Power outage calls: generator service and safety

What outage-day calls look like

When a storm or heat wave takes down the grid, an electrical contractor's phones fill with calls that look similar but need very different answers. Most callers simply have no power and need the utility. Some own a standby generator that did not start. Some just bought a portable generator and want to know how to plug it into the house. Others call after power returns, because half the house is dark or something smells hot.

Evening and weekend work with overtime is already common for electricians^[1], and outage days stretch it further. The goal is to spend licensed time on the calls that need it, and to give every other caller a safe, clear answer in under two minutes.

Outage-day triage

Put this table on the CSR screen and in the script for whoever answers your overflow. The two calls that most often get the wrong answer are the hookup question and the partial-power call after restoration.

Backfeed: the line every caller should hear

Backfeeding means powering a house by plugging a generator into a wall outlet or dryer receptacle with a double-ended cord, without a transfer switch or interlock. It can send power back out through the service onto the utility's lines, where it can injure or kill line workers restoring service, and it can energize wiring in neighboring homes. When grid power returns, it can also destroy the generator and start a fire. There is no safe version of it.

That last sentence matters for your business too. Outage days are when homeowners decide they want a proper generator setup. Transfer switch and interlock installs involve the service equipment and usually need a permit and a licensed electrician; most states require electricians to be licensed^[2]. Book the estimate on the same call.

Portable generator safety, in plain words

The deadliest outage risk is not electrical; it is carbon monoxide. Each year more than 400 Americans die from unintentional carbon monoxide poisoning not linked to fires, and more than 14,000 are hospitalized^[3]. Ready.gov's guidance is that generators and fuel should always be used outdoors and at least 20 feet away from windows, doors and attached garages, and that every level of the home should have a working CO detector^[4].

• Never run a generator in the house, a basement, a garage, even with the door open, or on a covered porch.
• Keep it at least 20 feet from windows, doors and vents, with the exhaust pointed away from the house.
• Plug appliances directly into the generator with heavy-duty outdoor cords rated for the load.
• Turn it off and let it cool before refueling.
• If anyone feels dizzy, sick or has a headache, get everyone outside and call 911.

Fires are the other risk. US fire departments responded to an estimated 344,600 residential building fires in 2023, with 2,890 deaths^[5]. Outages add candles, space heaters on generator power and overloaded cords to the usual causes. A one-line reminder to blow out candles and keep cords uncoiled and undamaged is worth the extra ten seconds.

Standby generator service: who goes first

During a long outage, every standby generator owner whose unit fails calls at once, and you cannot reach them all on day one. Decide the order in advance and explain it honestly.

1. Customers who depend on powered medical equipment such as oxygen concentrators, home dialysis or powered mobility. Millions of Medicare beneficiaries rely on electricity-dependent medical and assistive equipment^[6], so this list is not small. Flag these customers in your system before the season.
2. Maintenance agreement customers, as promised in their plan.
3. Customers whose unit you installed, starting with the oldest service date.
4. Everyone else, scheduled by area.

For medical-priority callers, the CSR should also ask whether they have a backup plan for the device. Ready.gov advises people to talk to their medical provider about a power outage plan for electricity-powered medical devices and to have alternate plans for refrigerating medicines^[4]. If someone's device will run out of battery before you can arrive, tell them to contact their equipment supplier or call 911.

Diagnose by phone before rolling

1. 01

   Ask what the controller shows

   Most standby units have a status light or screen. Ask for the color, any code, and whether it says off, manual or auto.

2. 02

   Check the mode switch

   Units left in off or manual after maintenance will not start on their own. Walk the caller through returning it to auto if your manufacturer's guidance allows.

3. 03

   Check fuel

   Is the gas supply on, the propane tank above the level the unit needs, or the diesel topped up?

4. 04

   Check the breaker

   Has the generator's main breaker tripped? One reset is fine; repeated trips need a tech.

5. 05

   Ask about the last exercise

   Did the weekly exercise run recently? If not, a battery or controller fault is likely; note it for the tech's parts list.

A good share of failed starts during outages come down to the mode switch, a tripped breaker or fuel. Each one solved on the phone frees a tech for the calls that need one.

Calls after the power comes back

Restoration brings its own wave of calls, often a day or two after the outage calls stop. The most important ones to catch are the ones that point to damage on the home side.

• Half the house dead, or lights that dim and brighten: possible damaged neutral or service connection. Switch off sensitive electronics and treat it as a dispatch call.
• A burning smell or a warm panel: switch off the affected circuits, and if there is smoke, leave and call 911.
• Appliances or HVAC equipment that will not restart: check breakers and reset buttons first, and allow a few minutes for some systems to come out of a safety delay.
• Surge damage to electronics, wells, garage door openers or appliances: book a daytime visit, and offer whole-home surge protection as part of the repair conversation.
• Standby generators that did not transfer back to utility power: book a service visit and ask the customer to leave the unit in its current mode.

A short line in the outage greeting, telling callers what to do if power returns with problems, saves the CSR time and gets the dangerous calls to the front of the queue.

Example: day two of an ice storm outage

Example. An electrical contractor has 40 standby generator calls waiting on the morning of day two. The CSR works the list in order: three customers flagged for home oxygen are dispatched first, and one is told to call her oxygen supplier because her concentrator battery will not last until the tech arrives. Phone diagnosis clears nine calls: six units in manual mode after spring maintenance, two tripped breakers and one closed gas valve. The rest are grouped by area. Along the way, the CSR books eleven transfer switch or interlock estimates from callers who asked about plugging portable generators into the house.

Before the next outage

• Run a pre-season check on every standby unit under agreement: battery, oil, filters, exercise schedule and mode switch.
• Replace batteries on a schedule rather than waiting for failure.
• Update your medical-priority list and confirm phone numbers.
• Load common generator parts on trucks: batteries, spark plugs, filters, controller fuses.
• Record an outage greeting with the backfeed and CO lines, ready to switch on.

For electrical symptoms that show up when power returns, use the electrical emergency triage card.