ᐅ New Single-Family Home Construction – Gas or Air Source Heat Pump + Photovoltaic System + Energy Storage?

Hello everyone,

I will be building a house in 2021/2022 and will live in it myself. It’s a 10x10 meter (33x33 feet), 1.5-story standard single-family house. The roof is a pitched roof with a 40-degree pitch, ridge direction North/South (so the roof faces East/West and can be equipped with photovoltaic panels).

Now, my question: Gas is available in the area. Which heating technology would you recommend?

Gas? Air-source heat pump + photovoltaic + battery storage? Ground-source heat pump? Or something completely different?

And who can give me advice like this without any hidden profit motives (like heating installers always pushing gas, etc.)?

Regards,
Flo

W

nullhorn schrieb:

So, now to my question. Gas is available in the area. Which heating technology would you recommend???

What energy standard are you aiming for? What is your budget? Plot size?

With the information you’ve given, any answer could be correct at this point.
I would always build with a heat pump. Plus photovoltaic panels as large as possible. The storage system needs careful calculation.

What do you want? Gas is by far the cheapest and very reliable.

Heat pump with photovoltaic storage is very expensive but more future-oriented.

If you have a tight budget, go for gas.

I would lean towards an air-to-water heat pump combined with photovoltaic panels, as they work well together.

I would currently avoid adding a storage system. It is still very expensive, which carries a significant risk that it may never pay off. Photovoltaic systems usually pay for themselves over time and can continue to operate for years after reaching the break-even point.

Hello,

sorry for the late reply.

nordanney schrieb:

What energy level are you aiming for? What is your budget? Plot size?

What is meant by energy level? Budget for the entire building project is 350,000–400,000 (plot already owned). Size around 250m² (approximately 2,690 ft²), so no room for large-area collectors.

Bookstar schrieb:

What do you want exactly? Gas is by far the cheapest and very reliable.
Heat pump with photovoltaic storage is very expensive but more future-proof.
If budget is tight, go for gas.

Well, as usual, a bit of everything. Affordable heating, environmentally friendly, and somewhat self-sufficient would also be nice.
But honestly, I hadn’t considered the costs yet. Can anyone give a rough price comparison between a modern gas heating system and photovoltaic with an air-to-water heat pump? I have no idea—maybe $10,000 vs. $25,000???
Then you really have to think about how much the “environment” is worth to you because with a $15,000 difference, you can afford to heat with gas for a long time. And yes, my budget is very tight.

nullhorn schrieb:

What is meant by energy level?

Energy Saving Regulation, KfW55, KfW40(+)

nullhorn schrieb:

Well, I hadn’t considered the costs yet. Can you give a rough price comparison between a modern gas heating system and a photovoltaic system combined with an air-to-water heat pump?

You shouldn’t include photovoltaic systems in your calculation. You can install those even with a gas heating system. The important factors are the initial investment costs and the difference in operating costs.