CurveBlock
Power purchase agreements (PPAs) are often the cornerstone of revenue certainty for renewable assets. Contract length, price indexation, termination provisions and credit support requirements (such as parent guarantees or credit support annexes) determine how resilient revenue is to market shocks. Small projects may rely on aggregators or virtual PPA arrangements to secure routes to market, which introduces counterparty and basis risk tied to the intermediary.
Operation and maintenance (O&M) contracts govern long‑term availability and asset performance. Fixed price O&M, performance‑linked fees and warranty arrangements transfer different slices of operational risk between owner and operator. For technologies such as solar PV, module degradation, inverter failures and planned maintenance cadence are predictable drivers of cost and output; contracts that include clear SLAs and liquidated damages improve predictability for investors.
Counterparty credit risk is central: suppliers, offtakers and service providers may themselves be exposed to market stress. Market rules and licensing regimes administered by Ofgem affect supplier obligations, balancing responsibilities and settlement arrangements; these regulatory backstops influence how easily projects can enforce contract terms and claim for non‑payment or insolvency events.
Retail investors should review who the contractual counterparties are, the credit support provided, the allocation of long‑tail liabilities and the mechanisms for dealing with underperformance. Fractional platforms that aggregate small projects can diversify counterparty exposures and negotiate stronger standard contracts, but investors retain exposure to residual counterparty and operational execution risk embedded in those agreements.