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
    General

    給湯省エネ2026事業 (Water Heater Energy Saving 2026 Program)

    Japan's national subsidy of up to ¥170,000 per unit for high-efficiency water heater installations, applied for by registered contractors.

    Available Amount

    up to ¥170,000 per unit (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

    Households installing eligible high-efficiency water heaters. As with the other campaign streams, the registered housing contractor — not the consumer — submits the application.

    Eligible Upgrades & Scope

    Installation of high-efficiency water heaters (高効率給湯器) in new builds and renovationsusing registered products.

    Run by the Ministry of Economy, Trade and Industry 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 high-efficiency water heaters (高効率給湯器) — the category that includes heat-pump EcoCute units, hybrid water heaters and Ene-Farm fuel cell systems where registered. It applies to both new-build homes and renovations. Only products registered under the program qualify, and the program's budget is ¥57 billion.

    Eligibility basics

    Any household installing an eligible high-efficiency water heater can benefit — the campaign is open to all households, not only families with children. The requirements attach to the equipment and the installer: the unit must be a registered product, and the application must be filed by the registered housing business contracted for the work. Consumers do not apply directly.

    Incentive amounts

    The subsidy is up to ¥170,000 per unit, varying with the equipment type and efficiency grade. As with the other 2026 campaign streams, applications close when the budget is exhausted, so the official program site's published application status is worth checking before committing to a purchase.

    How to apply

    Engage a housing contractor registered under the campaign — the campaign portal provides a search tool for businesses that handle subsidy applications. The contractor confirms the chosen water heater is a registered product, carries out the installation, and files the delivery application through the housing energy-saving portal. The application window runs from 31 March 2026 to 31 December 2026.

    Important notes

    Confirm both the product registration and the contractor's registration before work starts — unregistered combinations don't qualify. National subsidies cannot be stacked with other nationally funded support for the same equipment. Details here are drawn from the official MLIT campaign documents; the program's own site (kyuto-shoene2026.meti.go.jp) was verified live at the time of research. 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.