The Danish Energy Agency said the permits have been granted by the country’s minister for climate, energy and supply.
Danish authorities granted a permit for the onshore part of the link in July.
The project to build the Baltic Pipe gas pipeline, connecting Poland with Norway via Denmark, is part of Warsaw’s efforts to diversify gas supplies and reduce the country’s energy dependence on Russia.
The 850-kilometre Baltic Pipe will be able to carry 10 billion cubic metres of natural gas annually, according to the Danish Energy Agency.
Construction work is expected to start in 2020 and take about two years to complete, the agency added.
The Baltic Pipe “is expected to contribute to Poland’s transition from coal to natural gas, which will reduce greenhouse gas emissions,” the agency said.
Polish gas grid operator Gaz-System and Danish firm Energinet in November formally decided to go ahead with plans to build the pipeline.
Source: Danish Energy Agency