Latest / RENEWA Sanierungsnavigator / Negawatt: Die günstigste Energiequelle, über die kaum jemand spricht
Transcript
- Oliver: you Now we have many technical terms one of I have so often is the term megawatt. If you are afraid that it could be complicated, I can reassure you that it will not Because in the core, megawatt simply the energy that is not consumed, i.e. the saved energy. If a house today consumes 20,000 kilowatt hours of heating energy and you only 10,000 then you actually 10,000 kilowatt hours. Not because you produce it, but because you don't need anymore. And that's what megawatts The exciting thing about is that this form of energy is completely underestimated. We are talking about new solutions in politics So, heat pumps, hydrogen, new energy sources, expansion, infrastructure. That's all important, no question. But the cheapest, fastest and safest energy is the you don't even use. And right now... where the energy prices are through the ceiling and the supply situation is also more you that clearly. Many people think, yes, we just more energy More gas power more nuclear power more photovoltaic, more whatever. But often the better answer is actually, need less consumption. And if you look at where this consumption arises, you up with building stock Because something happens that you don't even notice A huge part of the energy that is heating is simply lost. over walls that poorly dammed, above roofs, over roofs. That means we don't just our rooms, but also our environment. And that's where the megawatts The good thing is, these losses can be much easier reduce than you think. An example that I yesterday is the inflow dam. You the existing building cover in storage, for example in two-shell walls or on the attic, and fill it with dam material. It all goes fast, often within a day. and you hardly have to change So not a huge conversion, this is not a large construction site, but a direct noticeable effect. And if you it economically, it gets even more exciting. Because megawatts are usually the cheapest energy source you can While new heating systems or energy generation need investment, often measures such as inflow-damping at comparatively low costs, for example from 50 euros per square meter or below. At the time, this savings immediately and every year to the new one. That means you your heating costs directly, reduce your risk at steep energy prices and also the value of your real estate. And that's why many these measures much faster than you think, hopefully not in decades, but in a few years. And the effect can really be great. There are studies that show that by such measures you the heating energy consumption, partly in range of more than 10 percent. And that's the point. The inspiration is there. You don't to invent new, build import You just what's there, just in an efficient way. And what many underestimate, it's not just about cost. A well-shrinked building simply different. The walls are warmer, the temperatures are more it pulls less. If you know about you can the podcast with Florian Reinhardt, I recorded. I'll link in the show notes. It was about exactly the topic, namely moisture and living comfort. This is a relevant point that to At the end we have less energy consumption and more comfort at Negawatt does not mean that you to give something. It simply means that you stop losing energy unnecessarily. And maybe that's exactly the important change of The energy transition is not only about how we generate but also about how much we need And there is a huge lever in the negawatt.