https://www.altestore.com/store/solar-power-systems/off-grid-home-solar-power-system/off-grid-4kw-residential-solar-power-system-p40464/
People often think that they can save money by cutting the cord and disconnecting from the electric grid. Off-grid solar will only save you money if connecting to the grid is too expensive to begin with. If you are already connected tot he grid, the best way to save money is to use less power, install a grid tie solar system, and buy less power from the grid.
Post time: Jan-04-2017