CurveBlock
Power purchase agreements (PPAs) provide predictable revenue streams that underpin project financing. For small generators, directly contracting with corporate offtakers or suppliers can be difficult because of minimum contract sizes, credit requirements and operational obligations. Aggregators create a composite counterparty by bundling many small assets, enabling the contracting counterparties to interact with a single entity rather than many small sellers.
Aggregators may offer commercial structures that improve bankability: portfolio-level PPAs, credit support arrangements such as guarantees or insurance, and treasury functions that smooth mismatches between generation and payment timings. They also often provide operational services — meter data collection, forecasting and settlement management — that make small assets acceptable to counterparties who otherwise would not accept individual, intermittent suppliers.
Regulatory arrangements influence how easily such structures can be implemented. Market codes and supplier licensing, settlement timescales and supplier obligations affect the viability and cost of sleeved PPAs and third-party offtake. Small generators therefore rely on commercial intermediation and careful contract design to manage merchant exposure, counterparty risk and the administrative burden of multiple small contracts.
For retail investors considering fractional shares in renewable projects, the presence of a reputable aggregator or commercially robust offtake arrangements can materially affect risk and revenue stability. Understanding the aggregator’s contractual commitments, credit support and operational role is therefore a core part of assessing project robustness.