Electricity Market Development and the Competitiveness of Industrial Consumers in Bulgaria

Industrial electricity costs depend on more than the day-ahead price. This paper examines how the development of Bulgaria's electricity market since 2004 has changed the position of large industrial consumers. The analysis follows the opening of free-market trading, the subsequent development of balancing, exchange trading and network rules, and the increasing role of regional market integration. It then considers how these changes affect the cost and risk position of industrial firms. Aurubis Bulgaria is used as a longitudinal company case because it participated in the first freely negotiated electricity transaction and, two decades later, is investing in production expansion, energy efficiency, photovoltaic generation, and infrastructure. The Bulgarian experience shows that liberalisation created useful electricity purchasing options but at the same time transferred more responsibility for forecasting, contracting and risk management to firms. Regional integration has increased access to suppliers and resources while making a national day-ahead price advantage less durable. For industrial competitiveness, the practical issue is therefore the quality of market access, cost allocation and risk-management options available to firms over the investment horizon.