As of 2006, it operates 3,286 km of lines and cables at 150 kV and above, connecting at 51 high-voltage substations. Peak demand for 2006 was 14,846 MW. The sole shareholder is the Dutch Ministry of Finance. == History == TenneT was formed in 1998 when the Dutch electricity industry was liberalised, and was incorporated as a business in 2001 with ...