Are you wondering how to interpret the evolution of the buy-back price for your photovoltaic electricity from EDF OA? This is a legitimate question, as understanding these rates is essential for evaluating the profitability of your solar installation. Prices are not fixed; they change, and it’s important to know why and how these changes affect you. This article will help you gain clarity on the evolution of EDF photovoltaic buy-back prices.
Key Takeaways
- Photovoltaic electricity buy-back rates are set by the Energy Regulatory Commission (CRE) and evolve quarterly, influenced by the number of connection requests submitted.
- The power of your solar installation is a determining factor for the buy-back rate. Small installations (< 9 kWp) benefit from different rates than medium (9-100 kWp) or large power installations (> 100 kWp).
- You have the choice between selling all of your production or only the surplus, with each option having its own rates and premiums, especially with the rise of self-consumption.
- To benefit from buy-back rates, your installation must meet several conditions, including a connection agreement (CRAE), an RGE-certified installation, and a maximum power of 500 kWp for simplified schemes.
- Expect a general downward trend in buy-back rates in the long term, although indexation to inflation may mitigate this effect on your income over the 20-year contract period.
Understanding the Mechanisms for Setting EDF OA Buy-Back Rates
The Role of the Energy Regulatory Commission (CRE)
The Energy Regulatory Commission, often abbreviated as CRE, plays a central role in determining the prices at which EDF, as the obligated buyer, buys back your solar electricity. It does not directly set the price on a day-to-day basis but establishes the frameworks and rules that guide these rates. Think of it as the referee ensuring the game is fair for all players in the solar energy market.
Specifically, the CRE publishes decrees that define the tariff conditions. These tariffs are then periodically revised, generally every quarter. This is why it’s important to stay informed about the latest publications to know the conditions in effect at the time of your project. The buy-back rate is a key element of your photovoltaic installation’s profitability.
The Impact of Connection Requests on Tariff Degressivity
One of the peculiarities of the solar electricity buy-back system is tariff degressivity. This means that buy-back rates are not the same for everyone, and more importantly, they tend to decrease over time. This evolution is directly linked to the number of connection requests for new solar installations. The more projects that come to fruition and are connected to the grid, the more the buy-back rates for new installations tend to decrease.
This mechanism aims to encourage the rapid development of renewable energies while controlling costs for the overall electrical system. It therefore incentivizes prompt action if you are considering embarking on a solar project. Rates are calculated based on reference periods, and once your contract is signed with EDF OA, the rate applied to you is guaranteed for a period of 20 years. This is an essential point to remember for the financial planning of your project.
The Validity Period of Tariffs and Their Indexation
When you sign a buy-back contract with EDF OA, the rate offered to you is guaranteed for a period of 20 years. This is an important security that allows you to project your income over the long term. However, it’s important to note that this rate is not set in stone. It is indexed to inflation, meaning it may slightly increase each year to account for the loss of currency value. This indexation is calculated using a coefficient, the L coefficient, which reflects changes in consumer prices.
It should be noted that small power installations, less than 9 kWp, benefit from a specific buy-back rate. For example, the buy-back rate for the surplus electricity from installations under 9 kWp is €0.0400/kWh for the first quarter of 2026. This rate is also guaranteed for 20 years. It is therefore possible to sell your surplus electricity to EDF OA even with a small installation, at a guaranteed long-term price. The purchase price of the surplus is an element to consider in your profitability calculation.
Analysis of the Evolution of Photovoltaic Buy-Back Prices by Installation Power
Rates for Small Installations (< 9 kWp)
For small solar installations, with a power of less than 9 kilowatts-peak (kWp), the conditions for EDF OA (EDF’s Purchase Obligation) to buy back electricity are particularly focused on self-consumption. The buy-back rate for selling the entire production is not applicable for these power levels. However, if you choose to sell the surplus electricity that is not consumed, a specific rate applies. For the first quarter of 2026, this rate is set at 4 euro cents per kilowatt-hour (c€/kWh). Additionally, an investment premium is offered, amounting to €80/kWp. This approach aims to encourage individuals to consume their own solar energy production.
Rates for Medium-Sized Installations (9 kWp to 100 kWp)
When you fall into the category of medium-sized installations, meaning between 9 kWp and 100 kWp, buy-back rates evolve based on your strategic choice: total sale or self-consumption with sale of surplus. For total sale, the rate is 9.11 c€/kWh for installations between 9 and 36 kWp, and it slightly decreases to 7.92 c€/kWh for those between 36 and 100 kWp. In the context of self-consumption with sale of surplus, the rate is more uniform, set at 5.36 c€/kWh for all these power levels. The investment premium also varies: €140/kWp for installations between 9 and 36 kWp, and €70/kWp for those between 36 and 100 kWp. It is interesting to note that the buy-back rate for total sale remains more advantageous, but self-consumption with sale of surplus is increasingly encouraged.
Tariff Conditions for Large Installations (> 100 kWp)
For large-scale photovoltaic installations, exceeding 100 kWp, the tariff landscape becomes more complex. Buy-back rates are no longer fixed lump sums as for smaller installations. For installations over 100 kWp and up to 500 kWp, projects are subject to a simplified tender process. For even larger installations, beyond 500 kWp, a CRE (Energy Regulatory Commission) tender process applies. These mechanisms aim to control costs and select the most efficient and economically viable projects. There is no direct investment premium for these categories; the valorization of production is done through the rates negotiated during these tenders. This means that the profitability of these large installations will heavily depend on the ability to win these tenders and the conditions offered therein.
The evolution of buy-back rates shows a clear trend: encouraging the production of solar energy for local consumption rather than for outright resale to the grid. Tariff schemes are adjusted to reflect this priority, making self-consumption increasingly attractive, especially for small and medium-sized installations.
Differentiating Rates Based on Electricity Sales Strategy
Buy-Back Rate for Total Production Sale
In the past, it was possible to sell all the electricity produced by your solar panels to EDF Obligation d’Achat (EDF OA). This option was particularly attractive for small and medium-sized installations. However, regulations have evolved. Today, for installations with a power of less than 9 kWp, selling the entire production is no longer an option. You are therefore automatically directed towards self-consumption with sale of surplus. For larger installations, selling the entire production remains possible, but it is essential to compare potential revenues with those of self-consumption.
Buy-Back Rate for Surplus in Case of Self-Consumption
Self-consumption means consuming your own solar electricity production. It has become the most common strategy, especially for individuals. You first use the electricity produced by your panels to power your appliances. What is not consumed instantly is automatically resold to EDF OA. The buy-back rate for the surplus is therefore compensation for the electricity you inject into the grid.
Here are the buy-back rates for surplus for the first quarter of 2026:
| Installation Power | Surplus Buy-Back Rate (€/kWh) |
|---|---|
| ≤ 3 kWp | 0.0400 |
| ≤ 9 kWp | 0.0400 |
| ≤ 36 kWp | 0.0536 |
| ≤ 100 kWp | 0.0536 |
It is important to note that these rates are guaranteed for 20 years from the date of signing your contract with EDF OA. They are indexed annually to inflation, which protects your solar income.
Evolution of Self-Consumption Premiums
In addition to the surplus buy-back rate, there are self-consumption premiums. These premiums aim to encourage the installation of solar panels by offering additional financial support. They are paid once, generally the year following the commissioning of your installation. The amount of these premiums depends on the power of your installation.
For small power installations (up to 9 kWp), the premium is calculated based on €100 per kWp installed. For example, for a 3 kWp installation, you could receive a premium of €300.
It is essential to fully understand the eligibility conditions and payment terms for these premiums, as they can vary. Inquire with the relevant authorities to know the exact amounts and the steps to follow.
These combined mechanisms make self-consumption particularly attractive. They allow you to reduce your electricity bill while generating additional income through the sale of surplus.
Contractual and Regulatory Conditions to Benefit from the Buy-Back Rate
To be able to sell your surplus solar electricity to EDF Obligation d’Achat (EDF OA) or your entire production, certain conditions must be met. It’s not just a matter of installing panels; there’s an administrative process and rules to follow. Think of it like signing a contract: both parties must adhere to a framework.
The Connection, Access, and Operation Agreement (CRAE)
The key document for benefiting from the buy-back rate is the Connection, Access, and Operation Agreement, often abbreviated as CRAE. This contract is established for a period of 20 years. It formalizes your agreement with EDF OA for the purchase of your electricity. Whether you choose to sell your entire production or only the surplus in case of self-consumption, this contract binds you. It is important to note that the purchase rate assigned to you is guaranteed for this entire 20-year period. It is only indexed to inflation, which protects your income over the long term.
Requirements for the Installer and Installation
For your installation to be eligible for the buy-back rate, it must meet several criteria. First, the power of your installation must not exceed 500 kWp, which corresponds to approximately 1,300 panels. Second, the installation must be located in mainland metropolitan France. A particularly important point concerns the installer: they must be certified RGE (Reconnu Garant de l’Environnement – Recognized Guarantor of the Environment). This certification attests to the quality of the work performed and is a prerequisite for accessing support schemes, including the buy-back rate. The installation must also be located on a building, and the complete connection request must have been submitted after May 11, 2017.
Specifics of Simplified and CRE Tenders
It should be known that buy-back rates are not set arbitrarily. They are determined by the Energy Regulatory Commission (CRE) and published through tariff decrees. The quarterly evolution of these tariffs depends on the volume of connection requests recorded in the previous quarter. If many requests are made, the tariff may decrease for the following quarter; conversely, if there are few, the tariff may be maintained to encourage the development of the sector. For small power installations, up to 9 kWp, selling the entire production is no longer offered at the open window since 2026. Self-consumption with sale of surplus is therefore the only regulatory option. For example, the buy-back rate for surplus for typical residential installations (≤ 9 kWp) is set at €0.0400/kWh for the first quarter of 2026.
It is essential to understand that the buy-back rate is a private law contract between you and EDF OA. Once your file is complete and accepted, the rate is guaranteed for 20 years, indexed to inflation. This is a security for your solar income.
Here is a summary table of surplus sale rates for the first quarter of 2026:
| Installation Power | Surplus Sale Rate (€/kWh) |
|---|---|
| ≤ 9 kWp | 0.0400 |
| > 9 kWp and ≤ 36 kWp | 0.0536 |
| > 36 kWp and ≤ 100 kWp | 0.0536 |
Future Outlook and Trends in EDF Photovoltaic Buy-Back Price Evolution
Anticipating the Tendency for Tariffs to Decrease
It is important to note that photovoltaic electricity buy-back rates tend to decrease over time. This decrease is due to several factors, including the growing maturity of solar technology and the falling production costs of panels. You should therefore expect buy-back rates to be less advantageous in the coming years than they are today. It is therefore wise to finalize your project when conditions are most favorable.
The Impact of Inflation on Solar Income
Inflation can have a dual effect on your solar income. On one hand, it can increase the operating and maintenance costs of your installation. On the other hand, if buy-back rates are indexed to inflation, this could potentially offset some of this cost increase. It is essential to monitor the evolution of the reference index used for tariff indexation.
Evolution of Financial Aid Schemes
Financial aid schemes, such as self-consumption premiums, are likely to evolve. Historically, these aids were put in place to support the development of the sector and are often reduced or eliminated as the market matures and costs decrease. It is therefore probable that current aids will not be sustainable in their current form. It is important to stay informed about government announcements and regulatory adjustments.
Anticipation is key to optimizing the profitability of your solar installation. Understanding the mechanisms of tariff decreases, the influence of inflation, and the evolution of aid will allow you to make informed decisions for your photovoltaic project.
In Conclusion: Stay Informed and Adapt Your Strategy
As you have seen, the landscape of photovoltaic buy-back rates at EDF OA is evolving. Figures change, conditions adjust, and it’s easy to get lost. It is therefore important to closely follow these changes, especially if you have a project in mind or already own an installation. Remember to regularly check official information, as it is key to understanding how to optimize the profitability of your solar production. Don’t forget that the rate you sign today is guaranteed for 20 years, but new installations see their rates adjusted. Stay attentive, as a good understanding of these mechanisms will help you make the best decisions for your photovoltaic project.
Frequently Asked Questions
How do I know what EDF rate I will get for my solar energy?
The rate depends on the power of your installation and how you choose to sell your electricity. EDF OA (Obligation d’Achat) buys your energy at a price set by the Energy Regulatory Commission (CRE). This price changes slightly each quarter, especially if many people request to connect their installation. Therefore, it is important to check the current rates when you submit your request.
Will the buy-back price of my solar electricity change over 20 years?
Once you have signed your contract with EDF OA, the rate at which they buy your electricity is guaranteed for 20 years. However, for the sale of surplus in self-consumption, the rate is adjusted annually to account for inflation, which somewhat protects your income.
What is the difference between selling all my electricity and selling only the surplus?
Selling all your production means that EDF OA buys all the electricity your solar panels produce. Selling the surplus means you consume part of the electricity at home and only sell what you don’t use. The buy-back rates are generally different for these two options.
Who decides the price at which EDF buys my solar electricity?
It is the Energy Regulatory Commission (CRE) that sets these prices. It looks at how many connection requests there have been to adjust the rates. It’s a bit like a game where the more participants there are, the more the price can decrease for new ones.
Can I still sell all my production to EDF?
For small installations, up to 9 kWp, it is no longer possible to sell all of the production. You should rather consider self-consumption with sale of surplus. For larger installations, selling the entire production remains possible, but you must carefully check the current conditions.
What is the self-consumption premium?
It is a financial aid you receive if you choose self-consumption with sale of surplus. It is calculated in euros per kilowatt-peak (kWp) of your installation. This premium helps you make your solar project profitable more quickly, and it is paid in several installments over a few years.
