LED bulbs use 75% less energy than incandescent bulbs — DOE
    Turning off lights when leaving saves $30-50/year per household — ENERGY STAR
    Standby power ('vampire load') can account for 5-10% of home energy use — DOE
    ENERGY STAR certified TVs use 25% less energy than standard models
    Programmable thermostats can save about 10% on heating/cooling — DOE
    Sealing air leaks can save 10-20% on heating and cooling costs — ENERGY STAR
    Heat pumps can reduce heating energy use by 50% vs. electric resistance — DOE
    Ceiling fans allow you to raise AC settings 4°F with no comfort loss — DOE
    Heating water accounts for about 18% of home energy use — DOE
    Low-flow showerheads save 2,700 gallons/year for a family of four — EPA
    Washing clothes in cold water can save $60+/year on water heating — ENERGY STAR
    Fixing a leaky faucet can save 3,000+ gallons/year — EPA
    ENERGY STAR refrigerators use 9% less energy than standard models
    Clean refrigerator coils annually for optimal efficiency — DOE
    Air-drying dishes instead of heat-dry saves 15-50% on dishwasher energy — DOE
    Proper attic insulation can cut heating/cooling costs by 15% — ENERGY STAR
    Windows can account for 25-30% of home heating/cooling energy use — DOE
    Window film can reduce solar heat gain by up to 70% — DOE
    Average US home solar system offsets 3-4 tons of CO₂ annually — EPA
    Solar panel costs have dropped 70%+ over the past decade — SEIA
    EVs cost about 60% less to fuel than gas vehicles — DOE
    Proper tire inflation improves gas mileage by 0.6% on average — DOE
    The average US household spends $2,000+/year on energy — EIA
    ENERGY STAR products have saved Americans $500 billion on energy bills
    LED bulbs use 75% less energy than incandescent bulbs — DOE
    Turning off lights when leaving saves $30-50/year per household — ENERGY STAR
    Standby power ('vampire load') can account for 5-10% of home energy use — DOE
    ENERGY STAR certified TVs use 25% less energy than standard models
    Programmable thermostats can save about 10% on heating/cooling — DOE
    Sealing air leaks can save 10-20% on heating and cooling costs — ENERGY STAR
    Heat pumps can reduce heating energy use by 50% vs. electric resistance — DOE
    Ceiling fans allow you to raise AC settings 4°F with no comfort loss — DOE
    Heating water accounts for about 18% of home energy use — DOE
    Low-flow showerheads save 2,700 gallons/year for a family of four — EPA
    Washing clothes in cold water can save $60+/year on water heating — ENERGY STAR
    Fixing a leaky faucet can save 3,000+ gallons/year — EPA
    ENERGY STAR refrigerators use 9% less energy than standard models
    Clean refrigerator coils annually for optimal efficiency — DOE
    Air-drying dishes instead of heat-dry saves 15-50% on dishwasher energy — DOE
    Proper attic insulation can cut heating/cooling costs by 15% — ENERGY STAR
    Windows can account for 25-30% of home heating/cooling energy use — DOE
    Window film can reduce solar heat gain by up to 70% — DOE
    Average US home solar system offsets 3-4 tons of CO₂ annually — EPA
    Solar panel costs have dropped 70%+ over the past decade — SEIA
    EVs cost about 60% less to fuel than gas vehicles — DOE
    Proper tire inflation improves gas mileage by 0.6% on average — DOE
    The average US household spends $2,000+/year on energy — EIA
    ENERGY STAR products have saved Americans $500 billion on energy bills
    LED bulbs use 75% less energy than incandescent bulbs — DOE
    Turning off lights when leaving saves $30-50/year per household — ENERGY STAR
    Standby power ('vampire load') can account for 5-10% of home energy use — DOE
    ENERGY STAR certified TVs use 25% less energy than standard models
    Programmable thermostats can save about 10% on heating/cooling — DOE
    Sealing air leaks can save 10-20% on heating and cooling costs — ENERGY STAR
    Heat pumps can reduce heating energy use by 50% vs. electric resistance — DOE
    Ceiling fans allow you to raise AC settings 4°F with no comfort loss — DOE
    Heating water accounts for about 18% of home energy use — DOE
    Low-flow showerheads save 2,700 gallons/year for a family of four — EPA
    Washing clothes in cold water can save $60+/year on water heating — ENERGY STAR
    Fixing a leaky faucet can save 3,000+ gallons/year — EPA
    ENERGY STAR refrigerators use 9% less energy than standard models
    Clean refrigerator coils annually for optimal efficiency — DOE
    Air-drying dishes instead of heat-dry saves 15-50% on dishwasher energy — DOE
    Proper attic insulation can cut heating/cooling costs by 15% — ENERGY STAR
    Windows can account for 25-30% of home heating/cooling energy use — DOE
    Window film can reduce solar heat gain by up to 70% — DOE
    Average US home solar system offsets 3-4 tons of CO₂ annually — EPA
    Solar panel costs have dropped 70%+ over the past decade — SEIA
    EVs cost about 60% less to fuel than gas vehicles — DOE
    Proper tire inflation improves gas mileage by 0.6% on average — DOE
    The average US household spends $2,000+/year on energy — EIA
    ENERGY STAR products have saved Americans $500 billion on energy bills
    Active
    Japan
    Windows/Insulation

    先進的窓リノベ2026事業 (Advanced Window Renovation 2026 Program)

    Japan's national subsidy of up to ¥1,000,000 per household for high-performance window insulation retrofits, applied for by registered contractors.

    Available Amount

    up to ¥1,000,000 per household (per the official Ministry of Land, Infrastructure, Transport and Tourism campaign documents)

    Start Date

    31 March 2026

    End Date

    31 December 2026 (applications close earlier if the budget is exhausted)

    Eligibility

    Any household renovating an existing home with eligible registered products installed by a registered "window renovation contractor" (窓リノベ事業者). Consumers cannot apply directly — the contractor submits the application.

    Eligible Upgrades & Scope

    High-performance insulating window retrofits: inner window (内窓) installation and outer window replacement using registered products. Doors renovated under the same contract as windows are also covered.

    Run by the Ministry of the Environment as part of the national 住宅省エネ2026キャンペーン (Home Energy Saving 2026 Campaign), this program subsidises window insulation retrofits in existing homes. Covered work includes fitting inner windows inside existing frames and replacing outer windows with high-performance units; doors done under the same renovation contract qualify too. Only products registered under the program count, and the work must be done by a registered window renovation contractor. The program's budget is ¥112.5 billion.

    Eligibility basics

    Unlike some Japanese housing subsidies, this one is not limited to families with children — all households renovating an existing home can use it. The hard requirements are on the work, not the applicant: registered products, a registered contractor, and an existing (not new-build) home. The contractor, not the homeowner, files the subsidy application through the campaign portal.

    Incentive amounts

    The subsidy is up to ¥1,000,000 per household, scaled to the performance grade and size of the windows installed. Because applications close when the budget runs out, timing matters: the official program site publishes a daily budget-use meter. The campaign portal confirms the program is one of four 2026 subsidy streams and that delivery applications (including reservations) close once each stream's budget is exhausted.

    How to apply

    Find a registered window renovation contractor — the campaign site has a search tool for businesses that handle subsidy applications. The contractor assesses the windows, confirms the products are registered, does the work, and submits the delivery application on your behalf. The application window runs from 31 March 2026 to 31 December 2026, with application reservations closing on 16 November 2026.

    Important notes

    You cannot apply as an individual — if your contractor is not registered under the program, the work won't qualify, so confirm registration before signing. New-build homes are not covered; this is a renovation program. National subsidies cannot be combined with other nationally funded support schemes for the same work. Program details change — verify current rules on the official program page before applying.

    Ready to Apply?

    Visit the official program website to check your eligibility, find application forms, and get the most up-to-date information.

    Visit Official Program Site

    Other Programs You May Qualify For

    Active

    Net Zero Energy House (ZEH) Support Program (Japan)

    National subsidies for building or purchasing newly constructed net-zero energy residential homes in Japan.

    Up to 1,000,000 JPY per house

    Active

    Kyutoki (Water Heater) Subsidy (Japan) 2026 Tool

    Government grants encouraging the replacement of old boilers with high-efficiency residential heat pumps (EcoCute).

    Up to 150,000 JPY

    Important: Educational Purposes OnlyThe guides, tools, cost estimates, and ROI calculators provided on EnergyBS.com are for informational and educational purposes only. They do not constitute certified financial, tax, or professional engineering advice. Energy costs, government rebates, and installation fees vary significantly by location and are subject to change. Always consult with certified local professionals before undertaking home energy projects or making financial commitments.