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Everything you need to know
With our broad experience in energy projects, we give you clear information on our processes, quality standards and how we ensure the best results.
To make it simple, our FAQs are organised by category for easy access.
Home solutions
Find answers to some of the most common questions
What is collective self-consumption?
Shared self-consumption is an agreement between consumers to share the energy consumption of one or more generating installations.
They must comply with the following:
All participating consumers must belong to the same self-consumption modality (without surplus or with surplus).
Sign an energy sharing agreement for the installation, agreed between the consumers.
Individually notify the distribution company —either directly or through the retailer— of the same energy sharing agreement for the generating installation(s), signed by all participants.
These sharing coefficients establish the percentage of energy from the generating installation that is allocated to each consumer on an hourly basis, and they can be modified every 4 months.
Is it profitable to share a photovoltaic installation with more neighbours?
Yes, it is profitable to share a photovoltaic installation, since by joining forces among several consumers:
It requires a lower investment as the cost is shared.
It leads to greater economic savings and a faster payback of the installation.
Collective use of clean energy and reduction of the carbon footprint.
A self-consumption community provides more facilities, resources, and greater space available for the installation.
What requirements are needed to set up a collective self-consumption system?
The first requirement for having a photovoltaic installation in a residential community is that at least 33% of the neighbours, or one third, agree and that they represent 33% of the participation quotas.
In addition, they must meet at least one of the following requirements:
The generating installations associated with the consumers must be connected through direct lines to the consumers’ internal network.
The participants must be connected to the same transformer station.
The maximum distance between the generating installation and each participant must be 500 metres, measured in orthogonal projection on plan.
The consumers must be located under the same cadastral reference, according to its first 14 digits.
What is the amount of these grants?
Most of these grants are municipal and are approved annually, so they may vary from year to year. They cover between 50% and 100% of the investment, depending on the municipality.
Who can benefit from a shared photovoltaic installation?
The following can benefit from this type of installation:
Homeowners’ associations:
For the consumption of their own dwellings.
For consumption in common areas.
Residential areas: A collective self-consumption system can be installed in residential areas where two single-family homes are located within a maximum distance of 500 metres, provided they meet the requirements and have a formal sharing agreement.
What is aerothermal energy?
Aerothermal energy is a renewable solution that meets heating, cooling, and domestic hot water (DHW) needs in a cost-effective and environmentally friendly way. It is the most efficient climate control system on the market, extracting up to 75% of the energy simply from the outside air.
What are the benefits of aerothermal energy?
As it is a low-energy consumption system, you save money while caring for the environment, since it produces no waste or CO₂ emissions. Its advantages are numerous.
Is its installation easy?
Yes, its installation is simple and quick, easily adapting to existing climate control systems (for example, a heating system with a boiler and underfloor heating or radiators).
What are its uses?
The same system can provide heating and cooling or air conditioning. In addition, it produces domestic hot water (DHW).
Does it need other energy sources to operate?
Yes, it needs electricity but much less than any other cooling system, since for every kW of electricity consumed, it provides between 3 and 4 thermal kW.
How much can I save with aerothermal energy?
La aerotermia es un sistema de alta rentabilidad, suponiendo un ahorro de hasta un 75% de ahorro en la factura de la luz.
How long does it take to amortise the aerothermal installation?
The installation is amortised in a relatively short period and can be shortened further if combined with other systems that act as an energy complement, such as solar panels.
Is it compatible with other renewable energies?
Yes, it is compatible, for example, with photovoltaic solar energy or with condensing boilers.
Does aerothermal energy make a lot of noise?
No, it is a system that stands out for the low noise level of the indoor unit in bibloc systems.
Will my home increase in value if I install aerothermal energy?
Yes, a house with aerothermal energy is not only more comfortable and economical, but also achieves a better energy rating.
Is aerothermal energy more efficient than a conventional electric radiator?
Yes, although this system consumes a small percentage of electricity. For every kW of electricity consumed, it provides between 3 and 4 thermal kW. For example, a conventional electric radiator consumes the same energy that it delivers: to provide 1 kW of thermal energy, it consumes 1 kW of electricity. With the same electricity consumption, an aerothermal system multiplies the energy delivered by 3 or 4.
Is aerothermal energy a safe climate control system?
Yes, as it does not have a fuel storage tank such as gas, diesel, or biomass, the risk of any related domestic accident is zero.
What types of electric vehicle chargers are available on the market?
There are three EV charging levels: Level 1, Level 2, and Level 3. In general terms, the higher the level, the greater the output power and the faster your vehicle will charge.
What does charging level 1 mean?
Level 1: Level 1 charging is when you plug your EV into a standard AC power outlet. Since a standard domestic socket only delivers up to 2.3 kW, charging through a Level 1 charger is the slowest way to charge an EV, providing just 6 to 8 kilometres of range per hour. As there is no communication between the socket and the vehicle, this method is not only slow but can also pose risks to your safety and that of your vehicle, which is why we do not recommend it.
What does charging level 2 mean?
It is the most common option in most households. Any standard alternating current charging station can be wall-mounted, pole-mounted, or free-standing. Level 2 charging stations typically deliver between 3.4 kW and 22 kW and are commonly found in residential, public, workplace, and commercial parking areas. At the maximum output of 22 kW, one hour of charging will provide approximately 120 km of range for your battery.
What does charging level 3 mean?
Level 3 charging stations can deliver more power, more quickly, making them ideal for short-stop locations such as service stations and fleet depots. Charging times vary depending on the vehicle and output power. But in general terms, Level 3 chargers can charge a vehicle in minutes, compared to hours for Level 2 or even days for Level 1 charging stations.
How long does it take to charge an electric car?
On average, depending on the charging level:
Level 1 (AC): 10h–40h
Level 2 (AC): 1h–20h
Level 3 (DC): 7min–2h
However, this will vary depending on the vehicle’s battery size, its charging capacity, and other external factors such as weather conditions.
How much does it cost to charge an electric car?
It depends on many variables, and in principle the most economical option is charging at your own domestic premises. As an approximate guide:
Domestic charging: €3 – €14
Public charging: €7 – €26
Fast charging: €12 – €43
Is it cheaper to charge an EV than to refuel a petrol or diesel vehicle?
Yes, charging an electric vehicle is much cheaper.
What is aerothermal energy?
Aerothermal energy is a renewable solution that meets heating, cooling, and domestic hot water (DHW) needs in a cost-effective and environmentally friendly way. It is the most efficient climate control system on the market, extracting up to 75% of the energy simply from the outside air.
What are the benefits of aerothermal energy?
As it is a low-energy consumption system, you save money while caring for the environment, since it produces no waste or CO₂ emissions. Its advantages are numerous.
Is its installation easy?
Yes, its installation is simple and quick, easily adapting to existing climate control systems (for example, a heating system with a boiler and underfloor heating or radiators).
What are its uses?
The same system can provide heating and cooling or air conditioning. In addition, it produces domestic hot water (DHW).
Does it need other energy sources to operate?
Yes, it needs electricity but much less than any other cooling system, since for every kW of electricity consumed, it provides between 3 and 4 thermal kW.
How much can I save with aerothermal energy?
La aerotermia es un sistema de alta rentabilidad, suponiendo un ahorro de hasta un 75% de ahorro en la factura de la luz.
How long does it take to amortise the aerothermal installation?
The installation is amortised in a relatively short period and can be shortened further if combined with other systems that act as an energy complement, such as solar panels.
Is it compatible with other renewable energies?
Yes, it is compatible, for example, with photovoltaic solar energy or with condensing boilers.
Does aerothermal energy make a lot of noise?
No, it is a system that stands out for the low noise level of the indoor unit in bibloc systems.
Will my home increase in value if I install aerothermal energy?
Yes, a house with aerothermal energy is not only more comfortable and economical, but also achieves a better energy rating.
Is aerothermal energy more efficient than a conventional electric radiator?
Yes, although this system consumes a small percentage of electricity. For every kW of electricity consumed, it provides between 3 and 4 thermal kW. For example, a conventional electric radiator consumes the same energy that it delivers: to provide 1 kW of thermal energy, it consumes 1 kW of electricity. With the same electricity consumption, an aerothermal system multiplies the energy delivered by 3 or 4.
Is aerothermal energy a safe climate control system?
Yes, as it does not have a fuel storage tank such as gas, diesel, or biomass, the risk of any related domestic accident is zero.
Bussiness solutions
Find answers to some of the most common questions about the energy efficiency services we offer for businesses and industry.
Industrial self-consumption: what is it and how does it work?
Industrial self-consumption means generating energy within a company’s or industry’s own facilities for its operational use. This reduces dependence on the external power grid and lowers the costs of purchasing electricity, with potential savings of up to 100% on the variable part of the electricity bill.
Return on investment
The return on investment depends on each case and may vary according to the following factors:
Energy expenditure: Based on the company’s historical consumption and future forecasts.
Amount of energy generated: The location of the photovoltaic installation, the level of sunlight and the quality of the system, among other aspects, are key to energy generation. The higher the output, the shorter the payback period.
Installation cost: Both the investment required and the potential subsidies available are decisive when calculating the return on investment.
In addition, it is important to note that photovoltaic panels are usually amortised within the first 4–8 years of their lifespan, while their useful life is around 30 years. All of this makes profitability high.
What is the maintenance cost?
The maintenance of solar panels is simple and low-cost. It is important to keep in mind that proper maintenance helps ensure profitability.
Tasks include cleaning the surfaces, checking the storage units, replacing insulating seals, and carrying out regular inspections for damage.
Adymus offers you an annual maintenance service that includes continuous monitoring and maintenance actions to guarantee 100% performance of the installation.
How many contracting and execution options are there for industrial self-consumption installations?
There are two contracting and execution models for industrial self-consumption installations:
EPC model or “turnkey project”. In this model, the client makes an initial investment covering the total cost of the solar installation, enjoying all the energy generated with no additional costs, since the solar self-consumption installation becomes their property. It is the most convenient solution if you want to start saving on your electricity bill immediately.
PPA model. In this case, there is no need for an initial investment. This model is based on a power purchase agreement to obtain energy at a lower cost than the conventional electricity grid. The client agrees, in the long term, with a producer or retailer to buy energy at a fixed price, always cheaper than that of the grid. It is an affordable way to drive the transition to renewable energy with zero upfront investment.
What is aerothermal energy?
Aerothermal energy is a renewable solution that meets heating, cooling, and domestic hot water (DHW) needs in a cost-effective and environmentally friendly way. It is the most efficient climate control system on the market, extracting up to 75% of the energy simply from the outside air.
What are the benefits of aerothermal energy?
As it is a low-energy consumption system, you save money while caring for the environment, since it produces no waste or CO₂ emissions. Its advantages are numerous.
Is its installation easy?
Yes, its installation is simple and quick, easily adapting to existing climate control systems (for example, a heating system with a boiler and underfloor heating or radiators).
What are its uses?
The same system can provide heating and cooling or air conditioning. In addition, it produces domestic hot water (DHW).
Does it need other energy sources to operate?
Yes, it needs electricity but much less than any other cooling system, since for every kW of electricity consumed, it provides between 3 and 4 thermal kW.
How much can I save with aerothermal energy?
La aerotermia es un sistema de alta rentabilidad, suponiendo un ahorro de hasta un 75% de ahorro en la factura de la luz.
How long does it take to amortise the aerothermal installation?
The installation is amortised in a relatively short period and can be shortened further if combined with other systems that act as an energy complement, such as solar panels.
Is it compatible with other renewable energies?
Yes, it is compatible, for example, with photovoltaic solar energy or with condensing boilers.
Does aerothermal energy make a lot of noise?
No, it is a system that stands out for the low noise level of the indoor unit in bibloc systems.
Will my home increase in value if I install aerothermal energy?
Yes, a house with aerothermal energy is not only more comfortable and economical, but also achieves a better energy rating.
Is aerothermal energy more efficient than a conventional electric radiator?
Yes, although this system consumes a small percentage of electricity. For every kW of electricity consumed, it provides between 3 and 4 thermal kW. For example, a conventional electric radiator consumes the same energy that it delivers: to provide 1 kW of thermal energy, it consumes 1 kW of electricity. With the same electricity consumption, an aerothermal system multiplies the energy delivered by 3 or 4.
Is aerothermal energy a safe climate control system?
Yes, as it does not have a fuel storage tank such as gas, diesel, or biomass, the risk of any related domestic accident is zero.
What types of electric vehicle chargers are available on the market?
There are three EV charging levels: Level 1, Level 2, and Level 3. In general terms, the higher the level, the greater the output power and the faster your vehicle will charge.
What does charging level 1 mean?
Level 1: Level 1 charging is when you plug your EV into a standard AC power outlet. Since a standard domestic socket only delivers up to 2.3 kW, charging through a Level 1 charger is the slowest way to charge an EV, providing just 6 to 8 kilometres of range per hour. As there is no communication between the socket and the vehicle, this method is not only slow but can also pose risks to your safety and that of your vehicle, which is why we do not recommend it.
What does charging level 2 mean?
It is the most common option in most households. Any standard alternating current charging station can be wall-mounted, pole-mounted, or free-standing. Level 2 charging stations typically deliver between 3.4 kW and 22 kW and are commonly found in residential, public, workplace, and commercial parking areas. At the maximum output of 22 kW, one hour of charging will provide approximately 120 km of range for your battery.
What does charging level 3 mean?
Level 3 charging stations can deliver more power, more quickly, making them ideal for short-stop locations such as service stations and fleet depots. Charging times vary depending on the vehicle and output power. But in general terms, Level 3 chargers can charge a vehicle in minutes, compared to hours for Level 2 or even days for Level 1 charging stations.
How long does it take to charge an electric car?
On average, depending on the charging level:
Level 1 (AC): 10h–40h
Level 2 (AC): 1h–20h
Level 3 (DC): 7min–2h
However, this will vary depending on the vehicle’s battery size, its charging capacity, and other external factors such as weather conditions.
How much does it cost to charge an electric car?
It depends on many variables, and in principle the most economical option is charging at your own domestic premises. As an approximate guide:
Domestic charging: €3 – €14
Public charging: €7 – €26
Fast charging: €12 – €43
Is it cheaper to charge an EV than to refuel a petrol or diesel vehicle?
Yes, charging an electric vehicle is much cheaper.
About Adymus
Find answers to some of the most common questions
What services does Adymus offer?
Adymus is an engineering company specialised in the development of projects in energy efficiency, renewable energy, and electric mobility for both private clients and businesses or industry.
Can I reduce my energy bill with Adymus services?
Yes, our energy consultancy experts can identify and assess effective solutions to reduce your community’s or company’s energy costs, developing a tailored project to determine potential savings and implement customised solutions.
Can Adymus help me install solar panels in my homeowners’ association?
Yes, at Adymus we are specialists in homeowners’ associations, being the first in Spain to develop this type of project. We support the community from start to finish by delivering turnkey projects.
What projects has Adymus carried out in the industrial sector?
Our experience speaks for itself: Adymus has carried out projects for some of the most relevant companies in the food, automotive, chemical and pharmaceutical sectors, among others. We have also won tenders for the public sector, both at national and international level.
Can Adymus carry out my project anywhere in Spain?
Yes, with offices in Barcelona and Madrid, Adymus carries out projects across the country, always guaranteeing the same quality and service.
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