Including Tesla Powerwall, SolarEdge Home Battery etc.
Some battery storage systems only deliver 800w (watts) of power. No good if you want a cup of tea (your kettle needs 2000 watts). Likewise, if you''re generating 4kW but the battery can only take on 3kW then 1kW will be heading to the grid, wasting your precious free energy. So it''s essential that you check the power output before you buy, otherwise you may find yourself …