Key data
| Regulation | Resolution of 1 July 2026, from the General Directorate of Energy Policy and Mines |
|---|---|
| BOE Publication | 7 August 2026 |
| Effective date | 1 July 2026 |
| Developer | Desarrollos Renovables Eólicos y Solares, SLU |
| Project | «Taraguilla» wind farm — file PEol-468 |
| Installed capacity | 62.7 MW |
| Affected municipalities | Los Barrios and San Roque (province of Cádiz) |
| Category | Energy / Renewables |
| Regulatory framework for withdrawal | Royal Decree-Law 29/2021 |
A wind project of 62.7 MW that had been in processing since 2020 has just been definitively archived. The General Directorate of Energy Policy and Mines has accepted the withdrawal of Desarrollos Renovables Eólicos y Solares, SLU regarding the «Taraguilla» wind farm, located in the municipalities of Los Barrios and San Roque in Cádiz. File PEol-468 is now closed.
The resolution, dated 1 July 2026 and published in the BOE on 7 August 2026, ends a process that clearly illustrates the two major risks that can sink a renewable project in Spain: insufficient quality of the environmental impact assessment and withdrawal from access and connection permits under the umbrella of the Royal Decree-Law 29/2021.
What does this regulation establish?
The resolution formally accepts the withdrawal submitted by Desarrollos Renovables Eólicos y Solares, SLU, regarding the request for prior administrative authorization and administrative construction authorization of the Taraguilla wind farm and its associated evacuation infrastructure.
The chronology of file PEol-468 is as follows:
- 2020: Start of the administrative authorization request process.
- December 2021: The environmental impact assessment (EIA) is rejected by the competent authority for insufficient quality.
- January 2022: The developer voluntarily withdraws from network access and connection permits, invoking RDL 29/2021.
- 2022–2026: Processing of several hearing procedures before resolving the definitive filing.
- 1 July 2026: The General Directorate of Energy Policy and Mines accepts the withdrawal and files the case.
As a consequence of the filing, the developer is enabled to recover the economic guarantees deposited in the General Deposit Fund at the time to guarantee the processing of the project.
Economic and operational impact
For the developer, the closure of the file has a dual reading. On one hand, it represents the definitive loss of a project of 62.7 MW which, at current market prices, would represent a generation capacity and energy sales revenues that are highly relevant. On the other, the recovery of the guarantees deposited in the General Deposit Fund is the only recoverable asset from the entire process.
From the sector's perspective, this case highlights two hidden costs that developers must incorporate into their risk analysis:
- Opportunity cost: More than six years of processing (2020–2026) without building a single wind turbine.
- Cost of EIA quality: An environmental impact assessment rejected in December 2021 was the trigger that precipitated the entire chain of abandonment. Investing in an insufficiently quality EIA can cost much more than the initial savings.
- Regulatory cost of RDL 29/2021: The regulation offered a window for developers to voluntarily withdraw from access and connection permits without penalty, but it also revealed the fragility of many projects in the portfolio.
Who does it affect?
- Renewable energy developers with wind projects in processing in Spain, especially in Andalusia.
- Investors and funds with participation in renewable project portfolios in pre-construction phases.
- Legal and technical advisors who accompany administrative authorization processes for wind farms.
- Energy sector companies that evaluate acquisition of projects in development ("RTB projects" or "ready to build").
- Local administrations of Los Barrios and San Roque (Cádiz), which see an industrial investment in their territory cancelled.
- Environmental consultancies that prepare environmental impact assessments for renewable generation projects.
Practical example
Imagine a developer that has in its portfolio a wind project with characteristics similar to Taraguilla: 60 MW of capacity, in processing since 2020, with the environmental impact assessment commissioned to a low-cost consultant to save in the initial phase.
In December 2021, the environmental authority rejects that EIA for insufficient quality, just as happened with Taraguilla. The developer, faced with the prospect of redoing the study and delaying the project another 12-18 months, chooses to invoke RDL 29/2021 and withdraw from access and connection permits in January 2022.
Result: four additional years of hearing procedures (2022–2026), the file archived, and as the only recoverable asset, the guarantees deposited in the General Deposit Fund. All the technical, legal and administrative work of six years yields no economic return. The direct lesson: a well-prepared EIA from the start is not a cost, it is an investment in project protection.
What should companies do now?
- Audit the quality of EIAs in portfolio: Review all environmental impact assessments of projects in processing to detect possible deficiencies before the authority rejects them. A rejected EIA can be the beginning of the end of a project.
- Evaluate the status of access and connection permits: Identify which projects have valid permits and which could be at risk of expiration or withdrawal, especially if the EIA is pending resolution.
- Review guarantees deposited in the General Deposit Fund: If a withdrawal has occurred or will occur, initiate procedures for the recovery of economic guarantees deposited.
- Analyze the impact of RDL 29/2021 on own projects: Check if any project in the portfolio invoked the permit withdrawal window of this royal decree-law and what administrative status it currently has.
- Incorporate environmental risk into viability analysis: Update risk models for renewable projects to explicitly include the cost and time of a rejected EIA as a possible scenario.
Frequently asked questions
Why was the Taraguilla wind farm cancelled?
The project was cancelled due to a combination of two factors: the environmental impact assessment was rejected in December 2021 for insufficient quality, and the developer —Desarrollos Renovables Eólicos y Solares, SLU— voluntarily withdrew in January 2022 from access and connection permits, invoking Royal Decree-Law 29/2021. After several hearing procedures between 2022 and 2026, the General Directorate of Energy Policy and Mines accepted the withdrawal and archived file PEol-468.
Can the developer recover the deposited economic guarantees?
Yes. The resolution of 1 July 2026 expressly enables the developer to recover the economic guarantees deposited in the General Deposit Fund. It is the only recoverable asset after the filing of the case.
What is RDL 29/2021 and how was it used in this case?
Royal Decree-Law 29/2021 offered renewable project developers a window to voluntarily withdraw from their network access and connection permits without penalty. Desarrollos Renovables Eólicos y Solares, SLU invoked this possibility in January 2022, following the rejection of the environmental impact assessment, as a way to exit the process without additional costs for non-compliance.
How long did the administrative process for the Taraguilla farm take?
The process began in 2020 and the file was archived by resolution of 1 July 2026, published in the BOE on 7 August 2026. In total, the administrative process lasted more than six years without the project being built.
What practical lesson does this case leave for other wind developers?
The main lesson is that an environmental impact assessment of insufficient quality can trigger the abandonment of a large-scale project. In the case of Taraguilla, the rejection of the EIA in December 2021 was the trigger that led the developer to withdraw from access and connection permits a month later. Investing in a rigorous EIA from the start is a measure to protect the project, not a dispensable cost.
Official source
Consult complete regulation in official source
Notice: This article is for informational purposes only and does not constitute legal advice. For specific decisions, consult a qualified professional. Source: https://www.boe.es/diario_boe/txt.php?id=BOE-A-2026-17271