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#energyefficiency — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #energyefficiency, aggregated by home.social.

  1. Heat Recovery Ventilator (HRV) — Operating Principle

    A recuperator (heat recovery unit) transfers heat from exhaust air to incoming fresh air without mixing the two streams.

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    How It Works

    Two airflows:

    Exhaust air (warm, from indoors)

    Supply air (cold, from outside)

    They pass through a heat exchanger:

    separated by plates or channels

    no direct mixing

    heat transfers through the material (conduction)

    Result: → supply air is preheated
    → exhaust air is cooled
    → overall heat loss is reduced

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    Types of Recuperators

    1. Plate Heat Exchanger

    aluminum or plastic plates

    efficiency: ~60–90%

    no moving parts

    2. Rotary (Wheel) Heat Exchanger

    rotating drum

    transfers heat and some moisture

    efficiency: up to ~85–90%

    3. Counterflow Heat Exchanger

    air streams move in opposite directions

    highest efficiency: up to ~95%

    ---

    What Is Transferred

    heat (primary)

    sometimes moisture (in enthalpy units)

    ---

    Efficiency Example

    outside: 0°C

    indoor: +22°C

    after recovery: ~16–20°C

    ---

    Advantages

    reduced heating energy demand

    continuous ventilation without major heat loss

    improved indoor air quality

    ---

    Limitations

    frost formation in winter (needs bypass or preheater)

    filter maintenance required

    upfront cost

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    Core Idea

    A recuperator doesn’t generate heat — it recovers and reuses it.

    #HVAC #HeatRecovery #HRV #ERV #EnergyEfficiency #Ventilation #IndoorAirQuality #AirExchange #HeatExchanger #SustainableLiving #GreenBuilding #EnergySaving #HomeComfort #SmartHome #BuildingEngineering #ClimateControl #EcoTech #Airflow #FreshAir #LowEnergy #PassiveHouse #NetZero #HomeImprovement #Engineering #CleanAir

  2. ⚡ The European Commission proposes a new rating scheme for data centres. From Aug 2027, facilities will be labelled A–G based on energy & water efficiency. 💬 Have your say by 23 April: ec.europa.eu/info/law/better-r

    #EnergyEfficiency #WaterUse #Digitalisation #Sustainability

    ⚡ The European Commission proposes a new rating scheme for data cen...
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    nitter.net/EUEnvironment/statu

  3. Moldova’s EcoImpact Program: TVET Schools Lead Green Skills & Sustainability – News and Statistics

    Apr 3, 2026 According to ILO News, a national grants program called EcoImpact is enabling technical and vocational…
    #Moldova #MD #Europe #Europa #EU #Circulareconomy #EcoImpact #Energyefficiency #greenskills #greentransition #Recycling #sustainabilityprojects #TVET #vocationaleducation
    europesays.com/2893345/

  4. On #EarthHour, let’s highlight the importance of lowering our energy consumption ⚡️

    #SavingEnergy and improving #EnergyEfficiency is not only helping the climate by reducing the need for polluting fossil fuels, it also contributes to taming your energy bill. Every hour⌛️
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    nitter.net/Energy4Europe/statu

  5. Modular Contactors & Sensors: The "Invisible Butlers" of Modern Automation

    Lighting Control: Occupancy sensors trigger the contactor to switch on entire zones only when needed, saving up to 30-50% in energy costs. How They Work with Sensors:
    ModularContactor #ElectricalEngineering #IndustrialAutomation #SmartHomeTech #HVACControl #EnergyEfficiency #ElectricalSwitchgear #AutomationSolutions #DINRail #PowerManagement #ElectricianLife #SensorTechnology

  6. Slow software costs time, nerves and electricity. Powerful IT is not a luxury, but a prerequisite for smooth operations.
    OpenCloud consistently focuses on efficiency: developed entirely in Go, without interpreters or SQL databases – for consistently fast responses, even under load.

    👉 Download the whitepaper ‘Maximum performance with minimum energy requirement’ now: opencloud.eu/en/maximum-perfor

    #OpenCloud #EnergyEfficiency #DigitalSovereignty #ITInfrastructure #OpenSource

  7. People make a difference! Both positive and negative. Through conscious and conscientious stewardship, humanity can be the positive influence our shared planet needs. Be the change you want to see in the world.

    youtu.be/Fs-Phn9v-jI

    #SustainableRetrofit #GreenBuilding #EcoHomes #EnergyEfficiency #SustainableDesign #BuildingForFuture #ClimateAction #HomeImprovement #EcoRenovation #Sustainability

  8. Exciting news in the world of LED lighting! 💡✨ Stay up to date with the latest trends and innovations in energy-efficient lighting. #LEDlighting #energyefficiency #sustainability #innovation 🌟🔆 Let's light up the world with LED technology! 💡💚 #lightingdesign #ecofriendly #savemoney #brightideas

  9. Exciting news in the world of LED lighting! 💡✨ Stay up to date with the latest trends and innovations in energy-efficient lighting. #LEDlighting #energyefficiency #sustainability #innovation 🌟🔆 Let's light up the world with LED technology! 💡💚 #lightingdesign #ecofriendly #savemoney #brightideas

  10. Exciting news in the world of LED lighting! 💡✨ Stay up to date with the latest trends and innovations in energy-efficient lighting. #LEDlighting #energyefficiency #sustainability #innovation 🌟🔆 Let's light up the world with LED technology! 💡💚 #lightingdesign #ecofriendly #savemoney #brightideas

  11. Exciting news in the world of LED lighting! 💡✨ Stay up to date with the latest trends and innovations in energy-efficient lighting. #LEDlighting #energyefficiency #sustainability #innovation 🌟🔆 Let's light up the world with LED technology! 💡💚 #lightingdesign #ecofriendly #savemoney #brightideas

  12. Exciting news in the world of LED lighting! 💡✨ Stay up to date with the latest trends and innovations in energy-efficient lighting. #LEDlighting #energyefficiency #sustainability #innovation 🌟🔆 Let's light up the world with LED technology! 💡💚 #lightingdesign #ecofriendly #savemoney #brightideas

  13. Exciting news in the world of LED lighting! 💡🌟 Stay ahead of the game with the latest innovations and trends in energy-efficient lighting. #LEDlighting #energyefficiency #sustainability #innovation #lightingdesign 🌍✨ Let's light up the world together! 💡💚 #GoGreen #BrightIdeas