Creos opens up the opportunity for you to play an active role in energy distribution within the Luxembourg electricity grid. On this page, you'll get an overview of the energy sharing options available to you, helping you to effectively utilize and share the energy you produce.
Collective self-consumption allows you to share with others renewable electricity produced in a building or its immediate neighbourhood. Ideal for buildings (residencies, office complexes), this option facilitates the use of communally generated energy from sources like solar panels, leading to a reduction in your electricity bill.
Energy communities offer the opportunity to extend energy exchange beyond the local environment. As officially registered legal entities, they create added value for their members and the local community by prioritizing ecological, economic, and social benefits over profit-making.
Setting up a Sharing Group is a key step when you want to share energy within an energy community or through collective self-consumption. Sharing Groups are virtual constructs to be established by the electricity grid operator, bundling all involved production and consumption points, allowing the energy distribution among participating meters to be calculated based on the chosen repartition key. The process begins with selecting a representative who coordinates communication between participants and Creos. By completing the relevant convention, you set the process in motion for Creos to establish the Sharing Group and start energy distribution. We are, of course, available to assist you with any uncertainties.
I would like to create a sharing group:
I would like to manage my sharing group:
As your partner, Creos guides you on the path to a communal and sustainable energy future. Learn about the various models of energy distribution we offer and take advantage of our support to find the right solution for your needs. If you need further help finding the right sharing group for you, contact us at sharingenergy@creos.net.
Collective self-consumption allows you to share renewable electricity with others in a building or its immediate neighbourhood. Ideal for multi-family homes or office complexes, this option facilitates the use of communally generated renewable energy from sources like solar panels, leading to a reduction in your electricity bill.
Collective self-consumption allows a group of consumers and producers of renewable energy to join together by means of an agreement to share the generated energy they have produced among themselves. As long as the restrictions outlined below are adhered to, members benefit from certain exemptions from certain taxes and charges for the renewable electricity shared or stored within the group. Renewable electricity is shared in proportion to each member's consumption, which is the default sharing method, or according to a specific repartition key.
This Sharing Group is intended for consumers and producers sharing renewable electricity within the same building. There is no limit to the number of members nor the voltage level, as long as they are located on the same site.
Up to three collective self-consumers of renewable energy, connected to the low-voltage network of a single distribution system operator, where the distance between the two furthest injection or withdrawal points does not exceed 100 metres.
This Sharing Group type is intended for a single user that has multiple production and consumption points on the low-voltage network of a single distribution system operator. All the consumption and production points must belong to the same person or company. In this case, grid usage fees are applicable as the power grid is used for sharing the energy. However, small-scale installations remain exempt from the electricity tax for the shared portion of the energy.
Before you begin sharing your renewable electricity with neighbours, you must nominate a representative who will be responsible for ensuring the exchange of information between Creos and the members of the collective self-consumption scheme throughout its existence (creation of the collective self-consumption, choice of sharing method, new member, withdrawal of a member, change of sharing method, etc.).
After setting up the Sharing Group by Creos, the generated energy within the group is distributed according to the selected repartition key. The renewable electricity is used collectively, leading to a corresponding reduction in the individual energy consumption obtained from each member's electricity supplier.
Creos calculates the energy exchange for each member by determining how much energy each has either received from or supplied to the Sharing Group. Any applicable fees are applied to the shared energy and will be invoiced by the respective electricity supplier. However, the billing for the shared energy among the members is not managed by Creos; it is the responsibility of the members themselves. Creos provides the representative of the Sharing Group with the necessary load curves required for billing reconciliation.
You can easily create your application in just a few steps via your customer portal in myCreos.
As the representative of your sharing group, you are responsible for organising and communicating with Creos and must carefully complete the application on myCreos. You must define the members of your sharing group and their metering points, i.e. the places where energy is generated and consumed. You can also define a model for the individual distribution of energy. If no individual distribution has been defined, the renewable electricity will be distributed in proportion to the consumption of the individual members. Once you have submitted your application, Creos will contact you to determine the nature of your sharing group. An agreement will be drawn up which you, as the representative, and the members must sign.
This agreement regulates the conditions for sharing the electricity you generate within your sharing group. Any change (new member, withdrawal of a member, change in the distribution key, etc.) must be communicated to Creos at least one month in advance to ensure the smooth functioning of your sharing group.
If you have any further questions, please contact us at sharingenergy@creos.net.
Energy communities at Creos open new ways to share and utilize energy not only locally but also nationally. This approach promotes efficient and sustainable organization of energy production and consumption while strengthening electricity sharing.
An energy community is a collective of energy consumers and/or producers, legally organized as a single entity. It enables its members to use energy collectively and efficiently, maximizing local, sustainable energy use. The primary goal is to promote sustainable energy sources and share the energy produced within the community.
Before you can set up a Sharing Group at Creos, you must:
1. Establish a legal entity intended to manage your Energy Community. Follow the Klima-Agence for further guidance. When you set up this entity, you must officially designate the person who will be your representative (minutes of the general meeting, etc.) as described below.
2. Register your Energy Community with the national regulatory authority ILR. Follow the ILR for further guidance.
3. Apply at Creos to establish your own Sharing Group. See below next steps.
After your Energy Community is officially registered at the ILR, you can apply at Creos for the establishment of a Sharing Group, which aims to organize and calculate the electricity flows of your energy community by coordinating all production and consumption points and distributing energy according to each member's consumption or a specifically configured repartition key
The renewable electricity is used collectively, leading to a corresponding reduction in the individual energy consumption obtained from each member's electricity supplier. Creos calculates the energy exchange for each member by determining how much energy each has either received from or supplied to the Sharing Group. Any applicable fees are applied to the shared energy and will be invoiced by the respective electricity supplier. However, the billing for the shared energy among the members is not managed by Creos; it is the responsibility of the members themselves. Creos provides the representative of the Sharing Group with the necessary load curves required for billing reconciliation.
There are three types of Sharing Groups available for your Energy Community:
This sharing group is intended for small, local networks where members are so close that the furthest points are no more than 300 meters apart in a straight line. All members must be connected to the same low-voltage network, and the energy community benefits from an exemption from grid usage fees. The generated and shared electricity must be 100% renewable, including the energy used to charge battery storage systems. Small installations within this community can also benefit from an exemption from the electricity tax.
This sharing group is intended for more extensive Energy Communities whose members and installations go beyond the local level and can be distributed throughout the country, on any voltage level (low, medium or high voltage). In addition to purely renewable energy sources, these communities can also use energy from highly efficient combined heat and power plants. CERs share energy on a national level, using the electricity grid, resulting in grid usage fees. However, small installations within these Sharing Groups benefit from an exemption from the electricity tax.
The CEN option extends the flexibility of energy communities by also allowing non-renewable energy sources. These energy communities operate on the same principles as CER, but without the possibility of electricity tax exemption for members, even if they are small installations.
You can create your energy sharing request in just a few steps via your myCreos customer area.
As a representative, you must be designated by a written document ( a record of a meeting, ...) and are responsible for ensuring the exchange of information between Creos and your Sharing Group throughout its existence (creation of the energy community, choice of sharing mode, new member, departure of a member, change of sharing mode, etc.). If any changes occur, they must be communicated to Creos at least one month in advance to ensure the smooth running of your sharing group.
As the representative of your Energy Community, you are responsible for carefully completing the application on myCreos. You must define the members of your community and their metering points, i.e. the places where energy is produced and consumed. You can define an individual allocation model. Otherwise, the renewable electricity will be shared in proportion to each member's consumption. After submitting your request, Creos will contact you to define the type of your sharing group. An agreement will be drawn up, which you, as the representative, and the members will have to sign.
This agreement governs the conditions for sharing the electricity you produce within your energy community. Any changes must be notified to Creos at least one month in advance to ensure the smooth running of your sharing group.
If you have any further questions, please contact us at sharingenergy@creos.net.
Welcome to our support page for configuring your distribution model within your Sharing Group.
You have the choice between two models:
The electricity amounts are distributed to the members of the distribution group every quarter of an hour based on the previous day's metering data. For each quarter of an hour, it is determined whether the repartition models are applied on the generation or consumption side. If the total generation within the distribution group in a quarter of an hour is less than the total consumption, the distribution models stored at the consumption metering points are applied. However, if the total generation exceeds the total consumption, distribution takes place on the generation side.
Application: Metering points are prioritised (1, 2, 3, etc.) and receive energy first, starting with the highest priority.
Example: Metering point A with priority 1 requires 20 kWh, and metering point B with priority 2 requires 30 kWh. With an available electricity quantity of 40 kWh, metering point A first receives its required 20 kWh before metering point B is assigned the remaining 20 kWh.
Special Note: It is possible to give the same rank to several metering points, in which case the electricity will be shared in proportion to each member's consumption.
Application: Metering points are allocated a maximum percentage of electricity.
Example: For metering points C and D, each set to receive 30% of the electricity, and an available quantity of 100 kWh, each metering point can receive a maximum of 30 kWh.
Application: This repartition model can be used in combination with the priority repartition model. In this case, the metering points that benefit from the priority repartition model will be supplied with electricity first, followed by the metering points that benefit from the percentage repartition model.
Example: If metering point A and B have the priority 1 and 2 and C and D have 30% of the energy, A will receive the electricity it needed, then B, and C ans D each receive 30 % of the remaining electricity.
Special Note: As Each metering point can, of course, only receive as much energy from an Sharing Group per quarter-hour as it has consumed itself, if a metering point receives all the electricity he needs, the remaining electricity will then be distributed to the metering points that still need electricity. That’s why in percentage repartition, you can specify whether remaining quantities should be allocated through the prorata repartition model within the Energy Sharing Group. If "Distribute Remaining Quantities" is enabled for metering point C in the previous example, and it has consumed 35 kWh in the considered quarter-hour, it receives the missing 5 kWh from the subsequent prorata repartition model, ultimately exceeding its defined 30%. "Distribute Remaining Quantities" maximizes the energy distributed within a Sharing Group and should generally be activated when choosing percentage repartition, unless explicitly prohibited.
Application: The prorata repartition model is applied when no specific priority or percentage is assigned to metering points via Annex 3, or if this is not completed correctly. The electricity is then shared in proportion to each member's consumption.
Example: Metering point A requires 20 kWh, and metering point B requires 40 kWh. With an available energy quantity of 30 kWh, metering point A receives 10 kWh, exactly half of what metering point B is assigned based on the prorata repartition model, as it only consumed half compared to metering point B in the considered quarter-hour.
Application: Repartition models are configured individually for each metering point, for both consumption and production metering points within a Sharing Group. Therefore, it is possible to assign a priority to one metering point, a percentage to a second metering point, and provide no specification for a third metering point, which corresponds to a Prorata Repartition. In the calculation, electricity is always distributed according to priority allocation first, then percentage allocation, and finally pro rata allocation.
Example: Metering point A has priority 1, metering points B and C each receive 30%. Metering point D has neither a rank nor a percentage, and therefore, it receives energy based on the Prorata Repartition. After distribution to A, B, and C receive their share from the percentage allocation. The percentage values are applied to the remaining production after the application of the priority distribution. The remaining energy is then distributed to D through the Prorata Repartition.
Imagine we have a large water container symbolizing our Sharing Group. In this container, energy is collected in the form of water. Producers, such as solar panels or wind power plants, channel the "water" produced within a quarter-hour into this container. Each consumer has a bottle, the size of which corresponds to their energy consumption in that quarter-hour.
At the outset, it is determined whether the distribution occurs on the production or consumption side. The container cannot hold more water than the total consumption.
Example: If a total of 100 liters of water (energy) is consumed in a quarter-hour but only 80 liters are produced, the distribution occurs on the consumption side.
Priority Repartition Model: Consumers with the highest priority are given the opportunity to fill their bottles at the container first.
Example: Consumer 1 with the highest priority has a bottle that holds 20 liters. He fills his bottle completely, leaving 60 liters in the container.
Percentage Repartition Model: Subsequently, consumers who are entitled to a predetermined percentage of the remaining energy participate.
Example: Consumers 2 and 3 each claim 30% of the container. Since there are 60 liters available, each fills their bottle with 18 liters, leaving 24 liters.
Prorata Repartition Model: The remaining energy is distributed proportionally to the consumption of consumers.
Example: Consumer 4 has a 10-liter bottle, and Consumer 5 has a 20-liter bottle. From the remaining 24 liters, Consumer 4, according to his needs, receives 8 liters, while Consumer 5 receives 16 liters.
Additional Energy Acquisition: Consumers whose bottles were not filled completely must obtain the missing quantity from their electricity supplier.
If production exceeds consumption, it is determined which producer is allowed to channel their water into the container first. Excess water that doesn't fit into the container is transferred to the balancing group of the designated electricity buyer.
Example: If A and B together produce 120 liters but the total consumption is only 100 liters, Producer A with Priority 1 is allowed to channel up to 100 liters into the container first. Producer B transfers its excess 20 liters to the balancing group of its electricity buyer.
Sharing groups undergo many changes – you might wish to add new members, change the repartition key for the shared energy, or perhaps somebody moved. Creos is happy to guide you through the process and make the necessary changes for you.
Each Sharing Group has nominated a representative in the Annex 1 of its Convention whose task is to communicate to Creos the information necessary for the smooth operation of electricity sharing.. Only they may request changes at least one month before the event, so that the Sharing Group can continue to operate smoothly.
If you are the nominated representative, please use the modification form to communicate the changes that need to be made to Creos. Multiple changes can be combined into one, as long as you indicate how many times and from what date the new configuration should be applied. The annex corresponding to the changes must also be signed by the appropriate parties and included in the request to sharingenergy@creos.net. We remind you that changes should be communicated to Creos at least one month before they enter into force.
Each change request is communicated through the Modification Form and the appropriate annex or form. Below you can find the required documentation for each case.
It is important to keep in mind that if a custom repartition key has been established, any modification of PODs or members would require an update of the repartition key as well. In those cases, both Annexes 2 and 3 need to be submitted and both requests need to be selected in the Modification Form.
In certain cases one Annex 2 might be enough to cover multiple changes at once. For example, if an existing member wants to replace a POD, the old one can simply removed and the new one added in the same document.
