Every Henderson homeowner researching backup power runs into the same fork in the road: a portable generator you wheel out and plug in, or a whole-home standby system that starts itself before you even notice the power's out. Both are legitimate options — the right one depends on how often you actually lose power, what you need to keep running, and what you're willing to spend and maintain.
If outages in your neighborhood are rare and brief, and you mainly need to keep a fridge and a few lights on, a portable generator ($500–$2,500) with a manual transfer switch is a reasonable, lower-cost choice. If you need your AC running during a summer outage, have medical equipment that can't lose power, or you're tired of manually setting up a generator during a storm, a whole-home standby system is the more dependable fit — see our full cost guide for standby pricing by size.
| Factor | Portable Generator | Whole-Home Standby |
|---|---|---|
| Startup | Manual — you set it up and start it | Automatic, usually within seconds of an outage |
| Fuel | Gasoline (needs refueling every 8–12 hrs) | Natural gas or propane, connected to your home's line |
| Coverage | A few circuits via extension cords or a manual switch | Whole house or a defined essential-circuit panel |
| Typical Cost | $500 – $2,500 (unit + manual switch install) | $3,500 – $15,000+ installed |
| Noise | Loud, positioned near the home | Quieter, permanently sited outside |
| Runs Unattended | No — needs refueling and monitoring | Yes — runs as long as gas/propane supply lasts |
Portable units are a fair choice for renters, homes with infrequent short outages, or anyone who just wants a backup for the fridge, some lights, and a phone charger during a storm. A licensed electrician can install a manual transfer switch so you're not running extension cords through a window — this still requires a permit and inspection, same as any electrical work.
Henderson summers push AC systems hard, and a multi-hour outage during a heat wave isn't just uncomfortable — it can be dangerous for kids, older adults, and anyone relying on powered medical equipment. A standby system connects to your existing gas line, includes an automatic transfer switch, and starts on its own whether you're home or not. It's the right call if you want to stop thinking about outages entirely rather than reacting to them.
For short, occasional outages and a handful of essential circuits, yes. For homes that rely on AC during extended summer outages, or that need whole-house coverage, a standby system is more reliable. See our full generator installation FAQ for more.
Yes — the manual transfer switch used for a portable unit doesn't carry over, since standby systems require an automatic transfer switch, but it's a straightforward upgrade path.
The generator itself doesn't, but a manual transfer switch installed by an electrician does require a permit and inspection through the City of Henderson or Clark County — same as our standby installations. See our full permit guide for how that process works in each jurisdiction.
We install and service both manual transfer switches for portable generators and full whole-home standby systems across Henderson and the Las Vegas Valley, including North Las Vegas and Boulder City. A free on-site assessment is the fastest way to know which option — and which size — actually fits your home.