Solar City said it has created a photovoltaic panel capable of 22% efficiency, 7 percentage points higher than average solar panels.

The new panels produce 30% to 40% more power over the current models, but they cost the same to manufacture — about .55 cents per watt, according to Bass. The panels, which are 1.61 meters or 1.81 meters in size, depending on the model, will have a capacity of 355 watts each.

Source: SolarCity claims it has created the world’s most powerful solar panel