How to keep your environmental footprint and costs down.
The construction of our houses have a great influence on the climate.
When you look at the Klimahaus houses that Bastian Schendzielorz and his company develop, plan and build, you might think they are pure design objects. But despite the astonishing exterior, the main incentive of the tinkerer from Bavaria, Germany was the best possible energy balance. And that starts with the choice of building materials:
"I pay attention to the energy balance of every building material used, so that the house already has the best combined energy balance possible after construction."
He is not alone in this, but he is part of an absolute minority in the construction industry. The industry is responsible for roughly one-third of greenhouse gas emissions worldwide. Cement production alone is responsible for about 10 % of global emissions. By comparison, total air traffic accounts for only about 2 - 3 %.
Accordingly, the next question was how to make the house as energy-efficient as possible. Here, too, Schendzielorz thinks holistically.
So Schendzilorz started looking into photovoltaic systems and contacted several providers. Most of the time, it lacked an eye for the big picture. But together we were able to find a good solution for the individual requirements of the passive house. The heating for this house is generated by infrared heating and a wood stove. The system is of course fed with solar power whenever possible. To ensure that there is always plenty of it, there's also the battery storage.
"If I were to look at my normal electricity consumption without the heating, we would probably be at 80 to 90 percent self-sufficiency."
Hot water is provided by a heat pump. And here, too, the Klimahaus is different from most other houses. Typically, heat pumps are located outdoors. It's not completely unusual to integrate one into the wall of the house, however, Schendzilorz placed his heat pump on the top floor.
"The reason is very simple: the pump should be located as closely as possible to the primary source of consumption, the shower on the upper floor. That way, you save on the circulation pump."
You won't find a pipe running further than 5.5 meters from the extraction point in the Klimahaus. The special mounting has another, positive side effect: The heat pump can be used as air conditioning in summer, because it can vent the warm air out and thus provide cooling.
- Together with Bastian Schendzielorz, we planned a system that covers 45 % of his energy consumption and reduces his energy costs to 7 € per month.
- With the SOLARWATT Manager, Bastian and his wife can always adjust their electricity consumption to the weather and their needs on a daily basis. Or have it regulate all automatically.
- The battery system ensures that clean energy can still be used in bad weather or at night.
- The heat pump and infrared heating are also powered by clean solar power.
It's all a matter of good will and good planning.
The young entrepreneur still has a lot of plans. He is a firm believer that when you plan and build a house, you can lay the foundation for a sustainable life, far from the usual models.
"If everyone built like this, we wouldn't have to constantly worry and argue about the issue of clean traffic and all sorts of other things."
But that's no easy task. After all, many trades come together when building a house. Coordinating all of them to achieve one's own energy-saving goals is not one of the tasks that builders dream of. That is precisely why Bastian Schendzilorz is planning homes in which all this has already been taken into account. Holistic thinking for a life with clean energy.
It didn't take Bastian Schendzilorz long to convince us of his way of thinking. After all, our everyday life is filled with evermore habits and devices consuming energy. In conversation, the common goal of gaining control over one's own ecological footprint quickly became clear. Schendzilorz's contribution is a Klimahaus with an excellent primary energy balance that also looks great.
"If I can convince people to build a fully ecological zero-energy house, then I've already helped them with their personal balance sheet and thus actually helped us all."