Comparison of Weibull parameters computation methods and analytical estimation of wind turbine capacity factor using polynomial power curve model: case study of a wind farm

Sustainable Energy Research

Table 2 Comparison of RMSE of wind speed probability

Months	Monthly RMSE (graphical)	Monthly RMSE (empirical)	Monthly RMSE (MML)	Monthly RMSE (EPF)
Apr 2011	0.0461	0.0443	0.0437	0.0445
May 2011	0.0352	0.0399	0.0397	0.0377
Jun 2011	0.0329	0.0354	0.0357	0.0350
Jul 2011	0.0366	0.0387	0.0382	0.0381
Aug 2011	0.0529	0.0502	0.0501	0.0507
Sep 2011	0.0509	0.0530	0.0531	0.0517
Oct 2011	0.0557	0.0521	0.0511	0.0527
Nov 2011	0.0787	0.0737	0.0722	0.0751
Dec 2011	0.0635	0.0602	0.0593	0.0611
Jan 2012	0.0617	0.0583	0.0576	0.0590
Feb 2012	0.0530	0.0516	0.0510	0.0518
Mar 2012	0.0416	0.0402	0.0398	0.0401
Average RMSE	0.05073	0.04980	0.04929	0.04979