A whole-home install shaped by the river basin
A standby generator install turns a bare corner of your yard into automatic backup power that senses an outage, starts on its own, carries the house within seconds, and hands control back when the grid returns. On the First Coast the machine is the straightforward part. The harder question is which utility restores your service and how high the water can rise on your lot, because the St. Johns River basin and a patchwork of five power companies both shape the install. River City Generators does not do the work. This is an honest resource that connects Jacksonville-area homeowners with one vetted, licensed local installer who owns the whole project, from the first load calculation to the final inspection.
For a play-by-play of a single crew day, the install day walkthrough covers that. This page is about the service itself: what a proper First Coast install includes, the local details that shape it, and roughly what it runs.
Start with your utility, because there are five of them
Most metros have one power company. The First Coast has at least five, and which one serves your address changes the outage picture your generator is answering. JEA, the municipal utility, covers Duval County and delivers both electricity and natural gas across Jacksonville, so much of the city can run a generator straight off a gas main. FPL serves St. Johns County, including St. Augustine and Nocatee, along with mainland Nassau. Clay Electric Cooperative powers Orange Park, Fleming Island, and Middleburg in Clay County. Beaches Energy runs the grid in Jacksonville Beach and Ponte Vedra, and Florida Public Utilities serves Amelia Island and Fernandina, with both electric and gas.
That map matters for the install because the fuel decision drives placement, tank sizing, and cost more than the brand ever will. A home tied to a JEA or FPU gas main can run indefinitely during a multi-day outage. Where mains do not reach, propane is the practical fuel, covered in propane and natural gas fuel setup. The installer confirms what is actually at your meter before recommending a unit.
Elevating for the St. Johns and its creeks
This is where a First Coast install genuinely departs from one in a drier market. The St. Johns River is broad, tidal, and slow to drain, and when a storm stacks surge against rainfall the water backs up rather than running off. Hurricane Irma in 2017 drove record river flooding through downtown Jacksonville and pushed Black Creek in Clay County to a record crest near 28.5 feet, inundating homes in Middleburg and Fleming Island that had never taken water. Matthew had scoured the coast the year before. A generator set flat at grade in that landscape can be ruined by the very storm it was bought to outlast.
The installer builds a raised pad that lifts the base, the electronics, and the fuel connections above the Base Flood Elevation for your address, following the local flood requirement rather than guessing. In riverfront and creek-adjacent neighborhoods around Fleming Island and low pockets of Jacksonville, this elevation is the defining constraint on placement, not an afterthought.
Sizing to what you actually run
Sizing is a load calculation, not a number pulled off your square footage. The installer walks your panel and the circuits you want live during an outage, then sizes the unit to carry them. In this heat, central air conditioning is almost always the dominant load, and undersizing so the generator cannot start the compressor is a common and expensive mistake. The home standby sizing guide walks through the math. Getting it right on paper is far cheaper than finding the gap during the first outage.
The rest of the turnkey scope
Beyond utility, elevation, fuel, and sizing, a full install from the licensed local installer generally also includes:
- The transfer switch. An automatic transfer switch wired at your panel so the changeover is instant and safe, with no chance of backfeeding the utility line while crews work on it. Transfer switch installation explains that piece.
- Pad and clearances. The base set with the NFPA 37 and manufacturer clearances from windows, doors, and vents, worked around the flood elevation above.
- Permits and inspection. Electrical and gas or mechanical permits pulled through the correct jurisdiction, since the City of Jacksonville runs consolidated Duval city-county permitting while St. Johns, Clay, and Nassau counties each run their own, then coordination of the inspections that follow.
- Commissioning. Startup, a load test, a simulated outage to prove the automatic changeover, and configuration of the weekly self-exercise so faults surface long before a storm.
Brands and equipment
Licensed installers across the First Coast most often work with Generac, with Kohler, Cummins, and Briggs and Stratton also common on local homes. The right pick depends on the size you need, your fuel, and how quickly parts and service can be sourced nearby. A good installer steers you toward equipment they can stand behind and service fast, which matters far more than any spec sheet when a unit needs attention in the middle of hurricane season.
What it costs, roughly
Treat this as a planning ballpark, not a quote. A permitted whole-home standby install on the First Coast commonly lands in the range of 12,000 to 20,000 dollars once you count the unit, transfer switch, fuel and electrical work, the pad, and permits. Flood-elevation work, long fuel or wire runs, larger homes, and added propane capacity all push the total up, and riverfront and creek-adjacent sites tend to run higher for exactly those reasons. Only an in-home assessment produces a real number, because site conditions swing the figure more than the equipment brand.
Get connected with a local installer
Tell us your city and we will route you to the one vetted, licensed installer covering your area for a free assessment and quote. Start on the River City Generators homepage, or go straight to your city page for Jacksonville, St. Augustine, or Fleming Island.
Already own a unit that needs attention rather than a new install? See generator repair and diagnostics. To keep a new system storm-ready, generator maintenance covers what it needs year to year.