¿Tienes alguna duda?
¿Es necesaria una grúa?
What are the necessary certificates in order to carry out an installation with guarantees?
There are several certifications and requirements that are necessary to legalize self-consumption installations for public administrations and electricity distribution companies.
The first of them is that the installation company that carries out the project is registered and registered in the Integrated Industry Registry as a Low Voltage Installation company in the Specialist Category for Low Voltage Generating Installations. In addition, the company must have a Low Voltage Installer Technician who will be the one who carries out, maintains and repairs the electrical installations within the scope of the Electrotechnical Regulation for Low Voltage (REBT), approved by Royal Decree 842/202 and its technical instructions. complementary (ITC-BT).
At the discretion of the City Council where the facility is to be located, it may require a Health and Safety Study, a Waste Management Study, a Technical Design Report of the project, and a Structural Safety Certificate signed by a competent technician in the area. in the event that the installation is projected on the roof of an existing building in order to comply with the Basic Structural Safety Document for Building Actions of the Technical Building Code.
Regional administrations and electricity distribution companies will require a Technical Design Report or a Technical Project, depending on the dimensions of the installation. Furthermore, it is common for them to require, regarding the electrical components of the installation, a document from the manufacturer or an accredited laboratory report on compliance with the regulations and technical requirements applicable according to Royal Decree 1699/2011 and 413/2014; including the CE marking by virtue of compliance with the safety requirements for people and goods required by the Community Directives that apply to it and especially compliance with protection against island operation.
Can I invoice in the name of my company?
¿Cuál es el tiempo de instalación?
The installation of a single-family home, with up to 10 solar panels, can take between 1 and 3 days depending on the difficulty of access, assembly and anchoring of the solar panels to the roof, as well as the difficulty of wiring inside the home.
The main delays usually come from the administrative process if it is necessary to wait for a formal resolution regarding obtaining the civil works license, or if the administrations require the provision of unusual documentation.
We begin by doing a study of your energy needs based on an electricity bill to know how much energy you need to generate, the necessary investment, the estimated annual savings and the return on investment period based on this.
Next, we process the urban civil works license with the City Council, after paying the license fee. This license may or may not require a formal resolution, so it will be the procedure that determines the start date of the installation.
We carry out the installation, which for a single-family home can last between 1 and 3 days depending on the difficulty of access, assembly and anchoring of the solar panels to the roof, as well as the difficulty of wiring inside the home. The moment we start up your installation it will already be generating renewable energy and saving on your electricity bill!
Once the installation is completed, the registration procedure for low-voltage electricity generation facilities is processed with the regional administration. The administration has a period of 10 days to send the information about the registration of the new installation to the distribution company.
The distribution company has a period of 5 days, from receiving the information from the Autonomous Community, to send the details of the self-consumption contract to the marketing company and the consumer.
In the event of discrepancies, the consumer has a period of 10 days to communicate his disagreement to the marketing company or directly to the distributor.
Are batteries convenient?
It will depend on each case depending on the needs and budget you can assume. In a home that has low consumption during sunny hours because there is no one in the home for much of the day, it would be advisable to install batteries to accumulate the energy produced and use it in the evening-night period when consumption is made. high.
However, the financial outlay can be important if the aim is to store all of the energy that a home consumes in the hours of absence of sunlight.
Currently, Lithium batteries allow storage capacity to be increased progressively. In order to install batteries in the future, the only necessary condition is that the inverter be of hybrid technology, that is, it is prepared to operate with batteries.
Who does all the paperwork? Also the procedure with the electric company?
If you agree that we represent you, through a declaration of representation signed by both parties, we take care of all the procedures with public and private administrations so that you do not have to worry about anything.
What type of self-consumption is most convenient?
Let’s first distinguish between grid-connected self-consumption and isolated self-consumption. The latter can be convenient for country houses without large energy needs, and they will almost always require a storage system to power loads, such as refrigerators, during the hours when we do not have sunlight.
Grid-connected self-consumption is the option for industries and regular homes, as it guarantees electricity supply at night and on cloudy days when production is limited.
For a small grid-connected consumer (and producer), simplified surplus compensation is the best option. In this way, the energy discharged offsets the cost of energy taken from the network in each billing period. The disadvantage is that the price that the supplier sets to compensate for the energy supplied to the grid is half the average price of the energy taken from the grid.
For self-consumption facilities with greater energy generation, which can clearly obtain an economic benefit by pouring much more energy into the grid than is consumed, it could be interesting to take advantage of the self-consumption plan without simplified compensation. To benefit from this plan, the consumer is obliged to register as an electricity producer, the energy poured into the network is paid at the current market price, to which the Tax on the Value of Electrical Energy Production is applied (7 %) and as it could not be otherwise, the consumer is obliged to pay taxes to the Treasury for the benefits obtained by selling energy to the network.
It is possible to change plans after one year has elapsed from the initial registration.
What type of solar panels are best?
Among the recognized manufacturers (Tier 1), there is no bad panel. Solar panel technology, both monocrystalline and polycrystalline, is nothing new. Although manufacturers introduce changes in their manufacturing processes and technical innovations such as the PERC and Half-Cell design to improve their performance, solar panels are already a sufficiently tried and tested product. In fact, most manufacturers guarantee a production of up to 80% of the initial production after 25 years. Did you know that panels degrade and lose production capacity throughout their life? Well, that’s how it is, but don’t worry, most photovoltaic installations pay for themselves in a much shorter period than the useful life of the panels.
If we want to rack our brains a bit thinking about which panels we are going to install, it would be more important to look at the total power of the solar field, determined by the individual potential of each panel and the number of panels, which will determine the energy production. . It is also important to decide what topology we want in the installation (1 string or 2 strings) or the location to avoid being covered with shadows.