Power Outages: How to Protect Your Small Business

Blackouts have been drawing a lot of searches in the US, and storm and wind warnings have been in the news across the UK. When the lights go out, a small business can lose sales, data and stock within hours. This checklist walks you through a simple power outage plan covering safety, data, payments, food, communication and insurance, so the next outage is an inconvenience rather than a crisis.

Power cuts come in many forms. Some last a few minutes and cause little more than a reset of the clocks. Others follow storms and keep a street dark for a day or more. For a cafe, a shop, a salon, a small office or a workshop, even a short outage can mean lost sales, a frozen card terminal, unsaved files and a freezer full of stock you are not sure you can sell.

The businesses that cope best are not the ones with the most expensive equipment. They are the ones that have thought through the basics, written them down and told their team. This guide gives you that plan in checklist form.

A quick note: this article is general information, not legal, insurance or electrical advice. For electrical work, generator installation or insurance questions, talk to a qualified electrician, your insurer or a broker.

Safety first when the power goes out

Before you think about sales or stock, make sure everyone on your premises is safe.

• Check people first. Make sure staff and customers are safe, especially on stairs, in storerooms and in windowless rooms.
• Use flashlights, not flames. Keep battery flashlights or rechargeable lights where staff can find them in the dark. Candles add a fire risk, especially in busy spaces.
• Never run a generator indoors. Generators produce carbon monoxide, which you cannot see or smell. Never run one inside your premises, in a garage or in any enclosed space.
• Switch off sensitive equipment. Turning off or unplugging equipment you do not need can help protect it when the power comes back.
• Stay away from fallen power lines. After a storm, keep everyone well away from damaged lines and report them to your utility.

Protect your data and equipment

Losing a day of sales is painful. Losing your customer records, accounts or project files is far worse. Two simple layers of protection cover most small businesses.

Backups

Make sure your important files are backed up automatically, ideally to more than one place, such as a cloud service and an external drive. Check that backups actually run and that you know how to restore a file. Many businesses discover their backup stopped months ago only when they need it.

A UPS for key equipment

An uninterruptible power supply (UPS) is a battery unit that keeps equipment running for a short time when the power drops. It gives you enough time to save work and shut down safely, and it also smooths out power surges. Put your most important equipment on a UPS: the computer or server that holds your records, your router and, where it makes sense, your point-of-sale setup.

A UPS is not designed to run your business through a long outage. It buys you minutes, not hours, so use that time to save, close and shut down properly.

Keep taking payments

If your card terminal, till or internet connection runs on mains power, an outage can stop sales instantly. Plan your backup before you need it.

• Keep a cash float. A small float of notes and coins lets you keep trading with customers who have cash.
• Know your card options. Check whether your card provider offers a battery-powered or mobile card reader, and whether it can work over a mobile data connection. If your terminal has an offline mode, ask your provider about its limits and the risk of payments being declined later.
• Have a manual sales record. Keep a paper sales log by the till so you can record items, amounts and payment methods to enter into your system later.
• Use invoices for regular customers. For trade customers or regulars, you may be able to send an invoice or a payment link once the power is back.

After the outage, reconcile your paper log, card reader records and cash against your till system so your books stay accurate.

Food safety for fridges and freezers

For cafes, bakeries, grocers and any business with chilled or frozen stock, food is often the biggest outage cost.

• Keep doors closed. Every time you open a fridge or freezer, cold air escapes. Keep doors shut as much as possible during an outage.
• Note the time. Record when the power went off and when it came back. That information matters for food safety decisions.
• Check temperatures. If you have thermometers in your units, record the readings when the power returns.
• Discard food according to food safety rules. Follow the guidance from your food safety authority on when chilled or frozen food must be thrown away. When in doubt, throw it out.
• Record what you discard. Write down products, quantities and values. You may need this for insurance claims and your accounts.

Communicate with staff, customers and your utility

Clear communication stops an outage from turning into confusion.

Staff

Decide in advance who makes the call on staying open, closing early or sending people home. Keep an up-to-date list of staff phone numbers that does not depend on your office computer, and agree on how you will reach everyone, such as a group message. Tell staff who to contact if an outage happens before their shift.

Customers

Put a clear sign on the door if you close or can only take cash. Update your online listings and social media with your opening status, and let customers with bookings or orders know about any changes. A short, friendly message builds goodwill.

Your utility

Keep the contact details for your electricity supplier and the network company that manages local power lines in your plan, along with your account and meter numbers. Report the outage and check their updates for estimated restoration times.

A simple outage contact template

Copy this table into your plan and print a copy to keep somewhere easy to find. The entries below are made up for illustration only.

Check your insurance

Insurance can soften the financial hit of an outage, but only if your policy covers the situation. Business interruption cover is designed to help with lost income after an insured event, but whether a power outage is covered usually depends on the policy wording, including what caused the outage and where it happened.

• Read your policy for sections on business interruption, spoiled stock and equipment damage.
• Note any waiting periods, limits or conditions.
• Ask your insurer or broker directly: "Would I be covered if a storm cut power to my premises for two days?"
• Keep records of lost sales, discarded stock and extra costs during any outage.

Turn it into a written outage plan

Bring everything together in a short document. If you already have a business continuity plan, add a power outage section to it; if not, our guide to writing a continuity plan in a weekend can help you build the wider plan later.

1. List your critical equipment. Note what stops working without power: tills, card readers, routers, fridges, freezers, computers, lights and alarms.
2. Decide your backups. Choose a cash float, a backup card option, a UPS for key equipment and a backup routine for data.
3. Write the first-hour steps. Safety checks, shutdown order, fridge and freezer rules and who decides on opening.
4. Build your contact list. Utility, payment provider, insurer, key suppliers and staff.
5. Prepare customer messages. A door sign and a short online update you can adapt.
6. Store copies offline. Print the plan and keep a copy on a phone, not just on your office computer.
7. Brief your team and review. Walk staff through the plan and review it every year, or after any outage.

Frequently asked questions

The bottom line

A power outage plan does not need to be complicated. Keep people safe, never run generators indoors, protect your data with backups and a UPS, have a backup for payments, protect food by keeping doors closed and following food safety rules, and know what your insurance covers. A clear contact list and simple messages for staff and customers tie it all together.

Spend an hour this week working through the checklist and printing your plan. When the next storm warning appears, you will be able to focus on your customers instead of scrambling for a flashlight.