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What is shared self-consumption and how can your community of residents benefit from it?

Do you know what shared self-consumption is? We explain this sustainable saving method and how to use it.

More than half of Spaniards live in blocks of flats. Shared self-consumption is an opportunity to produce clean and sustainable energy, saving on the electricity bill. What is shared self-consumption and how can your community of residents benefit from it? We explain it to you in a simple way.

 

What is shared self-consumption?

This model is used in blocks of flats, industrial estates or energy communities in which photovoltaic panels are installed and which generate electricity that can be used by several connected consumers. In Spain, this is governed by Royal Decree 244/2019, of 5 April.

 

What are its benefits?

It offers several benefits:

  • Generation and use of non-polluting and sustainable energy.
  • It is free from tolls and charges.
  • It is a way of saving: you cover the installation costs quickly by saving on your energy consumption. After you recover these costs, all energy generated will increase your saving capacity. Finally, some towns and cities provide tax benefits to communities of residents that choose shared self-consumption.

 

What requirements must be met to share energy?

According to Royal Decree 244/2019, for collective self-consumption, some conditions must be fulfilled in the production installation:

  • Be connected to the internal network of associated consumers.
  • Be connected to any low-voltage network of the same transformation centre.
  • There must be a maximum distance of 500 metres between the installation and the consumers, and a maximum distance of 1,000 metres if the installation is on a roof.
  • The installation and consumers must be listed in the same land register (according to their first 14 digits).

The process has been simplified in recent years, but it depends on your autonomous community and city's regulations.

Shared self-consumption modes

The Law establishes three types of shared consumption modes:

  • Shared self-consumption without surplus: these installations are usually equipped with a zero-injection system that prevents surpluses from being produced and injected into the grid.
  • Shared self-consumption with surplus not eligible for compensation: the surplus generated can be sold on the electricity market with this option. The residents' association must be registered as an energy producer in the Administrative Register of Electricity Production Installations (RAIPRE) or have a representation agreement in the market with its distributor. These options are complex and are usually discarded by domestic consumers.
  • Shared self-consumption with surplus under a simplified compensation system: you will see such compensation in the form of discounts in your electricity bill.

 

Sharing energy between communities of residents

Self-consumption is an opportunity for communities of residents, especially from the point of view of savings, as described above. Communities of residents can start with a basic installation, in which the energy generated provides the power supply required in different areas, such as lighting of common areas (main hall, corridors, parking) or elevators. Another more advanced model would involve supplying the energy generated by the photovoltaic installation to residents' homes. Finally, some communities of residents may choose a flexible model, in which residents can choose when they wish to select the self-consumption mode. It is possible to apply constant production sharing coefficients throughout the year or variable hourly sharing coefficients for each hour of the year.

The Law establishes that at least 75% of the community's residents must agree to implement the self-consumption system. In addition, the community of residents must establish the terms and conditions (generated energy distribution criteria, installation mode and type, final quote, etc.) in an agreement that must be signed by participating neighbours.

 

How can you start saving with the shared self-consumption option?

One of the main advantages of a self-consumption installation is the associated savings, as mentioned above. From the point of view of a community of residents, savings can be achieved as follows:

  • Less dependence on energy prices: by producing your own energy, you depend less on the changes in market prices and economic cycles.
  • Low infrastructure and commissioning costs: solar installations can now be optimised in terms of efficiency and cost. The larger the installation, the lower the unit cost per kW of installed power. In addition, the cost is divided by the consumers of each residents’ association, so it is lower.
  • Available surfaces: communities of residents usually have large areas in which these installations can be built, especially rooftop areas that are usually underused.
  • Recovery of the cost of installation in the short and medium-term: the investment involved in the installation begins to pay for itself immediately when generating energy in two ways: savings in grid energy consumption, which is now self-consumed by the installation, and the monetisation of the surpluses, either through compensation in the electricity bill (when it is subject to simplified compensation) or by selling it on the electricity market (shared self-consumption with surpluses not subject to compensation).

Endesa will provide you with the advice you need, regardless of whether you already have your own self-consumption solar panel installation or you do not have one but are interested in installing one.

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Comparison of Electricity and Gas Tariffs

You don't need to adapt to Endesa's tariffs because they adapt to you. If you go to our catalogue you can compare the different tariffs for yourself. Or if you prefer, you can answer a few questions and we will take care of comparing all the different electricity and gas tariffs and then make a customised recommendation.

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