A fully automated and integrated plug and play off-grid solar system with a built-in inverter, battery, charge controller, solar panel (or other 12 volt) input, and an automatic transfer switch.
This is a plug and play solar system concept that I built to demonstrate and test the viability of highly-integrated solar systems for the sake of reducing solar system installation costs, solar system moving costs, and expansion costs.
This concept is something you can just buy at a hardware store and plug in (solar panel installation would be separate, of course). This works by simply connecting a solar panel’s negative and positive wires to the two solar input terminals on the side, you flip a switch, and it just works.
If the battery is low due to cloudy weather or high energy usage, it will automatically switch your appliances over to the power grid until the solar panel has recharged the battery.
It has been working perfectly so far. I encourage you to build your own and see the benefits that a self-contained solar system can provide.
Parts:
- 12 volt, 12 Ah SLA battery (UPS battery).
- 400 Watt 120 Volt inverter (12 volt automotive inverter).
- 10 Amp 12 Volt solar charge controller.
- EFM8UB1, 8051-based microcontroller development kit.
- 8-pin Relay: 250 Volts contact voltage, up to 10 amps.
- TIP122 Transistor.
- Texas Instruments LM7805 I.T 5 Volt voltage regulator.
- Bar connectors.
- Pin plugs/jumper wires for the MCU and transistor pins.
- 120 Volt, 15 Amp power receptacle.
Post time: Feb-04-2017