diff --git a/rowers/tasks.py b/rowers/tasks.py
index afa33a11..f37fe6ab 100644
--- a/rowers/tasks.py
+++ b/rowers/tasks.py
@@ -197,6 +197,9 @@ def handle_makeplot(f1,f2,t,hrdata,plotnr,imagename):
         row = rdata(f2,rower=rr)
     except IOError:
         row = rdata(f2+'.gz',rower=rr)
+
+
+    haspower = row.df[' Power (watts)'].mean() > 50
         
     nr_rows = len(row.df)
     if (plotnr in [1,2,4,5,8,11,9,12]) and (nr_rows > 1200):
@@ -211,9 +214,15 @@ def handle_makeplot(f1,f2,t,hrdata,plotnr,imagename):
     elif (plotnr==3):
 	fig1 = row.get_piechart(t)
     elif (plotnr==4):
-	fig1 = row.get_timeplot_otw(t)
+        if haspower:
+            fig1 = row.get_timeplot_otwempower(t)
+        else:
+	    fig1 = row.get_timeplot_otw(t)
     elif (plotnr==5):
-	fig1 = row.get_metersplot_otw(t)
+        if haspower:
+            fig1 = row.get_metersplot_otwempower(t)
+        else:
+	    fig1 = row.get_metersplot_otw(t)
     elif (plotnr==6):
 	fig1 = row.get_piechart(t)
     elif (plotnr==7) or (plotnr==10):