How many solar panels do you need for a heat pump?
How much does a heat pump consume?
On average, a fully electric heat pump consumes between 3500 and 5000kWh (kilowatt-hours) per year. A hybrid heat pump consumes a bit less as it works together with your boiler. Its consumption is between 1500 and 3000kWh per year on average. How much you consume depends on your situation and the model you choose. For this article, we're taking the following averages:
- Fully electric heat pump: 4250kWh
- Hybrid heat pump: 2250kWh
How many solar panels do you need?
A single solar panel of 430 Watt-peak generates about 300kWh in the Netherlands. How much your solar roof truly generates depends on the weather, the position of your roof, and the shadows cast on your house. To calculate how many solar panels you need, divide your yearly consumption by the yield of 1 solar panel. For the examples in this article, we'll use the following calculations:
- Fully electric heat pump: 4250/3000=14 solar panels
- Hybrid heat pump: 2250/300=8 solar panels
Use green energy
There are many advantages to solar panels. You can save on your energy bill because you need less gray energy from the power grid. Do you choose a heat pump with a boiler? In that case, you use the energy you generate during the day to heat up your water. You can also use the energy for a charging station when you drive electrically. Do you want to know if a solar roof fits on your roof? Request a free advice appointment with one of our advisors.
