
Full monitoring of the solar system
- DC Monitoring of Voltage and Current
- Battery charge (SOC) and temperature
- Black-out detect
- Predicted runtime for battery
- Peak solar and output power
- $ and CO2 savings
- Lifetime kWh counter, total runtime
- Detailed graphical reporting
A complete UNplug system requires solar panels, a power inverter, a charge controller, and batteries. All settings can be configured via USB or WiFi. The settings include parameters defining:: maximum discharge levels for the batteries, nightly shutdown timer, maximum current limiter, total battery capacity, LVD and LVR voltages.
The controller is doing transfer switching between the solar powered inverter and main utility power to optimize battery life and maximize solar energy usage. It is also monitoring phase shift between utility power and inverter and only switches in phase-sync to protect your equipment. The controller is also offering a standby UPS mode to provide surge protection and battery backup around the clock. Here is a link to a list of supported countries.
The run-time for the battery-operated UPS mode depends on the type and size of batteries and rate of discharge, and the efficiency of the inverter. A wide variety of inverters and battery sizes can be combined. You can setup a minimal system with 12V, 10AH and go up to 24V, 50000AH using common lead-acid batteries. The controller has a simple setup mode where levels for different kinds of battery types can be adjusted.
UNplug is essentially an Automatic Transfer Switch (ATS) that switches a load between two sources. It automatically switches when it senses one of the sources has lost power.
The type is called open transition transfer switch. It is a break before make transfer switch which breaks contact with one source of power before it makes contact with another. It prevents back-feeding from an inverter/generator back into the utility line.
The ATS will automatically tell the inverter to start. Once the ATS sees that the inverter is ready to provide electric power, the ATS breaks the home’s connection to the utility grid and connects the inverter. The inverter supplies power to the electric load, but is not connected to the electric utility lines.