A Corporate Power Purchase Agreement – hereinafter referred to as CPPA – is the company-oriented version of a Power Purchase Agreements (PPA). While PPAs generally encompass all long-term electricity supply contracts between producer and buyer, CPPA specifically focuses on the company. Without the classic route through an energy supplier, it is the direct contractual partner of a renewable energy plant. The contract is aligned with its needs and sustainability goals.
Today, CPPAs are considered one of the most effective tools for companies to decarbonize their energy supply, secure long-term predictable electricity costs, and demonstrate credible ESG goals.
What is a CPPA? Simply explained definition
A Corporate Power Purchase Agreement is a Long-term, private electricity supply contract between an energy producer (e.g., operator of a solar or wind farm) and an industrial company or commercial customer. The customer procures electricity – physically or in accounting terms – directly from a renewable energy source, typically at a pre-agreed, fixed, or structured price.
The special feature compared to a classic green electricity tariff: With a CPPA, there is a direct, traceable, and long-term connection between the company and a specific renewable energy plant. This makes CPPAs not only relevant for energy procurement but also for ESG reporting, CSRD reporting obligation and the Scope 2 accounting according to the GHG Protocol is particularly valuable.
CPPA vs. PPA: What is the difference?
The term PPA describes the overarching contractual model – CPPA is the variation in which a company (Corporate) acts as the buyer. In practice, the terms are often used interchangeably, especially when the context is clear. The relevant difference lies less in the contract structure and more in the buyer side:
- PPA General Customers can be energy suppliers, traders, or companies.
- California Privacy Protection Agency The customer is always a company that uses the electricity for its own operations – not for resale.
What types of CPPA are there?
Physical CPPA
The electricity is supplied directly from the producer, [the] company – either via the public grid (offsite) or directly via a dedicated line (onsite). The company receives physical green electricity and pays the agreed-upon CPPA price for it.
Onsite-CPPA: The generation facility is located on or directly on the company premises (e.g., photovoltaics on the hall roof, ground-mounted PV on the operating site). The electricity flows directly to the consumer without grid usage – grid fees are completely eliminated. This model is particularly economical for industrial companies with high and constant electricity demand.
Offsite-CPPA The plant is located at a different site and is connected to the public power grid. Delivery is accounted for (balancing groups), meaning the amount of electricity generated is credited to the company, even if electricity from the grid mix flows physically. Often used Guarantees of origin (HKN) included.
Virtual CPPA / Financial CPPA (Financial Model)
With Virtual CPPA (also known as vCPPA or synthetic PPA), there is no physical electricity delivery. Instead, companies and producers enter into a Contract for Difference. The producer sells their electricity on the market, and the company buys electricity as usual from their supplier. If the market price is below the agreed-upon strike price, the company pays the difference to the producer; if it is above, the company receives a refund.
Virtual CPPAs are particularly suitable for companies with multiple locations, an international focus, or when a physical supply path is not feasible. However, stricter requirements apply to ESG accounting – the green electricity effect must be proven separately through certificates of origin.
Sleeved CPPA
An intermediary - usually an energy supplier or trader - is placed between the producer and the company. This intermediary handles balancing, accounting, and settlement. This model is particularly suitable for companies without their own balancing group management.
Current market situation: Where does the CPPA market stand?
The German PPA market – and with it the CPPA market – experienced a significant consolidation phase in 2025. According to the PPA Market Analysis 2025 by the German Energy Agency (dena) and Pexapark (April 2026), the following developments are particularly relevant for corporate off-takers:
Germany is falling back in the European rankings. After strong years in 2023 and 2024, Germany has fallen from second to fourth place behind Spain, Italy, and Poland. The number of PPA (Power Purchase Agreement) closings decreased from 51 to 27, and the contracted capacity from 2.2 to 1.3 GW. Market activity was heavily concentrated in the fourth quarter of 2025.
Decline in corporate demand – with recovery at year-end. Corporate demand for PPAs noticeably declined in 2025. Reasons included many companies having already met their renewable electricity targets early, lower demand for solar profiles, and economic uncertainties. However, a recovery was observed towards the end of 2025.
Transportation, automotive, and chemicals dominate. The largest corporate buyer sectors in 2025 were transportation (33 %), automotive (28 %), and chemicals (18 %). Together, these three sectors accounted for more than three-quarters of the total corporate PPA volume.
Largest CPPA Buyers 2025 in Germany: Shell (343 MW), Deutsche Bahn (179 MW), and Mercedes-Benz (140 MW) – a clear signal that CPPA agreements are currently primarily established in the environment of energy-intensive industries and large fleet operators.
Prices continue to fall. Indicative CPPA prices in 2025 were, depending on the technology:
- Solar PPAs: 35–45 EUR/MWh
- Onshore Wind PPAs: 55–65 EUR/MWh
- Offshore wind PPAs: 65–75 EUR/MWh
(Basis: 10 years, „as produced” structure; Source: Renewable Energy Market Offensive / Pexapark)
Trend towards shorter runtimes. Increasingly, CPPAs with terms of less than five years are being concluded, especially for existing onshore wind farms exiting Renewable Energy Sources Act (EEG) subsidies. Companies are using short-term CPPAs as a form of ecological compensation, for example, to meet requirements for the planned 5-cent industrial electricity price to be met by 2026.
Why do companies enter into CPPAs? Key benefits
1. Predictable, long-term stable energy costs
Unlike the short-term spot market, a CPPA offers fixed or structured electricity prices over many years. This protects against volatility and significantly simplifies corporate planning – especially in energy-intensive industries. At CUBE CONCEPTS, for example, contract terms of more than 20 years are possible.
2. Direct CO₂ Reduction and Credible ESG Reporting
A CPPA creates a direct, traceable link between a company and a specific renewable energy generation facility. This is particularly relevant for Scope 2 accounting according to the GHG Protocol (market-based method) and significantly better fulfills the requirements of CSRD reporting than the mere purchase of guarantees of origin.
3. Security of Supply and Independence
Companies that enter into long-term CPPA agreements reduce their dependence on energy suppliers and general price fluctuations on electricity exchanges. Onsite models also eliminate grid fees, which have risen sharply in recent years.
4. Contribution to the energy transition
PPAs enable the construction of new renewable energy facilities that could not be financed without long-term purchase guarantees. Companies thus actively contribute to the decarbonization of the electricity system – an increasingly important argument for investors, customers, and regulators.
What kind of companies is a CPPA suitable for?
A CPPA is generally suitable for companies that:
- have high electricity requirements (from approx. 5–10 GWh/year for offsite models),
- pursue long-term CO₂ reduction targets and credibly demonstrate them,
- want to hedge against electricity price risks,
- have no or limited space for on-site solutions and
- want to actively position themselves in the area of sustainability.
Companies from the transport and logistics, automotive, chemical and basic industries, as well as data centers and technology corporations, are currently particularly active.
Challenges and Risks of CPPAs
Profile risk and negative prices (especially with solar)
Solar PPAs came under pressure in 2025: Nearly a quarter of German solar power generation occurred during periods with negative electricity prices – a historical high. This means that solar power plants produce at precisely the times when electricity is least valuable. For CPPA off-takers, it is therefore important to carefully negotiate contract clauses for negative price hours. Clauses that share this risk between seller and buyer have now become established in the market.
Regulatory uncertainty
EEG novellas, ongoing reform processes for grid feesAgnesThe uncertain future of German industrial electricity prices and the discussion around electricity market models are currently complicating the long-term calculation of CPPA projects. All of these reservations have significantly complicated project planning and profitability calculations in Germany since mid/late 2025.
Runtime and Flexibility
Long-term CPPAs bind companies – this can become a challenge with changing business models or decreasing energy demand, provided they are not terminable. Short-term CPPAs (under five years) offer more flexibility, but also less price certainty. Additionally, electricity prices are usually higher in these cases.
Contract Design Complexity
CPPAs are individual, complex contracts that require legal, energy industry, and commercial expertise. Engaging an experienced and specialized service provider with proven frameworks, such as CUBE CONCEPTS, is recommended.
CPPA and Battery Storage: The Market is Evolving
A growing trend complements the classic CPPA model: the combination with Battery storage (BESS – Battery Energy Storage Systems). Due to declining capture rates – that is, the ratio between a plant's actual revenue and the average market price – new solar plants are increasingly being planned in conjunction with storage systems, so-called Co-locationProjects.
This has direct implications for CPPAs:
- The capture rate of co-located projects is significantly more stable than that of solar-only facilities.
- New contract structures are emerging that combine and market solar generation and storage.
- The Solar peak law and the new demarcation option for EEG plants with battery storage according to Misspell further improve the economic viability of co-located projects.
In parallel, independent battery storage projects are increasingly financing themselves through so-called Flexibility Purchase Agreements (FPAs) – this is, in a way, the CPP A equivalent for flexibility instead of electricity generation. The total volume of BESS offtake agreements in Germany more than doubled in 2025 compared to the previous year (from 524 to 1,092 MW).
Market outlook: What awaits CPPA buyers?
For 2026 and the following years, the following developments are emerging:
Onshore wind is becoming more attractive. Through heavily overbid EEG tenders and declining contract values (most recently 60.6 EUR/MWh for onshore wind), more projects are likely to turn to the PPA market. The CPPA market for new onshore wind projects is likely to pick up.
Solar projects with storage are displacing pure solar CPPA agreements. Stand-alone solar systems are increasingly under pressure due to falling capture rates. Combined solar-plus-storage projects with integrated contract structures are forward-looking.
Short-term CPPAs as an entry tool. Especially for companies entering into a CPPA for the first time or those wanting to wait for regulatory developments, short-term contracts (under five years) offer an attractive entry opportunity.
Industrial electricity prices structurally strengthen CPPA demand. The introduction of the 5-cent industrial electricity price as of 2026 – and the requirement to conclude a CPPA as an ecological consideration – is likely to sustainably stimulate the market.
Conclusion: CPPA as a Strategic Instrument for Companies
The Corporate Power Purchase Agreement is far more than a power supply contract. It is a strategic tool for decarbonization, cost stabilization, and positioning in ESG competition.
The German market experienced a consolidation phase in 2025 – but the structural drivers are intact: increasing requirements for sustainability proof, competitive prices for wind and solar power, new regulatory incentives, and growing interest in combined solar-storage marketing.
For companies with significant electricity needs, the most important question today is no longer onbut which CPPA model best suited to your own strategy.