We contacted Energanova because we wanted to change our old gas boiler for a more efficient and environmentally-friendly system. It is noticeable that they are specialists in this type of work since they have proven to be very professional at all times.
Photovoltaic combined with air-source heat pump in a terraced house
Andrés is the owner of a semi-detached house located in Paracuellos del Jarama, province of Madrid. When Andrés bought this house it only had a gas boiler and underfloor heating. The installation also included a solar thermal panel to meet the requirements of the CTE (Technical Building Code) regarding the production of DHW. As an option to cool the house, he is given the possibility of installing air conditioning, but he must assume an additional cost.
This is a fairly frequent case in this type of housing development in residential areas of Madrid, where the priority is to reduce costs, regardless of the system’s efficiency.
Customer doubts and preferences
When he bought this house, Andrés knew that the system it had was not the best option to air-condition it, so he decided to look for a more efficient alternative.
This search led him to contact us. We evaluated the possibility of installing a heat pump to cover all the heating, cooling, and DHW needs. André was considering combining this installation with photovoltaic panels to reduce energy consumption as well as reliance on electricity companies.
Energanova recommended the installation of an aerothermal heat pump system by the Austrian manufacturer iDM combined with a photovoltaic kit for instantaneous self-consumption.
This way, all heating and DHW needs would be covered with just one piece of equipment, and in addition, it could also cool the house in summer with the existing underfloor heating.
With this system, he could enjoy a comfortable temperature throughout the year with small electricity consumption, which would be compensated thanks to the electricity production of a photovoltaic kit.
To facilitate Andres’ decision, we accompanied this proposal with a complete energy study. This study showed him both the initial investment required and the approximate annual consumption of the installation. This way, he would have a very approximate value of the savings generated year by year with this new system, concerning the one already incorporated in the house.
With the idea of helping to make Andrés’ investment profitable, we offered to buy and pick up the gas boiler, still unused, since he would no longer need it with the application of our proposal.
Finally, Andrés decided to accept our proposal. After reviewing all the information we provided him, he verified that it was a good investment since the high performance of the aerothermal heat pump would facilitate the amortization in a reasonable period.
As a complement to the aerothermal system, Andrés decided to install a self-consumption photovoltaic kit. This way, he would be able to air-condition his home at practically zero cost, since the kit was calculated to produce the electricity necessary for the operation of the heat pump.
Having his source of electricity generation would contribute to greater energy independence. In addition, this investment would be amortized very quickly, since Andrés also got a property tax rebate from the city council and a tax deduction of 5% of the investment up to a maximum of 280€.
Once the decision was made, and after analysing the existing installation in detail, we decided to divide the house into several independent control zones, each managed by the heat pump itself. To do this, we had to install several temperature and humidity probes via radio in the different areas of the house. This would allow us to achieve greater savings and comfort in the house, as they could independently regulate the temperature and schedules of the different zones according to their specific needs.
Finally, the installation consisted of the following elements:
Aerothermal heat pump
Air-to-water aerothermal heat pump by the Austrian manufacturer iDM, model i-Pump A 3-13. Its performance perfectly suits the climatic needs of the area, as it has very good performance at very low temperatures.
DHW storage tank
The heat pump integrates a 190-litres stainless steel storage tank fordomestic hot water (DHW)
Depósito de inercia para calefacción y frío
For the heating/cooling inertia, we installed an Enertres model DPI-200F 300-litres storage tank.
Although this installation does not strictly require a buffer tank since the heat pump has an inverter compressor, we decided to install it to take thermal advantage of the photovoltaic surplus.
The heat pump has a regulation system with a photovoltaic function. This makes it possible to use the photovoltaic surplus and store it thermally in the buffer tank during both summer and winter. If the surplus is produced in winter, it is stored in the form of hot water for heating, whereas in summer, it is stored in the form of cold water for cooling.
Regulation and control
To control the installation, we placed humidity and temperature sensors in different rooms of the house. The Navigator Pro system, integrated into the iDM unit, allows us to control each zone independently. In addition, the installation can also be controlled remotely and free of charge through the app provided by the manufacturer.
The installation was completed with a photovoltaic kit of 2.16kW peak power (8 panels x 270W) with a Fronius Primo 2.5 inverter. This inverter has a communication protocol developed jointly with iDM for the integration of both systems: air conditioning and photovoltaic production. This way, we guarantee a perfect harmony between the heat pump and the photovoltaic system.
The photovoltaic production potential was estimated at around 3,500 kWh per year since the house has a flat roof that allows the panels to be installed with optimal orientation and inclination.
The best energy is the one transmitted by our customers
- Quickness of response
Excellent company. You contact them and they quickly go to your home to decide what its ideal installation could be, solving any questions you may have. They have better prices compared to other renewable energy companies. Fast and well-executed installation. In my case, I asked for the Inega subsidy, and as an authorized installation company they take care of everything, being the first to get it so that you do not run out of it. If I had to do any other installation, I would contact them without hesitation.
I have been advised and informed throughout the project in a very professional manner, as well as helped in the management of the subsidies. They provide customized attention and follow-up after the installation to get the most out of it. I think this is the way to switch to renewable energies, by overcoming the stress and insecurities that we may have. ENERGANOVA 100% recommended!!!!
We have been collaborating for a long time with the company Energanova in all our projects involving geothermal and air-source heat pump systems, combined with photovoltaic technology. They show experience, professionalism, and seriousness from the initial drafting of the project to the final installation. They have a great technical and commercial team that advises you in each of the phases towards the best energy solution, always transferring their extensive knowledge to you. They work with the best brands and put great care into design and aesthetics. We will continue collaborating with them and of course recommending them to every person or company that needs to carry out any renewable energy installation.
Great company and quick installation. We renewed our old geothermal machine for one of the best in the market. The savings are impressive, and the electricity bill has fallen radically, but for me, the best thing is the after-sales service. You can obtain assistance at any time, both by telephone and face-to-face. Great job!
Excellent service. The advice they offer is outstanding, with very professional execution. Highly recommended.
We have had an excellent experience with Energanova. They have complied with the deadlines, the staff was very professional, and the work was clean and very fast for both geothermal energy and photovoltaic panels. We applied for the grants of the Xunta de Galicia and they were in charge of managing it completely. We are very pleased with our choice, both for the treatment and the result of the installation.
I can say that they are a company in which at all times both the technical advice and professional treatment were according to my needs. If you are thinking about installing a heating/air conditioning system, do not hesitate to consider them as an option, because they are undoubtedly a solvent and serious company, which in these times is often difficult to find. Thank you Energanova!
Good experience, good work, meeting deadlines, and everything running smoothly. We are very happy and now even more with the rise of light prices! They have also facilitated the cumbersome process of applying to Xunta de Galicia’s subsidies. I encourage people to choose this company!!! Good choice.
Pincheiro AT, our apartment complex in A Pobra do Caramiñal, bets on renewable energies, especially geothermal and photovoltaic technology. We can assure you that Energanova has greatly fulfilled all our expectations. We can confirm, and this is difficult, the honesty of this company since what was budgeted at the beginning corresponds reliably to what we have been invoiced. We can only say on the part of Pincheiro AT that we feel in good hands both for what has been done on-site and in terms of the timely follow-up being performed.
After wanting to invest in photovoltaic technology, I started to search the Internet for companies that could give me an estimated cost, until I found Energanova. From the start, Javier assisted me as a customer wants to be assisted, with patience and respect, because not everybody knows what a solar panel, an inverter, etc… is. Energanova is worth it; they are trustworthy. Thank you.
The company works well. They offer different alternatives after studying your problem, answering and clarifying all the doubts you may have. They provide a fast and efficient response. They are good professionals that have adequate documentation and information about the operation of the facility. They take care of all the administrative procedures, including subsidies. We are very satisfied!
I am very satisfied with this company. They have advised and informed me throughout the project in a very professional manner, they are very good technically speaking, and you can tell they have a lot of experience. Aesthetically, they have taken care of every detail so that the installation was integrated into the house and the wiring was as concealed as possible. I had other more economical proposals at first, but in the end, they even got me a grant that covered a good part of the budget. In short, ENERGANOVA 100% recommended.
Excellent value for money. The installation carried out has been more than cost-effective, both economically and in terms of comfort at home!
Great and very fast after-sales service!!
We were delighted with the installation. We wanted thermal emitters for our village house and everything went perfectly, they work very well. The installation was very simple and fast, fulfilling perfectly with what they offered us. They are very professional and attentive. We will work with them again.
Quick response and excellent professionals, I recommend them with no doubt.
Finally, a company that gave me what it offered. It is difficult, but if in the end you find a company like this with great professionals, the result is very satisfactory.
We have had at home an air-source heat pump and a photovoltaic system installed by the company Energanova for a few months. As regards savings, at the moment our electricity bill has decreased by 70% and we no longer have to order diesel! If someone is encouraged to install renewable systems, I recommend that they look for a professional company. We are very happy with our choice.
I have carried out with ENERGANOVA a geothermal installation with photovoltaic technology and we are very satisfied with both the execution and the consumption achieved. mos. Especially, since electricity is currently skyrocketing and we only pay 20€ per month. 100% recommended company in all aspects.
Excellent: great professionalism, both in the administrative work to obtain permits and subsidies, as well as in the technical work to install the equipment. They are always paying attention to the correct operation of the installation and any incidence.
We only have good words regarding the solution provided by Energanova. In our case, it was an air-source heat pump and solar panels. Our house is finally warm in winter and cool in summer with a monthly cost much lower than what we were previously paying. I strongly recommend Energanova as a solution to your needs.
The geothermal installation plus photovoltaic panels was a success. The comfort and energy consumption that we were guaranteed was fulfilled, and despite our initial distrust towards this type of renewable energy, now we can only say that we recommend it 100%.
I installed the air conditioning of my house with a geothermal heat pump (iDM), underfloor heating, and photovoltaic panels with Energanova. We are very satisfied with the result. As a company they are very serious and professional, they advised me at all times. With this installation, the house is very comfortable and the consumption is reduced. It is a 100% recommended company.
I have worked with Energanova in the rehabilitation of a house and I am very happy with my choice. It is a close and professional company. They have a great team that explains in detail to the architect, technical architect, and builder as well as to the property the benefits of everything before, during, and after the work. Highly recommended!
They are great professionals, punctual, scrupulous with the work, and very serious. I will hire them again for another project. Thank you.
Excellent treatment, great professionalism, and a team dedicated to finding the best technical and economic solutions for the client.
I am going to tell my experience with this renewable energy company. First of all, I must say that I have always considered myself a ‘difficult’ person as a customer, who demands seriousness and professionalism in all the services I hire, especially for my house. Well, I have to say that on this occasion my satisfaction is maximum and I want to congratulate the whole Energanova team for its professionalism through this review. Nowadays it is not easy to find companies that do things well, and I must tell you that this company does them very well.
They are good professionals and very agile. I have installed photovoltaic panels with them and I am delighted.
Energanova is a serious company, which at all times explained and helped us in everything related to the photovoltaic installation, which is perfect. They have looked for specific solutions for a much reduced space. 100% recommended.
Great and very fast after-sales service!!
Quick response and excellent professionals, I recommend them with no doubt.