Virtual power purchase agreements (VPPAs)—also called synthetic or financial PPAs—have become the dominant tool for corporates buying clean energy at scale without hosting solar on their own facilities. For developers and investors, VPPAs open access to creditworthy offtakers; for buyers, they deliver additionality and sustainability reporting with geographic flexibility.
How a virtual PPA works
In a VPPA, a corporate buyer contracts for the output of an offsite solar project at a fixed or indexed price. The project sells power into the wholesale market; the buyer and seller settle the difference between the market price and the contract price. The buyer retains renewable energy certificates (RECs) or environmental attributes, depending on structure.
Key features:
- No on-site installation required at the buyer's facilities
- Additionality: new generation built because of the contract
- Geographic flexibility: buyer and project need not be in the same utility territory
Why corporates use VPPAs
Large enterprises with nationwide or multi-site footprints often cannot deploy enough rooftop solar to meet clean energy goals. VPPAs let them:
- Meet Scope 2 emissions reduction targets with verifiable REC retirement
- Lock in long-term price visibility against volatile grid rates
- Signal additionality to stakeholders and rating agencies
Learn how commercial and industrial solar complements VPPAs for facilities that can host on-site generation.
Structuring considerations
Bankable VPPAs require the same rigor as physical PPAs:
- Creditworthiness of the corporate offtaker
- Settlement mechanics and collateral for mark-to-market exposure
- REC ownership and retirement protocols
- Tenor and volume aligned with project size and production profile
Developers must ensure the VPPA supports the full capital stack—tax equity, debt, and sponsor equity.
Risks for buyers and sellers
Buyers face market-price exposure in the settlement leg; sellers face offtaker credit and curtailment risk. Experienced advisors structure collars, caps, and credit support to balance these exposures.
How Sunlight helps
Sunlight Energy Investments structures and negotiates PPAs—including virtual structures—for corporates, developers, and asset owners. Our PPA advisory team brings owner-operator experience to every engagement.
To discuss a corporate procurement strategy or offtake for a development project, book a consultation or contact our advisory team.