Who pays for historical environmental violations after buying a power plant in Turkey? Learn how foreign investors can manage contamination, environmental fines, remediation costs, permits, warranties, indemnities and SPA risks.

Environmental liability can become one of the most expensive hidden risks in a power plant acquisition in Turkey. A foreign investor may purchase a profitable solar, wind, hydroelectric, geothermal or thermal generation company only to discover after closing that the facility has historical environmental violations, contaminated land, improper waste disposal, missing environmental approvals or an unresolved administrative investigation.

The key acquisition question is therefore not simply whether the power plant currently holds the required environmental documentation. The buyer must determine what happened at the facility before closing, who may legally be responsible for historical environmental damage and who will ultimately bear the financial cost under the acquisition agreement.

This distinction is particularly important because Turkish environmental law incorporates the polluter-pays principle and imposes strict liability on persons responsible for environmental pollution or damage. Under Article 28 of Environmental Law No. 2872, those responsible for pollution or environmental damage may be liable for resulting damage without a requirement to establish fault. (LEXPERA)

For a foreign buyer, environmental due diligence and carefully drafted SPA protection are therefore essential.

Why Environmental Liability Is Different From Ordinary Commercial Liability

Many commercial liabilities can be identified relatively easily from contracts, accounting records or pending litigation. Environmental liabilities are different because the underlying problem may physically exist at the project site without having generated a formal claim before closing. Contaminated soil, improperly stored hazardous material, historical wastewater discharge or an unreported environmental incident may remain undiscovered for years. The absence of an administrative fine does not necessarily prove that the project has a clean environmental history. In addition, environmental exposure can involve several separate consequences: administrative sanctions, remediation expenditure, third-party compensation claims, operational restrictions and disputes concerning permits. Environmental Law No. 2872 prohibits pollution and requires measures to prevent pollution where there is a risk and to stop, eliminate or reduce pollution where it has occurred. (LEXPERA) A buyer should therefore investigate both legal compliance and the physical environmental condition of the facility.

The Polluter-Pays Principle in Turkey

The basic principle is that the cost of pollution should be borne by the party responsible for causing it. Turkish environmental legislation provides that expenses incurred for preventing, limiting and remedying environmental pollution and deterioration are to be borne by the polluter or the party causing the deterioration. Where public authorities themselves undertake necessary measures because the responsible party has failed to act, those costs can be recovered from the polluter. (TBMM CDM) This principle is important for acquisition structuring because environmental liability cannot always be eliminated merely by contractual language between seller and buyer. The SPA can allocate the economic burden between the parties, but it does not necessarily prevent competent authorities or third parties from exercising rights available under mandatory law. The buyer therefore needs both regulatory analysis and contractual recourse against the seller.

Strict Liability for Environmental Damage

Article 28 of Environmental Law No. 2872 creates a particularly significant rule for investors. Persons causing environmental pollution or damage are responsible for the resulting pollution and deterioration without fault being required. General compensation liability also remains available. (LEXPERA) This means that an environmental defense cannot always be based simply on an argument that the operator acted carefully. For acquisition purposes, the buyer should identify who conducted the activity that caused the pollution, when the pollution occurred, whether it continues and whether the target company itself was the operator responsible for the relevant activity.

Share Deal: Why Historical Environmental Risk Can Remain Inside the Target

A share acquisition creates particular exposure because the target company remains the same legal entity before and after closing. Only its shareholders change. Suppose a Turkish project company operated a power plant for ten years before being sold to a foreign investor. If the company itself committed environmental violations during those ten years, purchasing its shares does not erase the company’s history. An investigation, compensation claim or remediation obligation emerging after closing may therefore affect the company now owned by the foreign buyer. From an economic perspective, the buyer can effectively pay for the seller-period violation unless the SPA provides effective recourse against the seller. This is why environmental warranties and indemnities are especially important in energy-company share acquisitions.

Asset Deal Does Not Automatically Eliminate Environmental Risk

Foreign investors sometimes assume that an asset acquisition completely solves historical environmental liability because they do not acquire the seller’s company. That assumption can be dangerous. Environmental obligations may be connected with the facility, land, continuing activity or specific circumstances surrounding the pollution. Property law, administrative law and other mandatory rules must therefore be examined separately. The buyer should investigate whether the physical site is contaminated, whether remediation is required and whether operation of the acquired facility could expose the new operator to continuing obligations. An asset deal may provide better separation from certain historical company liabilities, but it should never be treated as an automatic environmental-liability shield.

Contaminated Land Is a Major Acquisition Risk

Land contamination deserves particular attention when acquiring thermal plants, geothermal facilities, industrial cogeneration plants, older generation facilities, fuel-storage sites or projects located on previously industrial land. The buyer should determine how the site was historically used and whether potentially hazardous substances were stored, discharged or disposed of there. Physical environmental assessment may be necessary in addition to legal document review. If contamination is discovered after closing, remediation costs can substantially exceed the amount originally reserved in the acquisition model. The SPA should therefore clearly allocate known contamination risks and address undiscovered historical contamination where commercially appropriate.

Historical Waste Disposal

Waste-management practices should be investigated carefully. The buyer should review waste records, contractor arrangements, hazardous-waste documentation and previous inspections. Turkish environmental legislation imposes obligations concerning proper treatment and disposal of waste and provides specific rules concerning hazardous chemicals and hazardous waste. (LEXPERA) Historical improper disposal can create problems even if the power plant currently uses compliant waste-management procedures. Foreign buyers should therefore ask not only, “How is waste managed today?” but also, “How was waste managed throughout the seller’s ownership period?”

Environmental Permits and Licenses

The buyer should identify every environmental authorization required for the particular generation facility and verify its current status. The analysis will vary depending on technology. A solar project generally has a different environmental risk profile from a thermal, geothermal or hydroelectric facility. The due diligence should determine whether permits were obtained when required, whether conditions were complied with and whether modifications to the project required additional approvals. The existence of a generation license does not itself establish compliance with environmental law. Licensed electricity projects must obtain various approvals and permissions during their development process, and environmental requirements form part of that broader regulatory framework. (EPDK)

Environmental Impact Assessment Risks

The Environmental Impact Assessment history of the project should be examined carefully. The buyer should obtain the relevant decisions and determine whether the power plant actually constructed corresponds with the project that underwent environmental review. Capacity expansions, additional units, transmission infrastructure or material technical modifications may require separate analysis. Environmental Law No. 2872 establishes the environmental assessment requirement for projects capable of causing environmental problems and links relevant project approvals to the applicable environmental assessment process. (TBMM CDM) A foreign investor should therefore investigate not only whether an environmental decision exists but whether it accurately covers the facility being acquired.

Pending Environmental Litigation

Environmental approvals can be challenged through administrative proceedings. The buyer should investigate existing and threatened cases involving local residents, landowners, municipalities, environmental organizations or other interested parties. A power plant may be operational while litigation concerning an underlying environmental approval remains pending. Such litigation can affect project value even if the seller believes the challenge will ultimately fail. The SPA should require comprehensive disclosure of environmental litigation and administrative proceedings.

Administrative Environmental Fines

Historical violations may lead to administrative penalties. The buyer should obtain records concerning inspections, notices, fines and communications with environmental authorities. Environmental fines should not be treated as insignificant simply because they represent a relatively small percentage of the purchase price. A fine can indicate a broader compliance problem that may generate remediation obligations or repeated sanctions. Turkish constitutional case law has also recognized the enforcement of administrative environmental penalties in circumstances involving failures relating to hazardous waste disposal. (Anayasa Mahkemesi)

Important 2026 Environmental Law Changes

Foreign investors completing acquisitions in 2026 should use the current environmental framework rather than relying on older due diligence reports. Amendments published in May 2026 changed provisions of Environmental Law No. 2872, including environmental management obligations. The amended framework requires institutions, organizations and businesses whose activities may cause environmental pollution or damage to obtain environmental management services, while environmental consultancy firms have notification duties concerning identified violations. This makes historical environmental-management documentation and internal reporting particularly relevant in 2026 acquisition due diligence.

Environmental Management Records Can Reveal Hidden Problems

The buyer should request environmental management reports, consultant reports, inspection records, internal incident reports and communications concerning non-compliance. These documents can reveal risks that do not appear in formal litigation searches. If an environmental consultant previously identified repeated violations but management failed to correct them, that information can materially change the buyer’s risk assessment. The 2026 amendments make environmental management and reporting compliance even more important when evaluating ongoing operations.

Water Pollution Risks

Power plants using significant water resources require additional investigation. Depending on the project, this may include cooling systems, wastewater, geothermal fluids or other discharges. The buyer should review permits, monitoring results and historical incidents. Water-related environmental violations can create remediation and operational risks in addition to administrative sanctions. The May 2026 amendments also revised certain provisions concerning waste discharge into protected drinking and utility water areas and related water systems. (LEXPERA)

Geothermal Power Plants Require Enhanced Due Diligence

Geothermal projects can present environmental issues different from solar and wind facilities. The investor should investigate geothermal fluid management, reinjection practices, emissions, water impacts and historical complaints. The legal due diligence should be coordinated closely with environmental and technical specialists. If the seller represents that all geothermal fluids have historically been handled in compliance with applicable requirements, the buyer should verify that statement against operational records rather than relying solely on management confirmation.

Thermal Power Plants Carry Greater Legacy Risk

Older thermal generation facilities can present significant historical environmental exposure. Issues may include emissions, ash storage, fuel storage, wastewater, hazardous materials and contaminated soil. Environmental due diligence for these assets should therefore be considerably more detailed than a simple permit review. Where physical contamination is possible, technical environmental investigations may be essential. A foreign investor purchasing an older facility without examining historical site use can inherit substantial economic exposure.

Solar Power Plants Are Not Environmentally Risk-Free

Solar projects generally have lower operational pollution risks, but environmental due diligence remains necessary. Issues can involve construction waste, land disturbance, drainage, damaged panels, transformer oils, environmental assessment compliance and end-of-life equipment management. Large solar projects can also face environmental or land-related litigation. The buyer should therefore avoid assuming that renewable technology means zero environmental liability.

Wind Power Plant Environmental Risks

Wind projects can face disputes involving wildlife, noise, forest areas, access roads and environmental approvals. Changes to turbine locations or dimensions should also be checked against existing project approvals. If the wind farm was expanded after the original environmental review, the buyer should verify whether the expanded configuration is properly covered.

Who Pays for a Past Environmental Violation After Closing?

There are two separate answers.

Under environmental law, liability depends on the applicable statutory rules and the factual connection between the responsible party and the pollution or damage.

Between buyer and seller, economic responsibility can be allocated through the acquisition agreement.

This distinction is crucial.

An SPA provision stating that “the seller is responsible for all pre-closing environmental violations” may give the buyer a contractual claim against the seller. It does not necessarily prevent authorities from pursuing the legally responsible entity under environmental legislation.

The buyer therefore needs an indemnity that is both legally effective and financially collectible.

Environmental Representations and Warranties

The SPA should contain project-specific environmental representations.

Depending on the facility, these may address environmental permits, compliance history, pollution incidents, contamination, waste management, administrative investigations, litigation and notices from authorities.

The seller should also disclose known circumstances that could reasonably result in a claim.

Generic language stating that the target “complies with all applicable laws” may not provide adequate protection for a power plant acquisition.

Historical Compliance Warranty

The buyer may seek a warranty concerning compliance during an agreed historical period.

The warranty should be tested against due diligence findings.

If previous violations have already been identified, they should not simply disappear into the disclosure letter. The buyer should determine whether they require specific financial protection.

Specific Environmental Indemnities

A specific environmental indemnity is often the strongest contractual response to an identified environmental risk.

Suppose due diligence discovers possible soil contamination around a historical fuel-storage area.

The precise remediation cost is unknown.

The parties can agree that the seller will indemnify the buyer for specified investigation, remediation, administrative and third-party costs attributable to the pre-closing contamination.

This is much stronger than merely relying on a general environmental warranty.

Remediation Cost Indemnity

Environmental remediation can be expensive and difficult to quantify.

The indemnity should therefore specify which costs are covered.

Depending on the transaction, these may include investigation, sampling, consultants, removal, treatment, restoration and other legally required remediation expenses.

The parties should also determine who controls interaction with environmental authorities.

Administrative Fine Indemnity

Where a known historical violation may result in a future fine, the buyer can seek a specific indemnity for penalties arising from the pre-closing conduct.

The agreement should distinguish between seller-period conduct and violations caused by the buyer after completion.

Third-Party Claims

Environmental damage may affect neighboring landowners or other third parties.

The SPA should therefore address third-party claims where relevant.

Article 28 preserves compensation liability arising from environmental damage in addition to the statutory strict-liability framework. (LEXPERA)

Escrow for Environmental Liability

A seller indemnity has limited value if the seller has no assets when the buyer eventually makes a claim.

Environmental liabilities can emerge several years after closing.

For material identified risks, the buyer may therefore negotiate an escrow account or purchase price retention.

For example, if remediation exposure is estimated between USD 2 million and USD 5 million, the buyer may seek to retain an agreed amount until the investigation or remediation is completed.

Purchase Price Reduction

Where the environmental liability is already sufficiently certain, the cleaner solution may be to reduce the purchase price.

The basic transaction logic can be summarized as:

Known and Quantifiable Environmental Cost → Purchase Price Reduction

Known but Uncertain Environmental Risk → Specific Indemnity + Escrow

Unknown Historical Risk → Environmental Warranties + General Indemnity

Critical Operational Risk → Resolve Before Closing

Environmental Insurance

The buyer should review existing environmental and liability insurance policies where applicable.

However, insurance should not automatically be treated as a substitute for contractual protection.

Policies can contain exclusions for known pollution, historical contamination or regulatory fines.

The buyer should verify exactly what is covered and whether the acquisition affects the policy.

Conditions Precedent for Serious Environmental Problems

Some environmental risks are too serious to leave to a post-closing indemnity.

If the facility lacks a critical environmental authorization or faces an immediate risk of operational suspension, the buyer may require the problem to be resolved before closing.

Possible conditions precedent can include obtaining a required authorization, completing remediation, resolving a material regulatory violation or obtaining confirmation concerning a critical environmental issue.

A foreign investor should not pay full value for an operating power plant if a known environmental problem threatens continued operation immediately after closing.

Example: Historical Soil Contamination

A foreign investor acquires a Turkish generation company.

After closing, contaminated soil is discovered beneath an area historically used for fuel storage.

Records show that the contamination likely occurred several years before the acquisition.

The target company may face remediation obligations while the buyer, as its new shareholder, suffers the economic consequences.

A properly drafted pre-closing environmental indemnity can provide contractual recovery against the seller.

Example: Environmental Fine Issued After Closing

A power plant is inspected shortly before acquisition, but no penalty has been issued when the transaction closes.

Six months later, authorities impose an administrative fine relating to the pre-closing violation.

If the SPA specifically allocates pre-closing environmental penalties to the seller, the buyer may seek reimbursement according to the indemnity provisions.

Example: Seller Failed to Disclose Environmental Litigation

A foreign investor acquires a wind project.

After closing, the buyer discovers an existing challenge concerning an environmental approval that was not properly disclosed.

If the SPA contains appropriately drafted environmental and litigation warranties, the buyer may have contractual remedies against the seller depending on the circumstances and agreed limitations.

Environmental Due Diligence Checklist for Foreign Buyers

Before acquiring a Turkish power plant, the investor should review:

Environmental Approvals → Environmental Impact Assessment → Environmental Permits → Historical Inspections → Administrative Fines → Environmental Consultant Reports → Waste Records → Hazardous Materials → Soil Contamination → Water Discharges → Air Emissions → Noise → Environmental Litigation → Neighbor Complaints → Remediation Obligations → Insurance → Seller Disclosures → Environmental Warranties → Specific Indemnities → Escrow → Closing Conditions.

Legal due diligence should be coordinated with technical environmental assessment whenever physical contamination or operational environmental risk is possible.

Frequently Asked Questions

1. Can a buyer become economically exposed to environmental violations committed before acquiring a Turkish power plant?

Yes. Particularly in a share acquisition, historical liabilities affecting the target company can reduce the value of the buyer’s investment after closing.

2. Is environmental liability based on fault in Turkey?

Environmental Law No. 2872 provides strict liability for those responsible for pollution and environmental damage under Article 28. (LEXPERA)

3. Does an asset deal eliminate environmental liability?

Not automatically. Site contamination, continuing operational obligations and other mandatory rules must still be investigated.

4. Can the seller remain responsible for historical contamination?

The SPA can allocate specified pre-closing environmental risks to the seller through warranties and indemnities, but statutory responsibility must be analyzed separately.

5. What is an environmental indemnity?

It is a contractual mechanism requiring the seller to compensate the buyer for specified environmental liabilities covered by the agreement.

6. Should known contamination be covered by a general warranty?

Usually, a specifically identified material risk deserves a specific indemnity or another dedicated protection mechanism rather than reliance only on a general warranty.

7. Can the buyer retain part of the purchase price?

Yes. Escrow or purchase price retention can provide security for material environmental exposure.

8. Are renewable energy projects free from environmental acquisition risk?

No. Solar and wind projects generally have different risk profiles from thermal or geothermal plants, but they can still face environmental approvals, waste, land, wildlife, noise and litigation issues.

9. Should environmental due diligence include physical inspections?

Where contamination or physical environmental risk is reasonably possible, legal document review should be coordinated with appropriate technical environmental assessment.

10. What should a foreign investor do if a serious environmental violation is discovered before closing?

The buyer should quantify the exposure and decide whether to require remediation before closing, reduce the purchase price, obtain a specific indemnity and security, or ultimately refuse to complete the acquisition.

Legal Support for Environmental Risks in Turkish Energy Acquisitions

Environmental due diligence in a power plant acquisition should determine not only whether the project currently holds the necessary approvals but also whether historical activities can generate financial liabilities after the foreign investor takes control.

Firat Fesih Kaya Law Office assists foreign investors, international energy companies and renewable-energy investors with power plant acquisitions in Turkey. Firat Fesih Kaya can assist with environmental legal due diligence, regulatory risk analysis, SPA negotiations, environmental representations and warranties, specific indemnities, escrow structures and disputes arising after closing.

The essential acquisition strategy is straightforward: identify historical environmental problems before closing, determine the party legally exposed to them and contractually allocate the financial consequences before the purchase price is paid.

Phone: +90 312 434 22 22
Mobile Phone: +90 532 769 22 22
Email: info@firatfesihkaya.av.tr
Address: Mevlana Boulevard No: 221, Yildirim Tower, Balgat, Cankaya / Ankara, Turkey