diff --git a/alembic/versions/5056573aea0d_add_description_column_to_mlmodelsql.py b/alembic/versions/5056573aea0d_add_description_column_to_mlmodelsql.py
new file mode 100644
index 0000000..1d70926
--- /dev/null
+++ b/alembic/versions/5056573aea0d_add_description_column_to_mlmodelsql.py
@@ -0,0 +1,228 @@
+"""Add description column to MLModelSQL
+
+Revision ID: 5056573aea0d
+Revises: d5c9e13a8b66
+Create Date: 2024-11-30 12:41:40.018225
+
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import postgresql
+
+# revision identifiers, used by Alembic.
+revision = '5056573aea0d'
+down_revision = 'd5c9e13a8b66'
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.alter_column('forecast_values', 'start_utc',
+               existing_type=postgresql.TIMESTAMP(),
+               comment='The start of the time interval over which this predicted power value applies',
+               existing_nullable=False)
+    op.alter_column('forecast_values', 'end_utc',
+               existing_type=postgresql.TIMESTAMP(),
+               comment='The end of the time interval over which this predicted power value applies',
+               existing_nullable=False)
+    op.alter_column('forecast_values', 'forecast_power_kw',
+               existing_type=sa.DOUBLE_PRECISION(precision=53),
+               comment='The predicted power generation of this site for the given time interval',
+               existing_nullable=False)
+    op.alter_column('forecast_values', 'horizon_minutes',
+               existing_type=sa.INTEGER(),
+               comment='The time difference between the creation time of the forecast value and the start of the time interval it applies for',
+               existing_nullable=True)
+    op.alter_column('forecast_values', 'forecast_uuid',
+               existing_type=sa.UUID(),
+               comment='The forecast sequence this forcast value belongs to',
+               existing_nullable=False)
+    op.alter_column('forecasts', 'site_uuid',
+               existing_type=sa.UUID(),
+               comment='The site for which the forecast sequence was generated',
+               existing_nullable=False)
+    op.alter_column('forecasts', 'timestamp_utc',
+               existing_type=postgresql.TIMESTAMP(),
+               comment='The creation time of the forecast sequence',
+               existing_nullable=False)
+    op.alter_column('forecasts', 'forecast_version',
+               existing_type=sa.VARCHAR(length=32),
+               comment='The semantic version of the model used to generate the forecast',
+               existing_nullable=False)
+    op.alter_column('generation', 'site_uuid',
+               existing_type=sa.UUID(),
+               comment='The site for which this geenration yield belongs to',
+               existing_nullable=False)
+    op.alter_column('generation', 'generation_power_kw',
+               existing_type=sa.DOUBLE_PRECISION(precision=53),
+               comment='The actual generated power in kW at this site for this datetime interval',
+               existing_nullable=False)
+    op.alter_column('generation', 'start_utc',
+               existing_type=postgresql.TIMESTAMP(),
+               comment='The start of the time interval over which this generated power value applies',
+               existing_nullable=False)
+    op.alter_column('generation', 'end_utc',
+               existing_type=postgresql.TIMESTAMP(),
+               comment='The end of the time interval over which this generated power value applies',
+               existing_nullable=False)
+    op.add_column('ml_model', sa.Column('description', sa.String(), nullable=True))
+    op.alter_column('site_groups', 'service_level',
+               existing_type=sa.INTEGER(),
+               comment='The service level of the site group. 0 is free, 1 is paid.',
+               existing_comment='The service level of the site group. 0 is free1 is paid',
+               existing_nullable=True)
+    op.alter_column('sites', 'client_site_id',
+               existing_type=sa.INTEGER(),
+               comment='The ID of the site as given by the providing client',
+               existing_nullable=True)
+    op.alter_column('sites', 'client_site_name',
+               existing_type=sa.VARCHAR(length=255),
+               comment='The ID of the site as given by the providing client',
+               existing_nullable=True)
+    op.alter_column('sites', 'region',
+               existing_type=sa.VARCHAR(length=255),
+               comment='The region within the country in which the site is located',
+               existing_nullable=True)
+    op.alter_column('sites', 'dno',
+               existing_type=sa.VARCHAR(length=255),
+               comment='The Distribution Node Operator that owns the site',
+               existing_nullable=True)
+    op.alter_column('sites', 'gsp',
+               existing_type=sa.VARCHAR(length=255),
+               comment='The Grid Supply Point in which the site is located',
+               existing_nullable=True)
+    op.alter_column('sites', 'orientation',
+               existing_type=sa.DOUBLE_PRECISION(precision=53),
+               comment='The rotation of the panel in degrees. 180° points south',
+               existing_nullable=True)
+    op.alter_column('sites', 'tilt',
+               existing_type=sa.DOUBLE_PRECISION(precision=53),
+               comment='The tile of the panel in degrees. 90° indicates the panel is vertical',
+               existing_nullable=True)
+    op.alter_column('sites', 'capacity_kw',
+               existing_type=sa.DOUBLE_PRECISION(precision=53),
+               comment='The physical limit on the production capacity of the site',
+               existing_nullable=True)
+    op.alter_column('sites', 'inverter_capacity_kw',
+               existing_type=sa.DOUBLE_PRECISION(precision=53),
+               comment='The inverter capacity of the site',
+               existing_comment='The PV module nameplate capacity of the site',
+               existing_nullable=True)
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.alter_column('sites', 'inverter_capacity_kw',
+               existing_type=sa.DOUBLE_PRECISION(precision=53),
+               comment='The PV module nameplate capacity of the site',
+               existing_comment='The inverter capacity of the site',
+               existing_nullable=True)
+    op.alter_column('sites', 'capacity_kw',
+               existing_type=sa.DOUBLE_PRECISION(precision=53),
+               comment=None,
+               existing_comment='The physical limit on the production capacity of the site',
+               existing_nullable=True)
+    op.alter_column('sites', 'tilt',
+               existing_type=sa.DOUBLE_PRECISION(precision=53),
+               comment=None,
+               existing_comment='The tile of the panel in degrees. 90° indicates the panel is vertical',
+               existing_nullable=True)
+    op.alter_column('sites', 'orientation',
+               existing_type=sa.DOUBLE_PRECISION(precision=53),
+               comment=None,
+               existing_comment='The rotation of the panel in degrees. 180° points south',
+               existing_nullable=True)
+    op.alter_column('sites', 'gsp',
+               existing_type=sa.VARCHAR(length=255),
+               comment=None,
+               existing_comment='The Grid Supply Point in which the site is located',
+               existing_nullable=True)
+    op.alter_column('sites', 'dno',
+               existing_type=sa.VARCHAR(length=255),
+               comment=None,
+               existing_comment='The Distribution Node Operator that owns the site',
+               existing_nullable=True)
+    op.alter_column('sites', 'region',
+               existing_type=sa.VARCHAR(length=255),
+               comment=None,
+               existing_comment='The region within the country in which the site is located',
+               existing_nullable=True)
+    op.alter_column('sites', 'client_site_name',
+               existing_type=sa.VARCHAR(length=255),
+               comment=None,
+               existing_comment='The ID of the site as given by the providing client',
+               existing_nullable=True)
+    op.alter_column('sites', 'client_site_id',
+               existing_type=sa.INTEGER(),
+               comment=None,
+               existing_comment='The ID of the site as given by the providing client',
+               existing_nullable=True)
+    op.alter_column('site_groups', 'service_level',
+               existing_type=sa.INTEGER(),
+               comment='The service level of the site group. 0 is free1 is paid',
+               existing_comment='The service level of the site group. 0 is free, 1 is paid.',
+               existing_nullable=True)
+    op.drop_column('ml_model', 'description')
+    op.alter_column('generation', 'end_utc',
+               existing_type=postgresql.TIMESTAMP(),
+               comment=None,
+               existing_comment='The end of the time interval over which this generated power value applies',
+               existing_nullable=False)
+    op.alter_column('generation', 'start_utc',
+               existing_type=postgresql.TIMESTAMP(),
+               comment=None,
+               existing_comment='The start of the time interval over which this generated power value applies',
+               existing_nullable=False)
+    op.alter_column('generation', 'generation_power_kw',
+               existing_type=sa.DOUBLE_PRECISION(precision=53),
+               comment=None,
+               existing_comment='The actual generated power in kW at this site for this datetime interval',
+               existing_nullable=False)
+    op.alter_column('generation', 'site_uuid',
+               existing_type=sa.UUID(),
+               comment=None,
+               existing_comment='The site for which this geenration yield belongs to',
+               existing_nullable=False)
+    op.alter_column('forecasts', 'forecast_version',
+               existing_type=sa.VARCHAR(length=32),
+               comment=None,
+               existing_comment='The semantic version of the model used to generate the forecast',
+               existing_nullable=False)
+    op.alter_column('forecasts', 'timestamp_utc',
+               existing_type=postgresql.TIMESTAMP(),
+               comment=None,
+               existing_comment='The creation time of the forecast sequence',
+               existing_nullable=False)
+    op.alter_column('forecasts', 'site_uuid',
+               existing_type=sa.UUID(),
+               comment=None,
+               existing_comment='The site for which the forecast sequence was generated',
+               existing_nullable=False)
+    op.alter_column('forecast_values', 'forecast_uuid',
+               existing_type=sa.UUID(),
+               comment=None,
+               existing_comment='The forecast sequence this forcast value belongs to',
+               existing_nullable=False)
+    op.alter_column('forecast_values', 'horizon_minutes',
+               existing_type=sa.INTEGER(),
+               comment=None,
+               existing_comment='The time difference between the creation time of the forecast value and the start of the time interval it applies for',
+               existing_nullable=True)
+    op.alter_column('forecast_values', 'forecast_power_kw',
+               existing_type=sa.DOUBLE_PRECISION(precision=53),
+               comment=None,
+               existing_comment='The predicted power generation of this site for the given time interval',
+               existing_nullable=False)
+    op.alter_column('forecast_values', 'end_utc',
+               existing_type=postgresql.TIMESTAMP(),
+               comment=None,
+               existing_comment='The end of the time interval over which this predicted power value applies',
+               existing_nullable=False)
+    op.alter_column('forecast_values', 'start_utc',
+               existing_type=postgresql.TIMESTAMP(),
+               comment=None,
+               existing_comment='The start of the time interval over which this predicted power value applies',
+               existing_nullable=False)
+    # ### end Alembic commands ###
diff --git a/pvsite_datamodel/sqlmodels.py b/pvsite_datamodel/sqlmodels.py
index bd69201..096e577 100644
--- a/pvsite_datamodel/sqlmodels.py
+++ b/pvsite_datamodel/sqlmodels.py
@@ -30,6 +30,7 @@ class MLModelSQL(Base, CreatedMixin):
     model_uuid = sa.Column(UUID, primary_key=True, server_default=sa.func.gen_random_uuid())
     name = sa.Column(sa.String)
     version = sa.Column(sa.String)
+    description = sa.Column(sa.String)
 
     forecast_values: Mapped[List["ForecastValueSQL"]] = relationship(
         "ForecastValueSQL", back_populates="ml_model"