Dental Office Power Outage Plan for New York City: Con Ed Outages, Heat Waves and Flood Zones

A July Thursday in Astoria: the lights dip twice, the imaging PC in operatory three restarts mid-bitewing, and the lobby notice says "voltage". The front desk wants to know whether to keep seating patients.

It sits beside our New York City dental IT guide, and the services Legend offers city practices are on its page about IT support for dental offices in New York City. This page is for the office manager who just lived through that afternoon, or who has a coastal storm on the forecast, or who found a notice from building management announcing a power shutdown for electrical work next Saturday. It does not ask you to become an electrician. It gives you three New York outage types side by side, a first-hour routine, an equipment order your team can follow from a printed sheet, a plain account of what a UPS can and cannot do, and a check on where your network gear sits relative to flood water. Power is one chapter of running a practice in this city; our guide to dental IT in New York City covers buildings, carriers, software and support as well.

What kinds of power outages should a dental office in Manhattan, Brooklyn or Queens plan for?

Plan for three: summer heat and peak demand, which NYC Emergency Management says "can cause power outages"; a coastal storm that threatens offices in the city's six evacuation zones; and a building-side outage, either a planned shutdown for electrical work or a fault in the building's own equipment. Each arrives with a different warning and forces a different IT decision.

The table below is the core of the plan. Read across a row when that kind of day starts. The "warning" column describes the kind of notice you usually get, not a forecast, and the timings are deliberately left to you and your provider because they depend on the building, the block and the equipment.

Table 1: Three New York City outages and what each one asks of the office

Three things are true of all three rows. First, the practice decides whether to keep seating patients, not the IT provider and not the utility. Second, the most expensive damage in an outage is usually not the outage itself but an abrupt power loss in the middle of a database write or an image capture. Third, the next morning goes well or badly depending on whether someone knows the order to bring things back.

What should the team do in the first hour without power?

In the first hour, pause new powered clinical work, close whatever is open on screens still lit, report the outage to the utility, make sure patients can still reach you, and set a time to start the clean shutdown. Keep these steps on paper: the shared drive will be dark.

Here is a first-hour card, written to be printed and taped inside the front-desk cabinet. Each line names a role rather than a person, so the card still works on the day the office manager is out.

First-hour card (print this)

1. 1. Front desk lead: pause the waiting room. Tell seated patients what is happening and that the team is checking. Do not start a new procedure that needs imaging or powered equipment until the clinical lead decides.
2. 1. Clinical lead: close what is open. If a screen is still lit on battery, finish or cancel the image capture and save the chart note. An image half-written to a database is harder to recover than one never taken.
3. 1. Office manager: find out whose problem it is. NYC Emergency Management's first suggestion for a home outage applies to an office too: "Check to see if a fuse is blown or a circuit breaker has been tripped." Then ask building management whether the whole building is out, or the block. If only your suite is dark, the cause is inside the building.
4. 1. Office manager: report it to the utility. Con Edison's own instruction is blunt: "Don't assume we already know." Report online on the Con Edison outage page, check status after reporting, and sign up for texts: "Text REG to 688-243 to get started." The NYC Emergency Management page lists Con Edison's 24-hour hotline as 1-800-75-CONED (752-6633). Offices in the Rockaways are served by PSEG Long Island; NYC Emergency Management lists its 24-hour hotline as 1-800-490-0025.
5. 1. Front desk lead: keep the practice reachable. Change the greeting or forward the main number to a mobile phone if your phone system allows it from outside the office. If the phones depend on the office's own power and internet, they stop with the lights; the section on backups and phones below covers what to arrange in advance.
6. 1. Front desk lead: get the day's schedule off the server. A hosted practice system lets the schedule open from any browser; an on-premises one means the front desk reaches for last night's printout, phone numbers included.
7. 1. Office manager: set a decision time. If power is not back by that time, start the shutdown sequence in the next section. Write the time on the card when you set it, so nobody waits indefinitely for a flicker to settle.
8. 1. Office manager: call the IT provider. Tell them the site is down, what is on battery, and when you plan to shut down. Ask them to confirm, from their side, which devices went dark.

Two notes on heat days in particular. NYC Emergency Management asks New Yorkers during "periods of intense electrical usage, such as on hot, humid days" to conserve power, including setting air conditioning "no lower than 78 degrees" and turning off non-essential equipment. In an office, that suggests turning off idle operatory monitors, spare printers and the break-room equipment on the hottest afternoons. And the city's alert service, Notify NYC, sends heat emergency alerts; the extreme-heat page says to "Text 'notifynyc' to 692-692". Put one phone at the front desk on that list.

Which dental office equipment should shut down first in a NYC outage, and in what order should it come back?

Shut down from the edge inward: imaging acquisition first, then workstations, then the practice-management server or the PMS database, and the network last. Bring it back in reverse: network and carrier box, then server and database, then workstations, then imaging. Starting imaging before its database is ready is a common cause of a confused morning.

The order matters because dental software is layered. An imaging program on an operatory PC writes to a database, often on the practice server. Dentrix, Eaglesoft and Open Dental installations with an on-premises server keep the chart and the schedule in a database that does not like being cut off mid-write. A cloud practice-management system such as Curve or Denticon moves the database off-site, which changes the picture: the office's job becomes keeping the browsers and the internet line up, while imaging software and sensors on local PCs still need a clean stop.

Table 2: Shutdown and restart order for a dental office

Two NYC Emergency Management lines belong on this sheet. During an outage: "Disconnect or turn off all appliances that will go on automatically when service is restored. If several appliances start up at once, they may overload electrical circuits." And afterwards: "Turn off or disconnect appliances, equipment, or electronics." In a dental office, that means compressors, vacuum pumps, the autoclave and powered chairs as well as computers. A ragged return of power, sometimes several dips before it settles, is exactly when you do not want everything to start at once.

Write the table above on one sheet with your own device names in place of the generic ones: "Op 3 PC", "pan room PC", "server in the closet behind reception". Ask your IT provider to fill in the exact names and to mark which devices are on a UPS. The sheet belongs in the front-desk cabinet, next to the first-hour card, and in the office manager's email.

Does a NYC dental office need a UPS, and what about a generator in a Manhattan or Bronx building?

Most offices with an on-premises server or imaging PCs benefit from a UPS, an uninterruptible power supply, on the server, the network gear and the imaging acquisition PCs. Its job is a clean shutdown and riding through brief dips, not running the practice through an outage. A generator is a building and electrician decision, governed by local codes.

A UPS is a battery between the wall and a device. When the wall power dips or fails, the device keeps running on the battery for a while, and a well-configured UPS tells the server to shut itself down before the battery is exhausted. On a heat day with repeated flickers, that is the difference between a server that restarts cleanly and one that comes back with a damaged database. How long a given unit will carry a given load depends on the unit, the battery's age and what is plugged in; that is a figure for your IT provider to work out with the equipment in front of them, not a number to take from a page like this one.

Treatment does not continue on UPS power. The compressor, vacuum, chairs, lights and air conditioning are not on it, and in most offices they could not be. Plan for the UPS to buy a calm shutdown, and plan the patient side of the day around the office being dark.

Before buying or replacing a UPS, ask:

• • Which devices are on a UPS today, and which ones should be? (Most offices start with the server, then the network chain, then each imaging PC.)
• • Is the UPS connected to the server so the server shuts itself down when the battery runs low, and has anyone tested that by unplugging the UPS from the wall?
• • When was each battery installed, and is that date written on the unit?
• • Does the UPS alert anyone when it switches to battery, and who receives that alert after hours?
• • Is the carrier's box, which the carrier installed and powers from your outlet, plugged into a UPS too? If not, the internet line goes down at the first flicker even if the firewall stays up.
• • Is the network closet ventilated well enough for battery units in a New York summer? A small closet with no airflow is already the hottest room in many suites.

On generators, NYC Emergency Management's guidance is short and specific: "If using a generator be sure to follow the manufacturer's instructions, local building codes, and ensure that it's in a well-ventilated area." Its winter outage advice adds: "Do not use any gas-powered appliance, such as a generator, indoors." For a dental suite in a multi-tenant building, a generator is a conversation with building management and a licensed electrician, not an IT purchase. Ask building management whether the building has standby power, which systems it serves, and whether tenants may connect to it.

What changes for a dental office in a hurricane evacuation zone, from Lower Manhattan to Staten Island?

Inside one of New York City's six hurricane evacuation zones, a coastal storm can close the office on the city's instruction and put water where the network gear sits. Look the address up in the Zone Finder or call 311, then check how high the server, network closet and carrier equipment sit.

NYC Emergency Management sets out the basis in its own words: "New York City's hurricane contingency plans are based on six evacuation zones." Zones are "areas of the city that may be inundated by storm surge or isolated by storm surge waters", "ranked by the risk of storm surge impact, with zone 1 being the most likely to flood." The page also says "New Yorkers should find out if their homes, offices or schools fall within the boundaries of a city evacuation zone", and points to the Hurricane Evacuation Zone Finder or a call to 311. One distinction trips people up: evacuation zones "should not be confused with flood insurance risk zones, which are designated by FEMA". An office can sit in a zone without being in a FEMA flood zone, or the other way round; check both, and keep them separate in the plan.

The city's instructions come by zone, as a recommendation or an order, and its page warns that "public transportation may shut down hours before the storm". For a practice, that sets the closure decision earlier than the weather alone would. The Zone Finder, not the memory of any one storm, is the planning basis for your address.

Where is your gear relative to the water? (a check for the office manager and building management)

Waterfront neighbourhoods are the obvious places for this table to matter, but the Zone Finder is the authority for your address, not a list on a blog. Ask the questions about the building even if the answer is reassuring: a second-floor suite whose carrier line passes through a flooded cellar is still offline.

Protecting the data itself is the job of the backup, and the national guide to dental backup and recovery services explains how offsite copies are built. The point here is narrower: in a coastal storm, the offsite copy is the only one that is certain to be dry.

How do backups and the phones keep the practice reachable during an outage?

Backups decide whether the practice can work from somewhere else; the phone setup decides whether patients can reach it at all. Before the season, confirm that a current copy of the data is stored away from the office, and that the main number can be forwarded or answered from outside the building when the office is dark.

Two terms from continuity planning are worth one sentence each. The recovery point is how much recent work you could lose: if the last good copy is from last night, today's notes and images are at risk. The recovery time is how long the practice can run without its systems before the damage is serious. Agree both numbers with whoever runs your backups, using the dental backup and disaster recovery checklist as the agenda.

A power plan is also one practical piece of your wider contingency planning for patient records; how it fits that planning is a question for your compliance advisor.

Phones are the other half. NYC Emergency Management's household advice, "It is a good idea to have a phone that does not rely on electricity," translates to an office as: know how the main number reaches a person when the office has no power. If the phones run over the internet, they depend on the carrier box, firewall and switch staying powered. Ask your phone provider how to forward the main number from a mobile phone or a web portal, and test it once before you need it. The line itself is a separate decision; choosing internet for a New York City dental office covers the main line and the backup.

What should be checked before patients are seen again?

Lights returning starts the checks; it does not end them. Before the first patient, confirm internet and network, a clean database start, a test image landing in the correct chart in every operatory, a working pan or CBCT, resumed backups and calls ringing at the front desk. Undo phone forwarding last.

Use this reopening sheet the morning after any outage, planned or not. It assumes the restart order in Table 2 has been followed.

Reopening sheet

• • [ ] Walk first, switch on second. After a storm or a building fault, look at the network closet, the server and the floor around them before powering anything. Water, a smell of burning, or a tripped breaker is a call to building management, not a reboot.
• • [ ] Internet and firewall. The carrier box shows a normal connection; a workstation reaches a website and the cloud PMS if you use one. If the network looks fine but nothing loads, the issue may be the line; what to do when the dental office internet is down explains how to tell the two apart.
• • [ ] Practice-management database. The server is up and the database service has started. One person opens yesterday's last chart and checks the final note is there. If your software offers a database check or repair utility, ask your IT provider whether to run it after an abrupt shutdown.
• • [ ] Imaging. Each operatory PC opens the imaging software; a test capture lands in the correct test chart. Some sensors or imaging programs prompt for calibration or a sensor reconnect after a hard power loss; follow the prompt rather than skipping it. If a bridge between the imaging program and the chart stays broken, the national guide to dental imaging integration troubleshooting and our page on dental software and imaging support in New York City cover the next checks.
• • [ ] Pan and CBCT. The unit powers on as the manufacturer directs and completes a test acquisition that reaches the imaging software.
• • [ ] Backups. The next scheduled backup has run or started. If the outage interrupted a job, ask your provider to confirm the last good copy and its time.
• • [ ] Wi-Fi and printers. Devices reconnect; the front-desk printer prints a receipt.
• • [ ] Phones. A call from an outside phone rings at the front desk. Then, and only then, remove call forwarding and restore the normal greeting.
• • [ ] Equipment that restarts on its own. Compressor, vacuum and autoclave were switched back on one at a time, as the NYC Emergency Management advice suggests.
• • [ ] Log it. Write down the date, how long the outage lasted, what failed and what was slow. That page is the input for next year's plan.

Who handles what in a NYC outage: the utility, the building, the practice or the IT provider?

A power outage involves at least four parties: the utility restores the street, building management handles the building's electrical equipment, the practice decides on patients and staff, and the IT provider watches the systems, guides the shutdown and restart, and checks data and backups. Knowing who owns which step stops the office from waiting on the wrong call.

Table 3: Who owns what during a New York City outage

In Legend's published words: Legend provides 24/7 monitoring, and practices reach a staffed 24/7 helpdesk at 1-800-794-1588. It has in-house engineers; no outsourced first-level triage. Legend is headquartered in Dallas, so the first hour of a New York outage runs through the phone and the monitoring, which is why the shutdown sheet in your cabinet matters. On software, Legend supports the IT environment of these practice platforms: Dentrix, Eaglesoft, Open Dental, Archy; and these imaging systems: DEXIS, Vatech, Carestream, Planmeca/Romexis, Dolphin Imaging.

Legend has served over 3,500 practices since 2004, and its Google profile shows 4.8 rating · 173 Google reviews. Those are company facts; this page does not describe a New York outage Legend has handled for a named practice. If you are comparing providers for an office in Manhattan, Brooklyn, Queens, the Bronx or Staten Island, Legend's page as a dental IT company in New York City sets out its city offer, and the national overview of dental IT support explains what an ongoing arrangement covers.

What stays outside the IT provider's reach is worth saying plainly. No provider restores street power, decides when building management re-energises a riser, or chooses whether your team travels during an evacuation order. A good plan names who does each of those things, so nobody spends the first hour waiting for the wrong phone call. If an outage ever turns out to involve a security problem as well, your state's data-breach rules may apply; check with your attorney.

What to ask your IT provider about power in a New York City office

Bring these questions to your current provider, or to any provider you are considering. Each one should get a specific answer about your office, not a general reassurance.

Sources

• • NYC Emergency Management, Hurricane Evacuation: six evacuation zones, the Zone Finder and 311, and the difference from FEMA flood insurance risk zones. Accessed 2026-10-23.
• • NYC Emergency Management, Utility Disruptions: Con Edison and PSEG Long Island service areas and hotlines, outage steps and generator wording. Accessed 2026-10-23.
• • NYC Emergency Management, Extreme Heat: "Extreme heat can cause power outages" and Notify NYC. Accessed 2026-10-23.
• • Con Edison, Report & Track Service Problems: reporting, status, outage map and text updates. Accessed 2026-10-23.

For a plan written around a different climate, see a storm-season plan written for North Carolina. If your outage plan is part of a move or a new lease, the New York City dental office fit-out IT guide covers where the closet and carrier equipment go before the walls close.