Zwollenaar Gerald (45) lives very energy efficiently: ‘I pay 5 euros a month, but it is purely symbolic’ | Money

How much money do you spend on energy at home? How do you try to reduce costs? We ask a Dutchman these questions every week. Today: Gerald van Grootheest (45) from Zwolle.

How do you live?
,, I live in a corner house from 1964 in Zwolle. The house has a living area of ​​140 square meters. My three children are with me half the time. When I came to live there in 2016, this house still had a gas consumption of 3000 cubic meters per year. I am now off the gas and the house is energy neutral.

I started by setting the central heating differently and installing an underfloor heating pump switch. I then placed a heat recovery unit under the shower and had the cavity wall re-insulated in 2019.

Since 2020, I have no longer used gas. I now have an air-to-water heat pump that is also attached to the underfloor heating and a heat pump boiler for hot water. In other words, a small tank of 100 liters with a heat pump of 200 watts connected. It is only switched on during the day, because it makes a noise like an old refrigerator. Furthermore, the roof is re-insulated and I scored a used heat recovery ventilation at Marktplaats. It was a demo model for schools, so not perfect, but it works fine.

I have 22 solar panels since last year. That’s even enough for my electric car.

Do you want to participate in this section yourself? Mail to wonen@dpgmedia.nl. This episode of ‘Energy Account’ has been rated by energy performance consultant and real estate agent Fabian Grotenhuis from Dieren.

What kind of energy contract do you have?

,, My annual contract with Vandebron still runs for a few months. I now pay 5 euros a month, but it is purely symbolic. I’ll probably get (extra) money back. My annual consumption is 6000 kWh el. It includes my electric car, which has a large share in consumption. I also generate the annual consumption with my solar panels. ”

What do you do to lower your energy bill?
,, I measure everything I use, continuously. Since a few months I have had a HomeWizard P1. Using special connectors, I can see exactly how much power each device is using. For example, I can see if the door to the refrigerator is open or what my computer or car is using. Before that, I looked at it piece by piece and kept track of it in Excel.


Quote

Of course, the children still leave doors open or lights on and want to take a shower for as long as possible. But after 30 minutes, the boiler is empty

Gerald van Grootheest

Of course, the children still leave doors open or lights on and want to take a shower for as long as possible. But after 30 minutes, the boiler is empty. In principle, it is never a problem. Usually we just plan who is going to take a shower in the morning and who is going to take a shower in the evening, but that is possible with the four of us in half an hour. I think it could be a little smaller. I worked in Groningen for six years and saw the misery of the earthquakes there. Then I knew: we need to get rid of that gas. I would like to contribute to that.

I do not have too many devices either. You can not use what you do not have. I get a lot of knowledge from the forum about Tweakers. There they talk to each other about energy efficiency and computers. I myself am in an app group of thirty people who jointly bought a Panasonic heat pump in Germany. There was someone who offered them for 2800 euros apiece. The big advantage was that you can connect it yourself. Thanks to the grant, I paid 900 euros net for it. While such a device can usually quickly cost 10,000 euros. I try to make everything smart and cheap.

My most important tip for others: Take your time and make a plan. I can say that I have played my house out now. My next project will be to make my old motorhome completely electric. ”





Leave a Comment