The maximum energy that could be tapped from Ghana's available wind resource for electricity is estimated to be about 500–600 GWh/year.[39] To give perspective: in 2011, per the same Energy Commission, the largest Akosombo hydroelectric dam in Ghana alone produced 6,495 GWh of electric power and, counting all Ghana's geothermal energy production in addition, the total energy generated was 11,200 GWh in that year.[39] These assessments do not take into consideration further limiting factors such as land-use restrictions, the existing grid (or how far the wind resource may be from the grid) and accessibility.[39]