diff --git a/wetb/prepost/Simulations.py b/wetb/prepost/Simulations.py
index 57b9c8479352c1adbe490724c3aaec0cc4248619..b7aae58b34767b868c18fe329befd9b0e7ad2e43 100755
--- a/wetb/prepost/Simulations.py
+++ b/wetb/prepost/Simulations.py
@@ -567,7 +567,7 @@ def prepare_launch(iter_dict, opt_tags, master, variable_tag_func,
                 update_model_data=True, maxcpu=1, pyenv='wetb_py3',
                 m=[3,4,6,8,9,10,12], postpro_node_zipchunks=True,
                 postpro_node=False, exesingle=None, exechunks=None,
-                wine_arch='win32', wine_prefix='~/.wine32',
+                wine_arch='win32', wine_prefix='~/.wine32', prelude='',
                 pyenv_cmd='source /home/python/miniconda3/bin/activate'):
     """
     Create the htc files, pbs scripts and replace the tags in master file
@@ -809,7 +809,7 @@ def prepare_launch(iter_dict, opt_tags, master, variable_tag_func,
            windows_nr_cpus=windows_nr_cpus, short_job_names=short_job_names,
            pbs_fname_appendix=pbs_fname_appendix, silent=silent, maxcpu=maxcpu,
            pyenv=pyenv, m=[3,4,6,8,9,10,12],
-           postpro_node_zipchunks=postpro_node_zipchunks,
+           postpro_node_zipchunks=postpro_node_zipchunks, prelude=prelude,
            postpro_node=postpro_node, exesingle=exesingle, exechunks=exechunks,
            wine_arch=wine_arch, wine_prefix=wine_prefix, pyenv_cmd=pyenv_cmd)
 
@@ -818,7 +818,7 @@ def prepare_launch(iter_dict, opt_tags, master, variable_tag_func,
 def launch(cases, runmethod='none', verbose=False, copyback_turb=True,
            silent=False, check_log=True, windows_nr_cpus=2, qsub='time',
            pbs_fname_appendix=True, short_job_names=True,
-           maxcpu=1, pyenv='wetb_py3', m=[3,4,6,8,9,10,12],
+           maxcpu=1, pyenv='wetb_py3', m=[3,4,6,8,9,10,12], prelude='',
            postpro_node_zipchunks=True, postpro_node=False, exesingle=None,
            exechunks=None, wine_arch='win32', wine_prefix='~/.wine32',
            pyenv_cmd='source /home/python/miniconda3/bin/activate'):
@@ -862,7 +862,7 @@ def launch(cases, runmethod='none', verbose=False, copyback_turb=True,
         # create the pbs object
         pbs = PBS(cases, short_job_names=short_job_names, pyenv=pyenv,
                   pbs_fname_appendix=pbs_fname_appendix, qsub=qsub,
-                  verbose=verbose, silent=silent,
+                  verbose=verbose, silent=silent, prelude=prelude,
                   m=m, postpro_node_zipchunks=postpro_node_zipchunks,
                   postpro_node=postpro_node, exesingle=exesingle,
                   exechunks=exechunks, wine_arch=wine_arch,
@@ -1754,7 +1754,7 @@ class PBS(object):
 
     def __init__(self, cases, qsub='time', silent=False, pyenv='wetb_py3',
                  pbs_fname_appendix=True, short_job_names=True, verbose=False,
-                 m=[3,4,6,8,9,10,12], exesingle=None,
+                 m=[3,4,6,8,9,10,12], exesingle=None, prelude='',
                  postpro_node_zipchunks=True, postpro_node=False,
                  exechunks=None, wine_arch='win32', wine_prefix='~/.wine32'):
         """
@@ -1791,6 +1791,8 @@ class PBS(object):
         self.pyenv_cmd = 'source /home/python/miniconda3/bin/activate'
         self.postpro_node_zipchunks = postpro_node_zipchunks
         self.postpro_node = postpro_node
+        # Prelude is executed just before HAWC2 is
+        self.prelude = prelude
 
         self.m = m
 
@@ -2172,6 +2174,7 @@ class PBS(object):
                                             fname_log=fname_log,
                                             fname_pbs_out=fname_pbs_out,
                                             winenumactl=self.winenumactl)
+            self.pbs += self.prelude
             self.pbs += "  %s &\n" % execstr
             # # OLD METHOD
             # param = (self.wine, hawc2_exe, self.htc_dir+case)
diff --git a/wetb/prepost/dlctemplate.py b/wetb/prepost/dlctemplate.py
index 99a127615133eb187f11f4add2f91538cdaec1f9..6602cd3d5270f09fe1735499837b756afb8d48aa 100644
--- a/wetb/prepost/dlctemplate.py
+++ b/wetb/prepost/dlctemplate.py
@@ -268,7 +268,7 @@ def launch_dlcs_excel(sim_id, silent=False, verbose=False, pbs_turb=False,
                       walltime='04:00:00', postpro_node=False, compress=False,
                       dlcs_dir='htc/DLCs', postpro_node_zipchunks=True,
                       wine_arch='win32', wine_prefix='~/.wine32',
-                      m=[3,4,6,8,9,10,12], module='', linux=False):
+                      m=[3,4,6,8,9,10,12], prelude='', linux=False):
     """
     Launch load cases defined in Excel files
     """
@@ -286,7 +286,7 @@ def launch_dlcs_excel(sim_id, silent=False, verbose=False, pbs_turb=False,
     if linux:
         wine_arch = None
         wine_prefix = None
-        module = 'module load mpi/openmpi_1.6.5_intelv14.0.0\n'
+        prelude = 'module load mpi/openmpi_1.6.5_intelv14.0.0\n'
 
     # if linux:
     #     pyenv = 'wetb_py3'
@@ -374,7 +374,7 @@ def launch_dlcs_excel(sim_id, silent=False, verbose=False, pbs_turb=False,
                               ppn=20, nr_procs_series=3, walltime='20:00:00',
                               chunks_dir='zip-chunks-jess', compress=compress,
                               wine_arch=wine_arch, wine_prefix=wine_prefix,
-                              prelude=module)
+                              prelude=prelude)
 #        create_chunks_htc_pbs(cases, sort_by_values=sorts_on, queue='workq',
 #                              ppn=12, nr_procs_series=3, walltime='20:00:00',
 #                              chunks_dir='zip-chunks-gorm', compress=compress,
@@ -430,6 +430,7 @@ def post_launch(sim_id, statistics=True, rem_failed=True, check_logs=True,
 #        add_sigs = {name:expr}
 
         # in addition, sim_id and case_id are always added by default
+        # FIXME: HAS TO BE THE SAME AS required IN postpro_node_merge
         tags = ['[Case folder]', '[run_dir]', '[res_dir]', '[DLC]',
                 '[wsp]', '[Windspeed]', '[wdir]']
         add = None
@@ -452,8 +453,23 @@ def post_launch(sim_id, statistics=True, rem_failed=True, check_logs=True,
         # load the statistics in case they are missing
         if not statistics:
             df_stats, Leq_df, AEP_df = cc.load_stats()
+
+        # CAUTION: depending on the type output, electrical power can be two
+        # different things with the DTU Wind Energy Controller.
+        # Either manually set ch_powe to the correct value or use simple
+        # mechanism to figure out which one of two expected values it is.
+        if 'DLL-2-inpvec-2' in df_stats['channel'].unique():
+            ch_powe = 'DLL-2-inpvec-2'
+        elif 'DLL-dtu_we_controller-inpvec-2' in df_stats['channel'].unique():
+            ch_powe = 'DLL-dtu_we_controller-inpvec-2'
+        else:
+            if ch_powe not in df_stats['channel'].unique():
+                msg = 'The defined channel for the electrical power does not '
+                msg =+ 'exist: %s' % ch_powe
+                raise UserWarning(msg)
+
         df_AEP = cc.AEP(df_stats, csv=csv, update=update, save=True,
-                        ch_powe='DLL-2-inpvec-2')
+                        ch_powe=ch_powe)
 
     if envelopeblade:
         ch_list = []
@@ -571,6 +587,7 @@ def postpro_node_merge(tqdm=False, zipchunks=False, m=[3,4,6,8,9,10,12]):
     store.close()
     # -------------------------------------------------------------------------
     # merge missing cols onto stats
+    # FIXME: HAS TO BE THE SAME AS tags IN post_launch
     required = ['[DLC]', '[run_dir]', '[wdir]', '[Windspeed]', '[res_dir]',
                 '[case_id]', '[Case folder]']
     df = pd.read_hdf(fdf, 'table')
@@ -715,7 +732,7 @@ if __name__ == '__main__':
                         'Directory used by wineserver. Default ~/.wine32')
     parser.add_argument('--linux', action='store_true', default=False,
                         dest='linux', help='Do not use wine. Implies that '
-                        'wine_prefix and wine_arch to None.')
+                        'wine_prefix and wine_arch is set to None.')
     opt = parser.parse_args()
 
     # Wholer coefficients to be considered for the fatigue analysis