For what value of "interest", benefit/cost is approximatelely equal to 1.

Data given below:

• Capacity: 1000MW
• Generation: 1300 GWh/Year
• Number of years: n = 50
• Operations and Maintenance = 2.5% of capital costs per year

Capital Cost: 4350$/kw installed capacity

Energy Price:34.26Cent/kwh generation

Thank you!