The consumption rate of electricity, in kW/h has increased, on average, at 5.8% per year. If it continues to increase at this rate indefinitely, find the number of years before the electric companies will need to double their generating capacity. The electric company will need to double their generating capacity about every (Do not round until the final answer. Then round to the nearest tenth as needed.) years.

The consumption rate of electricity, in kW/h has increased, on average, at 5.8% per year. If it continues to increase at this rate indefinitely, find the number of years before the electric companies will need to double their generating capacity. The electric company will need to double their generating capacity about every years. (Do not round until the final answer. Then round to the nearest tenth as needed.)