Sinne Technyk creates energy-neutral home with Panasonic solar panels and heat pump
Sinne Technyk recently fitted out a house in Oudemirdum, Friesland, with Panasonic solar panels and a heat pump with low temperature heating. Thanks to this combination, the owners now have an energy-neutral home and benefit from a more comfortable indoor climate.
It concerns a house of 14 by 10 meters with an annual gas consumption of 1,800 to 2,200 cubic meters per year. "The owners of this property asked us to make the house more sustainable. The aim here was to achieve energy-neutral living and zero on the meter," explains Leo van der Molen of Sinne Technyk. A heat pump is an interesting option in this case. "However, the owners had been warned by friends and neighbours of all kinds of risks associated with heat pump, and were therefore sceptical. For example, they were worried about noise production, partly in terms of how it would affect their neighbours."
Let clients experience the reality for themselves
To alleviate these concerns, Sinne Technyk took the owners to a project nearby, where a Panasonic heat pump has been in use for some time. This enabled them to judge for themselves the noise production and size of the unit, and other aspects, which took away many concerns. "When we were standing next to the heat pump, our customers asked us to turn on the heat pump in order to assess the noise production. However, the system had been running all along, which shows how silent the system is when running.
We also put our customers in contact with the owners of this previously completed project, so that they could ask questions. For example, we notice that the capacity of heat pumps can cause concerns and customers are afraid of having insufficient hot tap water at their disposal. Such concerns can best be addressed by sharing practical experiences."
Silent Aquarea T-CAP heat pump
With a view to comfort, both for the customers and their neighbours, a silent Aquarea T-CAP heat pump was selected. "An important argument for choosing this particular model is its ease of operation. The end user does not need to read the user manual to get started with the unit. That is one of the major advantages of Panasonic heat pumps, in my opinion.
Panasonic heat pumps are very easy to operate via a touchscreen and are therefore very user-friendly", says Van der Molen. "If you explain to a customer how to set up a heat pump, you almost always get the answer that this explanation is clear. But if you then ask them to actually change a setting, customers quickly get stuck. With Panasonic heat pumps this is different, and customers find their way around easily."
Already meets future noise production requirements now
Van der Molen also points to upcoming legal requirements in the field of noise production. Although these requirements have not yet come into effect, Panasonic's Aquarea T-CAP heat pump already meets them. "The Aquarea T-CAP is already a very quiet unit as standard. However, the heat pump is equipped with three silent modes, which can be used to further reduce noise production during the night, for example."
The Aquarea T-CAP is partly powered with energy generated by solar panels. A total of 24 Panasonic HIT KURO solar panels of 325Wp each were installed in combination with a SolarEdge inverter equipped with optimisers. "In our opinion, these are the best quality solar panels currently available on the market. Thanks to their high efficiency , the panels produce the largest amount of energy per m2 and also have a long life span."
Choice for Quality
A conscious choice was made for Panasonic products. "We are noticing in practice that customers like to opt for quality and prefer to pay a little more for a good quality solar panel or heat pump," says Van der Molen. "Panasonic's solutions are not the cheapest, but offer higher quality than those of its competitors. As a result, the price-quality ratio is considerably better." The products also pay for themselves in practice, partly due to the higher efficiency that the HIT KURO solar panels offer compared to other panels. The HIT KURO panels deliver a temperature coefficient of -0.258 %/°C. As a result, the panels have a high efficiency even at high outside temperatures, maximising the yield.
The project was completed on 24 May. "Due to the very recent completion of the project we do not yet have any insight at this stage as to the actual yield of the system and the energy consumption of the heat pump," explains Van der Molen. "With a project like this, you always try to match the energy yield of the solar panels as closely as possible to the energy consumption of the house. There's always a level of speculation in this, though; how much heating the residents use, for example, has a major influence. We therefore always err on the side of caution in terms of the number of solar panels we install. After all, if in practice too little capacity is available, we can always add a panel, but if there is overcapacity, part of the investment is lost. Consciously installing an inverter with a degree of overcapacity makes this flexibility possible."
Location: Oudemirdum, the Netherlands
PV Modules: 24 x Panasonic HIT KURO 325WP
System output: 7.8 kWp
Heat pump: Aquarea T-CAP
Expected yield: 7568 kWh per year
Year of installation: 2019
Installation company: Sinne Technyk