Corporate PPA vs. utility PPA: a guide for businesses

4 min readLast updated 6 August 2026

Direct answer

A corporate PPA is a power purchase agreement in which a company, as the end consumer, buys directly from a producer, without an energy supplier in between. In a utility PPA, an energy supplier buys the power from the producer and resells it to its own customers. The difference lies in who is the producer's direct counterparty and who carries the profile risk.

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Corporate PPA vs. utility PPA: scattered information versus Energy Intelligence

Businesses that want to lock in renewable power at a known price often choose a PPA. But with whom do you sign it: directly with the owner of a solar farm, or with your energy supplier? That distinction determines how much you arrange yourself and how direct your green claim is. It matters to large consumers such as factories and data centres, but through a supplier also to smaller companies that do not want to take an entire farm on their own.

  • In a corporate PPA a consuming business is the direct buyer; in a utility PPA that role belongs to an energy supplier that resells the power to its customers or on the exchange.
  • A corporate PPA offers directness, an own green claim through guarantees of origin and a fixed price; a utility PPA unburdens the buyer and can also bundle smaller offtakers.
  • Both often cover a term of ten to fifteen years; a corporate PPA requires additional arrangements for balancing, usually through a sleeve with an energy company.

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What is the difference between a corporate PPA and a utility PPA?

The distinction lies in the producer's direct counterparty. In a corporate PPA a consuming business buys the electricity directly from the producer, without an energy company in between. In a utility PPA an energy supplier or electricity trader buys the power and resells it: to its own customers or on the electricity exchange. In both cases the producer locks in its revenue for years. The contract always covers the same points: who supplies, how much, at what price and for what term. Only the role on the offtake side differs, and with it who carries the risk of variable production.

  • Corporate PPA: the business itself is the producer's direct buyer.
  • Utility PPA: a supplier or trader buys the power and resells it.
  • In both forms the producer locks in its revenue for years.
  • The difference determines who carries the profile risk of variable generation.

What are the advantages and disadvantages of each?

A corporate PPA offers directness and a strong green claim: the guarantees of origin come directly from an identifiable farm, which appeals to companies that want to decarbonise in their own name. The fixed price gives years of cost certainty. The drawback is complexity. Solar and wind do not always deliver, so you must buy supplementary power and arrange balancing, often through a sleeve with an energy company. These contracts are therefore mainly for large offtakers. A utility PPA unburdens you: the supplier takes over profile and imbalance risk and can bundle several offtakers in a portfolio. That way smaller parties can benefit too, without taking a whole farm or carrying balancing responsibility themselves.

  • Corporate PPA: a direct, identifiable green claim and years of price certainty.
  • Corporate PPA: you arrange supplementary purchasing and balancing yourself, usually via a sleeve.
  • Utility PPA: the supplier takes over profile and imbalance risk.
  • Utility PPA: smaller offtakers can participate together in a portfolio.

When do you choose which form?

The choice depends on your size, your sustainability goal and how much you want to arrange yourself. If you are a large consumer with a stable profile and want to be verifiably green in your own name, a corporate PPA fits. You then accept the longer term and the extra work around balancing. If you mainly want certainty and convenience, or are too small for a whole farm, a utility PPA is more obvious: the supplier arranges the top-up and bundles you with others. The boundary is not hard. Many corporate PPAs still include an ordinary PPA with an energy company for the moments when generation falls away.

  • Large consumer with an own green goal: a corporate PPA fits, provided you can arrange balancing.
  • Smaller offtaker or a need for convenience: a utility PPA through a supplier.
  • Corporate PPAs often still include a supplier contract for top-up.
  • The ten to fifteen year term is a point of attention in both forms.

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