The Dogger Bank Teesside A and B Offshore Wind Farm Order 2015

Detailed offshore design parameters

6.—(1) Wind turbine generator foundation structures must be of 1 or more of the following foundation options: monopole, multi-leg or gravity base.

(2) No wind turbine generator foundation structure employing a footing of driven piles may—

(a) have more than 6 driven piles;

(b) in the case of single-pile structures, have a pile diameter exceeding 12 metres or employ a hammer energy during installation exceeding 3,000 kilojoules;

(c) in the case of structures with 2 or more piles, have a pile diameter exceeding 3.5 metres or employ a hammer energy during installation exceeding 2,300 kilojoules.

(3) No wind turbine generator foundation may have—

(a) a main supporting structure exceeding 61 metres in width;

(b) a seabed footprint (excluding subsea scour protection) exceeding 2,376 square metres;

(c) a seabed footprint (including subsea scour protection) exceeding 5,675 square metres.

(4) The foundations for wind turbine generators must be in accordance with the wave reflection co-efficient values set out at Table 3.6 in Chapter 5, Appendix B (foundation characterisation study) of the environmental statement.