Arduino based solar power controller to take home appliances off grid

Where’s the middle ground between having a small solar charger for your gadgets, and having a rooftop solar array capable of powering your entire house? The UNplug might know.

Source: www.treehugger.com

>” […] The UNplug solar controller was invented by Markus Löffler in response to his own power blackout experience, where several days without electricity meant a lot of spoiled food. Löffler, an entrepreneur and software engineer living in Altadena, California, developed the UNplug device to serve as a simple and inexpensive way to begin going solar, because it serves as the brain of a micro-solar system, starting as small as a single solar panel and a small battery bank. […]

During the day, UNplug feeds electricity from the solar panel into the appliances connected to it, and charges the battery bank, and then when the sun goes down, it seamlessly switches over those devices to using grid power. In the event of a blackout, UNplug then powers those same appliances from the battery bank, allowing certain crucial electricity needs to continue to be met during an outage.

The UNplug could allow homes to take at least some of their daily electrical loads off the grid, such as the fridge or other household devices, while also serving as an uninterruptible power supply (UPS) in the event of a power outage. The device doesn’t function all by itself, of course, and requires solar panels, batteries, an inverter, and other accessories, but according to Löffler’s campaign page, a small system could be set up for an additional $570 or so, on top of the cost of the UNplug, so the entire investment could be under $1000. (His shopping list is here.) […]”<

See on Scoop.itGreen Energy Technologies & Development

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