Eiskalter Winter = Schwache Effizienz? Jetzt kommt die Rechnung für unsere Wärmepumpe!

January and February were freezing cold in Northern Germany, and our heat pump worked hard, operating below its optimal range for weeks. In this video, we list our consumption and costs. T-shirts, mugs, and more are available in our shop. Feel free to stop by :-) https://gewaltignachhaltig.myspreadsh... Advertisement: Our books: Energy Transition - How It Works: https://www.penguin.de/buecher/martin... Photovoltaics for Beginners: https://www.penguin.de/buecher/anne-p... Money for your electric car: With our link to the GHG quota at Geld für eAuto (Money for Electric Cars), you get the best rates and we receive a commission: https://geld-fuer-eauto.de/?code=gewa... If you like our work and find our tips helpful, please support us via PayPal: https://www.paypal.com/donate/?hosted... Everything about modules 1-3 of Section 14a of the German Energy Industry Act (EnWG): https://www.bundesnetzagentur.de/DE/V... For more sustainability in life - tips, trends, tests, statistics, buying recommendations, surveys and much more: https://www.utopia.de 20 billion euros per year for diesel and kerosene: https://www.umweltbundesamt.de/sites/... Most thumbnails are generated using an AI image generator. Unless otherwise indicated, the video content is AI-free. Our PV system: 20.56 kWp, 44 x IBC Polysol 270/285 Wp modules, mounted at a 10° angle, east-west facing (-65°/115°) / 11 x Astronergy 405 Wp modules, east facing (-65°) / 10 x Astronergy 405 Wp modules, south facing (25°) - SMA STP SE 10.0 + STP 6.0 inverters - SMA Home Storage 13.1 kWh battery - 15% backup power reserve - SMA eCharger 22 - PV yield: 615 kWh/kWp Our balcony power system: 1.78 kWp, 4 x IBC modules, 445 Wp modules, mounted at a 90° angle on the south-east facing facade (-65°) - 8 kWh battery storage - 800 W inverter Our electric car: Tesla Model 3 Performance with an annual mileage of 15,000 km, of which 3,000 km are used for... Long-distance travel with charging stops. Our heating system: Vaillant arotherm plus VWL 75/6 A heat pump – heating output up to 7 kW – electrical output up to 3.2 kW – settings: heating curve 0.5, base temperature 21 degrees – gas consumption to date approx. 24,000 kWh. Our house: atrium bungalow built in 1983, unrenovated – 120 m² ground floor with underfloor heating – 40 m² basement, uninsulated and unheated – exterior wall insulation (42 cm sand-lime brick) 10 cm – flat roof insulation 15 cm – double-glazed wooden windows from 1983 – 2-person household – living room temperature: 19-20°C – other room temperature: 17-18°C – basement temperature: 18-19°C. Calculated heating load: 8 kW. Building energy demand: 160 kWh*m²/a The current costs of the components of our private energy transition are as follows: PV system with storage and wallbox: €25,000 + 1% annual operating costs. Balcony power plant: €3,000. The electric car is cost-neutral compared to a similar combustion engine vehicle in terms of purchase and maintenance, except for fuel costs. The heat pump cost €8,500 more after a 40% subsidy. Total: €41,500 plus any financing interest.