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Blog · 2026-04-07

Standby or Portable? A Missouri Generator Buying Guide

Ice storms and summer straight-line winds take Missouri power out on a schedule nobody controls. Here is how to pick backup that fits.

Start with the outage you are actually preparing for

A four-hour summer outage and a three-day January ice event are different problems. If your area loses power briefly a few times a year, a portable generator and a properly installed inlet is honest, sufficient, and a fraction of the cost. If you are on a rural feeder that stays down for days, or you have a well pump, a sump pump, or medical equipment, automatic standby earns its price.

What a standby generator does that a portable cannot

It starts itself. The transfer switch senses the outage, the unit fires within seconds, and the house carries on whether or not you are home. That last part matters more than people expect — outages do not wait until you are back from vacation, and a frozen pipe or a flooded basement costs more than the generator did.

Sizing, honestly

Sizing is about motor starting loads, not square footage. Well pumps, air conditioning compressors, and heat pumps draw far more current starting than running. Load management modules let a smaller generator serve a whole house by temporarily shedding the big loads, which is often cheaper than buying a larger unit.

Transfer switches and interlocks

An automatic transfer switch is what makes standby automatic. A manual transfer switch or a panel interlock kit is what makes a portable generator safe. Both do the same critical job: they make it physically impossible to backfeed the utility line, which is what protects the crews working to restore your power.

Never backfeed through a dryer outlet

The suicide cord — a double-male cord run from a generator into a household outlet — is exactly as dangerous as its nickname. It energizes your neighborhood's lines and every exposed pin on that cord. An interlock kit costs a fraction of what it is worth.

Fuel choices in Missouri

Natural gas standby units never need refueling, which is the whole point during a long outage, but require a gas line sized for the load. Propane is the answer for rural properties without gas service. Gasoline portables need fuel stored and rotated, and stations without power cannot pump.

Maintenance is not optional

Let the weekly exercise cycle run. Change oil and filters annually. Replace the battery every few years — a dead battery is the single most common reason a standby generator fails to start when it is finally needed.


Questions about your own place? Call (833) 652-8933. We answer twenty-four hours a day, anywhere in Missouri.

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