Our Top Picks: Best Backup Generators in 2025

Based on runtime, fuel options, noise, ease of use, and overall reliability, here are our favorites:

Review In-depth Product

Generac Guardian 18kW Standby Generator (Model 7228)

Why You Should Get It: Automatic, dependable, and seamless

Keep in Mind: Requires professional installation


This unit turns on within seconds of a power outage. We've installed this in multiple suburban homes—easily powers AC, heat, fridge, sump pump, and more. Operates at 67 dB, integrates with Generac’s mobile app for real-time monitoring, and runs on natural gas or propane.

 

DuroMax XP13000HX 13kW Dual Fuel Generator

Why You Should Get It: Flexible, high-power, and cost-effective

Keep in Mind: Louder than inverter models


Great for users who want serious backup without committing to a whole house standby system. It handles 10,500 running watts (13,000 surge), easily powering major appliances and lights. Runs about 8.5 hours at 50% load on gas. Electric start and CO alert are major pluses.

 

Honda EU7000iS Inverter Generator

Why You Should Get It: Super quiet and fuel-efficient

Keep in Mind: High price tag


We love this for backup power in neighborhoods where noise matters. It runs at just 52–58 dB and delivers clean power ideal for sensitive electronics. One tank (5.1 gallons) lasts around 6.5–16 hours depending on load. Electric start, wheels, and legendary Honda reliability included.

 

Westinghouse WGen7500 Portable Generator

Why You Should Get It: Affordable and reliable for essential backup

Keep in Mind: Not inverter clean power


This is the workhorse we recommend to homeowners on a budget. 7,500 running watts (9,500 surge), electric start, and runs 11 hours at 50% load. It easily runs your fridge, lights, router, and more during shorter outages. A transfer switch kit is recommended for home integration.

 

EcoFlow Delta Pro Portable Power Station

Why You Should Get It: Clean, silent, and solar-ready

Keep in Mind: Higher upfront cost, but no fuel needed.


This one’s for those looking for an eco-conscious backup solution. With a 3.6kWh capacity (expandable) and 3,600W output, it powers key appliances and can recharge via solar. We've used it during outages to power fridges, routers, lights, and even microwaves—completely silent and emission-free.

Key Backup Generator Features to Consider

  • Power Output: Match watts to your must-run appliances (fridge, lights, sump pump, HVAC).

  • Fuel Type: Gasoline, propane, or dual fuel for flexibility. Solar options are emerging too.

  • Noise Level: Inverter models are quietest; conventional models are louder but cheaper.

  • Start Type: Electric start and auto-start features are worth it during emergencies.

  • Portability vs. Permanence: Portable models are flexible; standby units are automatic and seamless.

  • Maintenance Needs: Check oil and filters regularly—some models offer reminders and alerts.

Editor Recommendation

The Generac Guardian 18kW is the best all-around choice for homes needing automatic power without compromise. On a budget or need portability? The DuroMax XP13000HX is reliable and flexible. For the quietest experience, the Honda EU7000iS is unmatched, and if you're going green, the EcoFlow Delta Pro delivers next-gen performance.

Conclusion

The best backup generator in 2025 is the one that fits your power needs, space, and budget. Whether you want full home coverage or just enough juice to keep the basics running, each of these generators has proven itself in the field. With the right unit, you can stop worrying about the next outage and start planning like a pro.