A hurricane knocks out grid power across Baldwin County for four days, and an RV dealership with no backup power has a dark sales lot, a locked-down service bay, and zero ability to run diagnostics on inventory that needs shore power to stay charged. This guide breaks down what dealership owners and sales lot managers need before they call an installer.
- Kohler and Generac commercial units (48-150kW) handle full-lot power for dealerships with sales offices and service bays.
- Automatic transfer switches sized to commercial load are non-negotiable for generator installation for rv dealerships in 2026.
- Propane tanks over 500 gallons keep a mid-size lot running 5+ days without refueling during hurricane season.
- Skip residential-grade units under 20kW for any lot with a service bay - they stall under compressor and lift load.
Why this matters
RV dealerships run differently than a house. You've got sales office HVAC, lighting across an outdoor lot, service bay lifts and compressors, security systems, and often battery maintenance systems keeping inventory charged. Lose grid power for even 48 hours during hurricane season and you lose sales days, risk battery drain across dozens of units on the lot, and leave the property dark and unsecured.
Baldwin County Generators installs and services standby systems for commercial properties across Daphne, Fairhope, Foley, and Gulf Shores, and dealership lots are a different sizing problem than a single-family home. A licensed electrical contractor sizing your system needs to account for simultaneous startup load across service bay equipment, not just steady-state draw.
Who this is for
This guide is built for RV dealership owners, general managers, and sales lot operators along the Gulf Coast who need the sales office, service bay, and lot systems running through a grid outage - not just a single building. If your property has one small office and no service bay, you're closer to a light-commercial install than what's covered here.
What to look for in generator installation for RV dealerships
Total connected load across the property
A dealership isn't one building - it's a sales office, a service bay with lifts and compressors, exterior lot lighting, and often a parts department. Undersizing means the compressor trips the system every time it kicks on. Get a load calculation that adds startup amperage for the biggest motor on the property, not just running watts.
Fuel type and on-site supply
Propane tanks of 500 gallons or larger keep a 48-100kW unit running 4-6 days without a refill truck, which matters when refueling logistics get difficult during storm season. Diesel units run longer per gallon but need more frequent delivery scheduling in a coastal outage. Natural gas, where available, never runs dry but depends on the utility staying intact.
Automatic transfer switch capacity
The transfer switch has to match your generator's full output, not just your panel's rated amperage. A mismatched switch is the single most common reason a correctly-sized generator still fails to carry the whole lot. This is a licensed-electrician decision, not a DIY spec pull.
Installation and permitting on commercial property
Commercial generator installs require permitting, proper clearances from structures, and inspection sign-off that differs from a residential job. A contractor who's installed on dealership and commercial lots in Foley or Gulf Shores knows the setback rules local jurisdictions actually enforce.
Maintenance response time
A generator that hasn't been serviced in 18 months is a coin flip during an actual outage. Ask any installer for their maintenance contract terms and average service response time before hurricane season, not during it.
Noise and placement near customer traffic
A 100kW unit running at full load is loud. Placement away from the sales office entrance and customer walkways matters for a property where people are shopping, not just living.
Top picks for dealership and sales lot installs
Kohler commercial standby (48-150kW) - the workhorse pick. Kohler's commercial line handles service bay startup loads without stalling, and units in the 80kW range cover a mid-size lot with sales office, service bay, and full exterior lighting. Runtime on a 1,000-gallon propane tank pushes past 6 days at partial load. Buy for any dealership with an active service bay.
Generac industrial (48-150kW) - the scale pick. Generac's commercial units scale to the largest lots, with load management software that sheds non-essential circuits automatically if total draw spikes. That software matters on a property running lot lighting, HVAC, and shop equipment at once. Buy for dealerships over 15,000 square feet of covered space.
Honeywell commercial (36-60kW) - the smaller-lot pick. Honeywell units in this range fit a sales-office-only property with a small service area, at a lower fuel draw than the larger Kohler and Generac units. They won't carry a full service bay with lifts running simultaneously. Consider for lots under 10,000 square feet with light service work.
Briggs & Stratton commercial (20-48kW) - the compact pick. This tier covers a sales office and lot lighting but stalls fast if you add compressor or lift startup load on the same circuit. Consider only for a sales-office-only lot with no service bay, otherwise Skip.
What to avoid
- Residential-grade units under 20kW. They're built for a house circuit panel, not commercial startup amperage from service bay equipment.
- Undersized transfer switches sold as a package deal. A switch rated below the generator's full output defeats the sizing work entirely.
- Skipping the load calculation to save on the quote. A cheaper quote that skips proper load sizing costs more the first time the compressor trips the whole system during an outage.
Get a load calculation for your lot
Sizing for sales office, service bay, and lot lighting together.
Verdict comparison
| Unit class | kW range | Best for | Runtime on 1,000-gal propane | Verdict |
|---|---|---|---|---|
| Kohler commercial | 48-150kW | Mid-size lot with service bay | 6+ days | Buy |
| Generac industrial | 48-150kW | Large lots, 15,000+ sq ft | 5-6 days | Buy |
| Honeywell commercial | 36-60kW | Sales office, light service | 4-5 days | Consider |
| Briggs & Stratton | 20-48kW | Office-only, no service bay | 3-4 days | Consider |
FAQ
What size generator does an RV dealership need?
Most dealerships with a sales office and service bay need 48-150kW depending on square footage and equipment. A load calculation covering startup amperage for lifts and compressors, not just steady-state draw, determines the exact number.
How much does generator installation for RV dealerships cost in 2026?
Commercial standby installs for dealership-size properties typically run higher than residential jobs due to permitting, transfer switch capacity, and fuel infrastructure. Get a site-specific quote since load requirements vary by lot size and service bay equipment.
Is propane or diesel better for a dealership generator?
Propane in a 500-1,000 gallon tank runs 4-6 days without refueling and stores indefinitely, making it the more reliable choice for coastal Alabama hurricane season. Diesel offers more energy per gallon but needs more frequent delivery scheduling during an active storm.
Can one generator run both the sales office and service bay?
Yes, if it's sized for combined load including service bay startup amperage from lifts and compressors. Undersized units that only account for office load stall the moment shop equipment kicks on.
How long does commercial generator installation take?
Commercial installs on dealership properties typically take longer than residential jobs because of permitting and inspection requirements specific to commercial structures. Timeline depends on local jurisdiction turnaround in Daphne, Fairhope, Foley, or Gulf Shores.
Do dealerships need a maintenance contract for their generator?
Yes, a serviced unit is dramatically more likely to start during an actual outage than one that's gone 18+ months without maintenance. Ask for average service response time before hurricane season, not after.
What's the biggest sizing mistake dealerships make?
Sizing off steady-state load instead of startup amperage for the largest motor on the property, usually a lift or compressor in the service bay. That mismatch is the top reason correctly-rated generators still trip under load.
One last thing
The transfer switch mismatch problem shows up more often than undersizing the generator itself - a property owner buys the right kW rating, then the switch underneath it caps output below what the unit can actually deliver. Have your installer confirm transfer switch rating against generator output in writing before the job closes out, not after the first outage during hurricane season 2026.