Solar Panel Installation in Oyster Bay, NY

The Town of Oyster Bay covers north-eastern Nassau County — Hicksville, Massapequa, Plainview, Syosset, Bethpage, Farmingdale, Jericho, Woodbury, Locust Valley and the north shore villages. ZIP codes here begin 117 and 118. It contains a very large number of incorporated villages, and that is the first thing to establish about any project here.

Which authority permits your address

The town permits its unincorporated areas. But Oyster Bay contains villages including Oyster Bay Cove, Muttontown, Brookville, Old Brookville, Upper Brookville, Matinecock, Mill Neck, Bayville, Centre Island, Cove Neck, Lattingtown, Laurel Hollow, Massapequa Park, Farmingdale and Sea Cliff — many of which issue their own permits under their own rules, and some of which operate architectural review.

Two houses a mile apart can face entirely different processes and timelines. Ask which authority covers your address, whether architectural review applies, and what the current turnaround is based on your installer’s own recent work there.

North shore tree cover

The northern half of the town is heavily wooded with mature trees on larger lots. At the low winter sun angle, shading removes hours of December production that a summer assessment would never reveal.

Insist on an on-site shading assessment and ask what the production model assumes about winter. Where a roof genuinely will not work, the larger north shore properties often have room for a ground mount — an option rarely available in southern Nassau — and community solar is available to anyone.

If tree removal is suggested, treat it as a decision with real cost, sometimes a village permit, and a permanent effect on the property. It should not be quietly assumed into a production estimate.

Two different housing markets

• South of the Expressway — Hicksville, Massapequa, Bethpage, Plainview — is post-war suburban development on modest lots. Usable roof area frequently limits the array, and neighbouring houses shade at low sun angles.
• The north shore — Syosset, Woodbury, Locust Valley, the Brookvilles — has larger houses, larger lots, larger electricity consumption and more trees. Systems here are bigger, which makes the Customer Benefit Contribution a larger number.

The utility numbers

Phase One net metering credits exports at the full retail rate, held for 20 years from interconnection.

The Customer Benefit Contribution is $1.13 per kW-month of DC system size for LIPA in 2026:

• An 8 kW system: $9.04 a month, about $108 a year.
• A 12 kW system: $13.56 a month, about $163 a year.
• A 16 kW system: $18.08 a month, about $217 a year.

Billed on capacity regardless of production and recalculated annually. Mass-market LIPA projects cannot opt into the Value Stack.

Wind load

Wind rather than snow is the Long Island design factor, and it is more demanding near the shore. Ask what load the racking is specified for and who confirmed it.

2026 incentives

The 30% federal credit has ended — section 25D was terminated for expenditures made after 31 December 2025, with an expenditure treated as made when the original installation is completed.

Still available: New York’s 25% credit capped at $5,000 on Form IT-255, which reaches leases and PPAs of ten years or more as well as purchases; the state sales tax exemption; and RPTL 487’s 15-year property tax exemption where the town, your village, the county and your school district have not opted out. Nassau school taxes are a large share of the bill, so check the school district first. The exemption is not automatic: file form RP-487 with the Nassau County Board of Assessors by the January 2 taxable status date, and separately with your village if it does its own assessing.

NY-Sun is not on that list. As of September 2026 NYSERDA has no open NY-Sun block for homes in any utility territory, and on Long Island the last standard residential block closed in April 2016, so an Oyster Bay quote should not show a NY-Sun discount unless the household is approved for Affordable Solar. NYSERDA’s April 2026 NY-Sun Program Manual still lists one home incentive on Long Island that is not tied to a block: the Affordable Solar Residential Incentive of $0.40 per watt for income-qualified homeowners, paid to a participating NY-Sun contractor, who must pass it on in your contract. Ask the contractor to confirm funding is still available. Check NYSERDA’s NY-Sun dashboard for a new one.

Frequently Asked Questions

Who issues a solar permit in the Town of Oyster Bay?

The town permits unincorporated areas, but Oyster Bay contains an unusually large number of incorporated villages — including the Brookvilles, Muttontown, Bayville, Laurel Hollow and Massapequa Park — many of which issue their own permits and some of which operate architectural review.

Is shading a problem on Long Island's north shore?

Frequently. The northern half of the town is heavily wooded with mature trees on larger lots, and the low winter sun angle removes December production that a summer assessment will not show. An on-site shading assessment is essential.

How much is the solar charge on a larger Oyster Bay system?

At $1.13 per kW-month for LIPA in 2026, a 12 kW system pays about $163 a year and a 16 kW system about $217. North shore systems are often larger than the Long Island average, so the charge is more noticeable.

Can I put a ground-mounted array on a north shore property?

On the larger north shore lots it is often possible, which is rarely the case in southern Nassau. A ground mount removes the roof-age question and lets you choose orientation and tilt. Village setback rules apply, so ask early.

This article is general information, not tax, legal or financial advice. Incentive amounts, eligibility rules and deadlines change and depend on your utility, your tax situation and your property. Confirm current terms with NYSERDA, your utility and a qualified tax professional before making a decision.