Fort Myers in Lee County, Florida — The American South (South Atlantic)
Motor Generator
Edisons Power Source
| | Edison and Ford Winter Estates | |
Edison used a variety of equipment to electrify his estate over the decades. Edison and Ezra Gilliland personally supervised the installation of the first electric dynamo,* or generator, in April of 1887. The engine was driven by a coal-fired steam boiler. By 1888, all the necessary electrical devices were "at his laboratory... and all that is required is putting up the poles and stringing the wires."
* A dynamo is an electrical generator that creates direct current, or DC. It is powered by different sources, such as steam, coal, or water.
Edison left Fort Myers in May 1887, and would not return until 1901. The boiler and dynamo continued operating lights and water pumps for about 25 years. The dynamo was not operated 24 hours a day, but only when needed.
Records show major repair work on the boiler in 1906 and 1910. This indicates that the estate continued to use Edison's local direct current power for almost 25 years, although the first alternating current electric plant had been built in Fort Myers in 1898.
By 1919, the dynamos that powered the lamps on the "Electric Wizard's" estate were removed and shipped to West Orange, New Jersey. Electric bills first appear in the documents in 1918, confirming that the estate had finally been converted from direct current to alternating current that was provided by the local power company. Eventually, the equipment was brought to the Henry Ford Museum and Greenfield Village in Dearborn, Michigan.
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Part of the power generating system was located inside the original Edison laboratory. The small dynamo and flywheel can be seen in the left corner of this image, as well as a portion of the brick coal furnace at the back (east end) of the lab.
(captions)
Left: The Reliance docked at the end of the Edison Pier.
Edison's 36-foot electric launch was one of two boats he had here in Fort Myers. The other boat was named the "Mina." The Reliance was powered by nickel iron alkaline batteries recharged by a generator.
This generator was made by the Hertner
Electric Company in Cleveland, Ohio.
Serial No. 2528
15hp 220v 30 60 Hz
37A 1750 RPM
400 C Continuous Duty
You can see a motor generator similar to
this one Edison used for his boats in the
Orientation Gallery in our Museum.
Erected by Edison and Ford Winter Estates.
Topics. This historical marker is listed in these topic lists: Notable Places • Science & Medicine • Waterways & Vessels. A significant historical month for this entry is April 1887.
Location. 26° 38.116′ N, 81° 52.824′ W. Marker is in Fort Myers, Florida, in Lee County. It is on McGregor Boulevard 0.1 miles north of Llewellyn Drive, on the right when traveling north. Located on the grounds of the Edison and Ford Winter Estates on the river side of the complex. Touch for map. Marker is at or near this postal address: 2350 McGregor Blvd, Fort Myers FL 33901, United States of America. Touch for directions.
Regionally, this marker is on Florida’s Gulf Coast. It is also in the American South and on the Gulf Coast. Globally, it is in the North Atlantic Region, North America, a Gulf of Mexico state, the Western Hemisphere, the Western World, and the Anglosphere. Historically, it finds itself in what was once New Spain, the territory of the Mississippian Culture, one of the Confederate States of America, and the Antebellum South.
Other nearby markers. At least 8 other markers are within walking distance of this marker: Water Systems (here, next to this marker); The Edison Cistern (a few steps from this marker); Swimming Pool (within shouting distance of this marker); The Moonlight Garden (within shouting distance of this marker); Japanese Garden (within shouting distance of this marker); Thomas Edisons Caretakers House (within shouting distance of this marker); Edisons Study (within shouting distance of this marker); a different marker also named Edisons Study (within shouting distance of this marker). Touch for a list and map of all markers in Fort Myers.
Also see . . .
1. The Reliance. (Submitted on August 8, 2025, by Brandon D Cross of Flagler Beach, Florida.)
2. Edison and Ford Winter Estates. (Submitted on August 8, 2025, by Brandon D Cross of Flagler Beach, Florida.)
Credits. This page was last revised on August 9, 2025. It was originally submitted on August 8, 2025, by Brandon D Cross of Flagler Beach, Florida. This page has been viewed 108 times since then and 21 times this year. Photos: 1, 2, 3. submitted on August 8, 2025, by Brandon D Cross of Flagler Beach, Florida. • J. J. Prats was the editor who published this page.


