The final answer in the second picture , I need the steps please

A rural utility company provides standby power to pumping stations using diesel- powered generators. An alternative has arisen whereby the utility could use ural gas to power the generators, but it will be a few years before the gas available at remote sites. The utility estimates that by switching to gas, it will save $15,000 per year, starting 2 years from now. At an interest rate of 8% per year, determine the equivalent annual worth (years I through 10) of the projected savings