Berman Electric — Long Island electrician

    Best Backup Power Options for Long Island Outages

    6 min readUpdated June 2026

    The best backup power option for Long Island outages depends on how long and how often your power goes out. For long, frequent storm outages, a natural-gas or propane standby generator with an automatic transfer switch is the most reliable — it runs essential or whole-home loads for days. For quiet, instant backup and pairing with solar, a home battery like the Tesla Powerwall is ideal for shorter outages. On a budget, a portable generator wired through a proper manual transfer switch safely powers essentials. The one option to never use is backfeeding a portable generator through an outlet — it's illegal and deadly. We help match the right system to your home.

    Why it matters for Long Island homeowners

    Long Island's exposure to nor'easters and hurricanes means outages are a question of when, not if. The right backup keeps your heat, refrigerator, sump pump, and medical equipment running. The wrong choice — or an unsafe DIY hookup — risks your home and your family. Matching the system to your real outage history is what we do first.

    Your options, ranked by outage type

    Long, frequent outages: standby generator with automatic transfer switch. Short, occasional outages or solar homes: home battery. Budget-conscious essentials-only: portable generator with a properly installed manual transfer switch. Whole-home resilience: a battery plus generator combination.

    Common Mistakes to Avoid

    • Backfeeding a portable generator through a dryer or range outlet — illegal and life-threatening.
    • Undersizing the system for the loads you actually need to keep running.
    • Skipping the transfer switch and risking lineworker safety and your equipment.

    When to Call a Professional

    Any transfer switch or standby system must be installed by a licensed electrician. Never connect a generator to your home without a proper transfer switch.

    Frequently Asked Questions

    What is the best backup power option for Long Island?

    A standby generator with automatic transfer switch is best for long, frequent outages; a home battery is best for quiet, short-outage backup and solar pairing. Many homeowners combine both.

    Can I use a portable generator safely?

    Yes, when wired through a properly installed manual transfer switch. Never backfeed through a wall outlet — it endangers your home and utility workers.

    Talk to a licensed Long Island electrician

    Flexible financing available

    Spread the cost of panel upgrades, EV chargers, and backup power over time. Ask about financing options when you request your estimate.

    Ask about financing
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