Connecting to wind in Romania

2013-06-05 - New substation to connect 84 MW wind farm to the National Transmission Grid

By ABB Communications

Since 2000, a total of 353 gigawatts (GW) of new power capacity has been installed across the EU, 28 percent of which comes from wind. These additions mean that by 2012 wind power was contributing 11 percent of the EU's total power mix with a cumulative installed capacity of 106 GW.

Across Europe, however, there are some areas better suited to wind power than others and Romania has been hailed as one of the top 10 most attractive countries of the world in which to invest in wind energy because of its high potential for wind, with a feasible capacity of 14,000 MW (Ernst & Young).

Today, Romania has a total installed wind power capacity of around 2,000 MW, which is contributing towards about 7 percent of the country’s electricity and can on certain days exceed the power generated by its only nuclear power plant or its entire collection of active hydropower plants.

As the proportion of wind generation in the region increases so too will the infrastructure required to connect it to the National Transmission Grid. As part of Romania’s push to take advantage of its wind energy potential, ABB will install a brand new turnkey 110/33 kilovolt (kV) substation in Tulcea county, a part of the Dobrogea region known for its high wind power potential, which will allow a new 84 MW wind farm to be connected to the grid.

This project is a turnkey endeavor, which includes the design, engineering, equipment supply, erection and commissioning of the substation. The Dorobantu -Topolog substation will have a rated capacity of 126 megavolts-ampere (MVA) and will be connected by a 15 km long 110 kV underground cable to the Rahman substation, a substation previously built by ABB. The outdoor high-voltage (HV) substation will have a single busbar, one line bay and two transformer bays. The 30 kV indoor substation will be equipped with compact gas-insulated switchgear (GIS), as well as control and protection devices and will comply with the substation automation protocol IEC 61850 to facilitate communication within the substation and beyond.

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