48 Energieeffizienzmaßnahmen für Gebäude
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48 Maßnahmen gefunden
Beleuchtung3 Maßnahmen
LED Retrofit for Indoor Lighting
Replacing incandescent, halogen, fluorescent tubes and compact fluorescent lamps with LEDs (lamps or complete luminaires).
LED Retrofit for Outdoor and Street Lighting
Replacing high-pressure mercury vapour, sodium vapour or halogen outdoor luminaires with LEDs.
Occupancy and Daylight Control for Lighting
Lighting switches or dims automatically according to occupancy and daylight levels.
Erneuerbare4 Maßnahmen
PV System for On-Site Electricity Generation
Roof-integrated or elevated PV system for on-site generation, with inverter and optional storage.
Battery Storage to Raise PV Self-Consumption
Lithium-ion storage (LFP) raises PV self-consumption from around 30 % to 60-80 %.
Renewable Energy Community (REC) — Neighbourhood PV Sharing
Several buildings, flats or businesses join forces to share PV, heat pump and storage energy — cutting grid charges and maximising self-consumption.
Tenant Electricity Model (Shared Generation Plant)
A rooftop PV system supplies tenants directly with low-cost solar power, bypassing the public grid — tenants pay a reduced tariff, the landlord earns stable returns.
Gebäudeautomation5 Maßnahmen
Building Automation Class A (EN ISO 52120)
Upgrading the building automation system from Class C/D to Class A, the highest efficiency level.
Energy Monitoring + Submetering (e.g. EDM Toolbox)
Building an energy capture system with sub-meters per consumer or zone and continuous monitoring — the data foundation for every further measure.
Wallbox Charging Management with PV Surplus and Load Balancing
Intelligent control of the wallbox — charges primarily from PV surplus, respects the grid connection load limit and distributes across multiple vehicles.
VDI 3807 / EN 16247 Benchmarking — Continuous Consumption Indicators
Systematically deriving and publishing consumption indicators (kWh/(m²·a), kWh/bed, kWh/meal) per VDI 3807 — makes efficiency potential visible across a portfolio.
Bidirectional Charging (V2H / V2G)
The EV battery serves as a feed-back-capable store for the building or the grid — dramatically higher self-consumption and dynamic tariff arbitrage.
Gebäudehülle11 Maßnahmen
Facade Insulation (ETICS or Ventilated Rainscreen)
Applying an insulation layer to the external wall — either a conventional external thermal insulation composite system or a ventilated rainscreen facade.
Internal Wall Insulation
Applying the insulation layer on the room side — the option where external insulation is ruled out by heritage protection, lack of space or an articulated historic facade.
Insulating the Top Floor Ceiling / Loft
Applying insulation to the top floor ceiling where the loft is unheated — the simplest and most cost-effective insulation measure.
Basement Ceiling Insulation (from Below)
Insulating the underside of the ceiling above an unheated basement — a quick, low-cost measure with a comfort gain (warmer ground floor floors).
Window Replacement (Triple Glazing)
Replacing old single- or double-glazed windows with modern triple glazing in a thermally broken frame.
Box Window Refurbishment (Inner Sash with Insulating Glazing)
Keeping the historic outer sash, replacing the inner sash with double or triple glazing and improving the seals.
Pitched Roof Insulation (Above or Between Rafters)
Insulating a converted loft either above the rafters (when re-roofing) or between them (from inside).
Airtightness Refurbishment (Blower Door Optimised)
Sealing leaks in the building envelope — window-to-masonry junctions, sockets, cable and pipe penetrations, and vapour barrier laps.
Perimeter Insulation (External Basement Wall, Below Grade)
Externally insulating the earth-contact basement wall with moisture-resistant XPS or foam glass — usually carried out alongside drainage work.
Flat Roof Insulation (Warm Roof)
Adding an insulation layer to the existing flat roof — usually in the course of renewing the waterproofing.
Cavity Wall Insulation (Blown-In)
Filling the air gap in a cavity wall with loose insulation granulate (mineral wool, cellulose, perlite) — no change to the facade appearance.
Heizung14 Maßnahmen
Heating Replacement: Oil Boiler to Heat Pump (Air or Brine to Water)
Replacing an oil- or gas-fired heating system with an electric heat pump. Cuts final energy substantially (factor 3-4) and eliminates fossil fuel entirely.
Heating Replacement: Gas/Oil Boiler to Pellet Boiler
Replacing a fossil-fired heating system with a modern pellet boiler. Substitutes fossil fuel with carbon-neutral wood.
Replacing a Standard Boiler with a Gas Condensing Boiler
Replacing an old constant- or low-temperature boiler with a modern condensing boiler that recovers flue gas heat.
Connection to District Heating
Connecting to a district heating network — an existing heat source (CHP, waste heat, biomass, geothermal) is used and no on-site boiler is needed.
High-Efficiency Heating Circulation Pump (EEI ≤ 0.20)
Replacing old heating pumps (often 60-100 W constant) with electronically controlled high-efficiency pumps (typically 8-25 W).
Hydraulic Balancing of the Heating System
Setting the presettable thermostatic and riser valves so that each radiator receives exactly the flow rate it needs to deliver its heat output.
Weather-Compensated Heating Control with Night Setback
Matching the flow temperature to the outside temperature (heating curve) and lowering it outside occupancy hours.
Insulating Heating and Hot Water Pipes and Fittings
Retrofitting insulation to uninsulated heating pipes, hot water lines and fittings in unheated areas (basements, shafts, plant rooms).
Programmable Thermostatic Valves / Individual Room Control
Replacing manual thermostat heads with programmable or wirelessly networked smart thermostats for room-by-room, time-dependent setpoints.
Lowering the Flow Temperature (Heating Curve Optimisation)
Reducing the flow temperature as far as comfort allows — a direct lever for condensing operation on gas and for a higher seasonal performance factor on heat pumps.
Groundwater Heat Pump (Water-to-Water)
A heat pump using groundwater as its source — the highest efficiency of any heat pump type (SPF 4.5-5.5), drawing on a constant groundwater temperature of around 10 °C.
Hybrid Heating: Heat Pump plus Peak Load Boiler
Combining an air-to-water heat pump for base load with the existing gas or pellet boiler for cold days and high flow temperatures.
Connection to a Cold Local Heating Network (Anergy Network)
A low-temperature network (8-20 °C) links several buildings via decentralised heat pumps — each building draws or feeds heat and cooling and uses the network as its source.
Heat Pump Control on a Dynamic Electricity Tariff (Spot Market Optimisation)
The heat pump charges thermal storage preferentially during low-price hours (EPEX spot, dynamic tariffs) — cutting electricity costs by 15-30 %.
Kühlung5 Maßnahmen
Efficient Chiller / Split Air Conditioning (SEER ≥ 7)
Replacing old on/off air conditioners or compression chillers with inverter-controlled units at SEER 7 or above.
External Movable Solar Shading
External shading (venetian blinds, awnings) cuts solar heat gain during the cooling season by up to 80 %.
Free Cooling / Night Ventilation Instead of Air Conditioning
Using cool outside air at night or in shoulder seasons to cool the building; the air conditioning runs only in extreme heat.
Thermally Activated Building Systems (Concrete Core Activation)
A water-carrying pipe network embedded in the concrete floor slab — cooling in summer at 16-20 °C, heating in winter at 26-30 °C. Ideal with a heat pump or free cooling.
Adiabatic Cooling (Evaporative Cooling)
Humidifying the extract air upstream of the heat exchanger cools the incoming outside air without active refrigeration — up to 8 K of cooling for free.
Lüftung2 Maßnahmen
Comfort Ventilation with Heat Recovery (Central or Semi-Decentralised)
Mechanical supply and extract ventilation with heat recovery (typically 80-92 % recovery rate) replaces uncontrolled window ventilation.
CO2- and Humidity-Controlled Demand Ventilation
Controlling air volume by actual occupancy and air quality rather than by schedule or design maxima.
Warmwasser4 Maßnahmen
Domestic Hot Water Heat Pump (Booster)
A standalone heat pump for hot water only — using ambient air, for example from the basement, as its source.
Solar Thermal Hot Water (With or Without Space Heating Support)
Flat plate or evacuated tube collectors heat domestic hot water (typically 50-65 % solar coverage) and can support space heating.
Hot Water Circulation Optimisation (Time Control plus Insulation)
Limiting the hot water circulation pump to occupancy hours and properly insulating the circulation pipework.
Water-Saving Showerheads and Flow Restrictors
Replacing showerheads and tap aerators with water-saving versions (6-9 l/min instead of 12-18 l/min).