Texas Power Outage & Backup Power Guide

What knocks out the power in Texas

Heat and cold push demand past supply, triggering rolling blackouts. In Texas, the most outage-prone state — hurricanes on the coast and a grid that failed statewide in 2021.

The state's most-remembered outages include 2021 Winter Storm Uri and Hurricane Beryl 2024 — the kind of multi-hour to multi-day loss that a properly sized standby generator is built to ride through.

Sizing backup power for Texas

A commercial standby generator carries your critical loads the moment utility power drops, with an automatic transfer switch restoring power in seconds. The right size depends on your building's load, voltage and fuel — not the label on the biggest unit available. Two questions decide most installations here: which loads must stay up, and how long the outage lasts.

• Find your generator — answer a few questions and get a specific, right-sized Cat Olympian model.
• Downtime cost calculator — put a dollar figure on an outage in your industry.
• Fuel & runtime calculator — how many hours a tank buys you against a multi-day event.

Backup power rules in Texas

Texas is phasing in facility generator mandates after repeated post-storm heat emergencies in senior care.

• Since 1996, new nursing homes and assisted-living facilities with 17+ residents have needed a generator for life-safety loads — emergency lighting, fire alarm, nurse call, telephones, and medical / life-saving equipment.
• HB 1199 now requires nursing and assisted-living facilities to install operational generators able to power critical areas for at least 72 hours by September 1, 2026 — any fuel type, including natural gas.
• Assisted-living facilities must hold indoor temperatures between 68°F and 82°F during an emergency, with a climate-controlled area of refuge of at least 15 sq ft per non-bedfast resident.
• The Texas Health and Human Services Commission (HHSC) inspects these emergency power sources annually.

Sources: Texas HHS — Generator Availability in NF and ALF (2022) · Texas Tribune — generator requirements for nursing / ALF facilities (2024). Rules change — confirm the current text with the agency and your AHJ before making equipment decisions.

Frequently asked questions

How often does Texas lose power?

Texas's outage risk is extreme, driven mainly by grid strain & extreme temperature. The typical pattern here is: most weather outages in the us.

What size generator does a business in Texas need?

There is no single number — it is set by the loads you must keep running (refrigeration, life-safety, HVAC, IT), your service voltage and phase, and your fuel. Commercial standby units commonly run 20–200 kW. The generator selector and kW ↔ amps converter turn your building into a specific size.

What fuel is best for backup power in Texas?

Where piped natural gas is available it removes on-site fuel storage and refueling during a multi-day outage; diesel gives full independence from the utility but needs stored, rotated fuel. Compare them in natural gas vs diesel.