Bornholm Power System The Bornholm power system is a Danish distribution system located on the island Bornholm situated just south of Sweden. ØSTKRAFT is the distribution system operator supplying electricity to more than 28,000 customers at Bornholm. The peak load was 56 MW in 2007. The Bornholm power system is part of the Nordic interconnected power system and power market, and it has many of the characteristics of a typical Danish distribution system. With respect to area, electricity demand and population Bornholm corresponds to approx. 1% of Denmark. The wind power penetration in 2007 was more than 30%, and the system can be operated isolated in island mode. The Bornholm power system therefore is a unique facility for experiments with new SmartGrids technologies.   A detailed overview of the Bornholm power system can be found in the paper "THE BORNHOLM POWER SYSTEM - An overview", which can be downloaded below.                                      The research and educational activities of using the Bornholm power system are divided into 5 main subjects:  Demand Response and Market Island Operation Wind power Integration Experimental Research platform Transportation The overall objective of the research is to develop a smarter low carbon-emission electric power system which can handle an increased share of renewable energy and distributed generation, enable an open market and secure the reliability of supply.       Property   Value   Customers   Number of customers ~28.000 Number of customers (> 100.000 kWh/year) ~300 Total energy consumed 268 GWh Peak load   56 MW Low-carbon energy resources   Wind power plants 30 MW CHP / biomass and coal 16 MW PV (planned) 1.0 MW Biogas plant 2.0 MW Electric vehicles (under roll-out)     Grid   60 kV grid 131 km Number of 60/10 kV substations 16 10 kV grid 914 km Number of 10/0.4 kV substations 1006 0.4 kV grid   1.887 km Communication   Fiber network between 60/10 kV substations   131 km District heating   Number of district heating systems 5 Total heat demand (in 2007)   560 GWh Operation   Normal operation mode Interconnected Nordel Islanding operation capability Continuous                 Lab location:      Østkraft     Rønne, Bornholm