Rebate Stacking Calculator · New York

How Much Can You Stack in Islip? Heat Pump + Solar + Insulation Rebates

Islip homeowners can combine multiple rebate programs on the same project. Here's what actually stacks, with real dollar figures from our Islip rebate guide — nothing estimated.

$15,200
Max combined stack
6/8
Open categories
68
PowerScore

Worked stacking examples for Islip

These use the exact dollar figures published on the Islip rebate guide. If a category isn't listed, it's because Islip doesn't currently have an open program with a published amount — we don't fill that in with a guess.

Heat pump + solar + insulation

Insulation$6,250
Combined total$6,250

Islip does not currently have an open, quantified rebate for heat pump, solar in our data, so it is left out of this total rather than estimated.

The two biggest Islip rebates, stacked

Insulation$6,250
Water Heater$6,250
Combined total$12,500

Every open Islip rebate combined

Insulation$6,250
Water Heater$6,250
Windows & Doors$2,000
EV Charger$400
Battery Storage$200
Smart Thermostat$100
Combined total (6 programs)$15,200

Every category, Islip

The full breakdown behind the totals above.

🔥 Heat Pump$11,000   Not available
🌡️ Insulation$6,250   Open
☀️ Solar—   Not available
🔋 Battery Storage$200   Open
💧 Water Heater$6,250   Open
🌡️ Smart Thermostat$100   Open
🚗 EV Charger$400   Open
🟫 Windows & Doors$2,000   Open

FAQ for Islip homeowners

How much can a Islip homeowner get for heat pump + solar together?

Combining heat pump and solar in Islip adds up to $0 based on the open programs we track, before adding any other category.

What's the maximum rebate stack available in Islip?

Adding up every open, quantified rebate category we track for Islip comes to $15,200 across 6 of the 8 categories.

Are all these Islip rebates available at the same time?

They come from different programs (federal, provincial or state, utility, and municipal), so most homeowners can combine several in the same renovation project. Always confirm current stacking rules with each program before you apply, since eligibility and funding caps can change.

Which rebate categories are NOT currently available in Islip?

Based on our data, Islip does not currently have an open rebate with a published dollar amount for: Heat Pump, Solar. This can change as programs launch or funding resets, so we recheck city pages regularly.

How this stack is calculated

Every dollar figure above comes straight from the Islip rebate guide's published program amounts — the same numbers used to compute Islip's PowerScore of 71/100. We only count a category toward the combined total when it's an open program with a real published dollar value; categories with no open program, or no published amount, are shown as unavailable rather than estimated.

Want your own custom combination? Use the interactive calculator on the hub page to check-box any mix of categories across any city we cover.

See the full Islip rebate guide

Every program explained in plain language, income tiers, local context, and a free assessment tool.

Open the Islip guide →
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