Free power from the Sun! My Tasmania project is completely 100% off grid
|MPPT (charge controller, inverter and circuit breakers all in one|
|Thin film panels, less effective in full sun but perform better on cloudy days than poly or mono panels|
Grid feed systems were a viable option when the feed in tariff was high but is it the best choice now?
More and more people are looking at batteries as a way to use their stored solar power at night because of rising electricity prices and grid blackouts.
For my Earthship project in Tasmania I opted for a battery bank because I didn't want to be dependent on the grid.
|left: my 24 volt system batteries, nickel iron, the most durable and long lasting batteries money can buy|
I put the batteries in an insulated box on the roof with the panels so that lees cabling was needed and any hydrogen off gassing wouldn't go into the building.
|insulated battery box made from upcycled coolroom panels with a solar extractor fan and vents to keep the batteries cool.|