At 19:32 the Sussex EOC alerted the DVFD, Millsboro VFC & SCEMS Medic 103 for a structure fire at NRG Power - Indian River Plant. Engine 731 responded at 19:36 under the command of Deputy Glenn & advised the caller reported a warehouse on fire. Crews could see a large column of black smoke in the sky from approx. 2 miles out from the plant. Engine 731 arrived with a 100' x 200' metal warehouse well involved on side "C" & heavy smoke through out the entire structure. Engine 831 & Ladder 83 arrived & set-up on side "B" supporting the crew from Engine 731. Staging was set-up at the south gate to the plant. Deputy Glenn established Power Plant command and requested two additional engine companies as well as a two engine cover-up for both Dagsboro & Millsboro. Crews from both Engine companies entered the warehouse advancing a 2" & 1 3/4" lines with zero visibility. After a quick interior size up it was learned that the baulk of the fire was on the ground & mezzanine levels on the exterior lean to. The crews from Engine/Tanker 73 & Rescue Co. 73 arrived and advanced two 2" lines to side "C" and began suppression efforts while interior crews repositioned to side "C". At this time due to high temperatures & the need for additional resources IC requested 2 additional Engine companies, 2 Rescue companies & the Sussex County Foam Unit to the scene. Rehab 90 (Roxana) was also called to the scene along with 2 additional BLS units. Crews had the baulk of the fire knocked in approx. 20 min. IC placed the incident under control at 20:48 holding all units. Two firefighters were transported to area hospitals for minor injuries. At the height of the fire crews from Dagsboro, Millsboro, Frankford, Selbyville, Georgetown, Millville, Gumboro, Roxana, Sussex County Haz-Med, SCEMS 15, 18, 100, Medic 103, 105 & 108 were operating on scene. With Indian River, Bethany Beach, Rehoboth Beach, Lewes, Delmar, Laurel & Bishopville (Md), were providing cover assignments. For a total of 15 departments & 200+ firefighters, 3 SCEMS ALS units & Supervisors, DNRC & DSFMO were mobilized for the incident. DSFMO determined the cause of the blaze to be a faulty electrical cord. Crews operated on scene for almost 3 hrs. be for returning to service. Thanks to all the departments and crews operating on the incident. Job well done.