Top-Rated Home Battery Installers in Oyster Bay, NY

4 local companies ranked by 1,943 Google reviews. Free to compare, no sign-up.

Ratings and review counts from Google Maps, collected September 2026 · Page updated October 24, 2026

4Companies
1,943Google reviews
4.6★Average rating
Sep 2026Data collected
Ranked by Google reviewsNot paid forFree to compare

Short answer: The top-rated home battery installers in Oyster Bay are NY State Solar (4.8★, 1,148 reviews), Tesla Energy - Long Island, NY (4.6★, 11 reviews), Sunshine Solar Technologies, Inc. (4.4★, 13 reviews).

Home Battery installers in Oyster Bay, ranked

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  1. NY State SolarTop pickMost reviewsAlso installs solar
    4.8 (1,148 Google reviews)
    385 W John St Unit 100, Hicksville, NY 11801
  2. 4.6 (11 Google reviews)
    15 Grumman Rd W, Bethpage, NY 11714
  3. 4.4 (13 Google reviews)
    100 Lauman Ln, Hicksville, NY 11801
  4. Momentum Solar New YorkAlso installs solar
    4.4 (771 Google reviews)
    45 Fairchild Ave Ste b, Plainview, NY 11803

Together these 4 companies average 4.6★ across 1,943 reviews. NY State Solar has the most reviews (1,148).

Ranked by Google rating weighted by review count, collected September 2026. Rankings are not paid for. How we rank and how we make money.

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What a home battery costs in Oyster Bay

Typical installed priceVaries by battery

Price depends on the brand, how much storage you want, and whether you need a panel upgrade. Ask for the price per usable kWh so quotes are easy to compare.

Rebates open in Oyster BayNone confirmed right now

Financing or future programs may still help. Check the rebate page before you sign.

Rebates: our verified program data, checked monthly. Always confirm the exact amount for your home.

Talk to a home energy auditor first. Some utility programs want an audit before any work starts. See the top-rated home energy auditors in Oyster Bay.

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Which battery should you ask about?

Most home installers work with a few brands. Compare usable storage (kWh), how much power it can deliver at once (kW), whether it works in an unheated garage, and the warranty. Our side-by-side guides cover the Tesla Powerwall 3, Enphase IQ Battery 5P, Eguana Evolve and FranklinWH aPower 2. Compare home batteries.

Before you hire a home battery installer

  1. Ask for the usable storage (kWh) and the continuous power (kW), and which circuits it will keep running in an outage.
  2. Ask whether the battery is on your rebate program's approved list. Brands not on the list get no rebate.
  3. Ask where it will go. Some batteries lose capacity or stop charging in a cold garage.
  4. Ask about the warranty: years, and how much capacity it keeps by the end.

Questions about home battery installers in Oyster Bay

Who is the best home battery installer in Oyster Bay?

Based on Google reviews, the top-rated home battery installers in Oyster Bay are NY State Solar (4.8★, 1,148 reviews), Tesla Energy - Long Island, NY (4.6★, 11 reviews), Sunshine Solar Technologies, Inc. (4.4★, 13 reviews). We rank by a review-weighted score, so companies with many strong reviews rank above those with only a few.

How are the home battery installers in Oyster Bay ranked?

We list 4 home battery companies in Oyster Bay, ranked by Google rating weighted by review count. Together they have 1,943 Google reviews and average 4.6 stars, collected September 2026. NY State Solar has the most reviews (1,148). No company pays to be listed or ranked.

How much does a home battery installation cost in Oyster Bay?

Battery prices depend on the brand, how much storage you want, and whether you need a panel upgrade. Ask for the price per usable kWh so quotes are easy to compare.

Are there rebates for home batteries in Oyster Bay?

We have no confirmed open home battery rebate for Oyster Bay right now. Financing or future programs may still help, so check the rebate page before you sign.

What should I ask a home battery installer before I hire?

Ask for the usable storage (kWh) and the continuous power (kW), and which circuits it will keep running in an outage. Ask whether the battery is on your rebate program's approved list. Brands not on the list get no rebate. Ask where it will go. Some batteries lose capacity or stop charging in a cold garage.

Before you call anyone, check what home battery rebates you can get in Oyster Bay. Many programs require approval or a registered contractor before work starts.

Planning more upgrades? See the top-rated heat pump installers, solar installers, home energy auditors in Oyster Bay.

How to read these results

  1. Open the profile.How a installer describes its own work tells you a lot. Look for jobs like yours.
  2. Read the Google reviews.Stars and counts come from Google Maps. Click through and read what past customers wrote, good and bad.
  3. Check for program badges.A green registered-contractor badge means the company is on the program's own list, which some rebates require.
  4. Compare three.Do not stop at the first good installer. Three quotes show you the real range in price, equipment and plan.

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