Daily Accounting and Information System
The PSIDaisy billing system, developed by PSI's subsidiary PSIBüsing & Buchwald GmbH, encompasses contractual quantities, demand calculation and invoicing. It's system concept and functional characteristics were designed to completely meet the requirements of the liberalised market.
The major areas of application of PSIDaisy include:
- Acquisition of declared and measured quantities
- Allocation of station quantities to contracts
- Confirmation of contractual billing quantities
- Demand calculation
- Billing of gas trading and selling customers with special contracts
- Billing of transport and storage contracts
- Invoice verification of gas purchase contracts
