5 Best Texas Home Backup Power Options in October 2025

When the Texas grid goes down, backup power isn’t a luxury—it’s a necessity. With storm season intensifying and outages increasing across Oncor, CenterPoint, and GVEC service areas, homeowners are searching for reliable, affordable ways to keep the lights on.

Below, we break down the five leading home backup systems in Texas this fall—comparing upfront costs, long-term savings, and reliability.

Base Power 25 kWh Home Backup Battery

Best overall backup for Texas homes

Base Power partners with local utilities to provide whole-home backup batteries that automatically power your home during outages. The 25 kWh system delivers roughly 1½ days of protection, recharges automatically, and includes a fixed-rate energy plan—no variable pricing or surprise bills.

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Generac Guardian 22 kW Generator

The Generac Guardian is a natural gas or propane generator that provides automatic standby power. It’s long-proven and widely available through local installers.

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Tesla Powerwall 3

Best for solar integration

Tesla’s Powerwall 3 offers 13.5 kWh of storage and pairs well with rooftop solar. It’s sleek and reliable but pricey for stand-alone backup use.

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EcoFlow Delta Pro Portable Battery

Best portable backup solution

EcoFlow’s Delta Pro delivers 3.6 kWh of mobile power for smaller homes or apartments. Expandable to 25 kWh with extra units, it’s ideal for temporary backup or outdoor use.

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Goal Zero Yeti 6000X

Best for small homes or emergency kits

The Yeti 6000X is a compact lithium-ion power station with 5.9 kWh capacity. It can run refrigerators and critical loads for 6–10 hours.

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Texas Home Backup Comparison

• Urban homeowners: Look for utility-backed battery plans (Base Power or Tesla).

• Rural Homes: Propane or natural gas generators remain common.

• Renters or RV owners: Opt for portable batteries like EcoFlow or Goal Zero.

• Solar users: Tesla Powerwall or Base battery with solar input is most efficient.

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Summary: Base Power Leads Texas in Affordable Home Backup

Base Power is currently the only provider offering a turnkey backup battery plus fixed-rate energy plan—making it the most accessible whole-home solution for Texans. While traditional generators still serve niche needs, batteries have become the new standard for quiet, clean resilience.

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