Where the project company delivers its services directly to consumers ("User"), its relationship with those consumers can raise specific complexities associated with the diversity of that customer base, the differing demands made by customers, the involvement of regulatory agencies designed to protect consumers, public and natural resources. On the other hand, the project company may be required to deliver services in bulk to a single utility ("Bulk"), in which case the interfaces between the project company and its client are easier to define and manage. The nature of the service delivery obligation is associated with specific risks, for example customer service functions, regulatory interfaces, financial management and accounting.