Installation of solar panels in Murcia – Cartagena – Almería

Self-consumption with solar panels for houses

Nowadays, thanks to the repeal of the “sun tax” it is possible to install solar panels at home to produce your own electricity. At the same time, you can also reduce your spent at Iberdrola, Endesa or any other electrical company .

All of this you can reach without solar batteries and by very easy and effective way; it`s 100% secure and without any risk. In the following paragraph we will go in depth in what an installation with or without the batteries consists of.

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The development of the solar energy especially of the self-consumption gives us a lot of benefits, for example:

  • It guarantees our customers the access to different cheaper options that are also environmentally friendly.
  • It contributes in reducing the necessity to be connected to the network.
  • It generates a major energetic independence and allows us to reduce greenhouse gas emissions.

Moreover, it is an activity that creates jobs that are united with ecological transition, as it was shown in all countries that surround us.

The technology that was applied in the development of the renewable energies, made them more beneficial and effective; to the point where they are able to produce electricity in less optimal conditions because of the sun or the wind. In the photovoltaic panels case, the price went down 80%, more than a decade ago.

Everything is thought to make the saving and the effectiveness to form a part in a daily household behavior. In the case of the connected installations, the consume is mainly centered at daytime hours, to use its own energy.

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Self-consumption – solar panels WITHOUT batteries.

This modality of self-consumption is more extended and used all over the world. It consists of installing panels with a network connection and self-produce during the day the energy we might need in that exact moment. As we have the support of the electrical network, it is not necessary to install batteries to have energy during the night or in rainy seasons. It is the best option for apartments and companies because of the speed of its amortization, about 5-7 years depending on the size of the installation

The main benefit is to stop paying for those kW/h self-produced during the day to the electric company, besides the low cost of this type of installations About 4200 euros for 6 solar panels and 6400 euros for 12 solar panels)

With his type of installation, the energy that we don’t consume, returns to the electrical network. At the end of the month your company values that energy and offset it with the energy that was spent during night-time hours Thanks to this economic compensation from the solar excess, we don’t need any battery to save the leftovers as a storage

Self-consumption- Solar panels with battery
installation of solar panels

Are batteries necessary? It depends

In this modality, the energy that we don’t consume saves automatically in batteries, that we use as a storage. Latter we can use for example when it is a bad weather or at night.

This is a perfect solution for all the houses without any energy provider. We produce an excess of the energy during the day, so we can use it during the night. This way we avoid paying to any type of the electric company every month.

Also. It`s a very good option for those houses where the network power is limited.
For example: we have contracted just a small amount of power, only 2,5 kW and we need to extend it, but the company doesn’t allow us or asks us for a lot of money In that case this system can work the isolated way or also proved those extra Kw of power that we need over those 2,5kW

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Compensation of excess solar energy.

How much do the solar panels installation in Murcia cost ?
This is the most interesting point for a lot of people. Does it have any profitability and how can we measure it? Is it realistic? The answers to these questions are different depending on the situation. Let see some examples to clarify this issue.

Example 1: A house with 6 solar panels without a battery;

In the Region of Murcia, we obtain a production of 1710kWh in the year for each Kw that was installed. (Information from a European PORTAL PVGIS). So, one installation of 6 panels with 410 W (2,4 Kw) is able to produce 4078kWh. If we have a look at the electricity bill and multiply it for that price of the energy with all the taxes included, we get: 4078kWh x 0,17E/kWh we save 693,26 euros per year. If we also lower the assigned power for the provides power by solar panels, the saving is higher. If the installation can be valued in 4200 euros approximately, we can amortize it in 6,3 years, without counting any price changes in electricity.

Example 2: A house with 12 solar panels without a battery;

In the Region of Murcia, we obtain a production of 1710kWh in the year for each Kw that was installed. (Information from a European PORTAL PVGIS). So, one installation of 12 panels of 410W (4,9) will be able to produce 8300kWh. If we have a look at the electricity bill and multiply it for that energy price with all the taxes included, we get: 8300kWh x 0,17 euros/kWh and can save around 1400 euros per year. If we also lower the assigned power provided by the solar panels, the savings is higher. If the installation can be valued in 5200 euros, we can amortize it in 5,6 years, without counting any price changes in electricity.

All in all, it is better to make a personalized study for each case and dimension the system according to your real necessities the cases. Our commercial department with help you and do the study of one particular case, offering you better solutions to adapt to their consumption habits. Each client has some particular necessities as it doesn’t exist a universal installation to fit all of them.

¿Cómo funciona nuestra propuesta?

energia solar cartagena

¿Que mejor forma de explicarlo que mostrando la monitorización que incluyen los equipos?

En la gráfica podemos observar como consumimos de forma instantánea la energía generada por nuestra instalación (De color GRIS). Toda esta energía autoconsumida es energía que dejamos de comprar a la empresa suministradora.

En VERDE tenemos la energía que nuestra instalación ha producido pero no hemos consumido. Esta energía que nos sobra es inyectada a la red eléctrica y en la proxima factura nos compensarán a 0,05€ por Kw/h. De esta forma compensaremos este saldo a favor con el consumo nocturno.

Finalmente en BLANCO tenemos el resto de la energía que hemos consumido en nuestra instalación. Esta se verá compensada en la factura de electricidad con la parte de color VERDE. Este sistema monitorización energética además nos servirá para controlar el consumo energético de nuestra instalación.