Operations and maintenance costs, O&M, are one of the major concerns of those who own and operate wind-turbine energy projects, along with wind speed and duration. The chart below from US Dept of Energy shows actual O&M costs for dozens of wind projects, by year of initial operation. (Source: US DOE 2014 Wind Technologies Market Report, Riser and Bolinger)
|O&M Trend Line and Typical Revenue -- added by Sowell|
However, for projects that signed PPAs with higher values, such as the period from 2005 through 2010 where 45 to 51 $/MWh were typical, the projects will likely operate profitably up to and perhaps beyond the 20 year mark.
There is typically much moaning and hand-wringing by the anti-wind crowd because they complain that wind-turbines are not turning whenever they happen to drive by. One must ask if the wind-turbines in question are older than 20 years; if so, they are likely not turning because the costs to repair and operate exceed the project revenue.
Roger E. Sowell, Esq.
Marina del Rey, California
copyrignt © 2016 by Roger Sowell, all rights reserved